JPH09160599A - Device and method for playbacking recorded voice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily check the residual amount of being played back phrases by selecting a display LED according to the residual time for playback, flashing it, and increasing the flashing speed when the residual time for playback is a prescribed value or below. SOLUTION: A CPU selects a display LED 25 if the residual time of playback of the presently being played back phrase is, e.g. over 5 minutes, and flashes the display LED 25 once. The CUP selects a display LED 26 when residual time of playback of the presently being played back phrase is, between 1 minute or more and below 5 minutes, and flashes the display LED 26 once. The CUP selects a display LED 27 if the residual time of playback of the presently being played back phrase is, between 30 seconds or more and below 1 minute, and flashes the display LED 27 once. The CUP selects the display LED 27 if the residual time of playback of the presently being played back phrase is below 30 seconds, and flashes the display LED 27 twice. In this case, flashing is achieved at a speed twice the normal flashing speed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound recording / reproducing apparatus and a sound recording / reproducing method, and more particularly to a sound recording / reproducing apparatus and a sound recording / reproducing method for reproducing a sound signal from a series of stored sound data.

[0002]

2. Description of the Related Art First, for convenience of explanation, the following terms are defined.

(1) A phrase is a recording unit of a series of audio data recorded from the start of recording to the end of recording.

(2) A block is a data storage unit having a predetermined data storage capacity, and these blocks collectively form a data storage area of the data storage means.

(3) A frame is a minimum recording unit of voice data, and a plurality of frames are assembled to form a phrase.

In this type of conventional voice recording / reproducing apparatus, a microphone is used to convert voice of conversation or the like in a conference into a voice signal which is an electric signal, and the voice signal is A / D converted and encoded. After that, it is known that data is compressed and stored as voice data in a RAM, which is a semiconductor memory, and the voice data is reproduced again.

FIG. 1 is an external view of a conventional voice recording / reproducing apparatus.

The conventional voice recording / reproducing apparatus 1 is provided with a microphone, various keys, switches and the like, which are necessary for recording and reproducing a voice signal, and a display LED, but only those necessary for explaining the prior art will be explained. To do.

2 is a power switch, 3 is a built-in microphone,
Reference numeral 4 is an audio volume, and 5 is an earphone jack.

Reference numeral 6 denotes a recording key. Recording is started by pressing this key once during standby and quickly releasing it (hereinafter referred to as "click"). Also, during recording,
The display LED 37 provided on the recording key 6 is lit to indicate that recording is in progress. If the recording key 6 is clicked again during recording, the recording will stop.

Reference numeral 7 is a playback key. By clicking this key during standby, the recorded voice data is played back as a voice signal and played back through an earphone (not shown) connected to the earphone jack 5. Can be heard. Also, during reproduction, the display LED 37 blinks to indicate that reproduction is in progress.

Reference numeral 8 denotes a fast-forward key. When this key is clicked during standby, the designation moves from the currently designated phrase to the next newly recorded phrase in terms of time, and further the playback key 7 is clicked. If so, the phrase is played back. When the fast-forward key 8 is clicked during playback, the phrase currently being played is moved to the beginning of the next newly recorded phrase in time and played, and when the fast-forward key 8 is continuously pressed during playback, With the fast-forward speed kept constant, the phrase currently being played is fast-forwarded in proportion to the time it is held down.

Reference numeral 9 is a reverse return key. When this key is clicked during waiting, the designation moves to the next phrase recorded earlier in time than the currently designated phrase,
Further, when the reproduction key 7 is clicked, the phrase is reproduced. Also, reverse key 9
If you click during playback, you will return to the beginning of the phrase that is currently playing and play the same phrase again. Also, if you press and release this key twice quickly (hereinafter referred to as "double-click"), the current playback will start. The phrase that was recorded earlier than the phrase is moved to the beginning of the previous phrase and played back. If you continue to press the reverse key 9 during playback, press it while keeping the reverse speed constant. The phrase currently being played is reversed in proportion to the continued time.

[0014]

However, in the conventional voice recording / reproducing apparatus 1, as described above, the display LED 37 is used.
By blinking, it is displayed to indicate that it is playing, distinguishing it from recording, but the display merely indicates that it is playing, and the conventional voice recording and playback There is a problem that the operator of the device 1 cannot confirm the remaining amount of the phrase being reproduced.

The present invention has been made to solve the above problems, and provides a voice recording / reproducing apparatus and a recording / reproducing method capable of easily confirming the remaining amount of a phrase being reproduced. The purpose is to

[0016]

In order to achieve the above object, a voice recording / reproducing apparatus of the present invention according to claim 1 converts a series of voice signals input from the start to the end of recording into a digital value voice. In a voice recording / reproducing apparatus for converting a data into data and storing the same, and reproducing a voice signal from a designated series of voice data, time data storage means for storing time data indicating a recording time of the series of voice data; Time data writing means for writing the time data in the time data storage means in association with the recording of the series of audio data, time data reading means for reading the time data stored in the time data storage means, and the time The remaining recording time is calculated by subtracting the time for reproducing the series of audio data from the recording time indicated by the time data read by the data reading means. A remaining time calculating unit that, characterized by comprising the remaining time display means for displaying the remaining recording time during which the remaining time calculation means has calculated.

According to a second aspect of the present invention, there is provided the voice recording / reproducing apparatus according to the first aspect, wherein the remaining time display means comprises at least two or more lighting display means. The display means is characterized by displaying the recording remaining time calculated by the remaining time calculating means when turned on.

According to a third aspect of the present invention, there is provided a voice recording / reproducing apparatus according to the first aspect, wherein the remaining time display means comprises at least two blink display means. The display means displays the remaining recording time calculated by the remaining time calculation means by repeating blinking.

According to a fourth aspect of the present invention, there is provided a voice recording / reproducing apparatus according to the third aspect, wherein the blinking display means has a remaining recording time of the series of voice data being reproduced for a predetermined time. In the following cases, the speed is increased as compared with the normal flashing speed.

In the voice recording / reproducing method of the present invention according to claim 5, a series of voice signals input from the start to the end of recording is converted into voice data of digital value and stored.
In the audio recording / reproducing apparatus of the audio recording / reproducing apparatus, which comprises time data storage means for storing time data indicating a recording time of the series of audio data, and reproduces an audio signal from the specified series of audio data. The first step of writing the time data in the data storage means in association with the recording of the series of audio data, the second step of reading the time data stored in the time data storage means, and the second step of reading the time data. And a fourth step of displaying the remaining recording time calculated in the third step by subtracting the time for reproducing the series of audio data from the recording time indicated by the time data. And a step.

The voice recording / reproducing method of the present invention according to claim 6 comprises at least two or more lighting display means, and in the voice recording / reproducing method of the voice recording / reproducing apparatus according to claim 5, the lighting display means is provided. It is characterized by including a fifth step of displaying the remaining recording time calculated in the first step by turning on the light.

The voice recording / reproducing method of the present invention according to claim 7 comprises at least two or more blinking display means, and the voice recording / reproducing method of the voice recording / reproducing apparatus according to claim 5 comprises: It is characterized by including a sixth step of displaying the remaining recording time calculated in the first step by repeating blinking.

An audio recording / reproducing method of the present invention according to claim 8 is the audio recording / reproducing method according to claim 7, wherein in the sixth step, the remaining recording time of the series of audio data being reproduced is a predetermined time. In the case of the following, it is characterized by including a seventh step of increasing the flashing speed as compared with the normal flashing speed.

According to a ninth aspect of the present invention, there is provided an audio recording / reproducing apparatus for reproducing an audio signal from a stored series of audio data, wherein the remaining amount of the series of audio data being reproduced is calculated. And a remaining amount display unit for displaying the remaining amount calculated by the remaining amount calculation unit.

The voice recording / reproducing method of the present invention according to claim 10 is the voice recording / reproducing method of a voice recording / reproducing apparatus for reproducing a voice signal from a series of stored voice data,
The method is characterized by including an eighth step of calculating the remaining amount of the series of audio data being reproduced, and a ninth step of displaying the remaining amount calculated in the seventh step.

An information storage medium of the present invention according to claim 11 records the voice recording / reproducing method according to any one of claim 5, claim 6, claim 7, claim 8 and claim 10. .

[0027]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 is an external view of a voice recording / reproducing apparatus according to the present invention.

The voice recording / reproducing device 10 is provided with a microphone, various keys and switches necessary for recording and reproducing a voice signal.

Reference numeral 11 denotes a power switch, which can be turned on / off by moving the power from the two batteries 13 housed in the battery box 12 by moving it in the direction of the arrow in the figure. When the power switch 11 is in the "ON" position, electric power is supplied from the battery 13 to the electric circuit provided in the voice recording / reproducing device 10, and the electric circuit performs a predetermined circuit operation.

Reference numeral 14 is a built-in microphone, which converts a voice such as a conversation in a conference into a voice signal which is an electric signal and inputs the voice signal into a voice reproduction LSI described later.

Reference numeral 15 is a playback key. By clicking this key, the recorded voice data is played back as a voice signal, and the playback sound is heard through an earphone (not shown) connected to the earphone jack 16. When the power switch 11 is set to the "ON" position and the play key 15 is clicked, the most recently recorded phrase is played. Further, during reproduction, in order to indicate to the operator that reproduction is in progress, any one of the display LEDs 25 to 27 blinks according to the remaining time. For example, the voice recording / playback apparatus 10 according to the present invention is
When the remaining time is 5 minutes or more, the LED 25 turns 1 minute or more 5
LED 26 if less than 1 minute, LED if less than 1 minute
27 is configured to blink, and when the remaining time is less than 30 seconds, the blinking speed of the LED 27 becomes faster than usual, and the operator is informed that the remaining reproduction time has decreased. However, these times are merely examples and are not limited to these.

In the embodiment according to the present invention, the display LED 25 or the display LED 25 is provided for displaying to the operator that the reproduction is in progress.
27 display LEDs are used, but instead of these display LEDs, red and green light emitting diodes are incorporated in one display LED, and they are made to emit light individually or simultaneously, and red, yellow. And display L that can display three colors of green
By adopting the ED, it is possible to realize the functions of the three display LEDs with one display LED. For example, when the remaining time is 5 minutes or more, the green is blinked, when the remaining time is 1 minute or more and less than 5 minutes, the yellow is blinked, and when the remaining time is less than 1 minute, the red is blinked. In this case, the blinking speed of red may be configured to blink faster than usual.

Then, during playback, the playback key 1 is again pressed.
When 5 is clicked, the reproduction is stopped and the blinking display LED is turned off.

Reference numeral 17 is a voice volume for adjusting the volume of the reproduced sound. Audio volume 17 in the direction of the arrow
By rotating, the playback volume increases,
It gets smaller.

Reference numeral 18 denotes a fast-forward key. When this key is clicked during standby, the designation moves from the currently designated phrase to the next newly recorded phrase in time, and the play key 7 is clicked. If so, the phrase is played. If the currently specified phrase is the most recently recorded phrase (hereinafter referred to as "latest phrase"), clicking this key causes the oldest recorded phrase (hereinafter referred to as "oldest phrase"). The designation is moved to.

When the fast-forward key 18 is clicked during reproduction, the phrase being currently reproduced is moved to the beginning of the phrase newly recorded next, and the phrase is reproduced. If the phrase currently being reproduced is the latest phrase, the phrase is reproduced. , It moves to the beginning of the oldest phrase and plays it. Further, if the fast-forward key 18 is continuously pressed, the phrase currently being reproduced is fast-forwarded and reproduced according to the length of time the key is kept pressed. It is also possible to limit the maximum value of the feed rate. Also, during this fast-forwarding, either the display LED 25 to the display LED 27 blinks according to the remaining time of the phrase, and the blinking speed becomes faster according to the fast-forwarding speed. For example, when the remaining time is 5 minutes or more, the LED
The LED 26 blinks when 25 is 1 minute or more and less than 5 minutes, and the LED 27 blinks when 25 minutes is less than 1 minute.

In the embodiment according to the present invention, the display LED 25 or the display LE is used to display the remaining time to the operator.
Although three display LEDs of D27 are used, similar to the above, by replacing the display LEDs with a display LED capable of displaying three colors of red, yellow and green, three display LEDs can be displayed. The function of the LED can be realized by one display LED. For example, green may be blinked when the remaining time is 5 minutes or more, yellow when the remaining time is 1 minute or more and less than 5 minutes, and red when the remaining time is less than 1 minute.

Reference numeral 19 is a reverse key, and when this key is clicked during standby, the designation moves to the previous phrase recorded earlier in time than the currently designated phrase, and further the playback key 7 is pressed. If clicked, the phrase is played. When the currently specified phrase is the oldest phrase and the key is clicked, the specification moves to the latest phrase.

If the reverse key 19 is clicked during playback, the phrase currently being played back is returned to the beginning and the same phrase is played again. If this key is double clicked during playback, the phrase being played now is selected. Also, the phrase is moved to the beginning of the previous phrase and is played back. However, if the phrase currently being played is the oldest phrase, the phrase is moved to the beginning of the latest phrase and played. Further, if the reverse key 19 is kept pressed, the phrase currently being reproduced is returned in reverse according to the length of time the key is pressed, and the longer the time the key is pressed, the higher the feed speed. However, it is possible to limit the maximum value of the feed rate.
Further, during the reverse return, the display LED 25 to the display LED 27 blink according to the remaining time of the phrase, and the blinking speed increases according to the reverse return speed. For example, when the remaining time is 5 minutes or more, the LED 25 is 1 minute or more and less than 5 minutes, and the LED 26 is L when the remaining time is less than 1 minute.
The ED 27 is configured to blink. Also in this case, one display LED may be adopted as in the case of fast-forwarding.

Reference numeral 20 denotes an erasing switch. When the erasing switch 20 is moved in the direction of the arrow in the figure during phrase reproduction and the state is held for a predetermined time of 3 seconds or more,
The phrase being played is erased. However, in the voice recording / reproducing apparatus 10 according to the present invention, the predetermined time for erasing is set to 3
Although the time is set to be longer than or equal to 2 seconds, the time is not limited to 3 seconds as long as the operator does not erase a necessary phrase by an erroneous operation.

Reference numeral 21 is a recording key. By pressing this key only once, recording is started and the built-in microphone 14
The audio signal input by is converted into audio data and written in a flash memory (not shown) described in detail below. Further, during recording, the display LED 25, the display LED 26, or the display LED 27 blinks depending on the remaining recording time in order to display to the operator that the recording is in progress and the remaining recording time. For example, the LED 25 blinks when the remaining time is 5 minutes or more, the LED 26 blinks when the remaining time is 1 minute or more and less than 5 minutes, and the LED 27 blinks when the remaining time is less than 1 minute. If less than, the blinking speed of the LED 27 will be faster than usual,
It is designed to alert the operator. However, these times are merely examples and are not limited to these. In this case as well, as with reproduction, one display LE is displayed.
D may be adopted.

Then, during recording, another recording key 2
When 1 is pressed, recording is stopped and the blinking display LED is turned off.

Reference numeral 22 is a past record key. By pressing this key only once, the past record is put into a standby state and the display LED 24 is turned on. If the past record key 22 is pressed again in this state, the standby state of the past record is canceled and the display LED 24 is turned off. In addition, when the record key 21 is pressed in the standby state of this past recording, the record key 21
It is possible to record from the time when you have been up to 10 seconds after pressing.

Reference numeral 23 denotes a recording time changeover switch. By moving this switch in the direction of the arrow in the figure, the recording time can be changed over to 45 minutes or 90 minutes.

FIG. 3 is a block diagram showing the basic structure of the voice recording / reproducing apparatus according to the present invention.

In FIG. 3, reference numeral 28 denotes a CPU, which, in addition to a microprocessor, has a ROM 28a for storing a control program and a RAM 28b for temporarily storing data and the like, having a plurality of flag areas necessary for control. It controls various input / output devices, manages memory, and processes data. Further, the CPU 28 has
The following various devices and elements are connected via a bus 29 and an I / O interface 30.

Reference numeral 31 is a voice reproduction LSI (hereinafter referred to as "DSP").
It is). Upon recording, the DSP 31 A / D-converts and encodes the audio signal converted by the built-in microphone 14, then compresses the data to create audio data, and stores the audio data in the SRAM 32 that functions as a buffer memory. In addition, during reproduction, the DSP 31
28 reads from the flash memory 33 and SRA
The voice data written in M32 is converted into a voice signal again and output to the earphone 38.

In the voice recording / reproducing apparatus 10 according to the present invention,
The flash memory 33 is used as a RAM for storing voice data and the like. This flash memory 33
Divides a 4-Mbyte data storage area into 64 blocks with management numbers, and stores voice data, phrase numbers, etc. for each block. Further, the SRAM 32 is
It has a data storage area of 32 Kbytes.

Reference numeral 34 denotes an operation key portion, which comprises the above-described reproduction key 15, recording key 21, past recording key 22, fast-forward key 18 and reverse return key 19.

Reference numeral 35 denotes an operation switch section, which is composed of the power switch 11, the erase switch 20 and the recording time changeover switch 23 described above.

Reference numeral 36 denotes a display unit, which is the above-mentioned display LE.
D24 or display LED 27.

Next, the operation of the voice recording / reproducing apparatus according to the present invention having the above-described structure will be described separately for the recording operation and the reproducing operation.

Recording operation: First, when the operator operates the power switch 11 to turn on the power, the CPU 28 searches the data storage area of the flash memory 33.

FIG. 4 is a conceptual diagram showing the relationship between the data storage area of the flash memory 33 and the address.

The flash memory 33 has 000000
It has a data storage area of 4 Mbytes designated by addresses from H to 3FFFFFH. Further, the data storage area is evenly divided into 64 blocks from the 00th block to the 3rd F block, and each block has a data storage area of 64K bytes.

FIG. 5 is a conceptual diagram showing a storage state of voice data in the flash memory 33, and shows a state in which voice data is not written in all the data storage areas of the flash memory 33.

In this state, the CPU 28 reads a predetermined number of data from the start address of each block, judges whether or not the phrase number is written, and
A phrase management table, a phrase-recording order management table, and a phrase-recording amount management table are created in the RAM 28b.

FIGS. 6 and 7 are conceptual diagrams showing a block-phrase management table, a phrase-recording order management table, and a phrase-recording amount management table. FIG.
7A shows a block-phrase management table,
6 (B) and 7 (B) show the phrase-recording order management table, and FIGS. 6 (C) and 7 (C) show the phrase-recording amount management table.

The CPU 28 reads a predetermined number of data from the head address of each block and writes the phrase number in the block-phrase management table. In this case,
Since voice data is not written, "FFH" is written for all phrase numbers to indicate that fact (see FIG. 6A). Further, if data other than "FFH" is written in all of this block-phrase management table, it means that voice data is written in all blocks, so the CPU 28 determines that recording is impossible. .

The CPU 28 creates the phrase-recording order management table after creating this block-phrase management table. In this case, all the phrase data in the block-phrase management table is "FFH". , It is judged that no voice data has been written at all, and as the data indicating the recording order of the phrases, "F
FH "is written (see FIG. 6B).

The CPU 28 creates the phrase-recording order management table and then the phrase-recording amount management table. In this case, all the phrase data in the block-phrase management table is "FFH". Therefore, it is determined that no audio data has been written,
As data indicating the amount of recorded phrases, "FFF" is used for all.
FH "is written (see FIG. 6C).

Next, when the operator presses the record key 21, the recording operation starts.

First, when the recording key 21 is pressed, the CPU 28 refers to the phrase-recording order management table and searches for the data having the largest recording order data other than "FFH". In this case, all data is "FF
Since it is "H", the CPU 28 prepares "00H" as the data to be written in the recording order. However, if the data in the recording order has the largest value other than "FFH", the value is set to 1 Prepare the added data as the data to be written in the order of recording.

Then, the CPU 28 refers to the phrase-recording order management table in ascending order of phrase numbers, and searches for a record in which the recording order data is "FFH", that is, the smallest unused phrase. In this case, since the "00H" phrase corresponds to that, "00H" is written as the data in the recording order (see FIG. 7).
(See (B)), and the phrase to be recorded is
Recognize as "00H" phrase.

Next, the CPU 28 refers to the block-phrase management table in ascending order of block number, and "F"
FH ”, that is, the smallest unused block is searched. In this case, all blocks are“ FH ”.
FH "but the block number is the smallest 0th
Recognize that 0 block is a block to write voice data,
The phrase number "00H" to be recorded is written in the block-phrase management table (see FIG. 7A).

Then, the CPU 28 means that one block is used as the recording amount data of the "00H" phrase of the phrase-recording amount management table. "
After writing "0000H" (see FIG. 7C), CP
When the U 28 outputs a recording command and data indicating a phrase number to the DSP 31, the U 28 starts recording.

Further, when the voice data cannot be written in the block currently being written during recording, the CPU 28 repeats this operation to rewrite the block-phrase management table and continuously pass the voice data to the next block. While writing the data, the recording amount data is rewritten by adding 1 to the recording amount data of the "00H" phrase in the phrase-recording amount management table.

The voice to be recorded is converted into a voice signal by the built-in microphone 14 and input to the DSP 31. DS
In P31, the audio signal is A / D converted and encoded, and then data compression is performed to create audio data, a phrase number is added, and the result is written in the SRAM 32.

FIG. 8 is a conceptual diagram showing a storage state of the audio data written in the SRAM 32.

The DSP 31 informs the CPU 28 that the writing of the frame has started, and at the same time, the sound data consisting of 32 bytes and the phrase number are SR-framed in frame units.
After writing to AM32, write the next frame at address 00
Write from the data storage area specified by 0020H.
Then, this operation is cyclically repeated until the recording stop command is received from the CPU 28.

However, cyclic means address 7FF
After writing up to FFFH, it means returning to address 000000H and repeating writing. If the recording time switch 15 is in the "90 minutes" position,
One frame has 32 bytes, but in the position of "45 minutes", one frame has 64 bytes. Hereinafter, for simplification of description, one frame is 32 bytes.

When the CPU 28 receives a message from the DSP 31 that writing of a frame has started, the SR
The flash memory 33 reads data for one frame from 000000H, which is the start address of the AM 32.
Start writing. Also, as described above, the CPU 2
Since No. 8 has already recognized that the block to which the audio data is written is the 00th block, the audio data for one frame is sequentially written from the data storage area designated by the head address 000000H of the block.

FIG. 9 is a conceptual diagram showing a storage state of voice data in the flash memory 33, showing a state in which one frame of voice data and a phrase number are written in the flash memory 33 (in the figure, Shaded area).

In the flash memory 33, a data storage area of 4 Mbytes is divided into 64 blocks with management numbers 00 to 3F, and each block has a data storage area of 64 Kbytes. Have
Therefore, 2048 frames can be continuously written in one block.

At the time of recording, the CPU 28 recognizes the block in which the voice data of the flash memory 33 is being written, and when the voice data is written in all the data storage areas of the block, the block-phrase management table is assigned with the block number. The blocks are referred to in ascending order, the block in which the audio data is to be written next is selected, and the block-phrase management table and the phrase-recording amount management table are rewritten.

FIG. 10 is a conceptual diagram showing a storage state of voice data in the flash memory 33, and shows a state immediately after the operator presses the recording key 21 again during the recording operation to finish the recording.

The CPU 28 controls the 00th block through the 02nd block.
The voice data and phrase number are written over the three blocks up to the block (hatched part in the figure), and then, at the last address of the last block of the phrase, 2 bytes of data indicating the recording order of the phrase and the last Two bytes of data indicating the number of frames written in the block (that is, the 02nd block) are written. In this case the CPU 28
Is the first recorded phrase as the data indicating the recording order, so "0000H" is written, and if it is assumed that the half of the 02nd block is recorded as the data indicating the number of frames, "03FFH". Write.

FIG. 11 is a conceptual diagram showing a block-phrase management table, a phrase-recording order management table, and a phrase-recording amount management table.

FIG. 11A shows a block-phrase management table. In this case, 00th to 02nd
Since the voice data is written in the blocks and the voice data is not written in the other blocks, the CPU 2
In No. 8, “00H” indicating the first phrase is written as the phrase number of the 00th to 02nd blocks, and the phrase numbers of the other blocks remain “FFH”.

In the standby state immediately after the end of recording, the CPU 28 recognizes "00H" which is the number of this recorded phrase.

FIG. 11B shows a phrase-recording order management table, which is exactly the same as FIG. 7B.

FIG. 11C shows a phrase-recording amount management table. In this case, since the audio data is written in the three blocks of the 00th to 02nd blocks, the CPU 28 writes "0002H" which means the three blocks as the recording amount data of the 00th phrase.

Reproducing operation: Normally, the CPU 28 recognizes the recorded phrase as the phrase to be reproduced in the standby state immediately after the recording. However, when the fast forward key 18 or the reverse key 19 is clicked, the phrase is reproduced. -By referring to the recording order management table, the oldest phrase in the case of the fast forward key 18 is recognized as the phrase to be reproduced in the case of the reverse key 19 and the previously recorded phrase is recognized as the phrase to be reproduced.
In this case, since there is only one recorded phrase,
Clicking the fast forward key 18 or the reverse key 19 does not move the designation of the phrase to be reproduced.

Further, in the voice recording / reproducing apparatus according to the present invention, it is possible to appropriately select and reproduce a plurality of recorded phrases by operating the fast forward key 18 and the reverse return key 19. The explanation is omitted because it is not directly related to the invention.

Next, when the operator presses the reproduction key 7, the reproduction operation starts.

As described above, the CPU 28 recognizes that the phrase to be reproduced is the 00th phrase, which is the latest phrase, and then refers to the block-phrase management table, and the latest phrase to be reproduced from that phrase number. The block number in which the audio data of is written is read and the blocks are reproduced in ascending order of block number. In this case, reproduction is performed in the order of the 00th block to the 02nd block (see FIG. 11).
(A)).

The CPU 28 refers to the phrase-recording amount management table and reads the number of blocks to be reproduced from the phrase number. In this case, the recording amount data is "00".
02H ", the number of blocks is recognized as 3 (see FIG. 11C), and the recording amount data recorded in the final address 4 bytes of the 02nd block having the largest block number (see FIG. 10). ), The total number of frames of the phrase to be reproduced is calculated and obtained by reading the number of frames of the voice data recorded in the last block. In this case, since the voice data is recorded in 2.5 blocks, 2048 × 2 .5 = 5120 (frame).
Also, for convenience of explanation, one block (2048 frames)
It is assumed that the time required to reproduce the audio data of is 3 minutes. Therefore, in this case, 7 minutes and 30 seconds (5120 frames) are recorded.

First, the CPU 28 selects a display LED to blink according to the remaining reproduction time. In this case, since the remaining reproduction time is 7 minutes and 30 seconds, the display LED 25 blinks.

The CPU 28 sequentially reads the voice data of the 00th phrase in order from the beginning of the 00th block, and reads out 000000H which is the beginning address of the SRAM 32.
After writing the audio data in order from the data storage area designated by, a playback command is issued to the DSP 31. At this time, CP
U28 is SR from the total number of frames of audio data to be reproduced.
By subtracting the frame number of the audio data written in the AM 32, the remaining frame number (that is, remaining time) of the phrase being reproduced is recognized, and the display LED to be blinked is changed according to the remaining reproduction time. Further, in particular, when the remaining reproduction time is less than 30 seconds, the blinking speed of the display LED 27 is set higher than usual in order to notify the operator of the fact.

The DSP 31 which has received the reproduction command is SRAM
The audio data compressed in order is read from the data storage area of 000000H which is the start address of 32, the data is expanded, D / A converted, the audio signal is output from the earphone jack 8 to the earphone 38, and the audio is reproduced. To do.

The CPU 28 performs the read and write operations of the audio data until the audio data of the 00th phrase is completely reproduced, that is, until the 02nd block is reproduced or the reproduction key 7 is pressed again. Then, when the reproduction is completed, a reproduction stop command is issued to the DSP 31. Moreover, the writing of the audio data to the SRAM 32 is performed cyclically. However, writing cyclically means repeating writing after writing to the final address of the SRAM 32 and then returning to the first address again.

The DSP 31 cyclically repeats the operation of reading and reproducing the audio data, but stops the reproduction when receiving the reproduction stop command from the CPU 28.

FIG. 12 is a flow chart showing the main routine of the voice recording / reproducing method according to the present invention.

When the operator sets the power switch 11 to the "on" position, the CPU 28 causes the steps S100 to S1.
At 02, the data stored in the flash memory 33 is read to create a block-phrase management table, a phrase-recording order management table, and a phrase-recording order management table.

Next, the CPU 28 carries out step S103.
Since it is just after the power is turned on, the latest phrase is selected as the phrase to be reproduced, and step S104
Move to

In step S104, the CPU 28 determines whether or not the operation key has been operated. If the operation key has not been operated, the process proceeds to step S106.
If the operation key is operated, the key operation subroutine is executed in step S105, and the process proceeds to step S106.

In step S106, the CPU 28 determines whether or not the operation switch is operated. If the operation switch is not operated, the process proceeds to step S104, while if the operation switch is operated, the step is performed. In S107, the operation designated by the operation of the operation switch is performed, the process proceeds to step S104, and this loop is repeated until the power switch 11 is set to the "OFF" position.

FIG. 13 is a flow chart showing a key operation subroutine of the voice recording / reproducing method according to the present invention.

When the key operation subroutine is entered, the CPU 28 determines in step S200 whether or not the recording key 21 has been operated. If the key has not been operated, the process proceeds to step S202. If is operated, a recording subroutine is executed in step S201, and the process proceeds to step S202.

When the CPU 28 enters the key operation subroutine, in step S202, it is determined whether or not the reproduction key 15 has been operated. If the key has not been operated, the process proceeds to step S204. If is operated, the reproduction subroutine is executed in step S203, and the process proceeds to step S204.

In step S204, the CPU 28 determines whether or not any other key is operated. If no other key is operated, the process is ended. On the other hand, if another key is operated, the step 28 is performed. In S205, the operation designated by the key is performed, and the process ends.

FIG. 14 is a flow chart showing a recording subroutine of the voice recording / reproducing method according to the present invention.

When the CPU 28 enters the recording subroutine, the CPU 28 refers to the block-phrase management table in ascending order of block number in step S300, searches for an unstored block of "FFH", and there is no unstored block. If the unstored block exists, the process proceeds to step S301.

The CPU 21 executes DS in step S301.
A recording command is output to P20, and the process proceeds to step S302.

The CPU 21 further proceeds to step S302,
When the same determination as in step S300 is made and if there is no unstored block, a recording stop command is output to the DSP 20 in step S309, and the process ends, while if there is an unstored block, the process proceeds to step S303.

In step S303, the CPU 21 selects the block having the smallest block number among the unstored blocks, and proceeds to step S304.

The CPU 21 executes DS in step S304.
The voice data and the phrase number created by P20 and written in the SRAM 24 are read and written in the flash memory 25, and the process proceeds to step S305.

In step S305, the CPU 21 determines whether or not the recording key 13 has been pressed again, and the recording key 13
If is pressed, a recording stop command is output to the DSP 20 in step S307, and the recording order and recording amount data are written to the flash memory 33 in step S308, and the process ends, but the recording key 13 is pressed. If not, the process proceeds to step S306.

In step S306, the CPU 21 determines whether or not the data is written in all the data storage areas of the block in which the voice data and the phrase number are being written and is in the data full state. ,
On the other hand, if the data is full, the process proceeds to step S302 to search for an unstored block.

FIG. 15 is a flow chart showing a reproduction subroutine of the voice recording / reproducing method according to the present invention.

When the reproduction subroutine is entered, the CPU 28 reproduces the currently designated phrase in step S400, and proceeds to step S401.

In step S401, the CPU 28 calculates and obtains the remaining reproduction time of the specified phrase, and proceeds to step S402.

In step S402, the CPU 28 determines whether or not a predetermined time for defining the blinking speed of the display LED has elapsed. If not, step S404.
On the other hand, if it has passed, step S40
In 3, the display LED selection subroutine is executed, and the process proceeds to step S404.

In step S404, the CPU 28 determines whether or not the reproduction key 15 is clicked. If the key is not clicked, the process proceeds to step S405. On the other hand, if the key is clicked, In step S406, the reproduction is stopped and terminated.

In step S405, the CPU 28 determines whether or not the reproduction of the phrase being reproduced is completed. If not completed, the process proceeds to step S401.
If it has ended, in step S406, the reproduction is stopped and ended.

FIG. 16 is a flow chart showing a display LED selection subroutine of the voice recording / reproducing method according to the present invention.

When the display LED selection subroutine is entered, the CPU 28 determines in step S500 whether or not the remaining reproduction time of the currently reproduced phrase is 5 minutes or more, and 5
If it is more than 5 minutes, the process proceeds to step S502, while if it is more than 5 minutes, the display LED
25 is selected, the display LED is made to blink once, and the process proceeds to step S502.

In step S502, the CPU 28 determines whether or not the remaining reproduction time of the phrase currently being reproduced is 1 minute or more and less than 5 minutes. If it is not 1 minute or more and less than 5 minutes, the process proceeds to step S504. On the other hand, if it is 1 minute or more and less than 5 minutes, the display LED 26 is selected in step S503,
The display LED is blinked once, and the process proceeds to step S504.

In step S504, the CPU 28 determines whether or not the remaining reproduction time of the phrase currently being reproduced is 30 seconds or more and less than 1 minute. If it is not 30 seconds or more and less than 1 minute, the process proceeds to step S506. On the other hand, if it is 30 seconds or more and less than 1 minute, the display LED 27 is selected in step S505, the display LED is made to blink once, and step S5 is performed.
Shift to 06.

In step S506, the CPU 28 determines whether or not the remaining reproduction time of the phrase currently being reproduced is less than 30 seconds. If it is not less than 30 seconds, the process ends.
On the other hand, if it is less than 30 seconds, the display LED 27 is selected in step S507, the display LED is blinked twice, and the process ends. Therefore, when the remaining reproduction time is less than 30 seconds, the flashing is performed at twice the normal flashing rate. However, blinking the display LED 27 twice is merely an example, and may be blinked three times or more in order to further increase the speed.

The information recording medium according to the present invention has the audio recording / reproducing method according to the present invention recorded on a floppy disk, a hard disk, an optical disk (LD, CD, DVD, etc.) or a semiconductor memory.

[0123]

As described above, according to the present invention, one of the plurality of display LEDs is selected to blink according to the remaining reproduction time, and the remaining reproduction time becomes less than the predetermined remaining amount. In this case, since the blinking speed is faster than the normal speed, the remaining amount of the phrase being played can be easily confirmed.

[Brief description of the drawings]

FIG. 1 is an external view of a conventional audio recording / playback apparatus.

FIG. 2 is an external view of a voice recording / reproducing apparatus according to the present invention.

FIG. 3 is a block diagram showing a basic configuration of a voice recording / reproducing apparatus according to the present invention.

FIG. 4 is a conceptual diagram showing a relationship between a data storage area of a flash memory 33 and an address.

FIG. 5 is a conceptual diagram showing a storage state of audio data in a flash memory 33.

FIG. 6 is a block-phrase management table, phrase-
It is a conceptual diagram which shows a recording order management table and a phrase-recording amount management table.

FIG. 7: Block-phrase management table, phrase-
It is a conceptual diagram which shows a recording order management table and a phrase-recording amount management table.

FIG. 8 is a conceptual diagram showing a storage state of audio data written in SRAM 32.

FIG. 9 is a conceptual diagram showing a storage state of audio data in a flash memory 33.

FIG. 10 is a conceptual diagram showing a storage state of audio data in a flash memory 33.

FIG. 11 is a conceptual diagram showing a block-phrase management table, a phrase-recording order management table, and a phrase-recording amount management table.

FIG. 12 is a flowchart showing a main routine of a voice recording / reproducing method according to the present invention.

FIG. 13 is a flowchart showing a key operation subroutine of a voice recording / reproducing method according to the present invention.

FIG. 14 is a flowchart showing a recording subroutine of a voice recording / reproducing method according to the present invention.

FIG. 15 is a flowchart showing a reproduction subroutine of a voice recording / reproducing method according to the present invention.

FIG. 16 is a display LED of a voice recording / reproducing method according to the present invention.
It is a flow chart which shows a selection subroutine.

[Explanation of symbols]

 10 voice recording / playback device 14 built-in microphone 15 playback key 18 fast forward key 19 reverse key 21 recording key 28 central control device 31 voice playback LSI 33 flash memory 34 operation key unit 35 operation switch unit 36 display unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenji Kiyota 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd.

Claims (11)

[Claims] 1. A voice recording / playback apparatus for converting a series of voice signals input from the start to the end of recording into voice data of a digital value and storing the voice data, and playing back the voice signals from the designated series of voice data. Time data storage means for storing time data indicating a recording time of the series of voice data, and time data writing means for writing the time data in the time data storage means in association with the recording of the series of voice data. And a time data reading means for reading the time data stored in the time data storage means, and a recording time indicated by the time data read by the time data reading means, and subtracting the time for reproducing the series of audio data. The remaining time calculation means for calculating the remaining recording time, and the remaining time display for displaying the remaining recording time calculated by the remaining time calculation means Voice recording and reproducing apparatus, characterized by comprising: a stage, a. 2. The audio recording / reproducing apparatus according to claim 1, wherein the remaining time display means includes at least two or more lighting display means, and the lighting display means is lit to calculate the remaining time calculation. A voice recording / reproducing device characterized by displaying the remaining recording time calculated by the means. 3. The voice recording / reproducing apparatus according to claim 1, wherein the remaining time display means includes at least two or more blinking display means, and the blinking display means repeats blinking to display the remaining time. A voice recording / playback device characterized by displaying the remaining recording time calculated by the calculation means. 4. The voice recording / reproducing apparatus according to claim 3, wherein the blinking display means compares the blinking speed with a normal blinking speed when the remaining recording time of the series of voice data being reproduced becomes a predetermined time or less. Then, a voice recording / playback device characterized by increasing its speed. 5. A time data storage for converting a series of audio signals inputted from the start to the end of recording into digital value audio data and storing the converted data, and for storing time data indicating a recording time of the series of audio data. In a voice recording / reproducing apparatus of a voice recording / reproducing apparatus for reproducing an audio signal from the specified series of audio data, the time data storage means stores the time in connection with the recording of the series of audio data. A first step of writing data, a second step of reading the time data stored in the time data storage means, and a time of reproducing the series of audio data from a recording time indicated by the time data read in the second step. By subtracting 3rd step of calculating the remaining recording time, and 4th displaying the remaining recording time calculated in said 3rd step.
A voice recording / reproducing method comprising: 6. The audio recording / reproducing method of the audio recording / reproducing apparatus according to claim 5, further comprising at least two lighting display means, wherein the lighting display means is turned on to light the first display means.
A voice recording / playback method comprising: a fifth step of displaying the remaining recording time calculated in step. 7. The voice recording / reproducing method for a voice recording / reproducing apparatus according to claim 5, further comprising at least two blink display means, wherein the blinking of the blink display means is repeated to calculate in the first step. And a sixth step of displaying the remaining recording time, which is recorded. 8. The voice recording / playback method according to claim 7, wherein the sixth step compares the blinking speed to a normal value when the remaining recording time of the series of voice data being played is less than a predetermined time. And a seventh step of increasing the speed of the voice recording and reproducing method. 9. A voice recording / reproducing apparatus for reproducing a voice signal from a stored series of voice data, a remaining amount calculation means for calculating a remaining amount of the series of voice data being reproduced, and the remaining amount calculation means. A voice recording / reproducing apparatus, comprising: a remaining amount display means for displaying the remaining amount calculated by. 10. An audio recording / reproducing method of an audio recording / reproducing apparatus for reproducing an audio signal from a series of stored audio data, the eighth step of calculating a remaining amount of the series of audio data being reproduced, A ninth step of displaying the remaining amount calculated in the seventh step, and a voice recording / playback method. 11. An information storage medium recording the voice recording / reproducing method according to claim 5, claim 6, claim 7, claim 8, or claim 10.