JPH09247607A - Sound and image recording and reproducing method, recording and reproducing device, and information recording medium - Google Patents

Abstract

(57) Abstract: An audio and image recording and reproducing method capable of recording and reproducing excellent audio and image information, a recording and reproducing device, and a versatile recording mode are provided. To provide an information recording medium. An apparatus main body 1 having a CPU 3 is provided.
And some external devices. The CPU 3 records the voice and image information input by the image input unit 6 or the like in the magneto-optical memory 28 in a time division manner. Further, the time information indicating when the image information was recorded with respect to the voice information and the search information are added to at least one of the voice and the image information at the time of recording. Here, the time information and the search information do not necessarily have to be added to the voice and image information, and can be recorded in the magneto-optical memory 28 as independent files corresponding to the voice and image information. Therefore, it is possible to independently record the image and the audio information while associating them with the temporal information, and it is possible to sufficiently record the audio information.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of recording / reproducing audio / image information, a recording / reproducing method for audio / image, and an information recording medium.

[0002]

2. Description of the Related Art In recent years, a video information processing apparatus capable of recording and reproducing video information including audio and image information has been actively developed, and digitization of video information and increase in capacity of a medium for recording video information have been advanced. Has been. Conventional video information processing devices include video tape recorders and still video cameras.

On the other hand, as an information recording medium in the above device, for example, in the case of a video tape recorder,
A tape medium is used, and a moving image obtained by a two-dimensional area sensor or the like is recorded on the tape medium. At that time, the voice is simultaneously recorded while the moving image is recorded.

In the case of the still video camera,
It uses a small floppy disk or a card type IC memory, etc.
A still image obtained by a three-dimensional area sensor or the like is recorded. At that time, the voice is not recorded, or is recorded for several seconds in accordance with the recording of the image information.

As the information recording medium, in addition to the tape medium, the floppy disk and the card type IC memory as described above, there is known an optical disk memory having a large capacity and capable of high speed access.

[0006]

However, in the above example of the video tape recorder, the image information and the audio information are recorded at the same time, and each information is recorded independently while being associated with the temporal information. It was difficult. In particular, when the audio information is recorded continuously and the image information is recorded intermittently, the time information that indicates at which point in the audio information the image information was recorded, and the audio information and the image information. It was not possible to add the search information for linking to the voice information and the image information, respectively, and record them. Therefore, there is a drawback that it is difficult to quickly search for a desired image from the recorded video information.

In the example of the still video camera,
The recording time of audio information accompanying an image was limited. Similarly to the above, when the audio information is continuously recorded and the image information is recorded intermittently, the time information that indicates at which point in the audio information the image information was recorded and the audio information It was not possible to add and record the search information that links the image information with the audio information and the image information, respectively. Therefore, there is a drawback that sufficient audio information for explaining the image information cannot be recorded.

Further, in the example of the above information recording medium, there is no one that can selectively record a digital signal and an analog signal in the same user area, and the recording mode is limited.

Therefore, the present invention has been made in view of the above circumstances, and is a method for recording and reproducing voice and image, which is capable of recording and reproducing favorable voice and image information at low cost, and It is an object of the present invention to provide a recording and reproducing device, and further to provide an information recording medium having versatility in a recording mode.

[0010]

In order to solve the above-mentioned problems, a voice and image recording method and a recording apparatus according to the present invention continuously input voice information, and select a plurality of still images and moving images. At least one of the image information is intermittently input, and the voice and the image information are recorded in the information recording body.

Further, in the audio and image reproducing method and reproducing apparatus of the present invention, the audio information is reproduced from the information recording medium and continuously outputted, and at least one of the plurality of still images and moving images is reproduced as image information. Reproducing from the information recording body,
Output intermittently.

Further, in the information recording medium of the present invention,
A first information recording track on which an image signal or an audio signal is recorded, wherein the information track is composed of a plurality of sectors, and the sector is capable of recording both a digital signal and an analog signal containing audio or image information; Area and a second area in which position control information including position information for the first area is recorded in advance.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a video information processing apparatus having a recording / reproducing function for audio and images according to the present invention.

The present apparatus continuously inputs audio information, and intermittently inputs image information of at least one of a plurality of still images and moving images, and outputs the audio and image information to an information recording medium (hereinafter referred to as "information recording medium". Video information recording medium ”), and as shown in FIG.
And some external devices connected to the device body 1, the external device being an external image input device 22.
An external voice input device 23, an external control device 24, an external memory 25, a remote controller 26, an external peripheral device 27, an external monitor TV 29, and a printer 3.
0.

Further, the apparatus main body 1 has a bus 2 for transmitting and receiving various kinds of information inside, and is connected to the CPU 3, the internal memory 4, and the image input unit 6 to the bus 2 to store a still image or a moving image. An image input controller 5 that takes in image information and converts the image information into a digital signal or a frequency-modulated analog signal, a compression circuit and a decompression circuit (compression and decompression circuit) 9 for the image information, and a microphone 11 are connected to convert audio information. A voice input controller 10 for converting this voice information into a digital signal or a frequency-modulated analog signal, a voice information compression circuit and decompression circuit (compression / decompression circuit) 12, an external control device interface 13,
The external memory interface 14, the input device 15, the output device 16, the wireless communication circuit 17, and the semiconductor memory 18
A magneto-optical memory unit 19 in which a magneto-optical memory 28 as a video information recording medium is mounted, a monitor output circuit 20, and a printer output circuit 21 are connected.

Here, the internal memory 4 comprises a ROM and a RAM for storing programs and various data used by the CPU 3 for control.

Further, the external controller interface 13
Is capable of being controlled by the external control device 24, and the external memory interface 14 is an external memory 25 such as a floppy disk memory device or an IC memory device.
It is possible to send and receive information to and from.

The input device 15 has such a structure that the user can operate the device independently, and has a plurality of switches for inputting various command keys and inputting timings for capturing image information and audio information. It is composed by.

The output device 16 displays the contents of the command issued to this device, the operating state, the information retrieval screen, etc. in the CPU 3
The display screen is displayed under the control of, for example, a search screen as shown in FIGS. 2 to 4 is displayed based on the information stored in the magneto-optical memory 28. 2 is a search screen showing the contents of the search information file.
Is a search screen showing the contents of a file relating to audio information, and FIG. 4 is a search screen showing the contents of a file relating to image information (for a detailed explanation of the contents displayed on this screen including the search information file, refer to It will be described later with the operation).

The wireless communication circuit 17 receives commands from the remote controller 26 and the external peripheral device 2
It is possible to send the information to 7.

The external control device 24 is a personal computer or the like, and can finely control the input / output of image information and audio information of this device. In addition, the magneto-optical memory 2
The image information recorded in 8 can be processed.
Further, the magneto-optical memory unit 19 of the apparatus body 1 can be used as an external memory of the external control device 24.

The CPU 3 controls the apparatus main body 1 as a whole, and mainly controls the operation relating to recording and reproduction on the basis of the programs and various data stored in the internal memory 4. This is what you do.

Further, the CPU 3 records the audio and image information input from the input unit such as the image input unit 6 in a magneto-optical memory 28 as a video information recording medium in a time division manner (first recording). Function). Further, the CPU 3 records the time information indicating at what time the input image information was recorded with respect to the recorded audio information and the search information necessary for the search, when recording the audio and image information. It has a function as an addition means to be added to at least one of them. However, the time information and the search information necessary for the search do not necessarily have to be added to the audio and image information, and in that case, the CPU 3
It also has a function as a second recording means for recording in an image information recording medium such as the magneto-optical memory 28 as an independent file corresponding to audio and image information.

The image input unit 6 is composed of an image forming system 7, a photoelectric conversion unit 8 and the like, and is connected to the image input controller 5 to enable input of image information. The external image input device 22 is also capable of inputting image information similarly to this.

The voice input controller 10 and the external voice input device 23 enable input of voice information.

Semiconductor memory 18 as a buffer memory
Includes an image input controller 5 and an external image input device 2.
The image information obtained from 2 is compressed and recorded as a digital signal. In addition, the semiconductor memory 1
8, audio information obtained from the audio input controller 10 or the external audio input device 23 is compressed in the same manner as image information and then recorded as a digital signal.

The magneto-optical memory 28 mounted on the magneto-optical memory unit 19 is an optical memory such as a magneto-optical disk. In addition, the magneto-optical memory 28 includes an image input controller 5
Also, image information obtained from the external image input device 22 is compressed and recorded as a digital signal or an analog signal. The image information recorded in the magneto-optical memory 28 or the like is displayed on the external monitor TV 29 or the like via the monitor output circuit 20 or is output to the printer 30 via the printer output circuit 21.

Further, in the magneto-optical memory 28, voice information obtained from the voice input controller 10 or the external voice input device 23 is compressed in the same manner as image information and then recorded as a digital signal or an analog signal. ing. The audio information recorded in the magneto-optical memory 28 or the like is output to the external monitor TV 29 or the like via the monitor output circuit 20. Further, although the magneto-optical memory 28 is shown as an example of the video information recording medium in the above, other optical memory such as a phase change memory may be used, or a magnetic memory such as a hard disk or a large capacity floppy disk. May be.

5 and 6 are explanatory views showing the structure of a magneto-optical memory 28 as an example of a video information recording medium according to the present invention. An example of a magneto-optical disk as the magneto-optical memory 28 will be described here.

In FIG. 5, the recording area of the magneto-optical disk 31 as the magneto-optical memory 28 is divided into a plurality of areas (zones) 32, 33, 34 and 35. Each zone is composed of a plurality of information tracks for recording video information, and each of the information tracks is composed of a plurality of sectors.

FIG. 6 shows one sector. This sector has a user area 37 (first area and pre-pit area 36 (second area)).

Here, in the pre-pit area 36, position information such as zone number, track number, sector number, etc. and position control information such as information used for servo are recorded in advance at the time of manufacturing the magneto-optical disk 31, such as uneven pits. There is.
Further, the user area 37 can record both a digital signal and an analog signal including video information. At this time, information recorded as digital signals by various recording means is added with a code by error correction, modulated, and then sequentially recorded in the user area. On the other hand, information recorded as an analog signal is also sequentially recorded in the user area after frequency modulation. When the image information is recorded, the processing circuit and the like can be conventional ones if they have the same format as that recorded on the LD (laser disk). However, at this time, it is desirable to collectively record information of one or a plurality of scanning lines (horizontal lines forming the image surface) in the user area 37 of one sector.

Next, the operation of the present apparatus having the above configuration will be described with reference to the flow charts of FIGS.

7 and 8 are flow charts for explaining the procedure of recording and reproducing image information and audio information by this apparatus.

First, in FIG. 7, the user is the apparatus main body 1
Then, the magneto-optical memory 28 is attached and the operation is started (S1). Next, the operation contents as to whether to record or reproduce the information are input by the input device 15 (S2). The input contents in step S2 can be displayed and confirmed on the output device 16 (hereinafter, the input contents can be similarly displayed and confirmed on the output device 16). Next, the CPU 3 determines whether the input operation content is recording or reproduction (S3). Then, in the case of recording, the process proceeds to step S5, and in the case of reproducing, the process proceeds to a reproducing process of FIG. In FIG. 7, step S5 and subsequent steps are a flow chart for explaining the recording operation.

In the case of recording in step S3, the recording operation starts, but the recordable conditions vary depending on the capacity of the information recording medium and the data transfer speed. Therefore, the user first sets the recording condition of the voice information (S5). In other words, decide whether to record in stereo or monaural. At this time, in the case of monaural recording, if recording is performed with the same sound quality, it is possible to record twice as long time as stereo recording. Also decide whether to perform digital recording or analog recording. In the case of digital recording, there is no risk of data deterioration even if copying is performed multiple times, but the recordable time is shorter than in analog recording. The recordable time also changes by changing the sound quality. In the case of digital recording, it can be changed by the sampling frequency, the magnitude of quantization, and the compression ratio, while in the case of analog recording, it can be changed by the recording frequency band. For example, some combinations may be set in advance by the apparatus, such as capacity-saving recording, normal recording, and high-quality recording, and the user may select from among them.

Next, the user sets the recording condition of the image information as in the case of the voice information in step S5 (S).
6). In other words, the screen size is determined, whether digital recording or analog recording is performed, and the image quality is determined. The relationship of the recordable time is the same as that of the voice information. Also,
For example, full size, half size, HD size, capacity-saving recording, normal recording, high-definition recording, etc. are set in advance on the device side, and some combinations of screen size and image quality are set by the user. You may make it select. When both still image information and moving image information can be recorded as image information, recording conditions are set for each.

When the recording conditions have been set in steps S5 and S6, the process waits until a command for starting voice input is input (S7). When a user inputs a voice input start command from the input device 15, the CPU 3 starts capturing voice information according to the recording conditions and starts recording the voice information in the magneto-optical memory 28 (S8). At this time, the recording start time and date are recorded as time information in the search information file. This voice information is continuously taken in until a voice input end command is input, the capacity of the recording medium becomes less than a certain value, or the capacity of the power source becomes less than a certain value.

Next, it waits for a command to input image information of a still image or a moving image (S9). When the user gives an image input command, the image information starts to be taken according to the recording conditions.
The image file is recorded in the magneto-optical memory 28 (S1).
0). At this time, the time information such as the recording time and date for a still image and the time information for the recording start time and end time and date for a moving image are recorded in the search information file. During the recording of the image information, the semiconductor memory 18 serving as a buffer memory is used at this time for time-division recording, and the audio information is also continuously recorded. At this time, for example, a device-specific noise such as a shutter sound (an operation sound accompanying recording) is recorded in the internal memory 4 in the device body 1 in advance, and the device-specific noise is removed from the audio information. Good.

Whether there is an image input command in step S9,
Alternatively, when the image recording is completed in step S10, it waits for an instruction to end the voice input (S11). If there is no command, the process returns to step S8 to continue inputting voice information and image information. When there is a command to end the voice input in step S11, the CPU 3 finishes the voice input, records the time and date of the end of the voice input in the search information file (S12), and finishes the recording operation.

Here, in this series of operations, the magneto-optical memory 2
When the name of the video information recorded in 8 is A, an example of the contents of the search information file of the video information A is shown in FIG. In other words, the search information file is composed of time information and search information. In the example of FIG. 2, the recording of the voice information stored in the voice information file A from PM 5: 1: 0 on March 3, 1995 is performed. It started and finished at 6:15:05 PM, and 5:05:54 PM and 5:41 PM
At 25 minutes, the still image information files A-1 and A-2 were input respectively, and PM from 5:33:21 PM
It indicates that the moving image information file A-1 has been input until M5: 37: 10. This makes it easy to know at what point in the audio information the image information was input.

This search information file is stored in the magneto-optical memory 28.
It may be recorded as a digital signal on the upper side and may be recorded as a file independent of the image information and the sound information, or may be recorded together with the respective image information and the sound information. Also, the recording conditions set in steps S5 and S6 are recorded as digital signals in the respective image information and sound information as management information, and they can be reproduced independently. By recording as described above, image information and audio information can be recorded independently while being associated with each other by temporal information.

Next, the procedure for reproducing the video information recorded in this apparatus will be described with reference to FIG.

When the reproduction operation is selected in step S3, the user wonders whether the reproduction should be performed based on the voice information.
A reproduction method or a reproduction method is input based on image information (S13). Then, the CPU 3 judges the input content of the reproducing method (S14), and proceeds to step S18 described later in the case of the image basic, and the magneto-optical memory 28 in the case of the sound basic.
The audio information is searched for in the video information recorded in 1. and displayed on the output device 16. FIG. 3 shows an example thereof.
Here, the names of the audio files are displayed in the order of recorded date and time. The user selects a video information file to reproduce from this. For example, if the audio file A indicated by hatching is reproduced, the CPU 3 reads the contents of the search information file A corresponding to the audio file A, and reproduces the audio file and the image file according to the contents (S16). That is, in the case of video information A,
The audio information and the image information composed of a still image and a moving image are reproduced according to the passage of the time information as shown in FIG. That is, the audio information is continuously reproduced. The still image information is reproduced for a predetermined time such as 5 seconds or 10 seconds, or until the next image information is displayed. For movies, play them back exactly as they were recorded. When the reproduction is completed, it is decided whether or not other information is reproduced. If other information is reproduced here, the process returns to step S4 and the operation is repeated. Also, if you do not play other information,
This ends the process.

On the other hand, in the case of image basic in step S14, the user next sets the reproduction method of the audio information (S).
18). In other words, based on the image information, before, after, or before or after the predetermined fixed time is reproduced, from the selected image information to the image information that appears next,
Alternatively, it is set whether the audio information is played until the end. When the setting is completed, the CPU 3 retrieves the audio information from the video information recorded in the magneto-optical memory 28 and displays it on the output device 16, as in the case shown in FIG. The user selects a video information file to reproduce from this (S1
9). For example, assume that the audio file A indicated by hatching is selected. Next, a list of names of image information files in the selected video information is displayed on the output device 16. In this example, it becomes as shown in FIG. That is, the still image file A-1, the moving image file A-1, and the still image file A-2 shown above are displayed here in the order of the recorded time. The user selects an image information file to reproduce from this (S20). For example, assume that the moving image file A-1 indicated by hatching is selected. Video file A-
The search information file corresponding to No. 1 is read out and the moving image file A-1 is reproduced according to the contents and the reproduction method set in step S18 and displayed on the TV monitor 29 or the like (S2).
1). When the reproduction is completed, the process proceeds to step S17. If other information is reproduced here, the process returns to step S4 to repeat the operation. When other information is not reproduced, this ends the process.

By reproducing as described above, a desired image can be quickly retrieved from the recorded video information.

As described above, according to the present embodiment, in the present apparatus and its audio and image recording method, audio information is continuously recorded in real time, and image information of a plurality of still images or moving images is intermittently recorded. A plurality of pieces of image information are recorded at the same time as the audio information, and time information for clarifying when each of the individual pieces of image information was recorded and the search for linking the audio information and the image information By adding information to at least one of the audio information and the image information, it becomes possible to record the image information and the audio information independently while associating them with each other in terms of temporal information, and it is possible to record sufficient audio information. Becomes Furthermore, the time information and the search information can be recorded as independent files corresponding to the voice and image information when recording, and this also allows the image information and the voice information to be recorded independently while being associated with each other by temporal information. become able to.

Further, in the present apparatus and the method for reproducing the sound and the image thereof, some reproduction modes such as the sound basic and the image basic are provided, for example, specific image information is selected and reproduced, and the image information is reproduced. By simultaneously reproducing the audio information from the time point of the time information to the time point of the time information for the next recorded image information, a desired image can be quickly searched from the recorded video information. Become.

Further, by excluding the mechanical operation sound of the device generated during the recording operation from the video information (audio information), good audio information can be recorded without recording noise related to the operation of the device. It will be possible.

Further, according to the magneto-optical memory 28 as a video information recording medium for recording video information, each information track is composed of at least a plurality of sectors, and each sector includes at least a prepit area 36 and a user area 37. Since information is recorded in advance in the pre-pit area 36 by the concave and convex pits and both the digital signal and the analog signal are recorded in the user area 37, it becomes possible to select and record the digital signal and the analog signal in the same user area. , A lot of video information can be recorded.

[0052]

As described above, in the audio and image recording method and recording apparatus according to the present invention, audio information is continuously input and at least one of a plurality of still images and moving images is intermittently input. Since the audio information and the image information are input to the information recording medium by inputting the data, the image information and the audio information can be recorded independently, and sufficient audio information can be recorded.

Further, in the audio and image reproducing method and reproducing apparatus of the present invention, the audio information is reproduced from the information recording medium and continuously output, and at least one of the plurality of still images and moving images is reproduced as image information. Reproducing from the information recording body,
Since the audio signals are output intermittently, only the required images can be sequentially reproduced while continuously outputting the audio signal, and it becomes possible to obtain a new reproduction effect.

Furthermore, in the information recording medium of the present invention,
A first information recording track on which an image signal or an audio signal is recorded, wherein the information track is composed of a plurality of sectors, and the sector is capable of recording both a digital signal and an analog signal containing audio or image information; Area and the second area in which the position control information including the position information for the first area is recorded in advance. Therefore, it is possible to selectively record the digital signal and the analog signal in the same area. It is possible to provide a certain information recording medium.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a recording / reproducing apparatus that is an embodiment of the present invention.

FIG. 2 is a diagram illustrating a search information file used in the present invention.

FIG. 3 is a diagram illustrating a search screen in the case of reproducing based on voice.

FIG. 4 is a diagram illustrating a search screen when reproducing based on an image.

FIG. 5 is a diagram illustrating an information recording medium as an embodiment of the present invention.

FIG. 6 is a diagram illustrating an information recording medium as an embodiment of the present invention.

FIG. 7 is a flowchart illustrating an operation when recording audio and image information according to the present invention.

FIG. 8 is a flowchart illustrating an operation when reproducing audio and image information according to the present invention.

[Explanation of symbols]

 1 Main body of information processing device 5 Image input controller 10 Voice input controller 15 Input device 16 Output device 19 Magneto-optical memory unit 20 Monitor output circuit

Claims (17)

[Claims] 1. A method for continuously inputting audio information, intermittently inputting image information of at least one of a plurality of still images and moving images, and recording the audio and image information in an information recording body. Characteristic audio and image recording method. 2. The audio and image recording method according to claim 1, wherein the input audio and image information is recorded in the information recording body in a time division manner. 3. The time information indicating when the input image signal was recorded with respect to the recorded audio information is recorded in the information recording body together with the audio and image information. The method for recording audio and images according to claim 1 or 2. 4. The audio information and the image information are recorded in separate files, and search information indicating which audio file an image file relates to is recorded in the information recording medium together with the audio and image information. The method for recording audio and images according to claim 3, wherein 5. The voice and image according to claim 4, wherein the search information or the time information is recorded in the information recording body as a separate file prepared in association with the voice file and the image file. Recording method. 6. When recording the input image signal, the operation sound accompanying the recording is excluded from the audio information. Recording method. 7. The method according to claim 6, wherein the operation sound is stored in a memory in advance. 8. Playing audio information from an information recording medium and continuously outputting it, and reproducing at least one image information of a plurality of still images and moving images from the information recording medium and intermittently outputting it. And a method of reproducing audio and images. 9. The method for reproducing audio and image according to claim 8, wherein the audio and image information is recorded in the information recording body in a time division manner. 10. The time information indicating at what time the image signal was recorded with respect to the audio information is recorded in the information recording body together with the audio and image information. Sound and image playback method. 11. The method according to claim 10, wherein the image information is reproduced for a predetermined period at a timing according to the time information during reproduction of the audio information. 12. The audio information of a predetermined period determined according to the time information of the specific image signal is reproduced during selective reproduction of a specific one of the image information. Item 10. A method of reproducing audio and images according to item 10 or 11. 13. During selective reproduction of a specific one of the image information, from the time point of the time information for the specific image signal to the time point of the time information for the next recorded image information. The audio and image reproducing method according to claim 10 or 11, characterized in that audio information is reproduced. 14. A method for continuously inputting audio information, intermittently inputting image information of at least one of a plurality of still images and moving images, and recording the audio and image information in an information recording body. Characteristic audio and image recording device. 15. Audio information is reproduced from an information recording medium and continuously output, and image information of at least one of a plurality of still images and moving images is reproduced from the information recording medium and output intermittently. A sound and image reproducing device characterized by the above. 16. An information recording medium, which is applied to an image information recording or reproducing apparatus having a recording or reproducing function of audio and image, and which comprises a plurality of information tracks for recording the audio or image information, wherein the information track is The sector is composed of a plurality of sectors, in which a first area capable of recording both a digital signal and an analog signal including the audio or image information and position control information including position information for the first area are recorded in advance. An information recording medium having a second area. 17. When recording image information by the analog signal, information of one or a plurality of scanning lines forming the image information is collectively recorded in a first area of the same sector. The information recording medium according to claim 17, characterized in that: