JPH0335455A - Digital audio tape recorder - Google Patents

Abstract

PURPOSE:To easily retrieve a position desired to be recorded with a skip ID and hence to record it in its accurate position by operating an absolute address retrieval key and reproducing consequently information in parts at stored absolute addresses in turn. CONSTITUTION:An absolute address storage circuit 11 is provided for storing the absolute addresses A1 and A2 of a magnetic tape based on an output of an operating part 1 by operating its absolute address recording key in order to record the skip IDs IK1 and IK2 when the information is recorded or reproduced. Then, when the absolute address retrieval key of an operating part 1 is operated under the state of loading a cassette half into a mechanism part 2, the mechanism part 2 is controlled by a control part 12 to reproduce the information in turn before each prescribed time of the absolute addresses A1-A3 of a magnetic tape stored in an absolute address storage circuit 11. By this method, the parts desired to be recorded with the skip IDs IK1 and IK2 can be retrieved in turn, and the skip IDs IK1 and IK2 can be recorded in their accurate positions by operating a skip ID recording key of the operating part 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention provides a method for skipping and listening to information that you do not want to hear.
This invention relates to a digital audio tape recorder (hereinafter referred to as a DAT recorder) that can record a skip ID at the beginning of the first piece of information on a magnetic tape.

[Conventional technology]

In a conventional DAT recorder, a magnetic tape housed in a cassette half loaded in the mechanical section is run based on the output of the operation section, and information, such as music from a radio, is recorded (recorded) on the magnetic tape. After the recording level of music information, etc. continues to be below a predetermined level for a certain period of time, when the recording level reaches a predetermined level or higher, a start mark D indicating the beginning of music, etc. is recorded on the magnetic tape.

In such an AT recorder, by comparing the recording level of information with a predetermined level, a start ID indicating the beginning of information to be recorded can be automatically recorded on the magnetic tape.

Therefore, by using the start ID as the information number, the specified information can be reproduced in sequence.

However, some of the same information includes commercials, narrations, and other information that you want to skip, so in order to skip such information, press the skip ID recording key on the operation panel during recording or playback. It is configured such that the skip ID can be recorded on the magnetic tape by operation.

[Problem to be Solved by the Invention] Since the conventional DAT recorder is configured as described above, the skip ID is recorded on the magnetic tape by operating the skip ID recording key on the operation unit during recording or playback. be able to.

However, when recording a skip ID during recording, the skip ID recording key on the operation panel is operated after determining that the information is what you want to skip, so it is not possible to record the skip ID where you really want it to be skipped. There was an inconvenience.

If the Skinobu ID is recorded during playback, the user must search for the information he or she wants to skip during playback and record the skip ID each time, making the operation complicated.

This invention was made in order to eliminate the inconveniences mentioned above, and provides a DAT recorder that can easily search for a position where a skip ID is to be recorded and can also record a skip ID at an accurate position. be.

[Means for Solving the Problems] The DAT recorder according to the present invention records the current magnetic field based on the output of operating the absolute address recording key of the operation unit to record the skip ID when recording or reproducing information. An absolute address memory circuit that stores the absolute address of the tape, and when the absolute address search key on the operation unit is operated with a cassette half loaded in the mechanical unit, at least the magnetic tape stored in the absolute address memory circuit The device is provided with a control unit that controls the mechanical unit to sequentially reproduce information from a predetermined time before the absolute address.

[For production]

The control section of the DAT recorder in this invention stores the absolute address of the magnetic tape at that time, based on the output of operating the absolute address recording key of the operation section to record the skip ID when recording or reproducing information. When the absolute address search key on the operation unit is operated with the absolute address memory circuit and the cassette half loaded in the mechanical unit, at least a predetermined time before the absolute address of the magnetic tape stored in the absolute address memory circuit. The mechanical section is controlled to sequentially reproduce information from

Therefore, it is possible to sequentially search for a portion in which a skip ID is to be recorded, and to record the skip ID by operating the skip ID recording key on the operation section.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a block diagram showing the configuration of a DAT recorder according to an embodiment of the present invention.

In FIG. 1, 1 indicates the operating section, and each ■! ■Multiple keys are provided to specify operations.

2 indicates a mechanical part that runs or stops the magnetic tape contained in the loaded cassette half, and records music information etc. on the magnetic tape when the magnetic tape is running in recording mode or playback mode. A magnetic head 2a is provided for recording, reproducing recorded music information, and erasing music information.

3 is an input terminal to which music information to be recorded is supplied, and 4 is an analog-to-digital converter (A) that converts the music information (analog signal) from input terminal 3 into a digital signal.
/D converter), 5 indicates a first signal processing circuit, and this first signal processing circuit 5 performs processing to record the output of the A/D converter 4, and adds various information. It also processes.

Reference numeral 6 indicates a recording amplifier that amplifies the output of the first signal processing circuit 5, and 7 indicates a switch circuit.This switch circuit 7 is controlled by a control unit 12, which will be described later, to direct the output of the recording amplifier 6 to the magnetic head 2a during recording. is switched to supply
During reproduction, the signal read from the magnetic head 2a is switched to be supplied to the reproduction amplifier 8.

Reference numeral 9 denotes a second signal processing circuit, which processes the output of the reproduction amplifier 8 and outputs a reproduction signal (music information, etc.), absolute address, table of contents information, error rate, etc. The reproduction signal will be described later. The absolute address is output to the digital-to-analog converter 10, the absolute address is output to the absolute address storage circuit 11 (described later), and the table of contents information, error rate, etc. are output to the control unit 12.

Note that the absolute address (absolute time) is recorded on the magnetic tape, and the table of contents information is recorded at the beginning of the magnetic tape.

Reference numeral 10 denotes a digital-to-analog converter (D/A converter), which converts the digital signal output from the second signal processing circuit 9 into an analog signal and outputs an audio signal.

Reference numeral 11 denotes an absolute address storage circuit, which stores the absolute address output by the second signal processing circuit 9 at that time, based on the output of the operation unit 1 when the absolute address recording key is operated.

Reference numeral 12 indicates a control unit, which outputs the operation unit 1, the mechanical unit 2 and the second signal processing circuit 9, a comparison signal that compares the recording level of music information etc. from the input terminal 3 with a predetermined level, and an absolute address memory. Based on the absolute address stored in the circuit 11, the mechanical section 2. First signal processing circuit5. It controls the switch circuit 7 and the second signal processing circuit 9.

FIGS. 2(a) to 2(C) are explanatory diagrams for explaining the operation.

In FIG. 2, ■s+ to I34 are star) IDs.

■□, ■, 2 are skip IDs, A+, At are absolute addresses, and these absolute addresses A, , A2 are stored in the absolute address storage circuit 11 based on the output of the operation unit 1 when the absolute address recording key is operated. This is the absolute address that was memorized.

Next, the operation will be explained.

First, when the recording key of the operating section l is operated with a cassette half loaded in the mechanical section 2, the control section 12 sets the mechanical section 2 in the recording mode and runs the magnetic tape, and also controls the switch circuit 7 to control the magnetic head. 2a recording amplifier 6
Connect to.

In this state, the control unit 12 compares the recording level of music information etc. supplied to the input terminal 3 with a predetermined level,
If the recording level remains below a predetermined level for a certain period of time, for example, 3 seconds or more, a signal for recording the start ID is output to the first signal processing circuit 5.

On the other hand, since the first signal processing circuit 5 processes and outputs the supplied signal, the digital signal output from the first signal processing circuit 5 is amplified by the recording amplifier 6 and then sent via the switch circuit 7. and is supplied to the magnetic head 2a.

Therefore, the music information etc. supplied to the input terminal 3 is
As shown in Figure 2 (a), the start IDI is placed at the beginning of the
, , ~ID, , are recorded.

When recording music information etc. in this way, as shown in Figure 2 (
As shown in a), star)rD[! 1g and start I
There was a commercial in the DI room, and the star) IDJsz
If there is a narration between and start IDl5a, it is determined that it is a commercial or narration, and later
When the absolute address storage key of the operating section 1 is operated each time to record the amplifier ID, the control section 12 causes the absolute address storage circuit 11 to store the absolute addresses A r and A 2 at that time.

Then, when the absolute address search key of the operation section 1 is operated after all the recording of music information etc. is completed, the control section 12 determines whether the absolute address storage circuit 11 stores an absolute address, and the absolute address storage circuit 11 does not store the absolute address, the control ends.

However, if the absolute address storage circuit 11 stores the absolute addresses A, , A, as shown in FIG. When the top of the tape is detected, as shown in FIG. 2(b), after retrieving the first absolute address A1 stored in the absolute address storage circuit 11, an amount corresponding to a predetermined period of time, for example 10 seconds, is stored. The mechanical section 2 is set to a reproduction mode in which the magnetic tape is rewound and music information, etc., is reproduced for 20 seconds before and after the absolute address A.

At this time, the absolute address 10 seconds before the absolute address A1 may be directly searched based on the absolute address A.

In this playback state, when the user operates the skip ID recording key on the operation unit 1 while accurately determining the position where the music news ends, the control unit 12 controls the mechanical unit 2 as shown in FIG. 2(C). and record the skip IDIK.

By sequentially performing such control on the absolute address A2 stored in the absolute address storage circuit 11, the result shown in FIG.
As shown in C), the skip IDfxz can be recorded.

Then, when the control for reproducing the portion of the absolute address stored in the absolute address storage circuit 11 is completed, the absolute address storage circuit 11 is reset.

Therefore, during playback, as shown in FIG. 2(C),
You can skip the music information you need and the information you want.

In the above-described embodiment, an example has been described in which the absolute address storage key of the operation unit 1 is operated during recording to store an absolute address in the absolute address storage circuit 11, but it may also be performed during reproduction.

Further, although the explanation has been given using an example in which the control unit 12 stores an absolute address in the absolute address storage circuit 11, the absolute address storage circuit 11 has a configuration in which the absolute address is stored in response to the output of the operation unit l that operates the temporary address storage key. You can also use it as

Furthermore, although we have explained the example in which the emergency address is recorded on the magnetic tape, if the absolute address is not recorded on the magnetic tape, the value of the real-time counter provided in the mechanical section 2 can be used as the absolute address. good.

[Effects of the Invention] As described above, according to the present invention, the absolute address of the magnetic tape is stored in the absolute address storage circuit in order to record the skip ID by operating the absolute address recording key of the operation unit during recording or reproduction. After storing the skip ID, by operating the absolute address search key on the operation unit, the information of the absolute address part stored in the absolute address storage circuit is sequentially reproduced, so it is easy to find the position where you want to record the skip ID. In addition to being able to search for
This has the advantage that the skip ID can be recorded at an accurate position.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a digital audio tape recorder according to an embodiment of the present invention, and FIGS. 2(a) to 2(C) are explanatory diagrams for explaining the operation. DESCRIPTION OF SYMBOLS 1... Operation part, 2... Mechanical part, 2a... Magnetic head, 3... Input terminal, 4... Analog-digital converter, 5... First signal processing circuit, 6 ... Recording amplifier, 7... Switch circuit, 8... Playback amplifier, 9
. . . second signal processing circuit, 10 . . . digital/analog converter, 11 . . . absolute address storage circuit, 12 .
・Special '42+1 copy, Is+~134...Start ID
, IKI, IK2...Skip ID. A,,A,... Absolute address.

Claims (1)

[Scope of Claims] A magnetic tape stored in a cassette half loaded in a mechanical section is run based on the output of an operating section, and by operating a skip ID recording key of the operating section, the magnetic tape is skipped. Skip ID to the beginning of the information you want to hear
In a digital audio tape recorder capable of recording, when recording or reproducing the information, the information of the magnetic tape at that time is determined based on the output of operating the absolute address recording key of the operation unit to record the skip ID. an absolute address memory circuit that stores an absolute address; and when an absolute address search key of the operating unit is operated with the cassette half loaded in the mechanical unit, at least the absolute address memory circuit stores the absolute address. A digital audio tape recorder comprising: a control unit that controls the mechanical unit to sequentially reproduce the information from a predetermined time before the absolute address of the magnetic tape.