KR0139196B1 - Recording method for tape end address data in tape recorder - Google Patents

Abstract

The present invention relates to a recording method of recording end addresses of a tape recorder which detects the silent portions present at both ends of the tape and records the recording end address in the correct position, thereby preventing the recording and reproduction in unnecessary portions. Has a silent detection unit 10 to check the leader tape area during recording or playback, and if it is determined to be the leader tape area, quickly drives the tape to the magnetic tape area, and checks whether or not the recording ends in the magnetic tape area to end recording. The address of the position is rewound and recorded on the beginning of the magnetic tape.

Description

How to record the recording end address of the tape recorder

1 is a block diagram of a conventional tape recorder.

2 is a tape state diagram showing a conventional signal recording and driving state.

3 is a block diagram of recording data on a general tape.

4 is a block diagram of a tape recorder to which the present invention is applied.

5 is a control flowchart showing a recording end address recording method of the present invention.

* Description of the symbols for the main parts of the drawings *

2: recording end detection unit 5: tape

9: Running control unit 10: Silent part detecting unit

55: transparent tape 56: magnetic tape

The present invention relates to a recording method of recording end addresses of a tape recorder which detects a silent portion on a transparent tape present on the tape and records the recording end address in the correct position to prevent recording and reproduction in unnecessary portions.

In the conventional tape recorder, as shown in FIG. 1, an address generator 1 for generating an address indicating a position on the tape 5 of a recorded audio signal, and a recording end detector 2 for generating a signal at the end of recording And a first memory (3) for storing a position address at the time when a signal is generated from the recording end detection unit (2) as a recording end address, and the address generator (1) and the first memory (3). A recording unit 4 for recording the recorded address at the corresponding position of the tape 5, a reproducing unit 6 for reproducing the address recorded on the tape 5, and a second memory 7 for storing the reproduced recording end address. ) Is compared to the output signal of the comparator 8 and the comparator 8 for generating a signal at a point of time that matches the address output from the playback unit 6 and the recording end address of the second memory 7. Traveling agent to control the running of the tape accordingly It consisted portion 9.

Thus, when the tape record is operated in the recording mode, as shown in FIG. 2, as the tape 5 travels in the A direction, an address indicating the tape position is output from the address generator 1 to the recording unit 4, The recording section 4 records the address 52 at a tape position corresponding to the recording signal 51.

When the tape 5 travels to the recording end position 53 by the traveling control unit 9, the recording end detection unit 2 outputs a signal, so that the recording end address is stored in the first memory 3, and the traveling control unit ( 9) the tape 5 is driven in the B direction, and when the tape is rewound up to a portion where the recording signal 51 is absent, the recording end address stored in the first memory 3 is changed to a predetermined position (on the tape 5). 54), and the tape stops running.

Since the address of the recording end position is recorded at the beginning of the tape as described above, the conventional tape recorder has the advantage that the recording end position can be easily changed and the high speed detection of the unrecorded portion is possible.

However, according to the conventional tape recorder, a recording end address may be recorded in a non-recording part on a transparent tape which exists for a certain time at the beginning and the end of the tape.

That is, a general tape is divided into a magnetic tape 56 capable of recording to a magnetic region and a transparent tape 55 that cannot be recorded to a nonmagnetic region, as shown in FIG. Recognition occurs at the beginning of the tape, making it impossible to record and reproduce the recording end address.

Therefore, since the end position of the recording is unknown, it takes a long time to detect the unrecorded part, and there is a problem in that it is necessary to record or play back to an unnecessary part.

The present invention has been devised to solve the above-described problems, and provided with a silent detecting means, when the silent part is detected during recording or playback, the tape is automatically transferred to the magnetic tape area, and the area-cooled recording end address is changed. In order to prevent the recording and reproduction of unnecessary portions by recording, the embodiments of the present invention will be described in detail with reference to FIGS. 4 and 5.

4 is a block diagram of a tape recorder to which the present invention is applied, and as shown therein, an address generator 1 for generating an address indicating a position on a tape of a recorded audio signal, and a signal for generating a signal at the end of recording. A recording end detection unit 2, a first memory 3 for storing a position address at the time when a signal is generated from the recording end detection unit 2 as a recording end address, and the address generator 1 and the first memory; A recording unit 4 for recording the address output from (3) at a corresponding position on the tape 5, a reproducing unit 6 for reproducing the address recorded on the tape 5, a reproduced recording end address and a second; The configuration of the comparator 8 which compares the recording end addresses of the memory 7 and generates a signal at a coincidence time point, and the run controller 9 which controls the running of the tape according to the output signal of the comparator 8 Conventional Circuit It is the same with configurations.

A feature of the present invention is a silent detector 10 which detects silent portions on a transparent tape which exist at a beginning and end of a tape for a predetermined interval, and according to the output signal of the silent detector 10 and the comparison section 8, The driving control unit 9 controls the operations of the recording unit 4 and the reproduction unit 6 to skip the silent unit during recording and playback.

The operation and effect of the present invention configured as described above will be described based on the flowchart of FIG.

When the tape record is operated in the recording mode and it is determined that the transparent tape area is checked, the silent part detecting unit 10 generates a silent part detecting signal, and the traveling control unit 9 receives the signal to detect the tape. Drive in SF (search forward) mode.

If it is determined as the end of the tape and the final driving position is the end, the driving direction of the tape is reversed and the above-described operation is repeated. If the tape is not the transparent tape area, the magnetic tape area is checked by checking whether it is the magnetic tape area. In one case, the high speed detection SF is stopped and the tape is driven at a normal speed. The address generator 1 outputs an address indicating the tape position, and the recording unit 4 records the address and the recording signal together on the tape. Done.

The recording end address is stored in the first memory 3 because the signal is output from the recording end detection unit 2 when the recording end is continually checked during the recording operation and the recording is terminated. Fast reverse to SR (search reverse).

When it is determined whether the magnetic tape is at the beginning of the magnetic tape and the tape is rewound up to the beginning of the magnetic tape, the recording end address stored in the first memory 3 is recorded on the tape while the tape is running forward, and the tape is stopped running.

As described above, the present invention detects a silent portion during recording or playback, and rapidly travels the section on the tape, so that the recording end address can be recorded in the recordable area so that the recording and playback can be performed without distortion for a predetermined time. There is an effect that can prevent recording and playback.

Claims (1)

It is provided with a silent portion detecting unit 10 for detecting a silent portion on the transparent tape existing at both ends of the tape for a predetermined period, When recording or playback starts, it checks whether it is a transparent tape area which is silent and quickly drives to the transparent tape area. Checking whether or not recording is to end during recording operation in the magnetic tape area, and storing a recording end address generated at the end; A recording method of recording end address of a tape recorder, characterized in that it is controlled by rewinding the tape to the beginning of the magnetic tape, recording the recording end address, and then stopping driving.