JPH0727682B2 - Recording device - Google Patents

Description

The present invention relates to a recording device capable of recording a video signal and an audio signal.

[Prior Art] Conventionally, a VTR has been known as a recording device capable of recording a video signal and an audio signal, but in recent years, a unified standard of a still video system capable of recording a still image signal and an audio signal in video floppy has been newly established. Announced and product development in progress.

In the above unified standard, as a method of recording still images and audio signals in video floppy, one field of still image for one track of video floppy, 320,640,12
It is possible to record an audio signal that is 80 times time-axis compressed for 5, 10, 20 seconds.

Further, the audio signal can be continuously recorded over a plurality of tracks, and can be moved to the next track at any time within the maximum time that can be recorded in one track. .

Further, since the correspondence between the audio signal and the still image is such that one still image is assigned to one audio track, when the image is switched at an arbitrary time, the track for recording the audio signal is moved at the desired timing. It can be carried out.

[Problems to be Solved by the Invention] However, in the case of actually recording a voice, the voice to be continuously reproduced at the time of reproduction is not always continuous at the time of recording.

For example, when you want to add different voices and explanations corresponding to each frame, or when you want to record chopped voices such as in interview, the conventional method is to record the voices in advance. Must be edited and recorded on an audio tape or the like to be a continuous signal, and then recorded on the floppy disk. In addition, the sequence ends when separated by the REC STOP switch, so there is a problem in that when the recorded floppy is reproduced, it cannot be continuously reproduced.

The first object of the present invention is to solve such a problem.

[Means for Solving the Problems] In order to solve the above problems, the present invention provides a pause instruction means in a recording device for continuously recording voice over a plurality of tracks. End the recording to the currently accessed track, and change the recording access track to a different track from the currently accessed track in response to the pause state canceling instruction of the means, and re-record the voice. The recording is started.

[Operation] In the above structure, recording of the currently recorded track is completed by the pause instruction by the pause instruction means, and recording is resumed on a different track from the track in response to the pause release instruction of the means. Be started.

[Embodiment] In the embodiment to be described below, a recording apparatus that performs audio recording based on the still video floppy standard is described, but it goes without saying that the present invention is not limited to such an apparatus. .

In the apparatus of this embodiment, when recording an audio signal on a concentric track formed on a video floppy disk, the track is divided into four sectors,
Signals called a start flag and an end flag are added to each of the sectors. The polarities of these two flags indicate whether the voice recorded in the sector is the voice following another sector of the same track or another track, or the voice of the end of the sequence. ing.

FIG. 1 shows a flow chart of a control system of a recording apparatus which is an embodiment of the present invention. FIG. 3 is a block diagram showing the structure of the device.

In FIG. 3, 1 is a microphone for inputting voice, 2
Is an amplifier that amplifies the sound input by the microphone 1,
Reference numeral 3 is an A / D converter for A / D converting it, and 4 is a memory for applying time axis compression, and reading and writing are controlled by the system control 14. It should be noted that the time base compression is performed by changing the writing and reading speeds to and from the memory 4. 5 is a D / A converter for D / A converting it again, 6 is a circuit for FM modulation, 7 is a recording amplifier, 8 is a side of the video flow when recording a signal to the video floppy 9 by the magnetic head 11. This is a switch that is switched to the b side when reproducing from the tune 9. Also,
10 is a motor for rotating the video floppy 9, 12
Is a preamplifier for amplifying the reproduced signal, 13 is a circuit for detecting an empty track depending on the presence or absence of the reproduced signal, and 15 is a display device.

Next, the flow of one embodiment of the present invention will be described with reference to FIG.

When voice recording is started, first the presence or absence of an empty track is checked (S101), and if there is no empty track, the fact is displayed on the display device 15 (S117), and the recording operation is not accepted. When there is an empty track, when the REC START switch in the various operation keys 16 is turned on (S102), the audio signal is started to be written in the memory 4 (S103). When an audio signal for one track is accumulated in the memory 4, the contents of the memory 4 are compressed in the empty track at the time compression rate (320,640,1280) preset by the system control 14, and are FM-modulated and recorded. (S106). Then, the presence / absence of a free track is checked (S107), and if there is, a voice recording is continued. If not, the flag of the last recorded track is changed to one indicating the end of the sequence and re-recorded (S116),
The fact that there are no empty tracks is displayed on the display device 15 (S117).

When PAUSE SW is pressed during the audio signal accumulation period and the pause mode is turned on, the acquisition of the audio signal to the memory 4 is stopped (S109), and the audio signal accumulated in the memory 4 up to that point is vacantly tracked. To record (S110).
Here, when the STOP SW is pressed, the flag is changed to one indicating the end of the sequence and re-recording is performed (S115), and the recording operation is finished. When a switch for turning off the pause mode is pressed instead of the STOP SW, the presence or absence of an empty track is checked (S112, S107), and if there is, the acquisition of the audio signal to the audio memory is restarted (S113).

The above operation is repeated until STOP SW is pressed or there are no empty tracks.

Next, a second embodiment showing a flow chart of another embodiment of the present invention.
The figure will be described.

When voice recording is started, first the presence or absence of an empty track is checked (S201), and if there is no empty track, the fact is displayed on the display device 15 (S210), and the recording operation is not accepted. If there is an empty track, RECSTA in the various operation keys 16
When the RT switch is turned on (S202), the audio signal is started to be written in the memory 4 (S203). Before the voice recording is started, it is judged whether or not the time set in the system control 14 in advance, that is, the voice signal memory storage amount has been accumulated (S205), and if so, the voice signal is taken into the memory 4. At the same time as stopping (S206), the accumulated audio signal is recorded in an empty track on the recording medium at a preset time compression rate (S207). Then, it is checked whether or not there is an empty truck (S201), and the player enters the pause state.
By pressing the REC START switch during the pause, the acquisition of the audio signal to the memory 4 is restarted. The above operation is repeated, and the recording operation is continued until the REC STOP switch is pressed or there is no empty track on the recordable recording medium.

Here, the recording after restart from the paused state is continued to the audio signal before the pause, and it is recorded in a different track from the track before restart.Handling of pause switch and stop switch is the first step. This is similar to the case of FIG. In addition, in order to automatically set the pause state, the preset time before recording can be set not only for the time required for one track of the recording medium but also for the time required for a plurality of tracks. Also, it is possible to set such that each time a pose is entered, the next pose is entered at a different time.

Further, in order to effectively use the recording track, it is also possible to perform the recording at the time when the audio signal for one track is accumulated, without performing the recording operation to the empty track even when the pause state is entered.

That is, even if the pause state is entered, the idle state is not immediately recorded, the stand-by state is simply waited, the pause state is released, and the recordable voice signal for one track is stored in the memory 4. In response to this, recording on the floppy disk 9 may be performed for the first time.

It should be noted that in the above-described first embodiment, a pause switch is used as the pause instruction means, and in the second embodiment,
Although the step for determining whether or not the memory storage amount has been stored is used as the pause instruction means as shown in S205, another timer circuit may be used to detect the memory storage.

Further, in the first embodiment, as a pause release instruction of the pause instruction means, a further operation of the pause switch in the paused state is performed, and in the second embodiment, REC START provided in various operation keys 16 is provided. Although a switch is used, a dedicated switch for releasing the paused state may be used.

In the present embodiment, when a pause instruction is given, the voice stored in the memory until then is recorded in the track that the head 11 is accessing, and the next empty track (for example, a track adjacent to the recorded track) is recorded. Since recording is performed on the track on the circumference side or the track on the outer circumference side, it is possible to write a voice signal to the memory 4 from the beginning again after the pause switch is operated and released, and a sufficient voice recording time can be secured.
Easy to use.

Although the disk-shaped recording medium is used in this embodiment, the present invention can be applied to the case where the helical track is formed by using the tape-shaped recording medium.

As described above, by performing track recording at the time of entering the pause during recording, even if the power is suddenly turned off, the audio signal up to the time of entering the pause is already automatically recorded at the timing of entering the pause. It is possible to continue editing again later.

In addition, various operation keys 16 are provided with an operation member to set the pause time freely, so that various sounds such as discontinuous sounds can be recorded and edited, and reproduced as continuous sounds. It becomes possible to do it.

[Effects of the Invention] As described above, according to the present invention, the audio signal is started to be recorded again in a different track from the track being accessed in response to the pause cancellation. Play.

[Brief description of drawings]

1 and 2 are flow charts of an embodiment of the present invention, and FIG. 3 is a block diagram showing the construction of an apparatus of an embodiment of the present invention. 1 …… Microphone 2 …… Amplifier 3 …… A / D converter 4 …… Memory 5 …… D / A converter 6 …… FM modulation circuit 7 …… Recording amplifier 8 …… Switching switch 9 …… Video floppy 10… … Motor 11 …… Head 12 …… Preamplifier 13 …… Free track detection circuit 14 …… System control 15 …… Display 16 …… Various operation keys 17 …… Head moving mechanism

Claims (5)

[Claims] 1. A recording device for continuously recording voice over a plurality of tracks, wherein pause instruction means is provided.
By the pause instruction by the pause instruction means, the recording to the track currently being accessed for access is completed, and the recording access track is changed to a different track from the track being accessed in response to the pause state release instruction of the means. The recording device is characterized by restarting the recording of the sound. 2. A track indicating that the voice signal is a signal following the next track is added to the track in which the voice signal is recorded in accordance with the pause instruction of the pause instruction means. Recording apparatus according to claim 1. 3. The signal according to claim 1, wherein the signal indicating that the audio signal is a subsequent signal is a signal represented by a combination of a start flag and an end flag added to the audio signal. The recording apparatus according to item 2. 4. The pause instructing means is means for timing the time from the start of voice recording, and means for automatically issuing a pause state instruction in response to the predetermined time being timed by the timing means. The recording apparatus according to claim 1, wherein 5. The recording apparatus according to claim 4, wherein the predetermined time is a recordable time that can be recorded in the one track.