JP2698354B2 - Recording device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus that records an image information signal and an audio information signal in at least a part of a plurality of recording areas provided on a recording medium. is there. 2. Description of the Related Art Conventionally known still video recording apparatuses are known which are configured to record and reproduce not only video but also audio for a certain period. When performing after-recording (recording) in which a corresponding video is recorded by a still video recording device on a video floppy video recorded by a still video camera, an unrecorded track of the video floppy is used or a recorded video track is recorded. Use after removing unnecessary tracks. Recording is performed based on the still video floppy standard established by the still video floppy party. [Problems to be Solved by the Invention] However, in the above conventional example, there is no unrecorded track or there is little or no unnecessary video track that can be erased, so that necessary audio recording (after-recording) cannot be performed. There were drawbacks. The present invention has been made in view of such a problem, and when an image information signal and an audio information signal are recorded in at least a part of a plurality of recording areas provided on a recording medium, an audio information signal is later recorded. Recording apparatus capable of identifying a recording area in which after-recording can be performed, and capable of satisfactorily after-recording a new audio information signal without requiring any special operation. The purpose is to do. [Means for Solving the Problems] The recording apparatus of the present invention is an apparatus that records an image information signal or an audio information signal in at least a part of a plurality of recording areas provided on a recording medium, When recording the image information signal on at least a part of a plurality of recording areas provided on a recording medium, any recording area other than the recording area on which the image information signal is recorded, the image information signal To set the audio information signal as a recording area where after-recording can be performed after recording,
An index signal such as a flag or a code indicating that an audio information signal can be after-recorded is recorded in at least a part of the recording area, and the image information is recorded in at least a part of the plurality of recording areas. When after-recording a new audio information signal on a recording medium on which a signal or the audio information signal is recorded, the new audio information signal is provided on the recording medium prior to the recording operation of the new audio information signal. A recording area in which the index signal is recorded is retrieved from a plurality of recording areas, and the new audio information signal is recorded in the retrieved recording area. [Operation] By performing the above, it is possible to secure a post-recording track of the audio information signal at the time of recording the image information signal and easily record a new audio information signal after recording the image information signal. become. FIG. 1 is a block diagram of a first embodiment of the present invention, and FIG. 2 is a flowchart thereof. Note that description of recording and reproduction of color signals is omitted for the sake of simplicity. The system controller 26 moves the head 20 to a certain track by the mechanical control 21. The signal reproduced by 20 is input to the de-emphasis circuits 10 and 22 and the ID detection circuit 23 via the switching switch 19, the preamplifier 8, and the FM demodulator 9. The output of 22 is input to a flag detection circuit 24, a control code detection circuit 25, and a switching switch 29. Reference numeral 24 denotes a circuit for detecting a flag indicating a use state of each sector of the voice track divided into four sectors. still,
Each sector is configured as shown in FIG. 4. The flag comprises a start flag at the head of the sector and an end flag at the end of the sector. The use of each sector is determined by the combination of the polarities of these two flags. The state is recorded. This is shown in FIG. If a flag is detected at the time of reproduction, it is possible to determine the video track and the audio track, and it is also possible to determine the use state of each sector. The description of the after-recording in the present invention will be described below. When a video floppy is inserted, 26 moves 20 by 21 to a certain track in response to the input switch 35. Reproduction is performed as described above, and the reproduction signal is input to 24. The flag detection signal output of 24 is input to 26, and 26 determines whether or not sector # 0 of the track being reproduced is type 4. If sector # 0 is not type 4, 26 is display means 36
Indicates that dubbing cannot be performed on this track. When sector # 0 is type 4, switch 6
Is switched to the erasing circuit 17 side, and the track is erased by 20 via the recording amplifiers 7 and 19. And
During or before or after this erasure, the audio signal stored in the memory 31 via the encoder 28, the switching switch 29, and the A / D converter 30 is read out from 31 in synchronization with the rotation of the floppy, A converter 32, switch 33, adder circuit 14, pre-emphasis circuit 13, switch 3, FM modulator 4, adder circuit 5
Then, the audio is recorded (post-recorded) on this track by 20, via 6, 7 and 19. Note that in 14, a flag and a control code are added. As described above, when the sector # 0 which is the first sector of a certain track has the type 4 flag, that is, when the use state of the first sector means "unused", this track is not a video track. "And" the audio signal is not recorded ". In the present invention, when a certain track is in such a state, means for judging that the track is a track used for post-recording is provided, thereby attempting to make effective use of this track. For example, when recording a video with a still video camera or a video floppy recorder, if a 4-sector type 4 flag is recorded in the next track after the video track, for example, the above-mentioned post-recording track is provided. It can be secured at the time of video recording. FIG. 6 schematically shows the relationship between the recorded flags and the video floppy. It should be noted that not only is it determined whether or not sector # 0 is a type 4 flag, but also that sector # 0, sector # 1, sector #
2. The determination may be made when all four sectors of sector # 3 are detected as type 4 flags.
If the sector # 0 is included, the determination may be made in any combination with the other. FIG. 3 is a flow chart according to a second embodiment of the present invention. This will be described below with reference to FIG. In the second embodiment, the determination made by the flag used for recording the audio signal in the first embodiment is determined using the user's area of the ID signal used for recording the video signal. As in the first embodiment, track movement and track reproduction are performed, and the output of the head 20 is input to the ID detection circuit 23 via 19, 8, and 9. 23 detects the ID code and outputs it to 26. 26
If there is a signal recorded in the user's area of the ID code in accordance with the prior agreement, erase and post-record are performed, and if there is no signal, it indicates that post-record cannot be performed. Similarly to the first embodiment, when recording a video with a still video camera or a video floppy recorder, a signal indicating that it is a post-recording track is provided, for example, in the next track after the video track, in the user's area of the ID code. If the recording is performed in accordance with the prior promise, it is possible to secure the above-mentioned post-recording track in advance when recording the video. Although the first embodiment and the second embodiment have been described in which after-recording tracks are discriminated and post-recording is performed, it is needless to say that only post-recording tracks are discriminated and erasing and recording are not performed. If a post-recording track is detected during video floppy reproduction, it is possible to prevent that track from being reproduced. Also, at the time of recording, if a post-recording track is detected, the next operation may be waited in a recording ready state (record standby). [Effects of the Invention] As described above, according to the present invention, when an image information signal or an audio information signal is recorded in at least a part of a plurality of recording areas provided on a recording medium, audio information is later recorded. A recording device capable of identifying a recording area in which a signal can be after-recorded and capable of satisfactorily after-recording a new audio information signal without requiring any special operation. Can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a flowchart of the first embodiment of the present invention, and FIG. 3 is a second embodiment of the present invention.
FIG. 4 is a schematic diagram showing a signal arrangement of a sector, FIG. 5 is a table showing a relationship between a use state of a sector and a flag, and FIG. 6 is a diagram for setting a post-recording track according to the present invention. FIG. 4 is a diagram schematically showing a relationship between recorded flags and video floppy. 23 ID detection circuit 24 Flag detection circuit 26 System controller

Claims (1)

(57) [Claims] An apparatus for recording an image information signal or an audio information signal on at least a part of a plurality of recording areas provided on a recording medium, and at least a part of the plurality of recording areas provided on the recording medium. When recording the image information signal, any recording area other than the recording area in which the image information signal is recorded, a recording area in which an audio information signal can be recorded after recording the image information signal When set as, an index signal such as a flag or a code indicating that the audio information signal can be after-recorded is recorded in at least a part of the recording area, and the A new audio information signal is recorded on a recording medium on which the image information signal and the audio information signal are recorded at least partially. Before performing the recording operation of the new audio information signal, the recording area in which the index signal is recorded is searched from among a plurality of recording areas provided on the recording medium, and the searched recording is performed. A recording device for recording the new audio information signal in an area.