JP2728879B2 - Playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a plurality of audio signals and image signals different from each other.
From the media recorded in the area of
The present invention relates to a reproducing apparatus for reproducing a signal and an image signal.
You. [Prior art] Recorded on video floppypie by electronic still video round-table conference
Standardized image, sound, and data formats to be recorded
Was done. Standardized by this electronic still video roundtable
In the format, one continuous sound and this
The corresponding image is mixed at different positions on the medium
It is defined so that it may be recorded. Therefore, an audio signal as shown in such a format
And image signals are recorded in different areas
As a device for reproducing from a medium, an audio signal is temporarily stored in the device.
And store it in an audible sound.
Then, an image corresponding to the audio signal is searched for from the medium.
2. Description of the Related Art There is known an apparatus for displaying on a monitor. [Problems to be Solved by the Invention] However, in such an apparatus as described above, the reproducing head is not actuated.
Information corresponding to the audio sequence is recorded in the area being accessed.
If not recorded, ie, compose one audio sequence
Out of the area where the audio signal or video signal
If the playback head is accessing an area outside,
Move the playback head once to play the sequence
And the information that makes up the audio sequence is recorded
You need to find the area and then give instructions to start playback
There is a problem that operation becomes very troublesome
Was. Such a problem is caused by various playbacks other than the above-mentioned still video.
This is a problem that also occurs in the apparatus. The present invention has solved such a problem and improved operability.
It is an object to provide a playback device. [Means for Solving the Problems] The playback device of the present invention provides an audio signal and an image signal
Is the media recorded mixedly in different areas
Device for reproducing the audio signal and the image signal from the
By accessing each area of the medium, the audio signal
Playback means for playing back a signal or an image signal, and an apparatus body
The recording state of each area of the medium loaded in the
Determination storage means for storing a determination result of
The medium based on the determination result stored in the determination storage means;
Corresponds to image signals recorded in another area of the body
Start playback of the area of the medium where the audio signal is recorded.
Pointer to manually indicate with a single switch operation
Step and responsive to a single switch operation on the indicating means
Out of the area of the medium where the audio signal is recorded
Search for the area where the beginning of the audio signal is recorded
And a single switch in the instruction means.
Image recorded in another area of the medium by touch operation
The medium on which the audio signal corresponding to the image signal is recorded.
When an instruction to start reproducing the body is given,
The first area of the medium that is currently being accessed is the
Whether or not the head of the audio signal is in the recorded area
The discrimination result stored in the discrimination storage means
And the first area of the medium is
The head of the issue was detected as the recorded area
In such a case, it is necessary to keep the access state of the reproduction means.
Controlling the search operation in the search means,
The first area records the head of the audio signal.
If it is detected that the area is not the area,
Of the audio signal based on the discrimination result stored in
In the second area of the medium where the head portion is recorded,
In the search means so as to make the recording / playback means accessible.
And control means for controlling the search operation. [Operation] With the above-described configuration, the information is recorded in another area of the medium.
The audio signal corresponding to the image signal is recorded.
When media playback is instructed,
The head of the audio signal is recorded in the area of the medium
Whether or not the area is
Detected based on the determination result of the recording state of the area, and
The area of the medium being accessed is
If it is detected that the area is a recorded area,
Area of the media that maintains the access status and is currently being accessed
Is not the area where the head of the audio signal is recorded
Is detected, the previously stored medium
Based on the determination result of the recording state of each area,
The area of the medium where the head is recorded is automatically and instantaneously
At times you will be able to access. [Embodiment] FIG. 4 is a block diagram of an embodiment of the present invention.
Ki disk 2 is for rotating the magnetic disk 1 at a constant speed.
DC motor, 3 moves the magnetic head, 4 moves the magnetic head 3
And a head moving mechanism 4 for moving the head.
A head drive motor for driving, 6 is a head drive motor
Motor driver for driving the motor 5;
Head 3 accesses the innermost track on the magnetic disk
The innermost track detection SW that turns on when the
PG coil for generating one pulse signal per rotation
PG pulse generator including a motor 9 drives the DC motor 2
DC motor driver, 10 is output from PG pulse generator
Force signal is input to rotate the magnetic disk at a constant speed
The servo circuit for controlling the DC motor driver 9
A reproduction antenna for amplifying the output signal from the magnetic head 3
12 is an FM demodulation circuit to which the signal from the reproduction amplifier is input.
13 is a video signal to which the signal from the FM demodulation circuit 12 is input
Processing circuit, which is connected to the video mute circuit 14
You. The video mute circuit 14 is a system controller to be described later.
The circuit whose mute operation is controlled by the
Thus, the output to the motor 15 is limited. 16 is
A / D conversion circuit to which the output of the FM demodulation circuit is input.
The clock signal is input to the conversion circuit from the oscillation circuit 26.
ing. 17 is a memory, output from the A / D conversion circuit 16
Is input, and the signal from the address generation circuit 24 is input.
Controls the address of the memory. This
Memory expands the time-base compressed audio signal over time.
It has a function. D / A conversion circuit 18 is memory 1
7 for digital-to-analog conversion of the output signal from
Circuit, whose output is the noise reduction of the audio signal.
Are connected to an audio signal processing circuit 19 that performs such processing.
The output of the audio signal processing circuit 19 is connected to the audio mute circuit 20
This audio mute circuit is used in the system described later.
Circuit block mute controlled by controller 28
This output is connected to the speaker 21. twenty two
Is input with the output signal from the FM demodulation circuit 12, and
Information signal to which the signal from the timing generation circuit 25 is input
Demodulation circuit, which is recorded in the audio signal recording track
Demodulate the control information signal for reproducing the audio
Things. This demodulated data signal is transmitted to a system described later.
Connected to the controller 28 and restored to the timing generation circuit
Part of the key data has been entered. 23 is the FM modulation circuit 12
This is a reproduction signal discrimination circuit to which the output signal is input.
A separate circuit determines whether the signal is a playback signal, video, or something else.
Is input to the system controller 28. 24 is
A method for controlling the memory 17 for reading and writing audio
Molly controller, which reads memory 17
Write control and memory address control
This is a block that includes a circuit to perform. 25 is timing
This is a raw circuit, and the PG pulse and information from the PG pulse oscillator
The output signal from the signal demodulation circuit is input and the information signal is demodulated.
Timing signal to circuit 22 and memory controller 24
Is output. 26 is an A / D conversion circuit 6 and a memory
-Generates a signal that serves as the reference clock for controller 17
Oscillation circuit 27 is D / A conversion circuit 18 and memory controller
Oscillator circuit that generates a signal that serves as the reference clock for
is there. 28 is a system control that controls the entire system.
Controller, 29 is a program that controls the system controller.
ROM storing the program, 30 is the system controller 28
RAM that is read and written by SW1 of magnetic head 3
UpSW and SW2 for instructing movement to the inner track are magnetic.
Do to instruct the movement of the head 3 to the outer track
wnSW. SW3 is used to set the audio playback mode
This is the sound playback mode ON / OFF switch. SW4 is to advance the audio sequence to play next
Search UP switch, SW5 displays the audio sequence to be played.
At the beginning of the current sequence or at the previous sequence
It is a search down switch to return. SW6 is voice
Start switch to instruct raw start, SW7 plays audio
Is a stop switch for instructing to stop. SW8 is flow
Either play the entire tune or play one sequence.
1 sequence mode setting switch to switch between
You. 31 consists of a phototransistor and a light emitting diode
Is a magnetic disk detection mechanism, and a phototransistor
Whether there is a magnetic disk between the light emitting diode and
This output is used for detection, and is output to the system controller 28.
It is connected. 32 receives the output signal from the playback amplifier 11.
This is the envelope detection circuit that is
The empty track or the recorded track
Information signal is connected to the system controller 28.
You. Next, the operation of the embodiment will be described. First, the magnetic disk
The number of tracks formed in a magnetic disk is 50,
The track formed on the outermost periphery of the disc is the first track.
And the innermost circumference is 50 tracks. Also magnetic disk
The track where the magnetic head moves to the inner circumference of the track is uP,
The location that moves to the outer circumference is track down. Next, the audio recording format will be briefly described.
You. In this format, audio signals and image signals
Recording position is not specified, and both are mixed at random
Will be. This example is shown in FIG.
You. FIG. 5 (a) shows a track formed on a magnetic disk.
1 shows one of the audio tracks recorded in the track. Sound
The track is divided into four sectors, one track.
Each, S ₁ , S _Two , S _Three , S _Four It is shown. Fig. 5
(B) shows an example of the sector format. One cell
The start flag is provided at the start position,
The start signal of the
The time axis compression ratio of the audio signal and the corresponding audio signal
Video signal track address and audio signal track
When recording continuously for
Track address and the next audio signal are recorded
The track address etc. is a control for audio signal track reproduction.
Is recorded as a rule code. In the description of the present embodiment, the audio sequence
And a series of audio signals recorded in the
Refers to the image signal, and the signal corresponding to the audio sequence
This means that the signal constitutes the audio sequence. Next, the operation of the embodiment configured as described above
This will be described using the flowchart of the controller 28. No.
Figures 1 to 3 show such a flow chart.
is there. First, a track information table used at the time of reproduction will be described with reference to FIG.
The creation of a bull will be described. Magnetic disk 2 (below
It is also called deo roppy. ) Is attached to the device, RA
Area for storing M30 track information and the sequence described later
The counter is cleared (S101).
The first track of the video trophy is accessed
(S102). If the accessed track is a video track
Frame type, field type, audio
If the track is a track, the start track number of the sequence
Information of each track such as video track number
Imports information reproduced by the information signal demodulation circuit
(S103) The table in RAM 30 corresponding to each information
The reproduced data is stored in the file (S104). And now a
The track number that is being accessed is checked (S105).
Repeat the above operation for all tracks of Roppy
(S103 to S105, S106). Track information of the video floppy currently installed
When the report table is created, the track information table
The track to be reproduced first, for example, a video
Information recorded on the outermost track of off-ro
Whether it is a sequence (ie an audio signal or an audio signal
Image does not support audio signals)
Is determined (S107), and if it is a voice sequence,
If this is the first track of the audio sequence containing the track,
Move the head 3 to the track, play the track, and
17 (S108), and then correspond to this audio signal.
Head 3 to the track where the image signal is recorded
Then, the image signal is reproduced and displayed on the monitor 15 (S10
9). Also, the information recorded on the track to be played first is
If the image signal does not correspond to the audio signal,
Only the image signal is displayed, and the mute circuit 20 is controlled to output audio.
Mute (S110). Star in S111 in this state
Either switch SW6 or search up / down switch SW4,5
Wait for that switch to turn on. In S111
When the start switch SW6 is pressed, the reproduction routine S112
If search up / donwSW is pressed, search routine S11
The flow branches to 3. Next, first, regarding the reproduction routine S112, FIG.
This will be described with reference to FIG. In the playback routine, first
The image displayed on the monitor 15 corresponds to the audio sequence.
It is determined whether or not the image is a current image (S201). Also
If it supports the audio sequence,
Audio data is already stored in the audio memory 17
So, drive the memory controller 24 and store it in the memory 17
The read audio data is read out, and the sound is
Voice output is started (S204). Also supports audio sequences
If not, the next audio sequence to play, for example
Recorded on the outermost track of the floppy
Of the audio signals or floppy video signals, the corresponding
Audio signal is recorded on the outermost track.
The recorded video signal and its start track number are stored in RAM30.
This is checked using the track information table created in
The audio data is stored in the memory 17 from the rack (S202).
The image corresponding to the sound of the sound is displayed on the monitor 15 (S203).
To start reading from the memory 17
The mute is released and the output of the sound is started (S204). sound
After starting voice output, SW4, SW5 and SW7 are turned on in S205.
If not, continue until the end of this audio sequence.
Store voice data in memory 17 (S208)
An image is displayed (S209). If you stop at S205
When it is detected that the switch SW7 is turned on, S230 to S223 are performed.
The flow branches to stop the audio output (S223) and play
Is completed, and the flow returns to S111 in FIG. Also search up / d
When it is detected that own switch SW4,5 is turned on,
The output of the voice is stopped (S223), and a search routine to be described later is performed.
(S225) and restart the audio output (S20
Four). During playback of one audio sequence,
The audio data of the last track of the audio tracks that make up the track
When the loading of the data into the memory 17 is completed,
The flow branches to S210 and is currently stored in the memory 17.
Wait until the reading of the audio data is completed (S210),
Next, set the sequence count so that the audio sequence can be played.
The counter is incremented (S211). Next, video
A track in which audio and video signals are paired on a rope.
It is determined whether or not all the reproductions have been completed (S212).
If finished, return to the first place to play and wait
(S212,219-221,222). Note that S220 and S221 are S202 and S
This is the same step as 203, and S222 is video floppy
Step to move the head to the uppermost outermost image track
It is. It is determined that the process has not been completed in S212.
Of information to be reproduced next, that is, information that has already been reproduced.
On the inner side of the track being recorded,
Audio sequence or audio sequence recorded on the outer
To play any of the images that do not support sequence
First, determine whether a voice sequence exists
(S213). The next information to be reproduced in S213 is the audio
If it is detected that the case is a
S214, S215, and S216 corresponding to 203 are executed. Also, S213
Information to be reproduced next is not an audio sequence.
Is detected, the same steps as in S110 described above are performed.
Is executed. In S213, the next information to be reproduced
When it is detected, the audio information of the sequence
Information of the first track on which information is recorded.
The head 3 is moved so that the information is reproduced, and the audio data
Is loaded into the memory 17 (S215), and then S216 is executed.
The corresponding image information is displayed on the monitor 15. This allows for the next audio sequence to be played.
This is very useful because the
It is good. Next, in S217, it is determined whether the mode is the one sequence mode,
That is, the entire audio sequence on the video floppy is reproduced.
Mode or play one audio sequence
1 sequence mode to stop playback after
If it is determined that the mode is the one-sequence mode, FIG.
Proceeding to B in (a), the process branches to S111 in FIG. Therefore, when 1 sequence mode is set
Has a sequence of audio signals and corresponding to the audio signals.
After the video signal is reproduced, the audio reproduction temporarily stops.
If the one-sequence mode is not set,
The flow branches to S204 shown in FIG.
The stored audio signal is read by the memory controller 24.
Output from the speaker 21 and the
The flow is executed and all audio streams on the video floppy
When the sequence is played, the flow moves from S212 to S219
The operation branches and the operation as described above is performed. In this embodiment, the audio sequence on the video floppy is
After playing all, the outermost track on the floppy
Recorded image signal or recorded on the outermost track
Audio signal at the beginning of the audio sequence
An image signal corresponding to the recorded track is displayed on the monitor 15.
Reproduced as a visible image. Therefore, by observing the image signal, another reproduction is performed.
Turn on the start switch SW6
Just play all audio sequences on floppy
You. When the start switch SW6 is turned on, the head 3
Information recorded on the track being accessed
If the voice sequence is not supported, the above-mentioned S202, S203
Automatically finds nearby audio sequences
And this will be played. Next, in S111 shown in FIG.
In search routine S113 executed when switch is turned on
This will be described with reference to FIG. In such routines
Search up switch SW4 and search down switch SW5 are on
It is determined whether or not it has been performed (S301). If search up is instructed here, at that time
You are in an audio sequence, that is, playing audio information
It is determined whether or not the audio sequence is in progress (S302), and the voice sequence is determined.
, That is, during playback of audio information, the next sequence
Increments the sequence counter to go to (S30
3) Yes. Also, in S302, the visual
The information being generated is an image signal that does not correspond to the audio signal.
If so, the sequence counter is the next audio to play
Since the sequence is shown, S303 is not executed. And
The reproduction of the sequence to be reproduced next is prepared (S306 to S30).
8). Steps S306 to S308 are the same as steps S214 to S216.
is there. If the search instruction is down, S301
Flow branches to S304, and the current is in the middle of the audio sequence.
Check if you are in the middle, if not in the middle, that is, at that time
The information being played back at the beginning track of the audio sequence
Image signal or audio sequence corresponding to the recorded audio signal
If the image signal does not correspond to the
Decrement the sequence counter to play the source
(S305), if you are on the way,
To play the sequence again from the beginning,
Prepare the audio sequence for playback without changing the counter.
(S306 to 308). Here, the search switches SW4 and SW5 are started from S111 in FIG.
When the flowchart shown in Fig. 3 is executed by turning on
Indicates that only an image is displayed on the monitor 15,
The playback is in the stop state, and this search route
The audio sequence is ready to play.
Wait in the state of being left. That is, the audio memory 17 should be played next.
Image data corresponding to the stored audio data
Is displayed. On the other hand, the file shown in FIG.
Search SW, SW4, SW5 turned on in low S205
If is detected, the server with sound output
The voice output once in S224.
To subroutine for search shown in FIG. 3 (S225)
Is executed, but the subroutine for this search is executed.
When the line is ready to play the audio sequence,
Since the process branches to S204, the audio output is started immediately. I
Therefore, when the search routine is executed,
Playing or sounding the information that makes up the sequence
When playing back an image signal that does not correspond to the sequence
Regardless, we always go to the beginning of a certain audio sequence. Next, FIG. 7 shows a modification of the search routine shown in FIG.
FIG. In the search routine described below, the flowchart shown in FIG.
Unlike when the search down switch is turned on,
Is a sequence, whether or not audio is playing
Since the counter is decremented, the speaker 21
Regardless of the sound being played from the
It is controlled to search the head of the audio sequence. Or
Such a search routine will be described with reference to FIG. When search switches SW4 and SW5 are pressed, this search
And the search was up or down
Is determined (S401), the sequence counter is reset.
It decrements (S402). This allows sequence
The counter counts the sequence one before the current sequence.
Will show. Then, by this sequence number,
Refer to the table to find the first track number from the table.
Search (S405), move head 3 to the track, and
The data is reproduced, and the audio data is stored in the memory 17.
(S406), the corresponding image is displayed (S407). By configuring the flow as described above, search down
When switch SW5 is turned on, audio is being reproduced from speaker 21
Search for previous audio sequence, with or without
Is controlled. In the flow chart described above, FIG.
One sequence mode is selected as described in (b)
One audio sequence has been played
Later, if there is the next audio sequence, the next audio sequence
The image information corresponding to the audio at the beginning of the
Be born. Therefore, the user responds to the next audio sequence
Image information can be visually recognized in advance. Next, after playing one audio sequence, the sequence
Image information corresponding to the last audio signal of the
Use without discomfort by continuing to play back
8 (a),
This will be described with reference to FIG. In FIG. 8, S211 in FIG. 2 (a) and FIG.
Enter each step from S21 to S225 shown in (b) as shown
Has been replaced. Further, steps S201 to S2 in FIG.
04 is deformed as shown in FIG. The operation will be described below. In the embodiment shown in FIG. 8B, after S210
Executes S213 to S215, and determines whether or not the next audio sequence 2 exists.
Detect (S213), and if yes, execute S214 and S215
Audio data in the memory 17 once,
It is determined whether or not the cans mode is set (S21
7) If not in 1-sequence mode, sequence
Increments the counter (S211), 1 sequence
If it is the mode, go to the step indicated by B in FIG.
Then, the process returns to S111. Sequence counter in S211
After incrementing the sequence counter,
It is determined from the value whether all the sequences have been completed (S21).
2) If all sequences have not been completed,
Information corresponding to the audio data imported to memory 17
Move the head to the track where
In step 15, the image information is visually reproduced (S216). All sequence
If the process has been completed, execute S219 to S221 and execute the same
Perform the operation. For this reason, the steps up to the start of sound reproduction in FIG.
Changes slightly. That is, the currently displayed screen changes to the next sound to be reproduced.
Check if the image is compatible (S251) and if the previous sound
When you are displaying the final image of a voice sequence,
Displaying the image (S203) starts output of audio
(S204). In the embodiment described above, S217 is executed after S215.
One sequence mode, one sound
When a voice sequence is played, playback of the audio signal ends.
After that, the image information corresponding to the last sound is displayed on the monitor 15.
Will be displayed. Therefore, it may not give the user a sense of discomfort.
The image information recorded on the medium is satisfactorily reproduced. Next, by executing S103, S104, and S105, the
The audio track number input from the server will be described. here
In the description, the video is basically recorded on the outer side of the video floppy.
Are assigned higher priority, and S108, S
The table to be read in 202, S208, S214 etc. is as follows
Corresponding to the respective reproduction modes are prepared. Voice sequence priority mode (first mode)
Play from things. Video track priority audio sequence playback mode (second
Mode) the corresponding video in the first track of each audio sequence
Playback starts from the outer track side of the track position. FIGS. 6A to 6C show the first mode and the second mode.
A specific description will be given using (c). FIG. 6 (a) shows the signals recorded on each track.
Whether it is an image signal or an audio signal, if it is a video signal
Which track audio signal is supported and audio signal
Figure showing which audio sequence corresponds to
It is. In the column marked A / V in FIG.
If the signal recorded in the box is a video signal,
V, lowercase alphabet is shown for audio signals
ing. The lowercase alphabet starts with “a”.
"B", "c" followed by the same audio sequence
A variety of alphabets are attached. Alfave
The numbers attached to the notes indicate the playback order in the audio sequence.
It is a number. In the column shown as audio sequence
The track on which the video signal is recorded corresponds to which audio signal
And it is shown as sequence 1.
The column indicates the video track corresponding to the audio track indicated as “a”.
If it is rack, attach the same code as the code shown in the A / V stage.
ing. Therefore, to give an example, two tracks have video signals
Recorded and its video signal is "b ₁ Sound indicated as "
Voice track, i.e. recorded on track 13 according to this figure
This is a video signal corresponding to the extracted audio signal. As shown in FIG. 6 (a), each track is
S1 described above for playing recorded video floppy
FIG. 6 (b) shows a table referred to in 08 and others. Fig. 6
The head 11 has access to the track number stage of (b).
The power tracks should be in order from left to right according to each of the above modes.
has been written. FIG. 6 (c) shows each of FIG. 6 (b).
When playing back while referring to the table, the video signal is
The order in which the heads move for playback is shown. An example
For example, in the first mode, the eleventh
The track is regenerated. Such tracks are recorded by audio signals.
Since the track is recorded, the head is track 11.
After playing back the sound and writing the sound to the memory 17, the 11th
The video track corresponding to the track, that is, the fourth track is reproduced.
The audio that was then written to the audio memory 17 is read out.
And is played back simultaneously with the video of the fourth track.
Head 11 moves to twelfth
The track is moved to the track, and the sound of the track is reproduced.
Video corresponding to the audio signal of the twelfth track.
The head moves to the seventh track where the image signal is recorded
However, the same operation as described above is performed, and continues as shown in the figure below.
Good. In the case of the second mode, there are a plurality of audio sequences.
The video corresponding to the first track of each
Video on the outermost track of each track where
Are played first from the sequence associated with. Fig. 6
Explaining according to (a), the sounds indicated as “a” and “b”
The video corresponding to the first track of the voice sequence is recorded.
The tracks being tracked are the fourth track and the second track, respectively.
You. Therefore, in the case of the second mode, the voice indicated as "a"
The sequence plays in sequence, followed by the audio indicated as "b"
The sequence will be played in order. In the first and second modes, audio signals are not supported
The video signal is skipped without being reproduced. Therefore, during playback, the video is always on the monitor and the audio is
It is very easy to use because it is played back from the speaker at the same time
Good for Next, the video signals skipped in the first and second modes are sequentially output.
The mode in which playback can be performed will be described. First, in the third mode, in addition to the operation of the first mode,
Furthermore, the sound corresponding to moving the head from the outer side
The track with no signal is played back first, and then the first mode is played.
This is the mode for executing the code. An example of such a mode will be described. First, in this case, there is no corresponding audio signal from the outer side
The video signal, that is, the first track and the third track are reproduced.
You. Here, the second track is the second track in the first mode.
Skips because it corresponds to the audio sequence to be played.
Is done. Next, the video signal recorded in the fourth track is
Each track belonging to a series of audio sequences containing
When the audio sequence is completed, the second track
A series of audio sequences containing video signals
You. The third mode is executed as described above.
However, the fourth mode is a mode corresponding to the second mode
The description is omitted because it is the same. That is, in the fourth mode, the beginning of each audio sequence
The track number of the video signal corresponding to the head track,
Is compared with the number of the track that has no audio signal.
Playback starts from the youngest number. In the third mode and the fourth mode, as shown in FIG.
Timing (the STOP mark ""))
The head movement is automatically prohibited and the search up switch is
SW4, search down switch SW5 or start switch
This state is maintained until SW6 is operated.
Mode, 6th mode is 3rd mode, 4th mode
In other words does not prohibit head movement
Automatically at the set interval time.
In this mode, the access position of the node is updated. Also, in the first and second modes, """shown in FIG.
Automatically prohibits head movement when marked
This is performed by one sequence switch SW8.
Sequence mode is set. As described above, according to this embodiment, each track information
Search in advance, manage and execute in a predetermined mode
Audio and video signals are mixed
Good reproduction of the whole, even on the medium to be recorded
Can be done. In this embodiment, a disk-shaped recording medium is used.
Although the embodiment has been described, the medium is not limited to this.
Alternatively, it may be tape-shaped or card-shaped.
In some cases, a solid-state memory such as a semiconductor memory may be used.
No. Also, in this embodiment, a start switch is provided, and the track information text is displayed.
Cable allows the playback head to access
Area contains the information that makes up the audio sequence.
From any position inside or outside the area
Only by turning on the switch, audio output becomes possible.
There is no need to search for audio sequences as before. According to the present embodiment, one sequence mode is set.
Multiple audio sequences recorded on the media, depending on whether
Play only one of the cans or all sounds
Determines whether the voice sequence is played automatically in a predetermined order.
It can be replaced and is extremely convenient. Also, in the one-sequence mode, once the audio
The image that is played on the monitor when playback has stopped
By reproducing the image corresponding to the reproduced audio signal
Thus, an easy-to-use reproducing apparatus can be provided. Also, in the one-sequence mode, once the audio
When playback is stopped, the next
Image that corresponds to the first sound in the audio sequence.
Thus, a playback device that is easier to use can be provided. Further, according to the present embodiment, the search up / down switch SW
4, By providing SW5, multiple voice sequences,
When images that do not support audio are mixed on the medium
Easily find the beginning of the required audio sequence
It became possible to play. [Effects of the Invention] As described above, according to the playback device of the present invention,
The audio signal and the image signal are recorded in different areas
When reproducing an audio signal from a recorded medium, the user
Can instantly play audio signals with simple operations.
This has the effect of improving the operability.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1, FIG. 2 (a), (b), FIG. 3 are flow charts showing the operation of the apparatus of one embodiment of the present invention, and FIG. 4 is one embodiment of the present invention. FIGS. 5 (a) and 5 (b) are diagrams showing a recording format in the apparatus of the embodiment, and FIGS. 6 (a), (b) and (c) are for explaining a reproducing procedure. FIG. 7 is a flowchart showing a modification of FIG. 3, and FIGS. 8 (a) and (b) are flowcharts showing a modification of FIG. 2 (b). 1 ... magnetic disk 19 ... audio signal processing circuit 28 ... system controller SW1 ... UPSW SW2 ... DOWN SW SW4 ... search up SW SW5 ... search down SW SW6 ... start SW

Claims (1)

(57) [Claims] An apparatus that reproduces the audio signal and the image signal from a medium in which an audio signal and an image signal are mixedly recorded in a plurality of areas different from each other. Reproduction means for reproducing a signal or an image signal; discrimination storage means for discriminating a recording state of each area of a medium loaded in the apparatus main body and storing the discrimination result; The reproduction start of the area of the medium in which the audio signal corresponding to the image signal recorded in another area of the medium is manually started by a single switch operation based on the determination result stored in the means. An instruction means for instructing the recording means, and a head portion of the audio signal in an area of the medium in which the audio signal is recorded in response to a single switch operation in the instruction means. Search means for searching for an area to be read, and reproduction of the medium on which an audio signal corresponding to an image signal recorded in another area of the medium by a single switch operation of the instruction means is recorded. When the start instruction is given, the discrimination storage means determines whether or not the first area of the medium currently accessed by the reproduction means is the area where the head of the audio signal is recorded. If the first area of the medium is detected based on the stored determination result and the first area of the audio signal is detected as the area where the head portion of the audio signal is recorded, the access state of the reproducing unit is held. The search operation of the search means is controlled so that the first area of the medium is not the area where the head of the audio signal is recorded. Control means for controlling a search operation in the search means so as to make the reproduction means access to a second area of the medium in which a head portion of the audio signal is recorded based on the stored determination result. A playback device, comprising: 2. 2. The reproducing apparatus according to claim 1, wherein the audio signal is composed of a plurality of audio information signals each having a continuous relationship with each other.