JP2558948B2 - Recording and playback device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus having a reproduction state automatic setting function capable of recording a state desired to be reproduced and reproducing the state according to the recorded state.

2. Description of the Related Art In recent years, various audio broadcasts such as stereo broadcasts, audio multiplex broadcasts and BS broadcasts can be received in television broadcasts.

In a conventional video tape recorder (hereinafter abbreviated as VTR), all the sounds of such a program are recorded, and when reproducing, the sound changeover switch is operated to select a desired mode. .

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, when reproducing a tape on which a plurality of audio signals are recorded, it is necessary to operate the audio mode selector switch to set a desired mode, and a plurality of programs are recorded. The tape has a problem that the audio mode changeover switch has to be operated every time the program is changed during reproduction, which is very troublesome and troublesome.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a recording / reproducing apparatus having a reproduction state automatic setting function capable of recording a state to be reproduced and reproducing according to the recorded state. To do.

Means for Solving the Problems In order to achieve this object, a recording / reproducing apparatus of the present invention comprises:
Reproduction state recording means for recording data designating a reproduction state, data detection means for detecting the data recorded by the reproduction state recording means, and reproduction state setting for setting the reproduction state according to the output of the data detection means And means.

Operation The present invention having the above-described configuration allows the tape in which a program such as a stereo broadcast or a sound multiplex broadcast is recorded to be reproduced in a desired audio mode by recording the reproduction state at the time of recording.

Example Hereinafter, a first example of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the main part of a recording / reproducing apparatus according to the first embodiment of the present invention.

The video signal supplied from the TV tuner 11 includes a changeover switch 8, a video signal recording circuit 7, and a recording / reproducing head changeover switch 3.
Is sent to the recording / reproducing head 2 via the recording / reproducing head 2 and recorded on the magnetic tape 1 by the recording / reproducing head 2. At the start of recording, the reproduction data set by the reproduction data setting means 10 is transmitted to the recording / reproducing head 2 via the reproduction data transmitting means 9, the changeover switch 8, the video signal recording circuit 7, and the recording / reproducing changeover switch 3, 2 is recorded on the video track of the magnetic tape 1 shown in FIG. The changeover switch 8 performs a changeover operation according to a recording start signal input from the terminal 70.

On the other hand, the video signal detected by the recording / reproducing head 2 from the magnetic tape 1 during reproduction is sent to the RF converter 12 via the recording / reproducing changeover switch 3 and the video signal reproducing circuit 4. Further, the reproduction data is sent to the reproduction state setting means 6 via the recording / reproducing switch 3, the video signal reproducing circuit 4 and the reproduction data detecting circuit 5.

Now, in the apparatus shown in FIG. 1, the reproduction data recording means records the reproduction data on the video track on the magnetic tape 1 at the start of recording by the reproduction data setting means 10, the reproduction data sending means 9, the changeover switch 8 and the video signal recording circuit 7. The means 30 is constituted, and the reproduction data detection circuit 5 and the video signal reproduction circuit 4 constitute data detection means 20 for detecting reproduction data from the magnetic tape 1.

Regarding the recording / reproducing apparatus of this embodiment configured as described above, FIG. 1, FIG. 2 (a), FIG. 2 (b), FIG.
The operation will be described with reference to FIG. FIG. 2 (a) is a simplified diagram showing the arrangement of video tracks, audio tracks, and control tracks on the magnetic tape and the recording position of the reproduced data. FIG. 2 (b) is one video of the reproduced data recording section. FIG. 3 is a simplified diagram showing a data structure of a track, FIG. 3 is a flowchart showing processing contents in the reproduction data setting means 10, and similarly FIG. 4 shows processing contents in the reproduction state setting means 6. It is a flowchart.

By the way, the reproduction data setting means 10 and the reproduction state setting means 6 are constituted by software using a microprocessor.

First, the processing in the reproduction data setting means 10 will be described with reference to FIG.

Set the audio mode to be played at the start of recording by operating the switch.

In the processing block 100 of FIG. 3, the signal from the recording time mode switch and the signal from the audio mode switch are input. Next, the process proceeds to the branches 101 and 104, the mode is discriminated from the signals of the recording time mode and the audio mode, and the data corresponding to each mode is set in the processing blocks 102, 103 and the processing blocks 105, 106, 107. Finally, in processing block 108, reproduction data is set using the mode data set in processing blocks 102, 103, 105, 106 and 107. By executing the above-described processing, it is possible to set the recording time mode and the audio mode at the time of recording as the reproduction data.

Next, the processing of the reproduction data recording means 30 will be described. A recording start signal arrives from the terminal 70 in response to a recording start command, and the changeover switch 8 is set to the reproduction data sending side. At this time, the reproduction data setting means 10 sets the reproduction data, and the reproduction data sending means 9 sends the reproduction data to the video signal recording circuit 7 by the recording start signal. After transmitting the data, the changeover switch 8 is set to the TV tuner side. The reproduction data is recorded on the video track with the structure shown in FIG.

The above is the operation of recording the reproduction data at the start of recording.

On the other hand, the operation during reproduction will be described with reference to FIGS. 1 and 4.

The tape on which the reproduction data is recorded is reproduced by the video signal reproduction circuit 4
During reproduction, the reproduction data detection circuit 5 stores the reproduction data recorded on the track when the identification code of FIG. 2 (b) is detected. The stored reproduction data is immediately sent to the reproduction state setting means 6.

Next, the operation of the reproduction state setting means 6 will be described with reference to the flowchart of FIG. In the processing block 200, the data transmitted from the reproduction data detection circuit 5 is input, and the branches 201 and 205 discriminate the audio mode and the recording time mode from the input data. The discriminated mode is selected from one of the processing blocks 202, 203, 204 and the processing blocks 206, 207, and in the processing block 208, the reproduction state is set by outputting the selected data.
By performing such an operation, it is possible to automatically set the time mode at the time of recording and the audio mode to be reproduced, and perform the reproducing operation.

In the present embodiment, only two audio data and a recording time mode have been described as the reproduction data, but if there is a mode to be set at the time of recording, all the reproduction data can be captured.

Further, although the reproduction data is recorded on the video track of the magnetic tape in this embodiment, the same effect can be obtained by recording the reproduction data on the audio track or the control track.

As described above, according to the present embodiment, the reproduction data recording means
The voice mode and the recording time mode set at the time of recording are recorded on the magnetic tape 1 by 30 and the voice mode and the recording time mode at the time of recording by the reproduction state setting means 6 are set to operate the voice mode changeover switch. You can automatically play in the set mode without doing it.

Hereinafter, a second embodiment of the present invention will be described with reference to the drawings.

FIG. 5 is a block diagram of the main part of the recording / reproducing apparatus in the second embodiment of the present invention. In FIG. 5, the blocks designated by the same reference numerals as in FIG. 1 have exactly the same functions.

The video signal taken out by the TV tuner 11 is sent to the recording / reproducing head 2 via the selector switch 8, the video signal recording circuit 7 and the recording / reproducing head selector switch 3, and is recorded on the magnetic tape 1 by the recording / reproducing head 2. It At the start of recording, the reproduction data set by the reproduction data setting means 10 is transferred through the data transmission means 9, the changeover switch 8, the video signal recording circuit 7, and the recording / reproduction changeover switch 3 to the recording / reproducing head 2.
And is recorded on the video track of the magnetic tape 1 shown in FIG. The changeover switch 8 has a terminal 70
The switching operation is performed by the recording start signal input from the.

On the other hand, the video signal detected by the recording / reproducing head 2 from the magnetic tape 1 during reproduction is sent to the RF converter 12 via the recording / reproducing changeover switch 3 and the video signal reproducing circuit 4. The reproduction data and the position data are sent to the reproduction state setting means 6 and the fast-forward controller 14 via the recording / reproducing switch 3, the video signal reproducing circuit 4, and the reproduction data detecting circuit 5, respectively.

Further, the timer 42 starts the counting operation when the recording start signal arrives from the terminal 70 or when the output signal from the reproduction data detection circuit 5 arrives, and when the switch 41 is pushed, the count operation at that time is started. Transfer the data to the memory 43. Further, in the position data setting means 13, the memory
The count data stored in 43 is taken in as position data and recorded on the video track of the magnetic tape 1 shown in FIG.

Next, the fast-forward controller 14 uses the reproduction data detection circuit 5
In order to perform fast-forward based on the data sent from
A signal is sent to the T reel drive circuit 15.

Now, in the apparatus shown in FIG. 5, the reproduction data recording means, the data transmission means 9, the changeover switch 8 and the video signal recording circuit 7 are used to record the reproduction data on the video track on the magnetic tape 1 at the start of recording. The position data setting circuit 13, the data sending means 9, the changeover switch 8 and the video signal recording circuit 7 constitute the position data recording means 31 for recording the position data on the video track on the magnetic tape 1 at the start of recording. The reproduction data detection circuit 5 and the video signal reproduction circuit 4 constitute a data detection means 20 for detecting reproduction data from the magnetic tape 1, and the switch 41, the timer 42 and the memory 43 form the tape when the switch is pressed. A tape position recognizing means 40 for recognizing the position of is formed.

The operation of the recording / reproducing apparatus of the present embodiment configured as described above will be described below with reference to FIGS. 2 (a), 2 (c), 5 and 6.

2C is a simplified diagram showing the data structure of one video track of the position data recording section, and FIG. 6 is a block diagram of the fast-forward controller 14 shown in FIG.

When the recording is started, the reproduction data is recorded on the tape, and the operation when reproducing the tape,
This is exactly the same as the embodiment described above.

First, the operation when the switch 41 is pressed during recording will be described.

A recording start signal is input to the timer 42 from the terminal 70, and the timer 42 starts counting operation at a rate of 1 count per second by the signal input. When the switch 41 is pressed during recording, the count value of the timer 42 at that time is transferred to the memory 43. The memory 43 transfers the two pieces of count data to the position data setting means 13 when the two pieces of count data are input. That is, the memory 43 transfers the data to the position data setting means 13 when the switch 41 is pressed twice. When the data is transferred, the position data setting means 13 sends a rewind command when the operation mode of the recording / reproducing apparatus is changed to the stop mode. The time of the rewinding operation is indicated by a value obtained by adding 3 to the second data sent from the memory 43. The reason for adding 3 is to detect the position where the reproduction data is recorded in the reproduction operation after rewinding.

Now, after rewinding for the set time,
In order to detect the reproduction data, the reproduction is started in the reproduction mode. As soon as the reproduced data is detected by the reproduced data detecting circuit 5 during reproduction, the recording mode is set and the position data sent from the position data setting means 13 is recorded on the video track with the structure shown in FIG. 2 (c).

Thus, when the switch 41 is pressed during recording, the data of the tape position is stored, and when the recording mode is changed to the stop mode, the cueing operation is started and the reproduction data is recorded on the video track. The tape position data is recorded in the reproduction data recording section of FIG. 2 (a) from the next track.

In the above description, although not shown, the system control unit includes the reproduction state setting means 6 and the position data setting means 13
The signal sent from is input, the operation mode is set, and the operation is actually controlled.

The operation when the switch 41 is pressed during recording has been described above, but the same operation is performed when the switch 41 is pressed during reproduction. However, the operation start signal of the timer 42 is a signal output when the reproduced data is detected by the reproduced data detecting circuit 5. Although not shown in the drawing, the timer 42 is stopped and reset when the recording / reproducing mode is changed to the stop mode.

Next, the operation when reproducing the tape on which the tape position data is recorded will be described.

When reproduction data is detected during reproduction, the reproduction state setting means 6 sets the reproduction state. The operation has been described in the first embodiment.

The operation of the fast-forward controller 14 will be described below with reference to FIG. The signal terminals 144, 145, 147 and the data bus 146 in FIG. 6 are connected as shown in FIG. That is, the signals 144 and 145 and the data bus 146 are outputs from the reproduction data detection circuit 5, and the signal 147 is an output signal to the T reel drive circuit 15.

When the position data is detected, the two pieces of position data are the first data at the timing of the signal input from the terminal 145 via the data bus 146, the first data being the first latch 141 and the comparison circuit 1.
43, and the second data is transferred to the second latch 142.

Further, the timer 140 starts the counting operation by the signal output from the reproduction data detection circuit 5 through the terminal 144 at the timing when the signal is output from the data detection means 20 to the timer 42 through the OR circuit after the reproduction data is detected. To do. Therefore, it operates in synchronization with the timer 42 shown in FIG.

Next, the comparison circuit 143 starts the comparison operation between the count data and the first position data at the same time when the counting operation of the timer 140 is started. Then, when the count data and the first position data match, a match signal is output. This coincidence signal is sent to the T-reel drive circuit 15 to start the fast-forward operation, and at the same time, sent to the second latch 142, and the second position data stored in the second latch 142 is transferred to the data bus 146. To the comparison circuit.

Then, the comparison circuit 143 outputs a coincidence signal when the two pieces of data coincide with each other, as in the case where the first position data is transferred. When the second match signal is input, the T reel drive circuit 15 is set from the fast-forward mode to the reproduction mode. That is, the fast-forwarding operation is performed only in the section from the first tape position to the second tape position, and when the section ends, the reproducing operation is performed.

By the operation described above, only the section recognized by the tape position recognition means 40 of FIG. 5 can be automatically fast-forwarded during reproduction. That is, when reproducing again, by designating a portion that does not need to be viewed by the switch, that portion can be skipped and reproduced.

Although the reproduction data is recorded on the video track of the magnetic tape in this embodiment, the same effect can be obtained by recording the reproduction data on the audio track or the control track.

As described above, according to this embodiment, the reproduction state recording means 30
The audio mode and the recording time mode to be reproduced are recorded on the magnetic tape 1 by the, and the audio mode and the recording time mode to be reproduced are set by the reproduction state setting means 6 so that the audio mode changeover switch is automatically operated. Can be played back in any desired mode.

Further, the position data recording means 31 records the position data of any two points on the magnetic tape in the reproduction data recording part of FIG. 2 (a), and the two data recorded by the data detecting means 20 and the fast-forward controller 14 during reproduction are recorded. By executing the fast-forward operation only in the section of the position data of, it is possible to automatically skip and reproduce a portion of the recorded program that does not need to be reproduced.

As is apparent from the above description, the recording / reproducing apparatus having the reproduction state automatic setting function according to the first embodiment of the present invention has the reproduction state recording means 30 for recording the reproduction state and the reproduction data at the time of reproduction. Is provided with a data detecting means 20 for detecting a reproduction state and a reproduction state setting means 6 for setting a reproduction state in accordance with the output of the data detecting means 20, and a reproduction state such as a voice mode or a recording time mode to be reproduced is recorded on a tape. By setting it, you can automatically set that mode and play it,
Its practical effect is great.

Further, the recording / reproducing apparatus having the reproduction state automatic setting function in the second embodiment has a tape position recognizing means 40 for recognizing a specific position on the magnetic tape and a tape position recognizing means 40.
The position data recording means 31 for recording the position data recognized by the data, the data detecting means 20 for detecting the reproduction data and the position data of the tape at the time of reproduction, and the tape fast-forwarding according to the position data detected by the data detecting means 20. A fast-forward controller 14 is provided, and a portion of the tape which is being recorded or has not been recorded need not be designated, and the two tape position data are recorded at the beginning of the recorded program so that the portion can be reproduced. It can be skipped and reproduced, and its practical effect is extremely large.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a recording / reproducing apparatus in a first embodiment of the present invention, FIG. 2 (a) is a simplified diagram showing a recording format on a magnetic tape of the same embodiment, and FIG. FIG. 2B is a simplified diagram showing the data structure of one video track of the reproduction data recording unit of the same embodiment, and FIG. 2C is a simplified diagram showing the data structure of one video track of the position data recording unit of the same embodiment. FIG. 3 is a flow chart showing the processing contents by the reproduction data setting means of the first embodiment, FIG. 4 is a flow chart showing the processing contents of the reproduction state setting means of the same embodiment, and FIG. FIG. 6 is a block diagram showing the configuration of the recording / reproducing apparatus in the second embodiment of the present invention, and FIG. 6 is a block diagram showing the configuration of the fast-forward controller 14 in the same embodiment. 6 ... Reproduction state setting means, 20 ... Data detecting means, 30 ...
... Playback status recording means, 40 ... Tape position recognition means.

Claims (1)

(57) [Claims] 1. A reproduction state recording means for recording data designating a reproduction state, a tape position recognition means for recognizing a specific position on a magnetic tape, and position data recognized by the tape position recognition means. Position data recording means, data detection means for detecting data indicating a reproduction state and tape position data, a fast-forward controller for fast-forwarding the tape according to the position data detected by the data detection means, and the data detection means A recording / reproducing apparatus comprising a reproduction state setting means for setting a reproduction state according to an output.