JP2000285551A - Rotary head type video tape recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily extend the consecutive time of a video recording pose by the user. SOLUTION: In this video tape recorder, the video recording pose is released (ST32, 35, 36) when the consecutive time of the pose becomes 2 min and 50 sec near 3 min which is the maximum consecutive time at the time of video recording pose, and the video recording pose is reopened (ST38, 40, 30) after a lapse of 10 sec, then this process is repeated till the pose release operation is made (ST33, 39) by the user's depressing of a pose key 19a. Consequently, such an operation by the user as the video recording pose is released a little before the maximum consecutive time of the video recording pose and made again to the video recording pose after that, like the conventional practice, is unrequired, then the consecutive time of the video recording pose is easily extended by the necessary amount.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a rotary head type video tape recorder having a recording pause function.
In detail, when the continuous time of the recording pause becomes a predetermined time close to the maximum continuous time, the recording pause is released, and the recording pause is restarted after a predetermined time, by repeating until the recording pause is released by a user operation, The present invention relates to a rotary head type video tape recorder that allows a user to easily and continuously extend a recording pause time as needed.

[0002]

2. Description of the Related Art Some conventional video tape recorders have a recording pause function. This pause function
When a certain program is being recorded, it is used to prevent recording of a commercial or other item that the user does not want to record for a short time. In the recording pause state, the running of the magnetic tape is stopped.

[0003]

By the way, in the rotary head type video tape recorder, in the recording pause state, the running of the magnetic tape is stopped, but the rotation of the drum is not stopped, and the magnetic head is driven by the magnetic head. The same position on the tape is repeatedly scanned. Therefore, in order to protect the magnetic tape, the maximum continuous time of the recording pause (for example, 3 minutes) is determined. When the continuous time of the recording pause reaches the maximum continuous time, the recording pause is automatically canceled or the recording pause is performed. Stopped.

[0004] Therefore, in order to effectively extend the recording pause, the user performs an operation of, for example, predicting a timing shortly before the recording pause is released, releasing the recording pause, and then starting the recording pause again. Need
It was very troublesome. Therefore, an object of the present invention is to provide a rotary head type video tape recorder that allows a user to easily extend the continuous time of a recording pause.

[0005]

A rotary head type video tape recorder according to the present invention has a recording pause function.
A rotary head type video tape recorder in which the maximum continuous time of the recording pause is determined, a user operation means for operating start and release of the recording pause, and a pause time measuring means for measuring a continuous time of the recording pause, Pause control means for canceling the recording pause when a predetermined time close to the continuous time of the recording pause is reached and restarting the recording pause after a predetermined time until the recording pause is released by the user operation means. Is provided. In addition, the recording of the first video signal is stopped in the recording pause, and the second video signal different from the first video signal is recorded for a certain time during which the recording pause is released under the control of the pause control means.

In the present invention, the recording pause can be started by operating the user operation means. When the continuous time of the recording pause reaches a predetermined time close to the maximum continuous time, the recording pause is automatically released, and the recording pause is automatically restarted after a predetermined time. This operation ends when the recording pause is released by operating the user operation means. In this way, the recording pause is virtually automatically continued until the user performs a recording pause canceling operation, and the user can easily extend the continuous time of the recording pause.

In this case, the recording of the first video signal is stopped in the recording pause, and the second video signal different from the first video signal is recorded for a fixed time during which the recording pause is released by the pause control operation. You may make it. As a result, it is possible to effectively use the tape portion that runs for a fixed time during which the recording pause is released.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a configuration of a rotary head type video tape recorder 1 as an embodiment of the present invention. The video tape recorder (hereinafter, referred to as “VTR”) 1 has a recording pause function, and the maximum continuous time of the recording pause is set to, for example, three minutes.

The VTR 1 has magnetic heads 15a, 15
rotating drum 1 in which b is arranged at an angular interval of 180 °
Three. This rotating drum 13 is used for recording.
Drum motor 13a driven by driver 13b
To rotate at a constant speed. A magnetic tape 16 is obliquely wound around the rotary drum 13 over an angular range of approximately 180 °. This magnetic tape 16 is formed by the cooperation of the capstan 17 and the pinch roller 18.
During recording, the vehicle is driven at a constant speed. The capstan 17 is rotated by a capstan motor 17a driven by a driver 17b.

The VTR 1 includes a microcomputer and has a control unit 20 for controlling the entire operation. The control unit 20 is connected to a key operation unit 19 as a user operation unit, and is also connected to a display unit 21 including a liquid crystal display element for displaying an operation state and the like.

The VTR 1 has an input terminal 7 for inputting a video signal Va, an input terminal 8 for inputting a video signal Vb, and a changeover switch 9 for selectively extracting these video signals Va and Vb. Have. For example,
The video signal Va is a video signal related to a broadcast signal received by a tuner (not shown), and the video signal Vb is a video signal related to a broadcast signal received by another tuner (not shown). And a video signal related to the teletext signal received by the receiver.

The video signal Va supplied to the input terminal 7 is supplied to the fixed terminal on the a side of the changeover switch 9, while the video signal Vb supplied to the input terminal 8 is supplied to the fixed terminal on the b side of the changeover switch 9. Is done. The switching operation of the changeover switch 9 is controlled by the control unit 20. As will be described later, the fixed time during which the recording pause is canceled is connected to the b-side, and the other time is connected to the a-side.

A VTR 1 performs a recording signal processing circuit 10 for performing various processes on a video signal taken out by a changeover switch 9 to obtain a recording signal SR. Heads 15a, 15b
And a recording amplifier 12 for supplying the data to the recording amplifier 12.

The VTR 1 includes a synthesizing circuit 22 for synthesizing a video signal Va supplied to the input terminal 8 with a video signal Va supplied to the input terminal 7, and an image based on the video signal output from the synthesizing circuit 22. And a monitor 23 comprising a cathode ray tube or the like for displaying. For example, on the monitor 23, an image Ma based on the video signal Va is displayed on the main screen, and an image Mb based on the video signal Vb is displayed on the child screen.

The operation of the VTR 1 shown in FIG. 1 will be described. When the recording mode is set by the operation of the key operation unit 19 by the user, the changeover switch 9 is connected to the a side. Therefore, the video signal Va supplied to the input terminal 7 is
Is supplied to the recording signal processing circuit 10 through the side a. Then, a recording signal SR corresponding to the video signal Va is output from the processing circuit 10, and the recording signal SR is amplified by the recording amplifier 12, and then supplied to the magnetic heads 15a and 15b.

In this recording mode, as described above, the rotating drum 13 is rotated so that the magnetic heads 15a and 15b scan the magnetic tape 16 obliquely, and the magnetic tape 16 is moved by the capstan 17 and the pinch. The vehicle is driven at a constant speed by the cooperation of the rollers 18. Therefore, the recording signal SR supplied to the magnetic heads 15a and 15b is sequentially recorded on the inclined track of the magnetic tape 16.

Next, in this recording mode, the key operation unit 19
The operation performed when the pause key 19a is depressed to perform the recording pause operation will be described with reference to the flowchart of FIG. The flowchart of FIG.
3 shows the control operation. First, in step ST30,
The running of the magnetic tape 16 is stopped, the output of the recording signal SR from the recording signal processing circuit 10 is stopped, and a recording pause state is set. Then, in step ST31, a timer for measuring the continuous time T1 of the recording pause is started.

Next, in step ST32, it is determined whether or not the continuous time T1 of the recording pause has reached 2 minutes and 50 seconds. In step ST33, the pause key 19a has been depressed, that is, whether or not the user has performed an operation for releasing the recording pause. Determine whether or not. When the pause key 19a is not depressed and the continuous recording time T1 becomes 2 minutes and 50 seconds,
In step ST35, the changeover switch 9 is switched to the b side. Thereby, the video signal V supplied to the input terminal 8 is
b is supplied to the recording signal processing circuit 10.

Then, in step ST36, the running of the magnetic tape 16 is started, and at the same time, the output of the recording signal SR from the recording signal processing circuit 10 is started, and a recording state is set. As a result, a sub-recording state is established in which the recording signal SR relating to the video signal Vb is sequentially recorded on the inclined track of the magnetic tape 16.

Next, in step ST37, a timer for measuring the pause release time T2 is started. Then, in step ST38, the pause release time T2 is set to 10
It is determined whether or not the time has reached seconds.
Then, it is determined whether or not the pause key 19a has been pressed, that is, whether or not the user has performed an operation for canceling the recording pause. The pause key 19a is not depressed, and the pause release time T2 is 10
If the second has elapsed, the changeover switch 9 is switched to the a side in step ST40, and the process returns to step ST30. As a result, the recording pause state is set again, and control is performed so as to repeat the same operation as described above.

In step ST33, the pause key 1
If there is a depression of 9a, the running of the magnetic tape 16 is started in step ST41, the output of the recording signal SR from the recording signal processing circuit 10 is started, and the recording state is set, and the control operation is ended in step ST42. I do. In this recording state, a recording state of a normal program in which the recording signal SR related to the video signal Va is sequentially recorded on the inclined track of the magnetic tape 16 is set.

In step ST39, the pause key 1
If the switch 9 is depressed, the changeover switch 9 is switched to the "a" side in step ST43.
The program proceeds to step 1 to set a normal program recording state.
At 2, the control operation ends.

FIG. 3 shows an example of the control operation at the time of the recording pause described above. As shown in FIG. 3A, when the recording mode is set at the time point t1, a normal program recording state is set as shown in FIG. 3D. Thereafter, as shown in FIG. 3B, when the pause key 19a is depressed at the time point t2, FIG.
As shown in (5), a recording pause is started. Then, as shown in FIG. 3B, at time t3, the pause key 19 is pressed.
When a is depressed, the recording pause is released as shown in FIG. 3C, and the program returns to the normal program recording state as shown in FIG. 3D. In the period from the time point t2 to the time point t3, each time the continuous time T1 of the recording pause becomes 2 minutes and 50 seconds, a sub-recording state of 10 seconds is set as shown in FIG. 3E. FIG. 3F shows a running state of the magnetic tape 16.

FIG. 4 shows a recording state on the magnetic tape 16 corresponding to the control operation example shown in FIG. In this example, three sub-recordings are performed.

As described above, in the present embodiment, when the continuous time of the recording pause is 2 minutes and 50 seconds, which is close to the maximum continuous time of 3 minutes, the recording pause is canceled.
After a lapse of 0 seconds, the recording pause is resumed, and this is repeated until the user presses the pause key 19a to release the pause. Therefore, the user does not have to perform the operation of releasing the recording pause shortly before the maximum continuous time of the recording pause and then setting the recording pause again after that as in the conventional case. Can be extended as much as possible.

In this embodiment, the recording signal SR relating to the video signal Vb is recorded on the magnetic tape 16 within 10 seconds when the recording pause is released. The tape portion running per second can be used effectively. In the above-described embodiment, the recording signal SR related to the video signal Vb is recorded on the magnetic tape during 10 seconds when the recording pause is released. However, the present invention is not limited to this. Nothing needs to be recorded.

[0027]

According to the present invention, when the continuous time of the recording pause is a predetermined time close to the maximum continuous time, the recording pause is released, and the recording pause is restarted after a predetermined time. This operation is repeated until the recording pause is released, and the user can easily extend the continuous time of the recording pause as necessary without performing the operation of releasing and resuming the recording pause. Further, by recording a video signal different from the video signal to be subjected to the recording pause at a fixed time during which the pause is released, the tape portion running at the fixed time can be effectively used.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a rotary head type video tape recorder as an embodiment.

FIG. 2 is a flowchart illustrating a control operation during a recording pause.

FIG. 3 is a time chart illustrating an example of a control operation during a recording pause.

FIG. 4 is a diagram illustrating a recording state of a magnetic tape.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Video tape recorder 9 Changeover switch 10 Recording signal processing circuit 12 Recording amplifier 13 Rotary drum 13a Drum motor 13b Driver 15 Magnetic head 16 Magnetic tape 17 Capstan 17a Capstan motor 17b Driver 18 Pinch roller 19 Key operation part 19a Pause key 20 Control part 21 display unit 22 synthesizer 23 monitor

Claims (2)

[Claims] 1. A rotary head type video tape recorder having a recording pause function, wherein a maximum continuous time of the recording pause is determined, wherein a user operation means for starting and canceling a recording pause; A pause time measuring means for measuring a continuous time of the pause, and a user operation means for canceling the recording pause and restarting the recording pause after a predetermined time when a predetermined time close to the continuous time of the recording pause is reached. And a pause control means for controlling the recording head to repeat until the recording pause is released. 2. The recording of the first video signal is stopped at the recording pause, and a second time different from the first video signal is maintained for a predetermined time during which the recording pause is released under the control of the pause control means. The rotary head type video tape recorder according to claim 1, wherein a video signal is recorded.