JPH0787431A - Recorder, recording signal supply device and recording system comprising them - Google Patents

Abstract

PURPOSE:To provide a recorder easily implementing video recording of a broadcast program through timer reservation without provision of a tuner or a timer. CONSTITUTION:A 1st recorder without a timer video recording function is provided with a means 4 detecting the presence of an input signal and a means 3 controlling the recording so as to be stopped when no input signal is received and to be made when the input signal is received. The 1st recorder detects the connection between an input signal terminal 8 of the 1st recorder and an output terminal of a 2nd recorder (not shown) having a timer video recording function while the 2nd recorder is set to the video recording mode and provides an output and the 1st recorder implements timer video recording.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording device, a recording signal supply device, and a recording system including them, and more particularly to a recording device having a timer recording function, a recording signal supply device, and a recording system.

[0002]

2. Description of the Related Art A home-use VTR is a stationary VTR.
And a camera-integrated V in which the camera and VTR are integrally formed
TR (hereinafter referred to as integrated VTR). Further, as one of the functions of the home VTR, there is a timer recording function that automatically records the broadcast of the selected channel at a preset time. Currently, most stationary VTRs have this timer recording function. On the other hand, integrated VTR
Since the main purpose is to take pictures with a camera, and because of size, cost, etc., a tuner is not generally installed and does not have a timer recording function.

By the way, one of the features of the integrated VTR is
It has the advantage that it is easy to carry and you can enjoy playback anywhere by connecting a display device such as an LCD monitor. The type of software to play is roughly divided into software shot by the camera,
There are commercially available software and software that records broadcast programs. When a stationary VTR and an integrated VTR of the same format are owned, a broadcast program can be recorded using the timer recording function of the stationary VTR and played back by the integrated VTR. Alternatively, a tape recorded by a VTR having a timer recording function can be dubbed to an integrated VTR and reproduced by the integrated VTR.

However, stationary VTs of different formats
When the R is owned, the timer-recorded recording by the stationary VTR cannot be reproduced by the integrated VTR. Therefore, the video and audio signals from the video equipment equipped with the tuner are input to the external input terminal of the integrated VTR. Was connected to and recorded.

[0005]

When video and audio signals from a video device having the above tuner are connected to an external input terminal of the integrated VTR for recording, the integrated VTR does not have a timer recording function. Therefore, there is a problem that the operator has to perform recording start and end operations one by one, which is troublesome.

Further, as described above, in the method of dubbing a tape recorded by a VTR having a timer recording function to an integrated VTR, there are problems of troublesome operation, time required for dubbing, and deterioration of image quality due to dubbing. There has been a demand for a method of easily recording a broadcast signal directly with a timer.

The object of the present invention is to remedy the above problems,
It is an object of the present invention to provide a recording device and a recording signal supply device that can easily record a broadcast program by a timer even with a recording device that does not have a tuner, and a recording system including these.

[0008]

In order to achieve the above object, the present invention provides a means for detecting the presence or absence of an input signal in an integrated VTR, and when there is no input signal, recording is stopped and there is an input signal. In some cases, a means for controlling the recording is provided.

Further, according to the present invention, a recording signal input terminal,
A means for detecting the presence / absence of a signal input to the input terminal, a means for controlling the recording operation according to the detection result, and recording during the period when the signal is input to the input terminal, and the signal is input to the input terminal. A recording device including means for stopping recording during a period of no recording, a recording signal supply device having a tuner and a timer for outputting a reception signal of a preset channel at a preset time, and output from the recording signal supply device Means for guiding the generated signal to the input terminal of the recording apparatus.

[0010]

After the timer recording setting is completed, the VTR turns off the main power source and enters the standby state, and the output from the output terminal is also stopped. At the set recording time, the main power is turned on and the video and audio signals demodulated by the tuner are output from the output terminal. The integrated VTR detects this signal and starts recording. When the timer recording ends, the main power supply of the VTR is turned off again and the output of the VTR signal is stopped, so that the integrated VTR can detect this and automatically stop the recording.

By the above operation, the timer recording function can be realized by using the circuit of another VTR without providing a circuit such as a tuner and a timer in the integrated VTR, and the timer recording can be performed only by connecting the signal cable. Since it can be done, the operation becomes easy.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram for explaining the structure of the integrated VTR of the first embodiment of the present invention. In the figure,
1 is a recording signal processing circuit, 2 is a reproduction signal processing circuit, 3 is a system controller for switching various modes, and controlling the mechanical system of the recording unit, 4 is an input detection circuit for detecting the presence or absence of an input signal, and 5 is A mechanical system control circuit that controls the rotation of the motor and the like, and a power supply control circuit 6 that controls the supply of power to each block. Further, 7 is an output terminal for video and audio signals, 8 is an input terminal for video and audio signals, 9 is a switch, 10 is a magnetic tape, 11 is a rotating cylinder, 12
Is a magnetic head, 13 is a mode switch that also functions as a power source on / off switch and a camera mode / VTR mode selector switch, and 14 is a recording switch for instructing the start of recording.

Reference numeral 15 is a camera block, 16 is an input switching circuit for switching the input to the recording signal processing circuit 1 to an output signal of the camera block or an external input signal according to the mode switch 13, and 17 is an input signal and a reproduction signal. It is a switching circuit. These switching circuits 16 and 17 are controlled by a control signal from the system controller 3. Reference numeral 20 denotes a VTR mechanical system including a rotary cylinder 11, a capstan motor (not shown), a loading mechanism (not shown), and the like.

Next, a configuration example of a stationary VTR having a timer recording function will be described with reference to the block diagram of FIG. The stationary VTR is the integrated VT of FIG.
It may have the same format as R or may have a different format.

In the figure, 101 is an output terminal for video and audio signals, 102 is an antenna input terminal, 103 is an input terminal for video and audio signals, 104 is a tuner, and 105.
Is an input switching circuit between the tuner output and the signal from the input terminal 103, 106 is an output switching circuit between the input signal and the reproduction signal,
Reference numeral 107 is a recording signal processing circuit, 108 is a reproduction signal processing circuit, and 109 is a switch for switching the connection of the magnetic head 111 mounted on the rotary cylinder 110 between the recording circuit and the reproduction circuit. 112 is a system controller,
Reference numeral 113 is a timer, 114 is an operation panel, 115 is a rotation cylinder 110, rotation of a mechanical system such as a capstan motor (not shown) for tape transfer, a loading mechanism (not shown),
It is a drive system control circuit that controls drive. Reference numeral 116 indicates whether or not the cassette tape 117 is inserted into the mechanical section 118,
Tape cassette 117
And a switch for discriminating using an identification display provided on the tape cassette.

Next, the integrated VTR shown in FIG. 1 and the VTR shown in FIG.
The operation of timer recording of the integrated VTR using the above will be described.
When performing timer recording, first, the output terminal 101 of the stationary VTR and the input terminal 8 of the integrated VTR are connected with a cable. Next, timer recording is set by operating the timer 113 on the stationary VTR side. By this setting, a control signal is output from the system controller 112 to the input switching circuit 105 and the output switching circuit 106, the input switching circuit 105 selects the tuner 104, and the output switching circuit 1
06 selects an input signal. However, at this time, since the main power supply of the stationary VTR is off, the output terminal 1
The output from 01 is stopped.

After setting the timer recording on the stationary VTR side, the mode switch 13 is set to VT by operating the integrated VTR side.
Switch to the R mode and press the recording switch 14. At this time, as described above, since the main power supply of the stationary VTR is off and the output from the output terminal 101 is stopped, it is determined that the input detection circuit 4 of the integrated VTR is in the non-input state. As a result, the system controller 3 is an integrated VT.
Control R to standby. That is, the mechanical system is in a stopped state, and the supply of power source power to the blocks other than the system controller 3 and the input detection circuit 4 is stopped by the action of the power source control circuit 6. At this time, the system controller 3 causes the input switching circuit 16 to select the input terminal side 8 and the switch 9 to select the recording signal processing circuit 1.

Next, when the time set by the timer recording elapses, and before a predetermined time (for example, several tens of seconds) of the set time, the stationary VTR turns on the main power source to be in a recording standby state and output. The demodulated signal of the tuner 104 is output from the terminal 101. The input detection circuit 4 of the integrated VTR detects this and notifies the system controller 3 of it. The system controller 3 controls the power supply control circuit 6 by this notification. By this control, power is supplied to each block required for recording, the mechanical system such as the cylinder motor and the capstan motor is driven, and the recording is started.

When the timer recording of the VTR is finished, the main power source of the stationary VTR is turned off again, and the output terminal 101
Output is stopped. The input detection circuit 4 of the integrated VTR detects this, the system controller 3 stops recording, and the power supply is also turned off. Through the above processing, the program of the selected channel can be recorded by the integrated VTR for the time set by the stationary VTR.

The signal detection method of the input detection circuit 4 is not particularly limited, but for example, a sync signal may be extracted by a video signal sync separation circuit, and the presence or absence of the sync signal may be detected. The sync separation circuit is the recording signal processing circuit 1 or the mechanical system control circuit 5.
However, it can be implemented without increasing the number of parts or the cost by also using it.

As described above, according to the present embodiment, even if the stationary VTR has the same format as or different from the format of the integrated VTR, the integrated VTR and the stationary VTR are signaled. You can do timer recording just by connecting with a cable.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a block diagram showing the configuration of the integrated VTR of this embodiment.

The present embodiment differs from the first embodiment in that a timer 18 is added to the configuration of the first embodiment. The same reference numerals as those in FIG. 1 in FIG. 3 indicate the same or equivalent components. As the stationary VTR, the same VTR as in FIG. 2 can be used. The timer 18 starts its operation in response to an instruction from the system controller 3 and measures the predetermined time (for example, several tens of seconds) of the stationary VTR.

Next, the operation of this embodiment will be described. The description of the operation common to the first embodiment is omitted, and only the different operation will be described below. In the first embodiment, the recording is started immediately when the video and audio signals from the stationary VTR 101 are input to the input terminal 8 of the integrated VTR, but in the present embodiment, these signals are input. When detected, the integrated VTR is turned on, but recording is not started immediately and the timer 18 is turned on. The recording standby state is set for the set time until the timer 18 times out. That is, in this recording standby state, the cylinder rotates, but the capstan motor stops, and the magnetic head 12 also does not record. The time after the power is turned on is counted by the timer 18, and after the predetermined time is counted, the recording is started.

As described in the first embodiment, the stationary VTR turns on the power supply before the timer recording setting time to enter the recording standby state and starts outputting the video and audio signals. Therefore, in the first embodiment, recording of the integrated VTR is started before the timer set time. However, in the present embodiment, recording is not performed immediately after the input of a signal is detected, but recording is started after the timer 18 has counted a predetermined time, so there is an advantage that the recording of an unnecessary portion of the signal can be deleted.

By the way, the above-mentioned stationary VTRs of the first and second embodiments have a function of detecting the tape recording when setting the timer recording and not accepting the setting of the timer recording. . Therefore, in order to use the timer recording function of the VTR, it is necessary to attach a dummy tape to the stationary VTR and perform recording (of course, VT).
There is also a way to record the same program at the same time with a VTR and an integrated VTR for the purpose of recording at R). By the way, the processing of the stationary VTR when the tape is wound up to the end during the timer recording period depends on the manufacturer and model of the VTR, but when the tape is wound up, recording is stopped and the main power is turned off. There is also. When the main power supply is turned off, the output of signals is stopped and the recording of the integrated VTR is also interrupted. Therefore, it is necessary to confirm the remaining amount of the dummy tape, and if it is found that the remaining amount of the tape is small, the rewinding operation is required, which deteriorates the usability.

The following is a solution to this problem, which is a stationary VTR.
A dedicated dummy cassette for a stationary VTR for timer recording of an integrated VTR, which was invented to simplify the operation of the timer recording function of the integrated VTR regardless of the model, will be described with reference to FIG. FIG. 4 is a plan view of a dedicated dummy cassette suitable for use in this embodiment.

The structure of this dummy cassette differs depending on the VTR system, but here, as an example, the dummy cassette in the VHS system will be described. Dummy cassette 201
The outer shape of the cassette is the same as that of an ordinary cassette. No tape or tape hub is provided. Further, as shown in the figure, the light emitter 20 is provided at the center of the front part of the dummy cassette 201.
2 is provided, and if there is a tape, the light receiver 203 is provided at a position where the tape on the winding side and the tape on the supply side are sandwiched. further,
A light-shielding plate is provided at an appropriate position on the line connecting the light emitter 202 and the light receiver 203 (on the dotted line in the figure), for example, the front surface of the light emitter 202, and light emitted from the light emitter 202
So that it does not enter.

Generally, in the case of the VHS system, transparent leader tapes are provided at the winding start portion and the winding end portion of the tape in order to detect the winding start and winding end of the tape. When the light passes through the leader tape and enters the light receiver 203, it is recognized as the end of the tape. In the dummy cassette 201 of this embodiment, the light from the light emitting device 202 is not incident on the light receiving device 203, so that it is not recognized as the end of the tape.

Therefore, according to the present embodiment, the dedicated dummy tape is simply VT without worrying about the remaining amount of the dummy tape.
Since it only needs to be attached to the R, the usability of timer recording of the integrated VTR can be improved.

Next, a third embodiment of the present invention will be described. In this embodiment, recording is continuously performed by a plurality of VTRs by applying the first embodiment. FIG. 5 is a block diagram showing the configuration of the stationary VTR of this embodiment. In the figure, 120 is an output terminal, 121 is an output control circuit for controlling the output of the output terminal 120, and other reference numerals are the same as or equivalent to those shown in FIG. The output control circuit 121 is composed of, for example, a gate circuit, and is a period during which the stationary VTR is set for timer recording, and during this period, when the recording tape is wound up to the end of winding and recording is stopped. The gate is opened only to output the signal, and during the other period, the signal output is stopped. In addition,
It is detected by the mechanism control circuit 115 that the recording tape is wound up to the end of winding and recording is stopped,
The system controller 112 is notified. The system controller 112 follows the notification to output control circuit 12
1 to control the operation. As a result, the output control circuit 121 can operate as described above.

In the case of timer recording, first, the output terminal 120 and the input terminal 8 of the integrated recording apparatus shown in FIG.
5 is connected, and timer recording is set in the stationary VTR of FIG. 5, and the integrated VTR is also set in the recording mode.

When the tape of the stationary VTR is completely recorded within the timer recording setting period and the recording is stopped, the stationary VTR is recorded.
The demodulated signal from the TR tuner 104 is output to the output control circuit 121.
Through the output terminal 120 to the input terminal 8 of the integrated VTR
Input, the integrated VTR can detect this and start recording. This enables continuous recording (hereinafter referred to as relay recording) for a time longer than the recording time possible with one VTR. Alternatively, when recording is attempted, there is no chance of missing a recording opportunity because the tape having the desired recording time is not at hand.

In the above description, it is assumed that the output terminal 120 starts to output the demodulated signal after the recording is stopped. However, in the VTR having the function of calculating the remaining amount of the tape, the time when the recording is finished can be obtained in advance. Since it is possible to start the output from the output terminal 120 before the end of recording, the stationary VT
By providing a period in which recording is overlapped between the R and the integrated VTR, broadcast contents can be recorded without interruption.

In addition, although the output terminal 120 dedicated to relay recording is provided in this embodiment, it is not always necessary to provide the dedicated terminal, the conventional output terminal 101 is used, and the output changeover switch 106 is used to output a signal only for the predetermined period. May be output. In this case, the operation panel 114 may be provided with means for setting relay recording to distinguish it from normal recording.

In the embodiment described above, the stationary VT is used.
Although R has been described as a broadcast signal supply source and a signal is supplied from the stationary VTR to the integrated VTR, the present invention is not necessarily limited to this. For example, a television with a built-in timer, which can be turned on or off, or both and which has an external output terminal may be used as a signal supply source. That is, the essence of the present invention is to use the output signal of a device having a tuner and a timer function as a signal supply source and perform timer recording with an integrated VTR having no tuner, and output the signal at a predetermined time. Any device may be used as long as it is one. Further, the recording device is not limited to the integrated VTR, and may be of any type as long as it has a recording function.

[0037]

According to the present invention, a VTR having no tuner and timer recording function, for example, an integrated VTR, is provided with input signal detecting means, and recording is automatically started when a signal is input. Thus, by simply connecting the conventional VTR with a signal cable, the timer recording function of the VTR can be used to easily perform timer recording with the integrated VTR.

Also, this makes it easy to carry the integrated V
By taking advantage of the TR, the recorded image can be enjoyed at any place, and the use of the integrated VTR, which has been limited in the purpose of use in the past, can be expanded and the operating rate can be improved.

Further, a terminal for outputting a signal only when the tape is finished within the timer recording set time is provided on the VTR side, and the recording of a plurality of VTRs is made continuous simply by connecting this to the above VTR by a signal line. This makes it possible to significantly extend the continuous recordable time.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an integrated VTR according to a first embodiment of the present invention.

FIG. 2 is a block diagram of a VTR having a timer recording function according to the first embodiment of the present invention.

FIG. 3 is a block diagram of a VTR having a timer recording function according to a second embodiment of the present invention.

FIG. 4 is a plan view of a dummy cassette suitable for use in the present invention.

FIG. 5 is a block diagram showing a configuration of an integrated VTR according to a third embodiment of the present invention.

[Explanation of Codes] 1 ... Recording signal processing circuit, 3 ... System controller, 4
... input detection circuit, 8 ... input terminal, 13 ... mode switch, 14 ... recording switch, 18 ... timer, 101 ... output terminal, 104 ... tuner, 105 ... output switching circuit,
107 ... Recording signal processing circuit, 112 ... System controller, 113 ... Timer, 117 ... Tape cassette, 12
0 ... Output terminal, 121 ... Output control circuit

Front page continuation (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location H04N 5/7826 (72) Inventor Hideo Nishijima 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture Hitachi, Ltd. Visual media In the laboratory (72) Inventor Akifumi Mitsube, 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Prefecture

Claims (7)

[Claims] 1. A period for which a signal is input to the input terminal, the recording signal input terminal, means for detecting the presence or absence of the signal input to the input terminal, and means for controlling the recording operation according to the detection result. The recording device is characterized in that the recording is performed and the recording is stopped during a period when no signal is input to the input terminal. 2. The recording apparatus according to claim 1, further comprising means for counting time, wherein the input of a signal to the input terminal is detected and recording is started after a predetermined time has elapsed. Recording device. 3. The recording device according to claim 1, wherein the recording device is a magnetic tape recording device. 4. A recording signal input terminal, a means for detecting the presence or absence of a signal input to the input terminal, a means for controlling a recording operation according to the detection result, and a period during which a signal is input to the input terminal. Recorder that records and outputs a received signal of a preset channel at a preset time with a recorder and a recording device that has a means for stopping the recording during the period when no signal is input to the input terminal. The recording device includes a signal supply device and a means for guiding a signal output from the recording signal supply device to an input terminal of the recording device, and the recording device records the input signal from the recording signal supply device in the set period. The recording method characterized in that 5. A means having a tuner and a timer for recording a reception signal of a preset channel on a recording medium at a preset time, a signal output terminal, and recording on the recording medium within the preset period. A recording signal supply device, comprising means for outputting a demodulated signal of the tuner from the signal output terminal only during a stopped period. 6. A means having a tuner and a timer for recording a reception signal of a preset channel on a recording medium at a preset time, a signal output terminal, and means for controlling output of the signal output terminal are provided. , A recording signal supply device configured to output a signal from the signal output terminal only during a period during which recording on a recording medium is stopped within the set period, an input terminal for a recording signal, and a signal input to the input terminal. A means for detecting the presence or absence and a means for controlling the recording operation according to the detection result are provided, recording is performed during the period when a signal is input to the input terminal, and recording is stopped during the period when no signal is input to the input terminal. And a means for connecting an output terminal of the recording signal supply device and an input terminal of the recording device, and after the recording of the recording signal supply device is stopped, Recording method characterized by continuous recording. 7. The recording system according to claim 4 or 6, wherein the recording device is a magnetic tape recording device.