JP2002025238A - Recording and reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a recording and reproducing device which selects a desired signal from a plurality of receivers and performs video recording without reconnecting a monitor and the receivers and can display video on the monitor. SOLUTION: This 1st recording and reproducing device can easily perform a selection operation when the recording and reproducing device records the desired signal from a plurality of input signals and displays the signal on the monitor by providing the first selecting means for selecting one signal from the plurality of the input signals and outputting the signal to the recording medium and the second selecting means for outputting an input signal that is selected independently of the first selecting means to the monitor.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of selecting and recording a signal from a plurality of receivers and displaying the signal on a monitor device.

[0002]

2. Description of the Related Art FIG. 13 is a diagram showing a configuration of a VTR, a receiver and a monitor described in Japanese Patent Application Laid-Open No. 2000-21145. In the figure, 2 is a receiver, 3 is a monitor, and 4 is a digital VTR. When the timer output recording of the program output from the receiver 2 is performed by the digital VTR 4,
The display of the program guide is instructed using the remote controller 5. When the program guide is displayed on the monitor 3, a desired program is selected, and a timer reservation instruction is input from the remote controller 5. This reservation command is input to the control circuit 203 via the light receiving unit 208. The control circuit 203 extracts information on the reserved program from the program guide and inputs it to the memory 206 as timer reservation information. At this time, the digital VTR 4
It is confirmed from the timer reservation information of the digital VTR 4 stored in the memory 404 that there is no duplicate reservation by another receiver in the digital VTR 4. If it is confirmed that there is no overlap, the timer reservation command is sent to the control circuit 20.
3 to the digital VTR 4. Here, transmission and reception of timer reservation information and a timer reservation command are performed via the receiver 2 and the interface circuits 207 and 401 provided in the digital VTR 4. When recording a program by timer reservation, it is necessary to specify the receiving channel of the receiver 2 and control the recording of the digital VTR 4 at a specified time. In this case, the receiving channel is controlled by the receiver 2 and The recording control of the VTR 4 is performed by the digital VTR.

[0003]

According to the VTR shown in FIG. 13, an interface for communication between the receiver 2 and the VTR 4 is provided, and it is determined whether or not a duplicate reservation has been made. Can record video signals from the receiver. However, there is no description about a configuration for outputting signals from a plurality of receivers connected to the VTR 4 to the monitor 3 so that a signal from a desired receiver is displayed on the monitor 3 even during recording. . A conventional general VTR has no function of selecting and outputting a desired signal from signals output from a plurality of receivers and selecting another output signal to output to a monitor device. Since the number of input terminals provided in the device is also limited, the user has to reconnect the receiver to the monitor device in order to select a signal from a different receiver and output the signal to the monitor device.

[0004] The present invention has been made in view of the above-described problems, and it is possible to select and record a desired signal from a plurality of receivers without reconnecting a monitor device and a receiver. It is an object of the present invention to provide a recording / reproducing apparatus capable of selecting a signal from an arbitrary receiver and displaying the signal on a monitor device.

[0005]

A first recording / reproducing apparatus according to the present invention comprises: first selecting means for selecting one signal from a plurality of input signals; and recording the signal selected by the first selecting means. Recording means for recording on a medium; and second selecting means for selecting one of the plurality of input signals and outputting the selected signal to a monitor device.

In the first recording / reproducing apparatus, the recording means performs recording based on the presence or absence of a signal output from the first selecting means.

[0007] The first recording / reproducing apparatus further includes display means for displaying information for specifying a signal recorded by the recording means and a signal output to the monitor device via the second selecting means. It is a thing.

The first recording / reproducing apparatus further includes a signal detecting circuit for sequentially selecting and detecting a plurality of input signals at predetermined intervals, sequentially selecting and detecting a plurality of input signals at predetermined intervals, and starting detection. Thereafter, the first detected signal is selected by the first selecting means.

The first recording / reproducing apparatus further includes a signal detection circuit for sequentially selecting and detecting a plurality of input signals at predetermined intervals, sequentially selecting and detecting a plurality of input signals at predetermined intervals, and starting detection. Thereafter, the first detected signal is selected by the second selecting means.

In the first recording / reproducing apparatus, a plurality of second selecting means are provided.

[0011] Further, the apparatus further includes display means for displaying information for specifying a signal output to the monitor device via the second selection means.

[0012] A second recording / reproducing apparatus according to the present invention comprises: signal extraction means for extracting a signal of a predetermined receiver from a bit stream in which signals from a plurality of receivers are time-division multiplexed;
Recording and reproducing means for recording the signal extracted by the signal extracting means on a recording medium and reproducing the recorded signal; and signal superimposing means for superimposing and outputting the output of the recording and reproducing means on the bit stream. is there.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 The recording / reproducing apparatus according to the present embodiment includes a switch for selecting a recording signal for selecting a desired signal from a receiver connected to a plurality of input terminals and outputting the selected signal to recording means. A switch for selecting a desired signal from the device and outputting the selected signal to the monitor device (hereinafter, this operation is referred to as a through output). A switch for selecting a through output is provided. By switching these switches, the monitor device, the receiver, and the A desired signal is selected from a plurality of receivers, recorded, and displayed on the monitor device without reconnecting the monitor devices.

FIG. 1 is a block diagram showing a configuration of a recording / reproducing apparatus according to the present embodiment. In the figure, reference numeral 1a denotes a first video signal input terminal, 1b denotes a first audio signal input terminal (hereinafter, both are collectively referred to as a first input terminal), and 15a denotes a second video signal input terminal. , 15b is the second
(Hereinafter, both are collectively referred to as a second audio signal input terminal).
Input means). An output terminal of the receiver is connected to the first and second input terminals, and a video signal and an audio signal are input. Reference numerals 2 and 3 denote switches for selecting and outputting video signals input from the first and second video signal input terminals 1a and 15a, and reference numerals 16 and 20 denote video signals selected by the switches 2 and 3. A switch for selecting and outputting a corresponding audio signal. Reference numeral 6 denotes a video signal processing circuit, reference numeral 17 denotes an audio signal processing circuit, and reference numeral 7 denotes a recording / reproducing device that records a video signal and an audio signal input via the video signal processing circuit 6 and the audio signal processing circuit 17. . 4
Is a signal detection circuit for detecting a video signal input via the switch 2, and 5 is a microcomputer for controlling the entire system of the recording / reproducing apparatus shown in FIG. Reference numeral 8 denotes a switch for selecting and outputting one of the switch 3 and the output of the video signal processing circuit 6. Reference numeral 18 denotes a switch 20;
Alternatively, the switch selects and outputs an audio signal corresponding to the video signal selected by the switch 8 from the output of the audio signal processing circuit 17. Reference numeral 9 denotes a video signal output terminal that outputs a video signal to an external device, and 19 denotes an audio signal output terminal that outputs an audio signal to the external device (hereinafter, both are collectively referred to as an output terminal). 10 is switches 2, 3,
8, 16, 18, 20 and a power supply circuit for supplying power when the signal detection circuit 4 operates, 11 is a display tube for displaying the operation state of the system, 12 is a recording switch for performing a recording operation, and 13 is a recording switch. A through switch for performing an operation of outputting a signal to an external device through, and 21 is a power switch.

The operation of the recording / reproducing apparatus configured as described above will be described below. When selecting and recording a signal from a receiver connected to the first or second input terminal, first, a recording reservation function is provided by a recording reservation function provided on the receiver side. Next, by operating the recording switch 12, the input terminal to which the receiver having made the recording reservation is connected is designated. For example, the receiver that made the recording reservation is the first
If the input terminal is connected to the
When the first input terminal is designated by the following, the switch switching control signal 1 transmitted from the microcomputer 5
05 causes switches 2 and 16 to switch to the first
Is connected to the video signal input terminal 1a and the first audio signal input terminal 1b, and the power is supplied from the power supply circuit 10 to the signal detection circuit 4 to be in a recording standby state. Will be displayed to show that
The selection information is input to the memory 14. When the recording start time comes and a signal is input from the first video signal input terminal to the signal detection circuit 4 via the switch 2, the signal detection circuit 4 outputs a detection signal 10 indicating that the input of the signal has started.
2 is sent to the microcomputer 5. Upon receiving this, the microcomputer 5 sends a control signal 107 for starting recording to the video signal processing circuit 6, the recording / reproducing device 7, and the audio signal processing circuit 17, and the recording operation is started. When the recording end time comes and no signal is input to the signal detection circuit 4, the signal detection circuit 4 outputs a detection signal 102 indicating that the input of the signal has been completed to the microcomputer 5.
To send to. When this is received, the microcomputer 5
Sends a control signal 107 for ending the recording, and the recording operation is stopped.

When video and audio from a receiver connected to each input terminal are to be output through a monitor connected to the output side, an input terminal to which a signal to be output through is input is set by a through switch 13. specify. For example, when a signal from the receiver connected to the first input terminal is to be passed through, the through switch 13 is operated to designate the first input terminal. Thus, the switches 3 and 20 are connected to the first video signal input terminal and the first audio signal input terminal, respectively, and the switches 8 and 18 are connected to the outputs of the switches 3 and 20 respectively. . As a result, the signal from the first input terminal is output through to the monitor device connected to the output terminal. At this time, information indicating that the input signal from the first input terminal is being output through is displayed on the display tube 11. This selection information is input to the memory 14. According to the above operation, signals from a plurality of receivers can be selected and displayed on the external device even during the recording operation.

Here, the display method of the display tube 11 will be described.
An example is shown in FIG. In FIG. 2, reference numeral 41 denotes a recording selection display unit representing an input terminal to which a signal to be recorded is inputted, and reference numeral 42 denotes a through output selection display unit representing an input terminal to which a signal to be outputted through is inputted. In the example shown in FIG. 2, it is shown that the receiver connected to the second input terminal is reserved for recording, and the signal from the receiver connected to the first input terminal is output through to the external device. ing. Each time the selection of the input terminal is switched by operating the recording switch 12 and the through switch 13, the selection information is displayed on the recording display unit 41 and the through output selection display unit 42, and the recording standby state and the through output Are released, these displays are turned off. Thus, the recording selection display unit 4
1 and the through output selection display section 42 are provided independently, so that the user can easily grasp from which input terminal the signal is being recorded or through.
The display area 40 may also serve as a part for displaying other information, and may be displayed in different display colors so that the recording selection display section 41 and the through output selection display section 42 can be easily distinguished.

Further, by displaying a setting screen as shown in FIG. 3 on the monitor device connected to the output terminal, it is possible to select an input terminal for through output by remote operation on the monitor screen. In the setting screen shown in FIG. 3, reference numeral 46 denotes an information display section relating to the through output. When the signal of the first input terminal is passed through, the cursor 48 is moved to d1, and when the through output is not performed, the cursor is turned off. Set by moving. This setting screen is generated by the video signal processing circuit 6. When a command for setting an input terminal for through output on a monitor screen is transmitted using a remote control device such as a remote controller, the microcomputer 5 generates a setting screen as shown in FIG. Is sent. At this time, the switch 8 is connected to the video signal processing circuit 6, and the setting screen is displayed on the monitor screen. When the user selects the desired input terminal on this screen by the above-described operation, the selection information is stored in the memory 14, and the selected input terminal is switched to the selected input terminal based on the selection information of the through output stored in the memory 14. 3, 20 are connected, and switches 8, 18 are
They are connected to switches 2 and 20, respectively. This allows
The signal from the selected input terminal is passed through to the monitor device. By setting the signal for through output on the monitor screen in this manner, the operation can be performed while easily confirming the selection information from a place away from the recording / reproducing apparatus.

The recording switch 12 is operated by pressing the recording switch 12 from the initial state (the power supply circuit 10 is OFF), the power supply circuit 10 is turned on and the first input terminal is selected. Then, when the button is pressed again, the second input terminal is selected, and when the button is further pressed, the operation may return to the initial state again. In this case, the signal detection circuit 4 is always connected to the first or second video signal input terminal 1a, 15a via the switch 2. Since the recording operation is started when the detection signal 102 indicating that the video signal is input to the detection circuit 4 is output, the recording is performed in a state where the signal is input from the first and second input terminals. When starting the recording, when the recording circuit 12 is pressed, when the detection circuit 4 selects the input terminal by outputting the detection signal 102, a signal from another input terminal may be recorded. In order to eliminate such inconvenience, after a predetermined period has elapsed since the input terminal was selected by the recording switch 12, this selection was confirmed,
The detection signal 102 may be input from the signal detection circuit 4 to the microcomputer 5. Such an input terminal selection method will be described with reference to the flowchart shown in FIG.

When the recording switch 12 is pressed (ST1), information indicating a selectable input terminal (for example, d1) is displayed on the display tube 11 (ST2). At this time, when a predetermined time elapses after the timer starts, the input terminal being displayed is determined (ST4) and stored in the memory 14,
Switch 2 is connected to the selected input terminal (ST
5), the microcomputer 5 reads the signal detection information 102 and starts recording (ST6). In ST2, if the recording switch 12 is pressed again before the fixed time elapses (ST3, ST7), information indicating an unspecified input terminal (for example, d2) is displayed on the display tube 11 (ST8, ST8). ST2), the timer is restarted. If the recording switch 12 is not pressed again within a certain period of time as described above, this selection is confirmed and the detection signal 10
Reading of 2 starts.

In the recording / reproducing apparatus according to the present embodiment, the selection information by the recording switch 12 and the through switch 13 is always stored in the memory 14, so that even when the recording standby state or the through output is temporarily released, The selection information is read from the memory 14, and the previous selection can be automatically set. The operation method of the through switch 13 may be the same as the operation method of the recording switch 12 described above. In the present embodiment, the case where two input terminals are provided has been described.
The number of input terminals can be increased by configuring the devices 16 and 20 to switch and output signals from more input terminals.

Embodiment 2 FIG. In the first embodiment, when performing recording, it is necessary to select an input terminal to which a video to be recorded is input by operating the recording switch 12. For example, if the signal from the first input terminal is reserved and then the signal from the second input terminal is reserved and recorded, the switches 2 and 12 are connected to the first input terminal in the first recording and the first recording is performed. After the recording is completed, it is necessary to switch 2 and 12 to the first input terminal. The present embodiment relates to a recording / reproducing apparatus having a function of automatically detecting an input terminal to which a video signal is input during standby for recording, switching switches 2 and 16, and starting recording. In the present embodiment, a case will be described in which a signal input from any one of a plurality of input terminals is automatically detected. That is, when a recording reservation of the receiver connected to the first input terminal is made, it is assumed that no signal is input from another input terminal at the recording start time.

The operation of the recording / reproducing apparatus according to the present embodiment will be described with reference to FIG. Here, recording switch 1
Reference numeral 2 operates as a switch for setting recording standby and release. In the recording / reproducing apparatus according to the present embodiment,
After the recording reservation is made on the receiver side, when the recording standby state is set by the recording switch 12, the switch 2 is turned on by the switch switching control signal 105 transmitted from the microcomputer 5 to input the first and second video signal. Terminal 1a,
It is controlled to periodically select the signal from 15a.
Thereby, the first or second video signal input terminal 1
a, 15a can be automatically detected. At this time, information indicating that automatic detection is being performed is displayed on the display tube 11. It is desirable that the selection period be equal to or shorter than the generation period of the horizontal synchronization signal.

When the recording start time comes and a video signal is input from the first or second video signal input terminal 1a or 15a, the signal detection information 10 output from the signal detection circuit 4
By monitoring the timing of the switch signal 2 and the switch switching control signal 105, it is determined from which video input terminal the video signal is input, and the switch 2 is connected to the video signal input terminal detected first. At the same time, the connection of the switch 16 is also fixed to the audio signal input terminal corresponding to the video signal input terminal to which the switch 2 is connected. Thereby, the video signal is input to the signal detection circuit 4 via the switch 2,
The detection signal 102 is output to the microcomputer 5. The microcomputer 5 sends a recording control signal 107 for starting recording to the video signal processing circuit 6, the audio signal processing circuit 17, and the recording / reproducing device 7, and the recording is started.
Further, the display tube 11 displays information indicating that a signal from the input terminal whose selection is fixed is recorded. When the recording end time comes and no signal is input, the signal detection circuit 4 detects this and sends a detection signal 102 to the microcomputer 5 indicating that the input of the signal has stopped. Thereby, the microcomputer 5 transmits the control signal 107 for instructing stop of recording to the video signal processing circuit 6, the audio signal processing circuit 17, and the recording / reproducing device 7, and the recording operation ends. Thereafter, the switch 2 again switches the first and second switches.
Is controlled to periodically select the signals from the video signal input terminals 1a and 1b.

As described above, during standby for recording, the signals from the first and second video signal input terminals 1a and 15a are alternately detected, and the switches 2 and 1 are connected to the input terminal where the signal is detected first.
By fixing the connection of 6, the connection of the switch 2 can be automatically switched to perform recording when signals from different input terminals are continuously reserved for recording.

Embodiment 3 FIG. In the first and second embodiments, selection of a through output is performed by operating the through switch 13 and selecting an input terminal to which a signal to be subjected to a through output is input. It is necessary to switch the switches 3 and 20 by operating the switch 13. In this embodiment, when the power ON / OFF control is performed on the receiver side, the input terminal to which the power-on receiver is connected is automatically detected, and the signal is output to the monitor device. The present invention relates to a recording / reproducing device having a function. That is, according to the recording / reproducing apparatus according to the present embodiment, when the receiver connected to the first input terminal is turned on, the switch 3 is automatically connected to the first input terminal, so that the monitor device is connected to the first input terminal. The signal is output through, and this receiver is turned off.
When the receiver connected to the input terminal is turned on, the switch 3 is automatically connected to the second input terminal, and the signal is output to the monitor device through. In the present embodiment, a case will be described in which a signal input from any one of a plurality of input terminals is automatically detected. That is, when a signal of the receiver connected to the first input terminal is to be output through, it is assumed that no signal is input from another input terminal at the time of the output.

FIG. 5 is a block diagram showing the configuration of the recording / reproducing apparatus according to the present embodiment. In the figure, reference numeral 31 denotes a switch for switching between the output of the switch 2 and the output of the switch 3 and inputting it to the signal detection circuit 4, the operation of which is controlled by the microcomputer 5.

The operation of the recording / reproducing apparatus configured as described above will be described below. During recording and in the recording standby state, the switch 31 is connected to the output of the switch 2. In the recording standby state, the switch 2 is alternately switched as described in the second embodiment, so that the first and second switches are switched. An operation of detecting a signal input from the second video signal input terminals 1a and 15a is performed. When the recording and the recording standby state are released, the switch 31 is connected to the output of the switch 3. The switch 3 is controlled by a switch switching control signal 106 transmitted from the microcomputer 5.
Control is performed so that the first and second video signal input terminals 1a and 15a are alternately switched, and a through standby state is established. The display tube 11 displays information indicating that through output automatic detection is being performed.

In this state, when a video signal is input from the first or second video signal input terminal 1a, 15a, a signal is input to the signal detection circuit 4 via the switch 31.
By monitoring the timing of the signal detection information 102 output from the signal detection circuit 4 and the timing of the switch control signal 106, it is determined from which video input terminal the signal is input, and the first detected video signal The switch 3 is connected to the input terminal. At the same time, the switch 20 is connected to the audio signal input terminal corresponding to the video signal input terminal to which the switch 3 is connected. With the above operation, the input signal is automatically output through. At this time, information indicating the selected input terminal is displayed on the display tube 11. When the power supply on the receiver side is turned off, the signal detection circuit 4
As a result, a detection signal indicating that the input of the video signal has stopped is transmitted to the microcomputer 5. The microcomputer 5 transmits the switch switching control signal 106 to the switch 3 again. As a result, the switch 3 periodically selects the first and second video signal input terminals 1a and 15a,
Information indicating that automatic through detection is being performed is displayed on the display tube 11, and the display tube 11 again enters the through standby state.

As described above, in the present embodiment, the signals from the first and second video signal input terminals 1a and 15a are alternately detected during the stand-by mode, so that the signal of the receiver whose input has been started is started. Can be automatically displayed on the monitor device.

Embodiment 4 FIG. In the first embodiment, since only one signal of a system can be output from an output terminal at all times, signals from a plurality of receivers can be simultaneously output to a plurality of video display devices by using a different path from the receiver via another cable. Need to be reconnected. In the present embodiment, a recording / reproducing device capable of simultaneously displaying a signal of a selected one of a plurality of receivers on a plurality of video display devices will be described.

FIG. 6 is a block diagram showing the configuration of the recording / reproducing apparatus according to the present embodiment. In the figure, reference numeral 9a denotes a first video signal output terminal, and 9b denotes a first audio signal output terminal (hereinafter, these are collectively referred to as a first output terminal). 19a is a second video signal output terminal, and 19b is a second video signal output terminal.
(Hereinafter, these are collectively referred to as a second output terminal). 32a is a switch for selecting the video signal output to the first video signal output terminal 9a, 32b is a switch for selecting the audio signal output to the first audio signal output terminal 9b, and is selected by the switch 32a. The audio signal corresponding to the video signal thus selected is selected. 33a is a switch for selecting a video signal output to the second video signal output terminal 19a, 33b is a switch for selecting an audio signal output to the second audio signal output terminal 19b, and is selected by the switch 33a. Select the audio signal corresponding to the video signal. 13a is a first through switch for selecting a through output signal of the first output terminal;
13b is a second through switch for selecting the through output of the second output terminal.

The operation of the recording / reproducing apparatus configured as described above will be described below. First through switch 13
By operating a, a switch switching control signal 131a is transmitted from the microcomputer 5, and the connection of the switch 315a is switched to the terminal a, b or c,
In conjunction with this, the connection of the switch 315b is also changed to the terminals a, b,
Or it is switched to c. Thereby, the through output from the first and second input terminals or the video signal processing circuit 6
Can be selected and output to the first output terminal. By operating the second through switch 13b, a switch switching control signal 131b is transmitted from the microcomputer 5 and a signal output to the second output terminal can be similarly selected. Here, the operation method of each through switch is as follows. When the switch is pressed in the state where the through is released, the input terminal selected last time is set, and each time the switch is pressed again, the other input terminals are set, and all the input terminals are set. The through may be canceled when the output terminal is selected.

The input terminal from which the signal output to the first and second output terminals is always the memory 1
4 is stored. Therefore, when the through is temporarily released and the system is restarted, the previous selection information is read from the memory 14 and the previous selection information is automatically set. This selection information is displayed on the display tube 11 as shown in FIG. 7, and it is possible to confirm which output terminal is outputting a signal from which output terminal. In FIG. 7, 4
Reference numerals 3 and 44 denote display units that show through outputs of the first and second output terminals, respectively. In this case, the input signal from the first input terminal is output from the first output terminal, and the input signal from the second output terminal is output from the second output terminal.
When the through is released, the display unit 40 is turned off.
Thus, by providing the display unit that indicates the selection information of the receiver, the output state of each external device can be easily grasped. Further, the number of output terminals may be increased by further providing an output selection switch.

Embodiment 5 FIG. The recording / reproducing devices described in the first to fourth embodiments correspond to a case where a signal input from a receiver is an analog signal. In this embodiment, a recording / reproducing apparatus which can selectively record or pass through signals from a plurality of digital signal receivers will be described. FIG.
1 is a block diagram illustrating a configuration of a recording / reproducing device according to the present embodiment. In the figure, 221 and 222 are first and second digital signal input terminals, respectively. 23, 24
Is a switch for selecting and outputting digital signals input from the first and second digital signal input terminals 221 and 221. Reference numeral 25 denotes a code detection circuit to which the digital signal selected by the switch 2 is input, reference numeral 26 denotes a digital signal processing circuit, and reference numeral 27 denotes an output of the switch 24 or an output of the digital signal processing circuit 26 to select a digital signal output terminal 28
Switch. 10 is a switch 23, 2
4, 27, and a power supply circuit that supplies power when the code detection circuit 25 operates.

When recording digital signals input from the first or second digital signal input terminals 221 and 222, recording reservation is first performed by the recording reservation function on the receiver side, as in the first embodiment. After this, the recording switch 12
When a digital signal input terminal to which a signal to be recorded is input is selected, the switch 23 is connected to the selected digital signal input terminal. When the recording start time comes and a recorded program is input from the receiver, a digital signal is input to the code detection circuit 25 via the switch 23, and the detection signal 111 indicating that the input of the digital signal to the microcomputer 5 has been started. Is transmitted, the microcomputer 5 transmits a control signal 107 instructing the start of recording to the digital signal processing circuit 26 and the recording / reproducing apparatus 7, and the recording is started.

When a digital signal from each input terminal is output through to an external device, as in the first embodiment,
When the digital signal input terminal is selected by the through switch 13, the switch 24 is connected to the selected digital signal input terminal and the switch 27 is switched to the switch 24.
Connected to the output of At this time, as in the first embodiment, information indicating from which input terminal the through signal is output is displayed on the display tube 11.
This information is input to the memory 14.

The code detection circuit 25 may detect the clock part in the digital signal. However, if it is possible to detect that the program is being transmitted, the detection may be performed using the data part. When a recording reservation is made, code data unique to the program to be recorded is input in advance to the memory 14 by an input means (not shown), and this code data and the code data detected by the code detection circuit 25 are converted by the microcomputer 5. And the recording operation may be controlled. Further, by detecting the code for prohibiting copying of the program data portion by the code detection circuit 25, it is possible to prevent recording of a television commercial or the like. In this case, the recording start command from the microcomputer 5 is invalidated, and information indicating that copying is prohibited is displayed on the display tube 11.
In addition, the digital signal input terminals 221 and 222 and the digital signal output terminal 28 may be configured to handle double-line signals or may use an optical input / output interface.

Embodiment 6 FIG. In the fifth embodiment, an input terminal is provided for each digital signal receiver. However, in the present embodiment, a digital signal output from a plurality of receivers can be input from a single input terminal. 1 shows a playback device.

FIG. 9 is a block diagram showing the configuration of the recording / reproducing apparatus according to the present embodiment. In the figure, reference numeral 22 denotes a digital signal input terminal to which a bit stream on which signals from a plurality of digital signal receivers are superimposed is input, and 29 denotes a signal separation circuit for extracting data from a specific receiver from the input bit stream. , 30 convert the signal output from the digital signal processing circuit 26 into a digital signal input terminal 22.
And a power supply circuit 10 for supplying power when the signal separation circuit 29, the code detection circuit 25, and the signal superposition circuit 30 operate.

FIG. 10 is a diagram showing the configuration of a bit stream input to the digital signal input terminal 22, and FIG.
Shows an example of a method of connecting each device in the present embodiment. In FIG. 11, the output of the second digital signal receiver is connected to the input of the first digital signal receiver, and the output of the first digital signal receiver is connected to the digital signal input terminal 22 of the recording / reproducing apparatus. Is done. As a result, a time-division multiplexed signal as shown in FIG. 10 is generated.

Hereinafter, the operation of the recording / reproducing apparatus according to the present embodiment will be described. By operating the recording switch 12, the program data of the program to be recorded is extracted from the bit stream input to the digital signal input terminal 22 by the signal separation circuit 29 and input to the memory 14.
At this time, the recording information of the program is displayed on the display tube 11.

When the input of the bit stream is started at the program start time by the recording reservation function of the digital signal receiver or the like, the program data reserved for recording is extracted by the signal separation circuit 29 and input to the code detection circuit 25. . The code detection circuit 25 detects specific information included in the program data, and sends the result as a program detection signal 111 to the microcomputer. The microcomputer 5 receives the digital signal processing circuit 2 based on the program detection signal 111.
6, and a recording control signal is transmitted to the recording / reproducing device 7 to record the designated program. It will be the end time of the program,
When the data input is completed, the code detection circuit 25 detects this and transmits a signal to the microcomputer 5 indicating that the data input has been completed. The microcomputer 5 sends a recording control signal to the digital signal processing circuit 26 and the recording / reproducing device 7, and the recording operation ends.

The signal superimposing circuit 30 outputs the bit stream from the digital signal input terminal 22 to the digital signal output terminal 28 during recording standby, and obtains an output signal from the digital signal processing circuit 26 during recording or playback. If it is possible, the output signal is superimposed on the bit stream and output. FIG. 12 shows a digital signal processing circuit 26.
FIG. 4 is a diagram illustrating an output signal of a signal superimposing circuit 30 when the output of FIG. This allows the monitor device connected to the digital signal output terminal 28 to select and display the bit stream or the output data of the digital signal processing circuit 26 superimposed on the bit stream.

As described above, according to the recording / reproducing apparatus of the present embodiment, signals from a plurality of digital signal receivers are input from a single input terminal, and a predetermined signal is selected for recording or input. Since the signal can be passed to the external device, the connection of the external device can be easily performed.

The code detection circuit 25 may detect the clock portion in the digital signal. However, if it is possible to detect that the program is being transmitted, the detection may be performed using the data portion. When a recording reservation is made on the receiver side, the memory 14
By transmitting the code data unique to the program to be recorded to the microcomputer 5, the microcomputer 5 compares the code data with the code data detected by the code detection circuit 25 to control the recording operation. Also, the code detection circuit 2
By detecting the copy prohibition code in the program data portion at 5, it is also possible to prevent recording of television commercials and the like. Further, the form of the digital signal input terminal 22 and the digital signal output terminal 28 may be one that handles double-wire signals or one that uses an optical input / output interface. Further, the signals handled are IEEE
E1394 standard transport stream and USB
(Universal serial bus).

[0047]

According to the first recording / reproducing apparatus of the present invention, a first selecting means for selecting one signal from a plurality of input signals and outputting the selected signal to a recording medium is provided independently of the first selecting means. A second selecting means for outputting an input signal selected by the user to the monitor device, thereby facilitating a selection operation when recording a desired signal from a plurality of input signals or displaying the desired signal on the monitor device. Can be.

A second recording / reproducing apparatus according to the present invention comprises: a signal extracting means for extracting a signal of a predetermined receiver from a bit stream in which signals from a plurality of receivers are time-division multiplexed, and outputting the signal to a recording means; Signal superimposing means for superimposing the output of the reproducing means on the bit stream and outputting it to an external device, so that a desired signal can be extracted and recorded from the bit stream inputted to the single input means, The superimposed bit stream can be output to an external device.

[Brief description of the drawings]

FIG. 1 is a diagram showing a configuration of a recording and reproducing device according to a first embodiment.

FIG. 2 is a diagram showing a display example of a display tube of the recording / reproducing apparatus according to the first embodiment.

FIG. 3 is a diagram showing a through setting screen of the recording / reproducing apparatus according to the first embodiment.

FIG. 4 is a flowchart showing a method of operating a recording switch of the recording / reproducing apparatus according to the first embodiment.

FIG. 5 is a diagram showing a configuration of a recording / reproducing device according to a third embodiment.

FIG. 6 is a diagram showing a configuration of a recording / reproducing apparatus according to a fourth embodiment.

FIG. 7 is a diagram showing a display example of a display tube of a recording / reproducing device according to a fourth embodiment.

FIG. 8 is a diagram showing a configuration of a recording / reproducing apparatus according to a fifth embodiment.

FIG. 9 is a diagram showing a configuration of a recording / reproducing apparatus according to a sixth embodiment.

FIG. 10 is a diagram showing a configuration of an input signal of a recording / reproducing apparatus according to a sixth embodiment.

FIG. 11 is a diagram illustrating an example of a method of connecting a recording / reproducing device according to a sixth embodiment and a receiver.

FIG. 12 is a diagram showing a configuration of an output signal of a recording / reproducing apparatus according to a sixth embodiment.

FIG. 13 is a diagram illustrating an example of a conventional recording / reproducing apparatus.

[Explanation of symbols]

1a first video signal input terminal, 1b first audio signal input terminal, 15a second video signal input terminal, 15b
Second audio signal input terminal, 2, 3, 8, 16, 18, 2
0, 23, 24, 27, 31, 32a, 32b, 33
a, 33b switch, 4 signal detection circuit, 5 microcomputer, 6 video signal processing circuit, 7 recording / reproducing device, 10 power supply circuit, 11 display tube, 12 recording switch, 13 through switch, 13a first through switch, 13b 2 through switches, 14 memories,
21 power switch, 221 first digital signal input terminal, 222 second digital signal input terminal,

Claims (8)

[Claims] 1. A first selecting means for selecting one signal from a plurality of input signals, a recording means for recording a signal selected by the first selecting means on a recording medium, and one of the plurality of input signals. And a second selecting means for selecting one of the two and outputting the selected one to a monitor device. 2. The recording / reproducing apparatus according to claim 1, wherein the recording means performs recording based on the presence or absence of a signal output from the first selecting means. 3. A display in which the recording / reproducing apparatus according to claim 1 displays information specifying a signal recorded by a recording unit and a signal output to a monitor device via a second selecting unit. A recording / reproducing apparatus characterized by further comprising means. 4. The recording / reproducing apparatus according to claim 1, further comprising a signal detection circuit for sequentially selecting and detecting a plurality of input signals at predetermined time intervals, and after starting the detection, the first detected signal is transmitted to the second signal. A recording / reproducing apparatus, wherein the recording / reproducing apparatus is selected by one of the selecting means. 5. The recording / reproducing apparatus according to claim 1, further comprising a signal detection circuit for sequentially selecting and detecting a plurality of input signals at predetermined time intervals, and after starting the detection, the first detected signal is transmitted to the second signal. A recording / reproducing apparatus, wherein the recording / reproducing apparatus is selected by two selecting means. 6. The recording / reproducing apparatus according to claim 1, wherein a plurality of second selecting means are provided. 7. The recording and reproducing apparatus according to claim 6, wherein
Recording / reproducing apparatus further comprising display means for displaying information for specifying a signal output to the monitor device via the selection means. 8. A signal extracting means for extracting a signal of a predetermined receiver from a bit stream in which signals from a plurality of receivers are time-division multiplexed, and the signal extracted by the signal extracting means is recorded on a recording medium. A recording / reproducing means for reproducing a recording signal, and a signal superimposing means for superimposing an output of the recording / reproducing means on the bit stream for output.