JPH05182359A - State controller - Google Patents

Abstract

PURPOSE:To realize a state controller excellent in handleability by reproducing the controller required with a reproduction during a program viewing and restoring the state of the controller to a first viewing state at the end of reproduction. CONSTITUTION:A control section 9 controls VTRs 13, 14 and a laser disk player LDP 15, a switching section 8 selects any of them and a picture fitting or an audio signal to be selected is outputted from a CRT 10 or a speaker 11 and the state of the VTRs 13, 14 or the LDP 15 is stored in a memory 12. Then the control section 9 detects that the picture signal or the audio signal selected at present by the changeover section 8 is finished and controls the VTRs 13, 14 or the LDP 15 based on the state of the controller stored in the memory 12 and the state of the controller set at once is set again. Thus, the user gets out of trouble.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a state control device suitable for use in, for example, a video tape recorder, a laser disc player or a video system for controlling a device for outputting an image signal or an audio signal such as DAT.

[0002]

2. Description of the Related Art In a conventional video system, for example, tuning from a radio wave supplied from an antenna connected to a television receiver by a built-in tuner, that is, a target frequency band (channel) is selected,
This is demodulated to extract an image signal and an audio signal, and C
In addition to outputting from RT and speaker, connect video tape recorder (VTR) and laser disc player (LDP) to the television receiver, and select the image or sound to be played back by VTR and LDP as required. By doing so, it is possible to output from a CRT or a speaker.

Further, in such a video system, while watching a program (image and sound) output from a tuner incorporated in a television receiver,
For example, when an image and sound to be reproduced by the VTR are selected, when the reproduction is finished, a tuned program is output from the tuner selected before the VTR reproduction is started (VTR is selected). It is like this.

[0004]

By the way, while watching a program output from the tuner, an image and a sound reproduced by the VTR are selected and, for example, according to the sound level recorded in the VTR. When the volume output from the speaker is adjusted or the brightness or sharpness is adjusted to make it easier to see the image recorded on the VTR, the VTR playback ends and the output from the tuner again. Image and sound are C
When output from the RT and the speaker, the adjusted volume, brightness, sharpness, etc. must be readjusted to the original state (the state before the VTR playback is started), which is bothersome to the user. There was an issue that made me feel.

The present invention has been made in view of such a situation, and makes it possible to immediately restore the state of the apparatus.

[0006]

According to a first aspect of the present invention, there is provided a state control device including a device such as a video tape recorder (VTR) 13, 14 and a laser disc player (LDP) 15 for outputting an image signal or an audio signal. A control unit 9 as a control unit for controlling and selects either an image signal or an audio signal output from the VTR 13, an image signal or an audio signal output from the VTR 14, or an image signal or an audio signal output from the LDP 15. A switching unit 8 serving as a selection unit, and a VTR 13, 1 for outputting the image signal or the audio signal selected by the switching unit 8.
4 and the LDP 15 and a memory 12 as a storage means for storing the state, and a CRT 10 or a speaker 11 as an output means for outputting an image or a sound corresponding to the image signal or the sound signal selected by the switching unit 8, and controlling The unit 9 detects that the output of the image signal or the audio signal currently selected by the switching unit 8 is completed, and based on the state of the device stored in the memory 12, the VTR 13, 1
4 and LDP15 are controlled

This state control device stores VT in the memory 12.
The level of the audio signal output from R13, 14 and LDP15 can be stored.

[0008]

In the state control device according to claim 1, the control unit 9 controls the VTRs 13 and 14 and the LDP 15, and the switching unit 8 outputs an image signal or an audio signal output from the VTR 13 or an image signal output from the VTR 14. Alternatively, the VTR 13, 14 that selects either the audio signal or the image signal or audio signal output from the LDP 15 and outputs the selected image signal or audio signal
And the state of the LDP 15 is stored in the memory 12, and the image or voice corresponding to the image signal or voice signal selected by the switching unit 8 is output. Further, the control unit 9 detects that the output of the image signal or the audio signal currently selected by the switching unit 8 has ended, and based on the state of the device stored in the memory 12, the VTRs 13, 14 and LDP.
Control 15. Therefore, since the state of the device once set is reset, it is possible to prevent the user from feeling bothersome.

The memory 12 has VTRs 13, 14 and L
When the level of the audio signal output from the DP 15 can be stored, the audio is always output at the optimum volume.

[0010]

1 is a block diagram showing the configuration of an embodiment of a video system to which the state control device of the present invention is applied. The remote controller 2 includes a power switch for turning on / off the power of the television receiver 1, a channel button for selecting a channel, a volume adjusting switch for adjusting the sound output from the speaker 11, an image signal and sound output from the tuner 7. Of the image signal and the audio signal input to the switching unit 8 via the signal or the external input terminal,
A device connected to an external input terminal together with a selection switch for selecting an image signal and an audio signal to be supplied to the CRT 10 and the speaker 11 (in FIG. 1, video tape recorders (VTR) 13 and 14 and laser disc player (LDP)). 15) has a control switch for controlling the switch, and the light corresponding to the operated switch (button) is emitted from the built-in light emitting element. The light receiving unit 3 converts the light emitted from the remote controller 2 into an electric signal and outputs it to the CPU.
Supply to 5. The operation unit 4 has a switch (button) equivalent to that of the remote controller 2, and is used for turning on / off the power of the television receiver 1 and selecting a channel,
It is operated when controlling the devices (VTRs 13, 14 and LDP 15) connected to the external input terminals.

The volume 6 adjusts the sound (volume) output from the speaker 11 not only when the volume adjustment switch of the remote controller 2 or the operation unit 4 is operated, but also under the control of the CPU 5. The speaker 11 includes a switching unit 8
The audio signal (electrical signal) selected by is adjusted by the volume 6 and whose volume is adjusted (the level of the audio signal is adjusted) is converted into a sound and output (reproduced). The tuner 7 selects a target frequency band (channel) from a radio wave supplied from an antenna (not shown), extracts an image signal and an audio signal, and the image signal is sent to the CRT 10 via the switching unit 8 to the audio signal. Is supplied to the speaker 11 via the switching unit 8 and the volume 6.

The controller 9 controls the VTRs 13 and 14 and the LD.
It is serially connected to each control terminal (not shown) of P15, and responds to the operation of the remote controller 2 or the operation unit 4 by turning on / off the power of the VTRs 13 and 14 and the LDP 15 and reproducing images and sounds. Control movements. Further, the control unit 9 controls the VTRs 13 and 14 and the LDs.
A code (state code) indicating the operation state of each device, such as a code indicating the end of the reproducing operation (end code), output from P15 is detected.

The switching unit 8 is controlled by the CPU 5 and outputs an image signal and an audio signal output from the tuner 7 or an external device (VTR 13, VTR 13) supplied through an external input terminal.
14 and LDP 15) and one of the image and audio signals from the CRT 10 and volume 6
Supply to.

The memory 12 includes a tuner 7, a VTR 13,
14, the connection state between the LDP 15 and the switching unit 8 (where each device is connected to the switching unit 8), the device selected by the switching unit 8 at least once before, and the device is operating. For example, the image quality state (brightness, sharpness, chroma level, etc.), volume (volume 6 adjustment state), operation state (tuner 7 channel or LDP 15 operation mode (PC
Store the state of the device, such as M mode and analog audio mode)).

The CPU 5 controls the volume 6, tuner 7, switching unit 8 and control unit 9 when the remote controller 2 or the operating unit 4 is operated. Furthermore, the CPU 5
In addition to the status code detected by the control unit 9, the status of the device stored in the memory 12 is read as necessary, and each block such as the control unit 9 and the volume 6 is controlled so as to be in that status.

The CRT 10 displays an image corresponding to the image signal output from the switching section 8 on its screen.

Next, the operation will be described. When the tuner 7 is selected by operating the remote controller 2 or the operation unit 4, the target frequency band (channel) is selected from the radio waves supplied from the antenna (not shown), and the image signal and the audio signal are extracted. , The image signal and the audio signal are selected by the switching unit 8. The image signal is supplied to the CRT 10, and the audio signal is supplied to the speaker 11 after its level (volume) is adjusted by the volume 6.

Here, when the remote controller 2 is operated, the light corresponding to the operation is emitted from the light emitting element incorporated in the remote controller 2, and the light is received by the light receiving section 3, and the received light is obtained. It is converted into an electric signal and supplied to the CPU 5. When the operation unit 4 is operated, an electric signal corresponding to the operation is supplied to the CPU 5.

As described above, when the image signal and the audio signal output from the tuner 7 are selected by the switching unit 8 and the program is being viewed on the television receiver 1, a device which is not selected by the switching unit 8 is selected. , For example VTR1
When the remote controller 2 or the operation unit 4 is operated to start the reproduction of No. 3, the state of the device that has been selected by the switching unit 8 until now, that is, the connection state of the tuner 7 (which input of the switching unit 8 Whether it is connected to a terminal), the channel selected by the tuner 7, the volume adjusted by the volume 6, and the like are stored in the memory 12 via the CPU 5.

When the state of the tuner 7 is stored in the memory 12, the CPU 5 outputs a control signal to the switching unit 8 so that the image signal and the audio signal output from the VTR 13 are selected, and the VTR 13 outputs a signal. A control signal is output to the control unit 9 so as to control the start of the reproduction operation. Then, in the control unit 9, the CPU
According to the control signal output from the VTR 13, the VTR 13 outputs the image signal and the audio signal (VTR
A control signal is output to the VTR 13 via the control terminal so that the image signal and the audio signal are reproduced by the video signal 13 and the audio signal 13 and the VTR 13 starts to output (reproduce) the image signal and the audio signal. At the same time, the switching unit 8 selects the image signal and the audio signal output from the VTR 13 according to the control signal output from the CPU 5.

The image signal output from the VTR 13 selected by the switching unit 8 is supplied to the CRT 10 and the CRT 10
At, the image corresponding to the image signal is displayed on the screen. The level of the audio signal output from the VTR 13 selected by the switching unit 8 is adjusted in the volume 6 and supplied to the speaker 11. In the speaker 11, the audio signal (electrical signal) is converted into audio. Is output.

At this time, for example, in order to make it easier to see the image displayed on the CRT 10 (the image output from the VTR 13), the image quality such as brightness, sharpness and chroma level is adjusted, and the sound output from the speaker 11 (from the VTR 13). The user adjusts the volume of the output sound so that it can be heard easily.

When the reproducing operation of the VTR 13 is completed, the control unit 9
When the end code indicating the end of the reproducing operation output from the VTR 13 is detected, the state of the VTR 13,
That is, the connection state of the VTR 13 (which input terminal of the switching unit 8 the VTR 13 is connected to), the volume adjusted by the volume 6, and the like are stored in the memory 12 via the CPU 5. Then, before the reproduction operation of the VTR 13 is started, the state of the device stored in the memory 12, that is, the connection state of the tuner 7 (which input terminal of the switching unit 8 is connected to the tuner 7), is selected by the tuner 7. The channel, the volume adjusted by the volume 6 and the like which have been set are read out by the CPU 5, and each block such as the control unit 9 and the volume 6 is controlled so as to be in that state.

Next, referring to the flow chart of FIG.
The operation will be further described. First, in step S1, the remote controller 2 or the operation unit 4 is operated so as to start the reproduction operation (output of the image signal and the audio signal) of the device (other device) not currently selected by the switching unit 8. Whether or not it is determined. If it is determined in step S1 that the remote controller 2 or the operation unit 4 is not operated to start the reproduction operation of another device, step S1.
The process 1 is repeated. When it is determined in step S1 that the remote controller 2 or the operation unit 4 is operated so as to start the reproducing operation of another device, the process proceeds to step S2, and the state of the device selected by the switching unit 8 until now ( The connection state between the device and the switching unit 8 and the volume adjusted by the volume 6 are stored, and the process proceeds to step S3.

In step S3, the device requested to start the reproducing operation by operating the remote controller 2 or the operation section 4 is detected (determined), and in step S4,
The device is selected by the switching unit 8, the reproduction operation of the device is started, and the process proceeds to step S5. In step S5, it is determined whether or not the reproduction operation of the newly selected device is completed. When it is determined in step S5 that the reproduction operation of the newly selected device is not completed, the process of step S5 is repeated. If it is determined in step S5 that the reproduction operation of the newly selected device has ended, the process proceeds to step S6, and the state of the device that has been determined to have completed the reproduction operation in step S5 is stored.
Proceed to 7. In step S7, the state of the device stored in step S2 is read, the state is set again, and the process ends.

As described above, since the state of the device selected by the switching unit 8 at least once before is stored, when the operation of the currently selected device is completed,
You can immediately return to the previously selected state.

In this embodiment, the tuner 7 capable of outputting both the image signal and the audio signal,
The VTRs 13 and 14 and the LDP 15 are the devices that can be selected by the switching unit 8. However, for example, a device that outputs only an audio signal such as DAT is connected to the external input terminal of the television receiver 1 and selected by the switching unit 8. You can be able to. Furthermore, in this embodiment,
The tuner 7 is built in the television receiver 1, but the tuner 7 is not built in the television receiver 1 in this way, and like the VTRs 13 and 14 and the LDP 15, the tuner 7 is also an independent device. The system can be configured by connecting to the external input terminal of the receiver 1.

[0028]

According to the state control device of the first aspect, the control means controls a plurality of devices for outputting image signals or audio signals, and the image signals or audio signals output from the plurality of devices are controlled. One of them is selected by the selection means, the state of the device that outputs the selected image signal or audio signal is stored in the storage means, and the image or audio corresponding to the image signal or audio signal selected by the selection means is output. .. Further, the control means detects that the output of the image signal or the audio signal currently selected by the selection means has ended, and outputs the image signal or the audio signal based on the state of the device stored in the storage means. To control.
Therefore, the state of the device once set is reset,
It is prevented that the user feels troublesome.

According to the state control device of the second aspect,
Since the storage means is made to store the level of the audio signal output from the device for outputting the image signal or the audio signal, the audio can be always output at the optimum volume.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a video system to which a state control device of the present invention is applied.

FIG. 2 is a flowchart illustrating the operation of the embodiment of FIG.

[Explanation of symbols]

 1 television receiver 2 remote controller 3 light receiving unit 4 operating unit 5 CPU 6 volume 7 tuner 8 switching unit 9 control unit 10 CRT 11 speaker 12 memory 13, 14 video tape recorder (VTR) 15 laser disc player (LDP)

Claims (2)

[Claims] 1. A control means for controlling a plurality of devices for outputting an image signal or an audio signal, and a selection means for selecting either an image signal or an audio signal output from the plurality of devices controlled by the control means. Storage means for storing the state of the device for outputting the image signal or audio signal selected by the selecting means, and output means for outputting an image or audio corresponding to the image signal or audio signal selected by the selecting means And, the control means detects that the output of the image signal or the audio signal currently selected by the selection means has ended, based on the state of the device stored in the storage means,
A state control device characterized by controlling the device previously selected by the selecting means. 2. The state control device according to claim 1, wherein the storage means stores the level of the audio signal output from the device.