JPH04195985A - Video/audio reproducing device - Google Patents

Abstract

PURPOSE:To improve operability by providing a detecting means to detect that the power source of the video/audio reproducing device is tuned off and a controlling means that turns off the power source of the device based on the output of the detecting means. CONSTITUTION:By the detecting means 5, the switch of the power source circuit 7 of the video/audio reproducing device 1 is detected in off position. Upon receipt of this signal from the switch, a control request signal is sent out to a control means 6 to control the video display device 4. Then, through the use of a control by a bus, the power source of the picture display device 4 is turned off by the control means 6, and also for the picture display device 4 which is connected to display video/audio information reproduced by the video/audio reproducing device 1, such control as to cut the power source is simultaneously performed. Consequently, the input operation to the picture display device 4 by human hand is eliminated. Thus, a work to turn off the power source of the video/audio reproducing device is saved, speeded up and the operability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image/audio reproducing device, such as a video tape recorder or a video disk player, for reproducing image/audio information.

(Prior art) In recent years, video tape recorders (hereinafter referred to as VTRs) have been used at home.
Image and audio playback devices that handle image and audio information, such as video disk players and the like, are becoming more and more popular, and along with improvements in quality, demands for more advanced usage are increasing.

Conventionally, image display devices that display image information reproduced from a VTR or video disc player have a built-in tuner, such as a television receiver (hereinafter referred to as a TV).
There are devices such as display devices that do not have a built-in tuner (hereinafter referred to as monitors), and operations such as turning the power on and off or switching the image and audio signal for such monitors or TVs are , these were performed individually in a form independent of the image/audio reproducing device such as a VTR or video disc player to which they were connected.

[Problems to be Solved by the Invention] However, in such a conventional configuration, the reproduction of the image signal using the image/audio reproduction device and the image display device is completed;
Even after the power to the image and audio reproduction device is turned off, the monitor or TV connected to display image and audio information remains powered on, and the state before the power to the image and audio reproduction device was turned off. It is continuing. In other words, regardless of whether the image display device is a monitor or TV, the image and audio signals from the video input terminal are still connected while the power is on, so a meaningless screen is displayed. becomes. Therefore, it is necessary for a human to perform the operation of turning off the power to the image display device, and even though the processing procedure is almost constant, there is a problem in that it requires human intervention every time under a fixed situation.

The present invention has been made to solve these conventional problems, and by eliminating the need for human judgment and manual input operations, it can save labor and work on image display devices such as TVs and monitors. The purpose of the present invention is to provide an image/audio playback device that increases speed and improves operability.

[Means for Solving the Problems] The present invention has a reproducing means for reading information from a recording medium, and is connected to at least an image display device that receives an output signal from the reproducing means and displays an image. An image and audio playback device that outputs information, comprising a detection unit that detects whether the power of the image and audio playback device is turned off, and a control unit that turns off the power of the image display device based on the output of the detection unit. It is characterized by this.

[Effect]

According to the present invention having such characteristics, in an image/audio reproducing apparatus that reads and reproduces information from a recording medium, it is detected that the power of this apparatus is turned off, and when the power of the image/audio reproducing apparatus is turned off, the detecting means detects this. The power of the image display bag W connected to the image display bag W is automatically turned off.

[Example] An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a functional block diagram showing the overall configuration of an image and audio reproducing apparatus in an embodiment of the present invention.

In FIG. 1, the image and audio reproducing device l of this embodiment has the following characteristics:
The apparatus is mainly composed of a reproducing means 3 which reads and outputs the image and audio information recorded on the recording medium 2 as indicated by the dotted arrow by loading a recording medium 2 for recording and reproducing image and audio information.

An image display device 4 for displaying the image information indicated by the dotted line arrows outputted from the outside muko reproduction means 3 is connected to the outside. Furthermore, a detection means 5 for detecting a switch signal for turning off the power of the image and sound reproduction apparatus 1, and a control means 6 for turning off the power for the image display apparatus 4 are provided in the image and sound reproduction apparatus 1 of this embodiment, respectively. .

Here, the detection means 5. The control means 6 is actually composed of a microcomputer, a memory section for storing its control program, an input/output interface, etc. Solid arrows in FIG. 1 indicate control signals between these.

Further, the image/audio reproducing device 1 is specifically a VTR or a video disc player, and a reproducing means 3.
Detection means 5. A power supply circuit 7 is provided that supplies stabilized power to the control means 6 and the like and has a switch (not shown) for turning the power on and off.

The power to the image/audio reproducing apparatus 1 is turned off by the detection means 5 detecting a switch signal from a switch provided in a power supply circuit 7 that supplies power to the entire apparatus. At this time,
A power off play (not shown) is operated so that the voltage of the power supply to the circuits such as the detection means 5 and the control means 6 is not cut off until the control of the image display device 4 by the control means 6 is completed.

Control signals between the image display device 4 and the control means 6 are transmitted via a digital tometic bus (D2B) as an inter-device control signal line.

If the image display device 4 is a TV that receives broadcast radio waves and outputs image and audio signals, the TV body has a built-in tuner 8 that accepts image and audio signals from externally connected devices and displays the images. It also has a video input terminal 9 for outputting audio.

In the case of a monitor that does not receive broadcast radio waves and only displays image and audio signals from an externally connected device, the tuner 8 is not built into the monitor body.

The operation of the image/audio reproducing apparatus 1 of this embodiment configured as described above will be explained below.

First, the first operation of the image and audio reproducing device 1 is to reproduce image and audio information. That is, as shown by the dotted line arrow in FIG. do.

Next, the second operation of the image/audio reproduction 1 is the control of the image display device 4, which will be explained using FIG. 2.

FIG. 2 is a diagram illustrating in detail an example of processing contents in the detection means 5 and control means 6 of FIG. 1 based on a flowchart. In FIG. 2, first, in step 11, the detection means 5 detects that the power supply circuit 7 of the image and audio reproduction apparatus 1 is turned off. When this sui-nochi signal is obtained, the process proceeds to step 12, where the control means 6 controls the image display device 4.
A control request signal is sent to control the target. Next, in step 13, the control means 6 turns off the power to the image display device 4 using control by the D2B.

Here, step 11.12 is the detection means 5 which detects the power off of the image and audio reproduction device l and outputs a control dependent signal.
Step 13 achieves the function of the control means 6 which turns off the power to the image display device 4 based on the output of the detection means 5.

As described above, according to this embodiment, when the power supply circuit 7 of the image and audio reproduction device 1 is turned off, the connection is made to display the image and audio information reproduced from the image and audio reproduction device 1. By simultaneously controlling the image display device 4 to turn off its power, the image display device 4 can be turned off.
Manual input operations by humans can be eliminated.

In this embodiment, the control means 6 and the image display device 4 transmit control signals via a digital tometic bus (D2B), but human output signals may not be transmitted via a bus having such a predetermined format. Alternatively, the respective signals may be transmitted using conventional hard wires.

[Effects of the Invention] As described in detail above, according to the present invention, when the power to an image and audio reproduction device such as a TV or monitor is turned off, the power to the image display device is automatically turned off. By controlling the image display device, manual input operations by humans to the image display device can be eliminated. As a result, it is possible to save labor and speed up the work when turning off the power of the image and audio reproduction device, thereby improving operability, which has a great practical effect.

[Brief explanation of the drawing]

FIG. 1 is a functional block diagram of an image/audio reproducing apparatus according to an embodiment of the present invention, and FIG. 2 is a flowchart showing an example of processing contents in the detection means, control means, etc. in FIG. 1. 1--11--image and audio reproducing device, 2...-recording medium, 3--1--reproducing means, 4---1 image display device, 5--detecting means, 6 −1−−−−Control means, 7・−−1−−Power circuit, 8−−−
---Tuner. Figure 1 1 Image and audio playback device

Claims (1)

[Claims] (1) Image and audio reproduction that has a reproduction means for reading information from a recording medium, and is connected to at least an image display device that receives an output signal from the reproduction means and displays an image, and outputs the information from the reproduction means. The apparatus is characterized by comprising: a detection means for detecting power off of the image and audio reproduction device; and a control means for turning off the power of the image display device based on an output of the detection means. Image and audio playback device.