JP2010277010A - Video display system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a video display system, capable of reducing standby electric power during a standby period and displaying a video image, within a period shorter than a predetermined time, when an electric supply is turned on from a standby state by user operation. <P>SOLUTION: The video display system includes a remote controller 11 serving as a portable remote operation device, and a video display device 12 communicating with the remote controller 11. The remote controller 11 includes a vibration detection part 3 detecting vibration of the remote controller 11 and outputting vibration detection information, and a transmission part 2 transmitting the vibration detection information to the video display device 12; the video display device 12 includes a reception part 7 receiving the vibration detection information; a main power supply 9 capable of supplying electric power to a predetermined main part in the video display device 12; and a control part 8 controlling the main power supply 9 on reception of the vibration detection information by the receiving part 7. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a video display system, and more particularly to a video display system that displays video at high speed when the power is turned on from a standby state.

  The conventional video display system has a problem that the startup speed is slow as the amount of data processing increases, and in order to reduce standby power in the standby state, only the standby power supply is energized and the main power supply is turned off. Therefore, it takes time to display an image when the power is turned on from a standby state. In order to reduce the time until video is displayed when the power is turned on from the standby state, an apparent standby state is provided in which the main power supply is energized even in the standby state, but the main power is always on. Therefore, there is a problem that standby power increases.

  As an improvement measure, a brightness sensor is provided, and a standby power is supplied only under a predetermined condition by detecting a brightness higher than a predetermined level (see, for example, Patent Document 1). In addition, the main power on / off time zone is learned and stored, and the main power off mode time is controlled (for example, see Patent Document 2).

JP 2008-131360 A Japanese Patent Laid-Open No. 7-212678

  When the apparent standby state is provided, even if the user does not use the device at all, since the main power is always turned on, there is a disadvantage that the same amount of power is consumed as when the device is used. is there.

  All of the above-described conventional techniques have the effect of reducing the standby power by detecting the chance that the user is likely to use the device and putting it in an apparent standby state, and turning off the main power at other occasions. However, the detected opportunity does not necessarily match the opportunity for the user to use the device, and even if the user does not use the device, the apparent standby state may be maintained, so even if the user does not use the device There is a disadvantage of consuming a large amount of standby power.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a video display system that suppresses unnecessary standby power and maintains a high startup speed when the power is turned on.

  The video display system according to the present invention includes a portable remote control device and a video display device that communicates with the remote control device. The remote control device detects vibration of the remote control device, and detects vibration detection information. And a transmission unit that transmits the vibration detection information to the video display device. The video display device includes a reception unit that receives the vibration detection information, and a predetermined unit in the video display device. A main power source capable of supplying power to the main part of the main unit, and a control unit that controls the main power source when the vibration detection information is received by the receiving unit.

  The video display system according to the present invention includes a portable remote control device and a video display device that communicates with the remote control device, wherein the remote control device detects vibration of the remote control device and vibrates. A vibration detection unit that outputs detection information; and a transmission unit that transmits the vibration detection information to the video display device. The video display device includes a reception unit that receives the vibration detection information; By providing a main power supply capable of supplying power to a predetermined main part of the apparatus and a control part that controls the main power supply when the vibration detection information is received by the receiving part, the user tries to watch the video It is possible to quickly detect the operation by the vibration detection unit and keep the startup speed fast. In addition, power consumption during standby can be suppressed during a time period when the user does not operate.

It is a block diagram which shows Embodiment 1 of this invention. It is a flowchart which shows the process sequence of this invention.

<A. Embodiment 1>
<A-1. Configuration>
FIG. 1 is a block diagram showing an embodiment of the inventive apparatus. FIG. 2 is a flowchart showing the processing of the inventive apparatus. Hereinafter, an example of an embodiment of the present invention will be described.

  The video display system according to the present invention includes a remote control 11 that is a portable remote control device and a video display device 12 that communicates with the remote control 11. The remote control 11 can accept an external operation. An operation unit 1 that receives a request to control the power supply of the video display device 12 by the external operation and outputs power control request information, a vibration detection unit 3, and a transmission unit 2 are provided.

  The operation unit 1 is provided with operation keys such as a power key 20 for receiving an external operation. The vibration detection unit 3 has a function of detecting vibration of the remote controller 11 and outputting vibration detection information. The transmission unit 2 transmits power control request information, which is the operation state of the operation unit 1, to the video display device 12, and transmits vibration detection information indicating the vibration state detected by the vibration detection unit 3 to the video display device 12. Have

  The video display device 12 receives the vibration detection information and the power supply control information transmitted from the transmission unit 2 of the remote controller 11, and the video display device 12 according to the vibration detection information and the power supply control information received by the reception unit 7. Control unit 8 that mainly controls the main power source 9, a sub power source 10 that supplies power to the receiving unit 7 and the control unit 8, a video input unit 4 that inputs video, and a video that is input from the video input unit 4 A video processing unit 5 that processes the video, a video display unit 6 that displays the video processed by the video processing unit 5, a video input unit 4, a video processing unit 5, and a video display unit that are predetermined main units in the video display device 12. 6 and a main power supply 9 for supplying power to the power supply 6. The main power supply 9 has a function of performing on / off control of operating power supplied to the video input unit 4, the video processing unit 5, and the video display unit 6 by the control unit 8.

<A-2. Operation>
When the video display device 12 is in a standby state in which the user does not use the device, the main power supply 9 is in an off state, power is not supplied to the video input unit 4, video processing unit 5, and video display unit 6. Only the unit 7 and the control unit 8 are supplied with power, and a state in which a signal from the remote controller 11 can be received in a standby state is maintained. As a result, when the user is not using it, only a small amount of power is consumed by the sub power supply 10.

  When the user presses the power key 20 provided on the remote controller 11, the remote controller 11 transmits a power-on signal as power control request information from the transmitter 2 to the receiver 7 of the video display device 12. The control unit 8 of the video display device 12 in the standby state turns on the main power supply 9 according to the power-on signal received by the reception unit 7, and supplies power to the video input unit 4, the video processing unit 5, and the video display unit 6. The video input from the video input unit 4 is displayed on the video display unit 6.

  When the main power supply 9 supplies power to the video input unit 4, the video processing unit 5, and the video display unit 6 and processing time is required until the video is displayed on the video display unit 6, the power key 20 of the remote controller 11 is used. It takes a predetermined time from when the button is pressed until the image is displayed on the image display unit 6. Therefore, in order to shorten the time until this display, the video display device 12 does not turn on the main power supply 9 after receiving the power-on signal, but uses a vibration signal as vibration detection information detected by the vibration detection unit 3. In the case of reception, power is supplied to the video input unit 4 and the video processing unit 5 and is activated in advance in an apparent standby state in which only power supply to the video display unit 6 is turned off.

  The video display device 12 stands by in an apparent standby state, and when the power-on signal is received by the receiving unit 7 by operating the power key 20 of the remote controller 11, the main power source 9 is controlled to supply power to the video display unit 6. At this time, since the video display device 12 is supplied with power to the video input unit 4 and the video processing unit 5 in advance and is ready to display the video, the apparent power is simply supplied to the video display unit 6. The time until the video is displayed can be shortened.

  Next, the processing procedure will be described with reference to the flowchart of FIG.

  After the power is turned on, first, in step S100, the video display device 12 turns on the sub power supply 10 to supply power only to the receiving unit 7 and the control unit 8, and shifts to the standby state of step S101 (power supply only to the sub power supply 10). To do. In this state, the video display device 12 holds a state in which remote control can be accepted by the remote controller 11 and stands by.

  When the user holds to turn on the power of the video display device 12 in the next step S102, it is detected that the vibration detection unit 3 of the remote control 11 has vibrated, and in step S103, the transmission unit 2 of the remote control 11 is detected. Transmits a vibration signal as vibration detection information to the receiving unit 7 of the video display device 12. If no vibration is detected, the standby state is maintained.

  In the next step S104, the control unit 8 of the video display device 12 that has received the vibration signal of step S103 supplies power to the video input unit 4 and the video processing unit 5, and the video display device 12 is capable of video output. Wait in standby state. At this time, since no power is supplied to the video display unit 6 of the video display device 12, no video is displayed. However, since preparations for displaying the video are completed, the video can be displayed at any time. .

  Next, in step S105, the remote controller 11 detects that the power key 20 of the operation unit 1 has been pressed by the user, and in step S106, the remote controller 11 sends a power-on signal from the transmission unit 2 to the reception unit 7 of the video display device 12. Send.

  If the power key 20 is not pressed after receiving the vibration detection information in step S104 and entering the apparent standby state, the power key 20 of the operation unit 1 of the remote controller 11 is not pressed within a certain period in step S109. It is determined that the information has not been received, and the control unit 8 of the video display device 12 automatically stops the power supply to the video input unit 4 and the video processing unit 5 and waits in step S101 (only the sub-power supply 10). Returns to the power supply). Thus, when there is no user operation, it returns to the standby state, so that it is possible to prevent malfunction of the vibration sensor (vibration detection unit 3) of the remote controller 11, and therefore, there is an effect of preventing the consumption of extra power consumption.

  In step S107, the power-on signal transmitted from the transmission unit 2 of the remote controller 11 is received by the receiving unit 7 of the video display device 12, and the control unit 8 supplies power to the video display unit 6 by the received power-on signal. In S108, the video display unit 6 displays the video input from the video input unit 4.

  At this time, since power is already supplied to the video input unit 4 and the video processing unit 5 of the video display device 12 and preparation for displaying the video is completed, the video is instantaneously displayed on the video display unit 6 of the video display device 12. Is output. At this time, since the user feels that the power of the video display device 12 has been turned on by operating the power key of the remote controller 11, the effect of improving the delay of the apparent startup speed can be obtained.

  By detecting that the user has the remote control according to the above embodiment, the standby state is shifted to the apparent standby state, so that the apparent time until the video display by the user power-on operation is shortened. Obtainable.

  Further, the video display device 12 itself shifts to an apparent standby state only when necessary without the user operating the video display device 12, and the user does not consume power unnecessarily. There is an effect to reduce standby power when not.

  As the vibration detection unit 3, a vibration sensor, an acceleration sensor, a tilt sensor, or the like can be applied. Furthermore, any sensor other than those described above can be applied as long as the vibration of the user holding the remote control 11 can be detected.

  As means for transmitting information from the remote controller 11 to the video display device 12, for example, wireless, wired, infrared, or the like can be applied.

  The present invention can be applied to, for example, a television receiver, a DVD recorder, a hard disk recorder, and the like.

<A-3. Effect>
According to the first embodiment of the present invention, the video display system includes the remote control 11 that is a portable remote control device and the video display device 12 that communicates with the remote control 11, and the remote control 11 vibrates the remote control 11. And a transmission unit 2 that transmits the vibration detection information to the video display device 12. The video display device 12 includes a reception unit 7 that receives the vibration detection information. By providing a main power source 9 capable of supplying power to a predetermined main part in the video display device 12 and a control unit 8 that controls the main power source 9 when vibration detection information is received by the receiving unit 7, It is possible to quickly detect the user's operation to view the video by the vibration detection unit 3 and keep the startup speed high. In addition, since it is not apparently in a standby state during a time period during which the user does not operate, power consumption during standby can be suppressed.

  Further, according to the first embodiment of the present invention, in the video display system, the remote controller 11 that is a remote operation device can accept an external operation and controls the power source of the video display device 12 by the external operation. In response to the request, the operation unit 1 further outputs the power control request information, the transmission unit 2 transmits the power control request information to the video display device 12, the reception unit 7 receives the power control request information, When the power control request information is received by the receiving unit 7, the control unit 8 controls the main power source 9 to reliably detect an opportunity that the user is likely to use the device. The power supply control request information is received by the video display device 12 that detects vibration and is in an apparent standby state, so that the startup speed can be kept high.

  Further, according to the first embodiment of the present invention, in the video display system, when the vibration detection information or the power supply control request information is received by the reception unit 7, the control unit 8 mainly starts to supply power. By controlling the power supply 9, the main power supply 9 of the video display device 12 can be turned on by vibration detection or a user operation.

  According to the first embodiment of the present invention, in the video display system, when the control unit 8 receives the vibration detection information and controls the main power source 9, the power control request information is not received within a predetermined time. By controlling the main power supply 9 so as to stop the power supply, even if vibration is detected due to a malfunction or the like, the standby power can be suppressed without entering the apparent standby state for a long time. it can.

  Further, according to the first embodiment of the present invention, in the video display system, predetermined main parts are processed by the video input unit 4 for inputting video and the video processing unit 5 for processing the input video. The control unit 8 starts to supply power to the video input unit 4 and the video processing unit 5 when the vibration detection information is received by the reception unit 7. When the power supply control request information is received, the main power supply 9 is controlled so as to start supplying power to the video display unit 6, so that vibration is detected in the vibration detection unit 3 and vibration detection information is received. When the video input unit 4 and the video processing unit 5 are turned on, and the power is supplied to the video display unit 6 so that the video display unit 6 can be started immediately, and the user operates to receive power control request information. Display 6 is on By starting with, it is possible to maintain fast startup speed.

  Further, according to the first embodiment of the present invention, in the video display system, the vibration detection unit 3 is any one of an acceleration sensor, a vibration sensor, and a tilt sensor, thereby detecting the vibration of the remote controller 11 and displaying the video. The display device 12 can be apparently put into a standby state, and the startup speed can be kept high.

  1 operation unit, 2 transmission unit, 3 vibration detection unit, 4 video input unit, 5 video processing unit, 6 video display unit, 7 reception unit, 8 control unit, 9 main power supply, 10 sub power supply, 11 remote control, 12 video display Device, 20 power key.

Claims (6)

A portable remote control device;
A video display device in communication with the remote control device;
The remote control device is:
A vibration detector that detects vibration of the remote control device and outputs vibration detection information;
A transmission unit for transmitting the vibration detection information to the video display device,
The video display device
A receiving unit for receiving the vibration detection information;
A main power supply capable of supplying power to a predetermined main part in the video display device;
A control unit that controls the main power supply when the vibration detection information is received by the reception unit;
Video display system. The remote operation device can further receive an external operation, and further includes an operation unit that receives a request to control the power of the video display device by the external operation and outputs power control request information.
The transmission unit transmits the power control request information to the video display device,
The receiving unit receives the power control request information,
The control unit controls the main power source when the receiving unit receives the power control request information.
The video display system according to claim 1. The control unit controls the main power supply to start power supply when the vibration detection information or the power supply control request information is received by the reception unit.
The video display system according to claim 2. The control unit controls the main power supply to stop power supply when the power supply control request information is not received within a predetermined time after the vibration detection information is received and the main power supply is controlled.
The video display system according to claim 2 or 3. The predetermined main part is:
A video input section for inputting video;
A video processing unit for processing the input video;
A video display unit for displaying the processed video,
The control unit starts power supply to the video input unit and the video processing unit when the vibration detection information is received by the reception unit, and the power control request information is received by the reception unit Controlling the main power supply to start power supply to the video display unit;
The video display system according to claim 2. The vibration detection unit is one of an acceleration sensor, a vibration sensor, and a tilt sensor.
The video display system according to claim 1.

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