IMAGE DISPLAY SYSTEM, IMAGE DISPLAY UNIT AND REMOTE CONTROL DEVICE

• US 20110211131A1
• Filed: 08/28/2009
• Published: 09/01/2011
• Est. Priority Date: 09/08/2008
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Morimoto, Keiu, Kikuchi, Emiko
• Application Number:
  US13/062,678
• Publication Number:
  US 20110211131A1
• Time in Patent Office: Days
• US Class Current: 348/734
• CPC Class Codes: G06F 1/3218 of display devices
• CPC Class Codes: G06F 1/3265 Power saving in display device
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G08C 17/02 using a radio link
• CPC Class Codes: G08C 2201/50 Receiving or transmitting feedback, e.g. replies, status updates, acknowledgements, from the controlled devices
• CPC Class Codes: G09G 2330/021 Power management, e.g. power saving
• CPC Class Codes: G09G 5/12 Synchronisation between the display unit and other units, e.g. other display units, video-disc players
• CPC Class Codes: H04N 21/41265 having a remote control device for bidirectional communication between the remote control device and client device unidirectional remote control device H04N21/42204
• CPC Class Codes: H04N 21/42204 User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor constructive details of casings for the remote control device H01H9/0235; user interfaces for controlling a tuning device of a television receiver through a remote control H03J9/00; remote control of peripheral devices connected to a television receiver through the remote control device of the television receiver H04B1/205
• CPC Class Codes: H04N 21/42209 for displaying non-command information, e.g. electronic program guide [EPG], e-mail, messages or a second television channel
• CPC Class Codes: H04N 21/4436 Power management, e.g. shutting down unused components of the receiver power management in computer systems G06F1/3203; hibernate or awake process in computer systems G06F9/4418
• CPC Class Codes: H04N 5/44 Receiver circuitry for the reception of television signals according to analogue transmission standards H04N5/14 takes precedence
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

A television set (an image display unit) detects a state thereof, that is, what kind of image is being displayed, and when the state is changed, the television set transmits state information corresponding to the detected state to a remote control (a remote control device). When the remote control receives a state information, the remote control displays the state of the television set corresponding to the received state information in a display section.

Claims

1-16. -16. (canceled)

17. An image display system, comprising:

an image display unit; and

a remote control device for accepting an operation for controlling an operation of the image display unit and for transmitting a control signal to the image display unit;

wherein the image display unit and the remote control device are capable of performing two-way communications,

wherein the image display unit includes;

a first detecting section for detecting a state thereof where a kind of image is being displayed; and

a first transmitting section for transmitting state information corresponding to the state thereof to the remote control device when the state detected by the first detecting section is changed;

wherein the remote control device includes;

a display section; and

a first display control section for causing the display section to display, when the state information is received from the image display unit, the state of the image display unit corresponding to the received state information.

18. The image display system according to claim 17,

wherein the remote control device further includes:

a power reducing section for reducing power supplied to the display section of the remote control device in accordance with elapsed time;

a waiting section for waiting for an arbitrary operation in a condition where the power supplied to the display section is reduced;

a second transmitting section for transmitting, when the waiting section accepts the arbitrary operation, a request for state information corresponding to a state of the image display unit to the image display unit; and

a power restoring section for restoring the power supplied to the display section,

wherein the image display unit further includes;

a third transmitting section for transmitting, when the request for the state information is received from the remote control device, the state information corresponding to the state of the image display unit to the remote control device.

19. The image display system according to claim 17,

wherein the remote control device further includes:

a second display control section for causing to the display section to display an operation screen for accepting an operation in accordance with the state of the image display unit corresponding to the state information received from the image display unit.

20. The image display system according to claim 17,

wherein the image display unit is connectable to equipment,

wherein the image display unit further includes:

a second detecting section for detecting a content of processing executed in the connected equipment; and

a fourth transmitting section for transmitting, to the remote control device, information corresponding to the content of the processing of the equipment detected by the second detecting section;

wherein the remote control device further includes;

a third display control section for causing the display section to display the content of the processing of the equipment corresponding to the information received from the image display unit.

21. The image display system according to claim 20,

wherein the remote control device further includes:

a first accepting section for accepting an operation for controlling an operation of the equipment;

a fourth display control section for causing the display section to display an operation screen for accepting an operation in accordance with the content of the processing of the equipment corresponding to the information received from the image display unit; and

a fifth transmitting section for transmitting, to the image display unit, a control signal for controlling the operation of the equipment in accordance with the operation accepted by the first accepting section;

wherein the image display unit further includes;

an operation control section for controlling the operation of the equipment in accordance with the received control signal.

22. The image display system according to claim 17,

wherein the image display unit further includes:

a receiving section for receiving broadcasts; and

a second accepting section for accepting input of image data from an external,

wherein the first detecting section detects whether or not an obtaining image based on a received broadcast is being displayed, a channel of the broadcast based on the displayed image, a program of the broadcast based on the displayed image, or whether or not an obtaining image based on externally input data is being displayed.

23. An image display unit, capable of performing two-way communications with an external, for receiving a control signal from the external and for controlling an operation thereof in accordance with the received control signal, comprising:

a third detecting section for detecting a state thereof where a kind of image is being displayed; and

a sixth transmitting section for transmitting state information corresponding to the state detected by the third detecting section to the external when the state detected by the third detecting section is changed.

24. The image display unit according to claim 23, further comprising:

a first receiving section for receiving a request for state information from the external; and

a seventh transmitting section for transmitting, to the external, state information corresponding to the state detected by the third detecting section when the first receiving section receives the request for the state information.

25. The image display unit according to claim 23,

wherein the image display unit is connectable to equipment, and

the image display unit further comprising:

a fourth detecting section for detecting a content of processing executed in the connected equipment; and

an eighth transmitting section for transmitting, to the external, information corresponding to the content of the processing of the equipment detected by the fourth detecting section.

26. The image display unit according to claim 23, further comprising:

a second receiving section for receiving broadcasts; and

an accepting section for accepting input of image data from the external;

wherein the third detecting section detects whether or not an obtaining image based on a received broadcast is being displayed, a channel of the broadcast based on the displayed image, a program of the broadcast based on the displayed image, or whether or not an obtaining image based on externally input data is being displayed.

27. A remote control device, capable of performing two-way communications with a display unit for displaying images, for accepting an operation for controlling an operation of the display unit and for transmitting a control signal to the display unit, comprising:

a display section;

a third receiving section for receiving state information corresponding to a state of the display unit where a kind of image is being displayed; and

a fifth display control section for causing the display section to display, when the third receiving section receives the state information, the state of the display unit corresponding to the received state information.

28. The remote control device according to claim 27, further comprising:

a power reducing section for reducing power supplied to the display section in accordance with elapsed time;

a waiting section for waiting for an arbitrary operation in a condition where the power supplied to the display section is reduced;

a ninth transmitting section for transmitting a request for state information to the display unit when the waiting section accepts the arbitrary operation; and

a power restoring section for restoring the power supplied to the display section.

29. The remote control device according to claim 28, further comprising:

a variation sensor for detecting variation thereof;

wherein the waiting section determines that the arbitrary operation is accepted when the variation sensor detects variation of a prescribed amount or more.

30. The remote control device according to claim 28, further comprising:

a contact sensor for detecting a contact thereto by a user,

wherein the waiting section determines that the arbitrary operation is accepted when the contact sensor detects a contact.

31. The remote control device according to claim 27, further comprising:

a sixth display control section for causing the display section to display an operation screen for accepting an operation in accordance with the state of the display unit corresponding to the received state information.

32. The remote control device according to claim 27, further comprising:

a fourth receiving section for receiving, from the display unit, information corresponding to a content of processing executed in a second equipment connected to the display unit; and

a seventh display control section for causing the display section to display the content of the processing of the second equipment corresponding to the received information.

33. The remote control device according to claim 32, further comprising:

an accepting section for accepting an operation for controlling an operation of the second equipment;

an eighth display control section for causing the display section to display an operation screen for accepting an operation in accordance with the content of the processing of the second equipment corresponding to the information received from the display unit; and

a tenth transmitting section for transmitting, to the display unit, a control signal for controlling the operation of the second equipment in accordance with the operation accepted by the accepting section.