Multi-media processing system with wireless communication to a remote display and method using same

• US 6,020,863 A
• Filed: 02/27/1996
• Issued: 02/01/2000
• Est. Priority Date: 02/27/1996
• Status: Expired due to Term

• Current Assignee: Cirrus Logic Incorporated
• Original Assignee: Cirrus Logic Incorporated
• Inventors: Taylor, Ronald T.
• Primary Examiner(s): Brier, Jeffery
• Assistant Examiner(s): Bell, Paul A.
• Application Number:
  US08/607,806
• Time in Patent Office: 1,435 Days
• Field of Search: 345/2, 345/3, 345/1, 345/156-169, 345/115, 345/116, 395/326, 395/327, 395/328, 463/40, 364/705.05, 348/584, 348/585, 348/588, 348/589, 348/590
• US Class Current: 345/3.1
• CPC Class Codes: G06F 3/1431 using a single graphics controller
• CPC Class Codes: G09G 2340/125 wherein one of the images is motion video
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04
• CPC Class Codes: H04N 21/4122 additional display device, e.g. video projector digital output for controlling a plurality of local displays G06F3/1423
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/4143 embedded in a Personal Computer [PC]
• CPC Class Codes: H04N 21/426 Internal components of the client ; Characteristics thereof H04N5/44 takes precedence
• CPC Class Codes: H04N 21/43632 involving a wired protocol, e.g. IEEE 1394 high-speed IEEE 1394 serial bus H04L12/40052
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 5/38 Transmitter circuitry for the transmission of television signals according to analogue transmission standards H04N5/14 takes precedence

Abstract

A display control system (200) for transferring video and graphical data processed in a first processing device (201) having a dedicated display screen to a second processing device (202) for display on the screen (152) of a conventional television set (150). The first processing device (201) and the second processing device (202) communicate by means of a pair of optical driver/receivers (203, 207). The second processing device (202) captures selected frames from a broadcast television picture displayed on the screen (152) of the television (150) and transmits the captured frames to the first processing device (201) for storage or display on the dedicated display screen.

Claims

1. A display control system for displaying an image on a first display device and a substantially similar image on a screen of a second display device, said display control system comprising:

a first data processing device comprising;

a first display controller operating in conjunction with a central processing unit and a memory for receiving input data and, in response to said input data, generating digital display data operable to form a first image on said screen of said first display device coupled to said first data processing system and generating display update data operable to modify a portion of said first image; and

a first communication port coupled to said first display controller for transmitting said digital display data and said display update data; and

a second data processing device comprising;

a second communication port for receiving said transmitted digital display data and said transmitted display update data;

a second display controller operating in conjunction with a central processing unit and a memory coupled to said second communication port and receiving from said second communication port said transmitted digital display data and said transmitted display update data and, in response to said transmitted digital display data, forming on said screen of said second display device a second image in a window substantially similar to said first image on said screen of said first display device and, in response to said transmitted display update data, modifying a portion of said second image; and

a TV tuner for receiving a video signal and generating a background picture on said screen of said second display device, said window selectively overlaying at least a portion of said background picture.

2. The display control system in claim 1 wherein said first and second communication ports are optical driver-receivers for transmitting and receiving IR signals.

3. The display control system in claim 1 wherein said first and second communication ports are coupled together via a fiber-optic link.

4. The display control system in claim 1 wherein said first and second communication ports are coupled together via a telephone line.

5. The display control system in claim 1 wherein said input data are received from a keyboard coupled to said first data processing device.

6. The display control system in claim 1 wherein said input data are received from a tracking device coupled to said first data processing device.

7. The display control system in claim 1 wherein said input data are received from a stylus pad coupled to said first data processing device.

8. The display control system in claim 1 wherein said input data are received from a joystick or voice recognition device coupled to said first data processing device.

9. The display control system in claim 1 wherein said input data are received from a voice recognition device coupled to said first data processing device.

10. The display control system in claim 1 wherein said first data processing device further comprises a storage device and said input data comprises video data retrieved from said storage device.

11. The display control system in claim 1 wherein said first communication port receives video data in compressed format and transmits said compressed video data to said second communication port, and wherein said second image processor generates from said received compressed video data pixel data operable to form a video image on said second display device.

12. The display control system in claim 11 wherein said first communication port receives said video data from a source external to said first data processing device.

13. The display control system in claim 11 wherein said first communication port receives said video data from a storage device contained in said first data processing device.

14. The display control system in claim 1 wherein said second data processing device further comprises a television tuner for receiving an RF video signal and generating therefrom a processed video signal for display on said second display device.

15. The display control system in claim 14 wherein said second image processor captures selected frames of video data from said processed video signal and said second communication port transmits said captured selected frames to said first communication port of said first data processing system.

16. The display control system in claim 15 wherein said first communication port stores said selected frames transmitted from said second communication port and said first image processor displays said selected frames on said first display device.

17. In a display control system comprising a first data processing device including a controller operating in conjunction with a CPU and a memory device operable to display a first image on a screen of a first display device and a second data processing device including a controller operating in conjunction with a CPU and a memory operable to display a second substantially similar image in a window overlying at least a portion of a background picture on a screen of a second display device, a method of transmitting said first image from said first processing device to said second display device, the method comprising the steps of:

generating in said first data processing device first digital display data operable to form said first image on said screen of said first display device;

transmitting said first digital display data via a first communication port in said first data processing device to a comrnunication port in said second data processing device;

generating the background picture from received video data using a television tuner,

generating in said second data processing device from said first digital display second data operable to form a second image in the window on said screen of said second display device, wherein said second image is substantially similar to said first image;

generating in said first data processing device digital display update data operable to modify a portion of said first image;

transmitting said display update data via said first communication port to said communication port; and

in response to said transmitted display update data, modifying said second data, said modification of said second data operable to modify a portion of said second image corresponding to said modified portion of said first image.

18. The method in claim 17 wherein said first and second commmunication ports are optical driver-receivers for transmitting and receiving IR signals.

19. A display control system for displaying an image on both first and second display devices, said display control system comprising:

a first data processing device comprising;

a first display controller operating in conjunction with a central processing unit for receiving input data and, in response to said input data, generating digital display data defining a first display image on said first display device; and

a first communication port coupled to said first display controller for transmitting said display data; and

a second data processing device comprising;

a second communication port for receiving said digital display data transmitted by said first communication port of said first processing device;

a second display controller operating in conjunction with a central processing unit coupled to said second communication port for displaying on said second display device a second display image defined by said digital display data, said second display image disposed in a window overlying at least a portion of a video background picture; and

a TV tuner for generating said background picture.

20. The display control system in claim 19 wherein said communication ports of said first and second processing devices comprise optical driver-receivers for transmitting and receiving IR signals.

21. The display control system in claim 19 wherein said communication ports of said first and second processing devices are coupled together via a fiber-optic link.

22. The display control system in claim 19 wherein said input data are received from a keyboard coupled to said first data processing device.

23. The display control system in claim 19 wherein said input data are received from a mouse coupled to said first data processing device.

24. The display control system in claim 19 wherein said first data processing device further comprises a storage device and said input data comprises video data retrieved from said storage device.

25. The display control system in claim 19 wherein said communication port of said first data processing device receives video data in compressed format and transmits said compressed video data to said communication port of said second data processing device, and wherein said image processor of said second data processing device generates from said received compressed video data pixel data operable to form a video image on said second display device.

26. The display control system in claim 25 herein said communication port of said first data processing device receives said video data from a source external to said first data processing device.

27. The display control system in claim 25 wherein said communication port of said first data processing device receives said video data from a storage device contained in said first data processing device.

28. The display control system in claim 19 wherein said second data processing device further comprises a television tuner for receiving an RF video signal and generating therefrom a processed video signal for display on said second display device.

29. The display control system in claim 28 wherein said image processor of said second data processing device captures selected frames of video data from said processed video signal and said communication port of said second data processing device transmits said captured selected frames to said communication port of said first data processing device.