Circuits, systems, and methods for communicating computer video output to a remote location

• US 6,219,695 B1
• Filed: 09/16/1997
• Issued: 04/17/2001
• Est. Priority Date: 09/16/1997
• Status: Expired due to Term

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Harrison, Susan Kay Duyka, Schachter, Kenneth W., Guttag, Karl M.
• Primary Examiner(s): Rinehart, Mark
• Assistant Examiner(s): Vaughn, Jr., William C.
• Application Number:
  US08/931,204
• Time in Patent Office: 1,309 Days
• Field of Search: 395/183.02, 395/183.03, 395/889, 709/217, 709/221, 709/237, 709/224, 709/218, 709/219, 709/203, 709/204, 709/205, 709/208, 445/557, 710/72, 714/25, 714/26
• US Class Current: 709/217
• CPC Class Codes: H04N 7/141 between two video terminals, e.g. videophone telephonic communication systems combined with television receiver for reception of entertainment or information matter H04M11/085

Abstract

An audiovisual communications configuration comprising an interface (28) for receiving from a computer (10) a video signal output by video circuitry (15) of the computer. In this context, the video signal is output by the video circuitry of the computer for displaying an image on a first screen display (18), and the computer includes a microprocessor (15). The audiovisual communications configuration further includes circuitry (64, 66, 68, 70) for coupling a video data signal to a telephone line (40). This circuitry for coupling a video data signal is controllable independently from the microprocessor. The video data signal is representative of the video signal output by the video circuitry. Moreover, the video data signal is configured to be received from the telephone line and decoded to display an image on a second screen display (42) remote from the first screen display. Lastly, the image on the second screen display is representative of the image on the first screen display.

Claims

1. An audiovisual communications configuration, comprising:

a communication link having a first station and a second station, said first and second stations remote from each other, each of said first and second stations coupled to said communication link for communication between said first station and said second station;

said first station having circuitry including a CPU for providing display data and controlling said communication link, a video storage device coupled to said CPU and said communication link and having first and second control ports, one of said control ports controllable by said CPU, and a control circuit for controlling said second port;

a first display device at said first station;

circuitry at said first station for converting said display data to a visual display of said data at said first display device and applying said display data to said communication link under control of at least one of said CPU and said control circuit;

a first voice communication device at said first station coupled to said communication link for applying audio data to said communication link;

said first display device and said first voice communication device being simultaneously couplable to said communication link for simultaneously sending both audio data and display data along said communication link;

a second display device at said second station coupled by said second station to said communication link; and

a second voice communication device at said second station coupled to said communication link;

said second display device and said second voice communication device being simultaneously couplable to said communication link for simultaneously receiving both said audio data and said display data transmitted along said communication link and simultaneously transmitting audio data from said second station to said first station along said communication link.

2. The audiovisual communication configuration of claim 1 wherein said circuitry includes means to simultaneously couple said first voice communication device and said first display device to said communication link for simultaneous transmission of said audio data and said display data along said communication link.

3. The audiovisual communications configuration of claim 1, wherein said communication link is a telephone line and said audio data and display data are both simultaneously transmitted along said telephone line.

4. The audiovisual communication configuration of claim 1 wherein said communication link can transmit audio data simultaneously from said first station to said second station and audio information from said second station to said first station.

5. The audiovisual communication configuration of claim 2 wherein said communication link can transmit audio data simultaneously from said first station to said second station and audio information from said second station to said first station.

6. The audiovisual communication configuration of claim 3 wherein said communication link can transmit audio data simultaneously from said first station to said second station and audio information from said second station to said first station.

11. The configuration system of claim 1 wherein said control circuit can override said CPU for control of said communication link.

7. A method of diagnosing an operation by a computer having a microprocessor, comprising the steps of:

providing a communication link having a first station and a second station, said first and second stations remote from each other, each of said first and second stations coupled to said communication link for communication between said first station and said second station, said first station having circuitry including a CPU for providing display data and controlling said communication link, a video storage device coupled to said CPU and said communication link and having first and second control ports, one of said control ports controllable by said CPU, and a control circuit for controlling said second port;

providing a first display device at said first station and circuitry at said first station for converting said display data to a visual display of said data at said first display device and applying said display data to said communication link under control of at least one of said CPU and said control circuit;

providing a first voice communication device at said first station coupled to said communication link for applying audio data to said communication link, said first display device and said first voice communication device being simultaneously couplable to said communication link for simultaneously sending both audio data and display data along said communication link;

providing a second display device at said second station coupled by said second station to said communication link;

providing a second voice communication device at said second station coupled to said communication link;

said second display device and said second voice communication device being simultaneously couplable to said communication link for simultaneously receiving both said audio data and said display data along said communication link and simultaneously transmitting audio data from said second station to said first station along said communication link;

transmitting said display data from said first station to said second station along said communication link; and

simultaneously with said transmission of said display data, transmitting audio data from said second station to said first station and from said first station to said second station along said communication link.

8. The method of claim 7, wherein said communication link is a telephone line and said audio data and display data are both simultaneously transmitted along said telephone line.

9. The method of claim 7 wherein said communication link can transmit audio data simultaneously from said first station to said second station and audio information from said second station to said first station.

10. The method of claim 8 wherein said communication link can transmit audio data simultaneously from said first station to said second station and audio information from said second station to said first station.

12. The method of claim 7 wherein said control circuit can override said CPU for control of said communication link.