Enhanced receiving chip for a computer monitor

• US 6,085,257 A
• Filed: 10/16/1997
• Issued: 07/04/2000
• Est. Priority Date: 10/16/1997
• Status: Expired due to Term

• Current Assignee: Avago Technologies General IP PTE Limited (Broadcom, Inc.)
• Original Assignee: LSI Logic Corporation (Broadcom, Inc.)
• Inventors: Ducaroir, Francois, Jenkins, Michael O., Nakamura, Karl S.
• Primary Examiner(s): Ralys, Joseph E.
• Assistant Examiner(s): OMAR, OMAR B
• Application Number:
  US08/951,896
• Time in Patent Office: 992 Days
• Field of Search: 710/1, 710/100, 348/476, 455/76, 455/404, 370/112, 370/84, 370/395, 370/402
• US Class Current: 710/1
• CPC Class Codes: G09G 2370/04 Exchange of auxiliary data, i.e. other than image data, between monitor and graphics controller
• 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

Abstract

An improved transceiver that is tightly integrated into an enhanced receiving chip for a computer monitor. The transceiver includes a receiver having a first input port for receiving serialized data, a first output port for transmitting deserialized data to the transceiver, and a second input port adapted for receiving feedback data forwarded from a sensor to an audio and video control unit. The serialized data comprises video, audio and control data. The transceiver further comprises a receiver operably coupled between the first input port and the first output port, as well as a timing generator coupled to recover a clock signal from the serialized data and to synchronize the deserialized data from the recovered clock. The transceiver also includes a transmitter with a third input port for receiving parallel data and a second output port for transmitting a serial data stream. The parallel data are received by the third input port concurrently with the serialized data being received by the first input port. A deserializer is coupled to convert the serialized data into the deserialized data. A serializer is coupled to convert the parallel data into the serial data stream. The transceiver is also part of a communications module, adapted for use in a monitor, also including a timing generator for generating a clock for synchronized timing, control registers for storing native format control data, and a sound generator for producing audio signals which correspond to native format audio data sent to the communications module from a base computer.

Claims

1. A transceiver, including a receiver comprising:

a first input port for receiving solely serialized data consisting of digital data from a computer system;

a deserializer coupled to convert said serialized data into deserialized data;

a timing generator coupled to recover a clock signal from transitions of said digital data and to synchronize said deserialized data using said clock signal;

a first output port for transmitting said deserialized data to a computer monitor; and

a second input port adapted for receiving feedback data forwarded from a sensor to an audio and video control unit operably coupled to the transceiver.

2. The transceiver as recited in claim 1, wherein said serialized data comprises video, audio and control data.

3. The transceiver as recited in claim 1, further including a transmitter comprising:

a third input port for receiving parallel data; and

a second output port for transmitting solely a serial data stream consisting of digital data.

4. The transceiver as recited in claim 3, wherein said parallel data is received by said third input port concurrent with said serialized data received by said first input port.

5. The transceiver as recited in claim 3, further comprising a serializer coupled to convert said parallel data into said serial data stream.

6. The transceiver as recited in claim 1, wherein said sensor dispatches said feedback data in response to palpable input.

7. The transceiver as recited in claim 1, wherein said sensor dispatches said feedback data in response to optical input.

8. The transceiver as recited in claim 1, wherein said sensor dispatches said feedback data in response to sonic input.

9. The transceiver as recited in claim 1, wherein said sensor dispatches said feedback data in response to physical contact thereon.

10. A communications module adapted for use in a computer monitor, comprising:

a timing generator for generating a clock signal for synchronized timing in the communications module;

a transceiver for transmitting and receiving serialized data selected from the group comprising video, audio and control data, wherein said transceiver includes;

a receiver having a receive buffer for receiving said data, wherein said receiver includes;

a deserializer for converting said serialized data into an input data format recognizable by the computer monitor;

a recovery and alignment logic coupled to said deserializer for recovering said input data and synchronizing the input data;

a receive clock generator which uses said clock signal to recover a data clock from said serialized data;

a transmitter for receiving an output data format recognizable by the computer monitor, wherein said transmitter includes a transmit buffer for transmitting said output data, and wherein said transmitter further includes;

a serializer coupled to said transmit buffer for converting said output data into a serial data stream;

a transmit clock generator which uses said clock signal to synchronize transmission by the transmit buffer and conversion by the serializer of said serial data stream;

an audio and video control unit coupled to receive said input data and dispatch said output data.

11. The communications module of claim 10, further comprising a sound generator for producing audio signals which correspond to the audio input or output data.

12. The communications module of claim 11, wherein said monolithic integrated circuit is a CMOS integrated circuit.

13. The computer monitor of claim 11, wherein said monolithic integrated circuit is a CMOS integrated circuit.

14. The communications module of claim 10, wherein said communications module is a monolithic integrated circuit.

15. The computer monitor of claim 10, wherein said communications module is a monolithic integrated circuit.

16. A computer monitor, comprising:

a communications module adapted for use in the computer monitor, said communications module including;

a timing generator for generating a clock signal for synchronized timing in the communications module;

a transceiver for transmitting and receiving serialized data selected from the group comprising video, audio and control data, wherein said transceiver includes;

a receiver having a receive buffer for receiving said data, wherein said receiver includes;

a deserializer for converting said serialized data into an input data format recognizable by the computer monitor;

a recovery and alignment logic coupled to said deserializer for recovering said input data and synchronizing the input data; and

a receive clock generator which uses said clock signal to recover a data clock from said serialized data; and

a transmitter for receiving an output data format recognizable by the computer monitor, wherein said transmitter includes a transmit buffer for transmitting said output data, and wherein said transmitter further includes;

a serializer coupled to said transmit buffer for converting said output data into a serial data stream; and

a transmit clock generator which uses said clock signal to synchronize transmission by the transmit buffer and conversion by the serializer of said serial data stream;

an audio and video control unit coupled to receive said input data and dispatch said output data; and

a display unit for displaying the video input or output data.

17. The computer monitor of claim 16, further comprising a sound generator for producing audio signals which correspond to the audio input or output data.

18. The computer monitor of claim 16, further comprising an input sensor configured to accept input in response to an output of said input or output data.