Broadcom Corporation

Jeffrey S Bauch

Stephen Petilli

Christopher Pasqualino

Darren Duane Neuman

Steven T Jaffe

Brian Francis Schoner

Rajesh Mamidwar

Chengfuh Jeffrey Tang

Greg Alan Kranawetter

Patrick Y Law

Sandeep Bhatia

Iue-Shuenn Chen

Aleksandr M Movshovich

Jason C Demas

Francis Cheung

Brad Albert Delanghe

David A Baer

Hoang Nhu

Ut Nguyen

Tracy C Denk

Shawn Val Johnson

James Douglas Sweet

Yao-Hua Tseng

Guang-Ting Shih

Brad Grossman

Chuck Monahan

David Chao Hua Wu

Dan Simon

Sang Van Tran

Thu T Nguyen

Hsien-Chih Jim Tseng

Ben Giese

Lakshman Ramakrishnan

Jeff Tingley

Keith LaRell Klingler

Richard Berard

Keith LaRell Klinger

One embodiment of the present invention uses an abbreviated blanking period, in comparison to the standard VESA and CEA-EIA blanking periods, in order to send data, including low bandwidth, non-timing information, over one or more channels of the digital video link. By shortening the blanking period, the amount of time available for sending data in each scan line is increased, enabling the system to send more data over each channel. The inactive video portion of a scan line sent during vertical sync may also be used to send additional digital data. Shortening the blanking periods and/or using the inactive video sections of the horizontal scan lines adds to the overall data capacity of the link and may be used to send other digital data, such as multichannel audio, video, control, timing, closed captioning or other digital data.

Digital visual interface with audio and auxiliary data

A television on a chip (TVOC) system that provides a cost effective approach for providing television functionality on a single integrated circuit chip is disclosed. A TVOC includes the functionality necessary to receive and display television signals in a variety of input and output formats. A TVOC can be used in set-top boxes for cable and satellite television, or directly within a television. All functionality provided can be provided on a single integrated circuit. TVOC includes a data transport module, an IF demodulator, a digital audio engine, an analog audio engine, a digital video engine, and an analog video engine. The TVOC also includes three sets of interfaces including output interfaces, control interfaces and ancillary interfaces. Further features and embodiments provide enhanced functionality and increased efficiencies.

Television functionality on a chip

One embodiment of the present invention uses an abbreviated blanking period, in comparison to the standard VESA and CEA-EIA blanking periods, in order to send data, including low bandwidth, non-timing information, over one or more channels of the digital video link. By shortening the blanking period, the amount of time available for sending data in each scan line is increased, enabling the system to send more data over each channel. The inactive video portion of a scan line sent during vertical sync may also be used to send additional digital data. Shortening the blanking periods and/or using the inactive video sections of the horizontal scan lines adds to the overall data capacity of the link and may be used to send other digital data, such as multi-channel audio, video, control, timing, closed captioning or other digital data.

Digital visual interface with audio and auxiliary data cross reference to related applications

A dual link transmitter constructed according to the present invention employs a single Phase Locked Loop (PLL) to service both a primary link and a secondary link during dual link mode operations. The structure of the dual link transmitter includes both a primary link PLL and a secondary link PLL. The primary link PLL produces a primary link clock and the secondary link PLL produces a secondary link clock. During dual single link operations, the primary link clock is used to service the primary link while the secondary link clock is used to service the secondary link. However, during dual link operations, the primary link clock is used to service both the primary link and the secondary link.

Dual link DVI transmitter serviced by single phase locked loop

Dual link DVI transmitter serviced by single Phase Locked Loop

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Torrance, CA, United States of America

Jeffrey S Bauch