Owlink Technology, Inc.

Mingcheng Xu

Shing-Wu P Tzeng

Yong Guo

A flexible framing format and implementation scheme for transmitting uncompressed video data selected from a group of various video formats, audio data and control data over a single serial communication channel at a fixed clock rate, thereby eliminating the need for transmitting a pixel clock signal. The data is transmitted over the single communication channel in packets and recreated at the destination side. Blank pixels of the video data are completely suppressed so that only active pixels are transmitted over the single communication channel, thereby reducing communication bandwidth requirement of the channel.

Scheme for transmitting video and audio data of variable formats over a serial link of a fixed data rate

Implementation schemes for transmitting High-Bandwidth Digital Content (HDCP) control-related data in HDCP systems over a single communication channel.

HDCP data transmission over a single communication channel

A serial transmission protocol and architecture are provided that can be used to transmit uncompressed multimedia (e.g., video/audio/control data) over a high speed serial forward communication channel. A backward channel is also provided, for communicating control data. The protocol is implemented with a flexible packet format that supports all different modes of video data, and also supports 24 bit and 30 bit video data (or higher). An example application where the architecture and protocol can be used is a home entertainment multimedia system. A mechanism to implement EDID pass-through and protocols such as HDCP is also provided.

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Simi Valley, CA, United States of America

Mingcheng Xu