Silicon Image Gmbh

Other

Ken-Sue Tan

Russel A Martin

Gyudong Kim

James D Lyle

Min-Kyu Kim

Paul Daniel Wolf

William Conrad Altmann

Long Van Pham

A communication system including a transmitter, a receiver, and a TMDS-like link, in which video data and auxiliary data (typically including timing data associated with other auxiliary data) are transmitted from the transmitter to the receiver, or in which video data are transmitted over the link from the transmitter to the receiver, and auxiliary data (typically including timing data associated with other auxiliary data) are transmitted from the receiver to the transmitter. In typical embodiments the auxiliary data include one or more streams of audio data. Other aspects are transmitters and receivers for use in such a system, methods for sending auxiliary data and video data over a TMDS-like link, methods for transmitting and recovering clocks for auxiliary data transmitted over such a link, methods for synchronizing auxiliary data transmitted over such a link with video data transmitted over such a link, and methods for generating clocks having frequency closely matching the rate at which the auxiliary data are transmitted over such a link.

Method and apparatus for sending auxiliary data on a TMDS-like link

A communication system including a transmitter, a receiver, and a TMDS-like link, in which video data and auxiliary data are transmitted from the transmitter to the receiver, or in which video data are transmitted over the link from the transmitter to the receiver and auxiliary data are transmitted from the receiver to the transmitter (or from the transmitter to the receiver and also from receiver to the transmitter), a transmitter or receiver for use in such a system, and methods for sending auxiliary data and video data over such a link, synchronizing such auxiliary data with such video data, and generating clocks having frequency closely matching the rate at which the auxiliary data are transmitted. Typically, the auxiliary data include one or more streams of audio data. In some embodiments the transmitter transmits a video clock to the receiver over a video clock channel, at least one of the transmitter and receiver transmits at least one stream of auxiliary data to the other one of the transmitter and the receiver, and at least one of the transmitter and the receiver transmits over the video clock channel at least one auxiliary clock for the auxiliary data.

Method and apparatus for synchronizing auxiliary data and video data transmitted over a TMDS-like link

An image or other multi-dimensional data set may have its sampling rate changed by determining weighting factors for the values of points in the original (input) data set used to calculate the value of a point in the new (output) data set. The weighting factors are determined using a function, such as a Gaussian function, that takes as input the relative location of the point in the new data set with respect to the locations of surrounding (neighboring) points in the original data set. The values of the points in the original data set are multiplied by the weighting factors, and the resultant products are added (or combined by another function) to give a value of the point in the new data set. In particular, when the input and output data sets are regularly spaced, such as with pixels for computer displays, the locations of the surrounding points and thus their weights repeat periodically. This results in increased efficiency because the surrounding points and their weights need to be determined only for a subset of the output data set.

Scaling multi-dimensional signals using variable weighting factors

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Saratoga, CA, United States of America

Ken-Sue Tan