Ati International Srl

James B Fry

Michael G Frank

Gordon Caruk

Kuldip Sahdra

Marinko Karanovic

Sasa Marinkovic

Arkadi Avrukin

Jamil Ahmed

A configurable bus interface circuit includes an internal bus bridge and an internal circuit. The configurable bus interface circuit also includes an internal I/O circuit couplable to an external circuit, via the internal bus bridge. The configurable bus interface circuit electrically isolates the internal circuit to avoid the propagation of signals between the internal I/O circuit and the external circuit.

Method and apparatus for configuring an integrated bus

A method and apparatus for performing scaling functions on a video signal is presented, where the scaling functions include a change in data rate of the signal. This is accomplished by performing the data rate conversion within a horizontal scaler of a video decoder. Filtering operations in the horizontal scaler are adjusted in order to take advantage of the data rate differential. Qualifier signals accompany portions of the video signal to indicate whether or not a particular portion of the signal is valid. These qualifiers are interpreted within the circuit to identify the portions that should be dropped, and the portions to be included in the output signal. In addition, registers within the horizontal scaler are used to store data corresponding to blanking regions within the input video signal, where data included in these blanking regions must be passed to the output signal in its entirety. The qualifiers corresponding to this portion of the data stream are all set to the valid level, indicating that none of the blanking region data is to be discarded.

Configurable horizontal scaler for video decoding and method therefore

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Newmarket, Canada

James B Fry