S3 Incorporated, Inc.

Waytech Investment Co. Ltd.

Seng-Khoon Tng

Francisco Leonel Duran

Inging Yang

Jungtai Jason Lin

Winston Tsai

Multi-bit data signals are digitally switched between input and output endpoints for simultaneously interconnecting various sets of inputs and output endpoints. Single input may send data to single endpoint, or single input may send data to multiple output endpoints. Multiple bitwidth (b) data is serialized to single bitwidth at high data rate using N-by-1 multiplexer. Loadable barrel shifters shift serial data, so same data is used by multiple output endpoints at different times.

Method and apparatus for efficient and flexible routing between multiple high bit-width endpoints

A method and apparatus for processing pulse code modulation (PCM) data that do not reach the full dynamic range of a transmission bus. The method and apparatus provide an output processed PCM data having the maximum peak signal allowable by a transmission bus. The output signal limitation is also dependent on a sampling or recording frequency of input signals. In view of the sampling or recording frequency, the invention scales the processing of the PCM data accordingly.

Method and system for real-time processing of the recorded PCM data to get the desired full-scale range of values

An analog joystick interface system for overcoming the deficiencies of the conventional analog joystick interface by supporting positional tracking in both a legacy and an enhanced mode. In the legacy mode, the host calculates the relative physical orientation of a positional grip of an analog joystick by relying upon continuous polling techniques. In the enhanced mode, a watch dog timer relieves the host of the need to continuously poll by directly providing the host with positional data concerning the relative physical orientation of the positional grip. The ability of the joystick interface to provide both the legacy and enhanced modes ensures that compability issues concerning the legacy DOS-based software applications and CPU allocation problems associated with continuous polling are resolved without considerably increasing cost or complexity of the joystick interface.

Multiple mode analog joystick interface

A data stream accessed in a sequential manner is stored in a plurality of pages in a main memory of a computer system. The pages are contiguous in virtual memory but not in physical memory. The page address translation entry needed to translate the virtual address of a next page into a physical address is embedded in the current page of the data stream. A peripheral processor coupled to the main memory by a bus accesses the data stream by reading the page address translation entry of the first page of the data stream, reading the page addressed by the physical address resulting from the page address translation entry, obtaining the next page address translation entry by extracting it from the current page without performing a read operation of the bus, and reading the next page addressed by the physical address resulting from the extracted page address translation entry.

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Sunnyvale, CA, United States of America

Seng-Khoon Tng