Logitech Europe S.a.

Mitchell Norcross

Sergio Maggi

Wei Li

Remy Zimmermann

Bryed L Billerbeck

Mark Hsu

George Sanchez

Georges Auberger

Jean-Michel Junien Labrousse

A low cost camera by implementing the major functions in host software is provided. This is accomplished by sending raw, digitized data from the camera directly to the host. The increased volume of raw data is handled by either an improved compression/decompression scheme using lossless compression, using lossy compression or using a shared bus with higher bandwidth. By moving such functions as color processing and scaling to the host, the pixel correction can also be moved to the host. This in turn allows the elimination of the frame buffer memory from the camera. Finally, the camera can use a low cost lens by implementing vignetting, distortion, gamma or aliasing correction with a correction value stored in a register of the camera for later access by the host to perform corrections.

Video camera with major functions implemented in host software

New and improved methods and apparatus for transmitting data over a data bus. The invention provides a bus system including an external shared bus, an external bus interface, and a resource bus. The external bus interface can be configured to move data between the external shared bus and the resource bus. The bus system can also include a data processing pipeline coupled to the resource bus. The data processing pipeline can include a plurality of components for processing data. Some of the data processing components can be coupled to the resource bus.

Resource bus interface

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Harvard, MA, United States of America

Mitchell Norcross