Invention Grant
- Patent Title: Video camera with major functions implemented in host software
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Application No.: US09861279Application Date: 2001-05-18
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Publication No.: US06995794B2Publication Date: 2006-02-07
- Inventor: Mark Hsu , Mitchell Norcross , Georges Auberger , Remy Zimmermann , Sergio Maggi , George Sanchez , Bryed Billerbeck , Wei Li , Jean-Michel Junien Labrousse
- Applicant: Mark Hsu , Mitchell Norcross , Georges Auberger , Remy Zimmermann , Sergio Maggi , George Sanchez , Bryed Billerbeck , Wei Li , Jean-Michel Junien Labrousse
- Applicant Address: CH Romanel-sur-Morges
- Assignee: Logitech Europe S.A.
- Current Assignee: Logitech Europe S.A.
- Current Assignee Address: CH Romanel-sur-Morges
- Agency: Townsend and Townsend and Crew, LLP
- Priority: TW89112841A 20001228
- Main IPC: H04N5/217
- IPC: H04N5/217 ; H04N9/64

Abstract:
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.
Public/Granted literature
- US20020039139A1 Video camera with major functions implemented in host software Public/Granted day:2002-04-04
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