Method and apparatus for draining video data from a planarized v

Details Method and apparatus for draining video data from a planarized v Method and apparatus for draining video data from a planarized v

1996-12-23

1999-11-09

Garber, Wendy

Television

Camera, system and detail

Combined image signal generator and general image signal...

348281, 348714, 348717, H04N 576, H04N 314, H04N 964

Patent

active

059824255

ABSTRACT:
A method and apparatus for draining video data from a planarized video buffer in a video camera. The method includes the steps of reading a first sequence of video data from a first plane of the planarized image buffer starting at a buffer address indicated by a first pointer, and then reading a second sequence of video data from a second plane of the planarized image buffer starting at a buffer address indicated by a second read pointer. The apparatus includes an address generation unit and a sequence counter. The address generation unit includes a number of read pointers each configured to indicate a memory location within a different data plane of a video buffer. The address unit is configured to address a sequence of memory locations in a video buffer starting at a location indicated by an active one of the read pointers. The sequence counter is configured to detect when a final memory location of the sequence of memory locations has been addressed by the address generation unit and, in response, to select a different one of the read pointers to be the active read pointer.

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patent: 5675383 (1997-10-01), Yagasaki et al.
patent: 5731852 (1998-03-01), Lee
patent: 5748829 (1998-05-01), Yamamoto et al.

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