The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1989
Filed:
Jul. 29, 1986
Applicant:
Inventor:
Michael F Deering, Mountain View, CA (US);
Assignee:
Schlumberger Systems and Services, Inc., Sunnyvale, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358160 ; 358 / ; 358280 ; 358903 ;
Abstract
A video stream processing system frame buffer controller for controlling external dynamic random access memory (DRAM) of a frame buffer and interfacing to the video stream processing signal bus. The frame buffer controller has four interfaces, video input interface, video output interface, memory interface and processor interface. The circuit can input image data from a camera and store the frames in external DRAM. The circuit provides for external processor access to pixels in the frame buffer and for output of the frame or portions of the frame, as well as output of frames in a format of CRT display and external DRAM refresh.