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:
Jul. 20, 1999
Filed:
Dec. 20, 1996
Applicant:
Inventors:
Chao-Kung Yang, Huntington Beach, CA (US);
Jim C Williams, Anaheim, CA (US);
Stanley Krutsick, Fullerton, CA (US);
Assignee:
Hughes Electronics Corporation, El Segundo, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
386112 ; 348397 ;
Abstract
A machine independent high resolution digital screen recorder provides high quality video displays with manageable storage capacity and bandwidth. The screen recorder includes an analog to digital frame grabber for converting the high resolution video signal that modulates a video display into RGB sequences of digital frames. A video compression unit separates the high and low variance portions of the digital frames, encodes them with respective lossy and lossless compression algorithms and stores them in a mass storage device.