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:
Dec. 19, 1989
Filed:
May. 16, 1988
Alfonse A Acampora, Staten Island, NY (US);
Richard M Bunting, Robbinsville, NJ (US);
General Electric Company, Schenectady, NY (US);
Abstract
In a DPCM video digital data communication system each scan line of a video frame is refreshed with PCM data over a refresh cycle comprising a plurality of frames. Refresh generators at the transmitter and at the receiver are synchronized with an initialization signal and then run asynchronously to select scan lines for refresh. The refresh generators each employ counters for counting a selected number M, which has no factors in common with the number of scan lines of a frame, to select scan lines for refresh which have respectively different spatial positions in adjacent frames to avoid generating visible refresh artifacts. The number of frames in a refresh cycle is adaptively changed to stabilize the fill of the transmitter rate buffer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile