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:
May. 03, 1988
Filed:
Jan. 16, 1987
Aladino D Sorgi, San Diego, CA (US);
Jerry Zinkovich, Santee, CA (US);
Cubic Corporation, San Diego, CA (US);
Abstract
A DPCM video transmission system includes an encoder comprising a single PROM having as its inputs an input video signal and a feedback signal connected to the PROM via a digital latch clocked to produce one pixel delay in the signal. The PROM is preprogrammed with a table comprising all the possible DPCM encoded output signals and feedback signals for each possible pair of input signals according to the preselected quantization characteristics. Similarly, a decoder for receiving the compressed signal and reconverting it into an expanded video signal comprises a single PROM preprogrammed with a table of all the possible reconstructed values, the PROM having as its inputs the compressed signal and a delayed output signal coupled to the input via a latch clocked to produce one pixel delay in the signal. This technique can be used for any selected video signal length, quantization levels and associated ranges, as long as a PROM with sufficient storage capacity for the generated tables is available.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile