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:
Apr. 30, 1996
Filed:
Sep. 14, 1993
Applicant:
Inventor:
Ashok K Rao, Germantown, MD (US);
Assignee:
Comsat Corporation, Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ; H04J / ;
U.S. Cl.
CPC ...
3645 / ; 348384 ; 348394 ; 370118 ;
Abstract
A method for compressing a multi-spectral data stream corresponding to an image for a selected one of transmission, as a limited bandwidth transmission using a predetermined band, and data storage includes steps for dividing the image into pixel blocks P in each of N bands, where both P and N are integers greater than one, selecting one of pixel blocks in one of N bands as an anchor band and computing prediction coefficients for relating intensities of each pixel in each P pixel block in the remaining N-1 bands based on the anchor band. A codec apparatus is also described.