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. 12, 1982
Filed:
Jul. 30, 1980
Applicant:
Inventor:
Lawrence P Madson, Littleton, CO (US);
Assignee:
Technicare Corporation, Solon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358140 ; 73618 ; 358112 ; 358138 ; 364515 ;
Abstract
Encoded data is sequentially read into a shift register having a number of stages larger than the largest inter-scan 'void' or 'hole' to be filled. A priority encoder determines the length of the void to be filled, and the amplitude difference of successive scan data samples is evaluated. For each display picture element in the void, a weighting select PROM determines an appropriate weighting factor, based on the size of the void to be filled. Separate positive differential and negative differential memories are thereby energized to produce, for each display picture element in the hole, a simulated display picture data element.