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. 29, 1980
Filed:
Mar. 07, 1978
Kenneth A Huelsman, Carlsbad, CA (US);
Hughes Aircraft Company, Culver City, CA (US);
Abstract
A method and apparatus for generating a pseudogaussian characteristic in the display of video information presented in digital form from a read-write memory that is continuously updated as the scan input requires, and read out one line at a time, preferably with conventional TV fields of odd and even interlaced lines. Picture elements (pixels) of each line L read for display are summed with a predetermined fraction of the sum of the values of corresponding pixels of adjacent lines L-1 and L+1, thus forming a vertical pseudogaussian calculation for the pixels of line L. Horizontal pseudogaussian calculation of the pixels is then performed in a similar manner using two pixel delay elements connected in cascade and connected to an adder to presum values of pixels P-1 and and P+1 as an input to a second adder which sums the output of the first adder, divided by a predetermined value, with the value of pixel P.