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. 08, 1998
Filed:
Aug. 31, 1995
Donald S Butler, Scottdale, AZ (US);
Richard S Amano, Scottdale, AZ (US);
General Instrument Corporation, Horsham, PA (US);
Abstract
A two dimensional video convolver generates visually acceptable images on a standard television receiver and includes first and second adder stages and two pixel time period delays. The first adder stage simultaneously receives binary data from three adjacent pixels in a predetermined line in a first direction of a picture to be reproduced on a display during each pixel scan period. The binary data of each of three pixels is processed with a predetermined weight to generate a binary first stage output signal representative of a weighted sum of the plurality of the three pixels in the predetermined line. The second adder stage is responsive to the binary first adder stage output signal during a time period for each of three predetermined adjacent lines in a second orthogonal direction of a picture to be reproduced on a display. The second adder stage processes the binary weighted sum of each of the three lines with a predetermined weight to generate a video convolver output signal representative of a weighted sum of the three pixels in a first direction over three adjacent lines in a second orthogonal direction. Weighting is accomplished in the first and second adder stages by using binary data bits for a pixel as received when the weight for that pixel is a numerical one, and by shifting the received binary data bits by a predetermined number of y bits in a first direction to provide a multiply function when a respective weight is greater than one and equals 2.sup.y.