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:
Mar. 28, 1989
Filed:
Nov. 16, 1987
Kevin Harney, Brooklyn, NY (US);
John M Keith, Washington Crossing, PA (US);
David L Sprague, Hopewell, NJ (US);
Brian Astle, Cranbury, NJ (US);
Technology, Inc., 64, Princeton, NJ (US);
Abstract
A processor for expanding a compressed video signal includes a pixel interpolator which interpolates between input pixel values in two dimensions. This interpolator calculates and stores intermediate pixel values which are interpolated in the vertical direction. A pair of these intermediate pixel values are then fed back into the interpolator which performs a horizontal interpolation to produce pixel values that are interpolated in both the horizontal and vertical dimensions. In steady state operation, the horizontal and vertical interpolation operations are alternated to produce a stream of two-dimensionally interpolated values.