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:
Jun. 08, 1999
Filed:
Nov. 14, 1994
James Robert Whittaker, Kings Langley, GB;
VideoLogic Limited, Hertfordshire, GB;
Abstract
A raster scanned image may be scaled up or down for display on e.g. a portion of a computer display. This is achieved by dividing the image into a plurality of image cells each with a horizontal width less than that of the whole image. A smoothing algorithm is then applied to the lines of each cell in turn to generate new pixel data in dependence on the scaling operation to be performed. The scaling means stores a number of lines of data from a cell the number being dependent on the particular smoothing algorithm being used. To facilitate scanning of the image cell structure additional sync pulses are generated. These are cell horizontal and cell vertical sync pulses.