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:
Nov. 10, 2020
Filed:
Dec. 12, 2017
Canon Kabushiki Kaisha, Tokyo, JP;
Dixon De Sheng Deng, East Ryde, AU;
David Anthony Lawler, Cherrybrook, AU;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A method of transcoding a delta row encoded image by: receiving the delta row encoded image comprising terms comprising an offset and replacement bytes for each changed portion to the exclusion of storing unchanged portions; subdividing the delta row encoded image into a plurality of delta row encoded tiles based on predetermined tile boundaries; determining, for a row of the delta row encoded image, terms comprising a tile offset and replacement bytes for each changed portion within a delta row encoded tile the tile offsets and the replacement bytes being determined to allow for independent processing of the differentially encoded tiles; determining edges within each of the delta row encoded tiles based on the determined tile offsets, bypassing an edge detection process for unchanged portions of the differentially encoded tile; and transcoding the delta row encoded image by encoding the identified edges.