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:
Sep. 02, 1997
Hiroaki Ueda, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
Processing is carried out assuming that a picture structure is fixed to I picture and P picture and that motion compensation value is fixed. Header analyzing section 11 identifies the type of picture of input video code in case of P picture, IDCT section 14 carries out IDCT to calculate a differential value of each block. An adder 15 adds the differential value and a motion compensated block obtained by motion compensating, by forward prediction section 18, a video code of preceding frame stored in a preceding frame section 16. Thus, an image is expanded and reproduced. By fixing the picture structure to I picture and P picture, it is possible to dispense with judgement whether or not the picture is B picture and backward prediction or bidirectional prediction in processing of the B picture.