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:
Sep. 11, 2001
Filed:
Jul. 17, 1998
Mitsuhiro Miyashita, Nishinomiya, JP;
Tatsushi Bannai, Sakai, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
In a recording and reproducing apparatus with image coding for compression coding of digital video signals and for recording and reproducing the compressed code, digital video signals are divided on a screen into coding blocks which are overlapped so as to share boundary pixels. DCT coefficient data in each coding block are divided into a plurality of groups, and coefficient data in two coding blocks overlapping on the screen are recorded to separate regions on a recording medium. When an error has occurred during a reproducing process, the state of the error occurrence is analyzed and an error correction responsive to the state of error occurrence is performed on coefficient data that has been lost due to the error. Thus, a stable, successful reproduced image can be obtained even if an error occurs during the recording and reproducing process.