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:
Apr. 28, 1998
Filed:
Nov. 29, 1996
Ryuji Yasukohchi, Tokyo, JP;
Akio Uesugi, Tokyo, JP;
Masaki Sato, Tokyo, JP;
Hiroshi Nishikawa, Kawasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A recording and reproducing apparatus and method which prevents or manages a data loss caused by each of seek operations in recording/reproducing a time-series digital data set, to/from a disk recording media via a buffer. Before recording/reproducing, a check is made, by using a rate of data transfer with the outside, of a data transfer rate in an access to a track where each of the selected sectors lies, and of a seek time for each of changes in tracks, to see if the buffer will overflow/underflow during the period of recording/reproducing. If so, then an input/output data transfer rate is reduced before recording/reproducing to make the check. In case of recording, if there is at least a substitute for a sector which will cause the overflow, the sector is changed to a substitute.