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:
Oct. 25, 2005
Filed:
Oct. 25, 2000
Takahiro Ichikawa, Saitama, JP;
Takayuki Ishida, Kanagawa, JP;
Yoshinori Shimizu, Tokyo, JP;
Shigeharu Sato, Chiba, JP;
Kenji Ogawa, Tokyo, JP;
Takahiro Ichikawa, Saitama, JP;
Takayuki Ishida, Kanagawa, JP;
Yoshinori Shimizu, Tokyo, JP;
Shigeharu Sato, Chiba, JP;
Kenji Ogawa, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
A data reproduction apparatus and a data reproduction method can alleviate the workload of a special processing operation of fast forward or reverse data reproduction and improve the data access speed for fast reproduction of data. The data reproduction apparatus comprises an optical pickupfor reproducing data from an optical disk, a sector detectorfor detecting a first piece of data information indicating if a data is to be output as signal or not, a ring buffer memoryfor storing data, an error correction circuitfor correcting errors in the data to be output as signal as indicated by the first piece of data information out of the stored data, a stream detectorfor detecting a second piece of data information indicating the data to be out as signal out of the data corrected for errors, decodersfor decoding the data corrected for errors and stored in the ring buffer memoryas signal to be reproduced and a system controllerfor control the data to be decoded and the data not to be decoded by referring to the first piece of data information and the second piece of data information detected by a second data information detection means.