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. 15, 1997
Filed:
Feb. 14, 1995
Shin-ichiro Tomisawa, Gifu, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A CD-ROM decoder provides error correction for header data of digital data read out from a ROM disc. Address information contained in the header data of the read out digital data is stored in an address information register 31. An adder 32 adds a value '1' to a value of the address information stored in the register 31. The added value is stored in the final address information register 33 at timing delayed by one frame. A comparison circuit 35 compares the two data stored in the registers 31 and 32, respectively, and detects an error based on lack of coincidence between the two data values. When an error is detected, a selection circuit 34 selects and output address data stored in the final address information register 33.