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:
Jun. 05, 1990
Filed:
Nov. 14, 1988
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
An integrated circuit for a CD player includes an EFM decoder which converts an EFM signal inputted from a compact disc into symbols. Subcode data which includes first, second and third areas is outputted from the EFM decoder and stored in a first shift register. Data in the first area of the subcodes can be wholly stored in a memory circuit which is controlled on the basis of data in the second area of the subcodes and a signal applied from an external source, for example, a microcomputer by an R/W control circuit. Data in the third area of the subcodes is applied to the memory circuit as a writing address and address data inputted from the microcomputer is applied to the memory circuit as a reading address. One of data read from the memory circuit and data of the subcodes is selectively outputted from a selector to a second shift register which outputs the inputted data in response to clocks from the microcomputer to the same in a bit-serial fashion.