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. 01, 1987
Filed:
Feb. 07, 1986
Arthur H Khu, San Mateo, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
Methods are set forth for constructing encoding and decoding state machines for preselected variable length fixed rate (2,7) codes. These state machines convert a variable length code to a state dependent fixed length fixed rate (2,7) code. Methods and apparatus are also disclosed for implementing a state dependent fixed length fixed rate (2,7) coding scheme in a manner that is simpler and inherently more reliable than the implementation of the corresponding variable length fixed rate (2,7) code. In addition, the disclosed methods and apparatus for implementing the state dependent code preserve the error recovery features of a variable length fixed rate (2,7) coding scheme.