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:
Mar. 23, 1982
Filed:
Feb. 01, 1980
Maurice G Lemoine, Redwood City, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
A method and apparatus for detecting errors in the accuracy of multi-bit data words, i.e., a parity method and apparatus, is disclosed. The invention is intended for use in determining the accuracy of multi-bit data words that are being transmitted through a communication channel or are being recorded and reproduced using magnetic recording or other technique. One embodiment of the invention involves examining at least three significant bits in at least three successive words and generating parity bits with predetermined logical states determined by the content of the examined significant bits and combining one of the parity bits with each of the data words for transmission or recording and subsequently examining the data words and parity bits upon receipt and generating an error signal for the data words when one of the parity bits combined with the examined data words has a logical state other than that that would have been transmitted or recorded if determined by the original content of the received data words.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile