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:
Jan. 18, 1994
Filed:
Jun. 14, 1991
Miguel M Blaum, San Jose, CA (US);
Jehoshua Bruck, Palo Alto, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An algorithm for a (t.sub.1,t.sub.2)-detecting code, and a method and apparatus for decoding same, for detecting skewed transitions in a parallel asynchronous communication system without acknowledgement. Transitions sent at the same time in a parallel channel may arrive at different times, but the algorithm permits a limited degree of variation in transmission speeds between channels. A desired control operation will be initiated whenever a skewed transition occurs. The code will detect up to t.sub.1 or t.sub.2 skewed transitions. The values of t.sub.1 or t.sub.2 for the algorithm are preselected by the user. t.sub.1 is the maximum number of transitions that may be missing from a first transmitted codeword when a transition arrives from a second transmitted codeword, and t.sub.2 is the maximum number of transitions from the second codeword that may arrive before all transitions of the first codeword arrive.