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. 16, 1997
Filed:
Dec. 06, 1995
Maher Nihad Fahmi, Vancouver, CA;
John Richard Bradshaw, Burnaby, CA;
PMC-Sierra, Inc., , CA;
Abstract
A device for identifying cells as either conforming or non-conforming in a cell-based transmission system, which includes an n-bit word-length counter having an input coupled to a source of clock pulses, a parallel n-word gate coupled to a parallel output of the n-bit word length counter and having a gate input coupled to a source of cell arrival signals. A processor is coupled to an output of gate having a first comparer for comparing TAT and t.sub.a (k), a second comparer for comparing t.sub.a (k)[n-1] with zero and t.sub.a (k-1)[n-1] with 1, a setting device for setting TAT=t.sub.a (k) in the event that either of the comparisons in the first and second comparers are true. A third comparer is provided for comparing TAT and t.sub.a (k)+L and if TAT is less than or equal to t.sub.a (k)+L, an indexing device for indexing TAT by I and declaring the cell conforming, and an output device for declaring the cell non-conforming if TAT is greater than t.sub.a (k)+L.