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:
Aug. 28, 2007
Filed:
Mar. 04, 2002
Afshin Momtaz, Irvine, CA (US);
Pang-cheng Hsu, Torrance, CA (US);
Afshin Momtaz, Irvine, CA (US);
Pang-Cheng Hsu, Torrance, CA (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
Methods and circuitry for implementing high speed loss-of-signal detectors for use in Gb/s telecommunication applications. The invention measures bit error rate (BER) of the incoming data by comparing the phase of the clock signal extracted from the incoming data with that of a delayed version of the incoming data. The results of this comparison are averaged over time to arrive at the BER. The measured BER is compared to a predetermined threshold value to detect a loss-of-signal condition. The invention adjusts the amount of delay of the incoming data in such a manner as to minimize the capacitive loading on the data line and clock line introduced by the loss-of-signal circuitry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile