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. 05, 2013
Filed:
Mar. 17, 2008
Jonathan Ku, San Jose, CA (US);
Sen-jung Wei, San Jose, CA (US);
Jonathan Ku, San Jose, CA (US);
Sen-Jung Wei, San Jose, CA (US);
Synaptics, Inc., Santa Clara, CA (US);
Abstract
An output clock recovery circuit () for recovering an output clock () from a source clock () and time stamp information (A,B) includes a time stamp translator () and a phase-locked loop circuit () including a fraction processor (). The time stamp translator () receives the time stamp information (A,B) and uses an algorithm that translates the time stamp information (A,B) into a time stamp decimal component () and a time stamp integer component (). The time stamp decimal component () is less than one and is processed by the fraction processor (). The time stamp integer component () is maintained within a predetermined range of integers that are greater than zero. The output of the fraction processor () and the time stamp integer component () can be input into a feedback divider () of a feedback loop of the phase-locked loop circuit () to recover the output clock (). The fraction processor () can include a fraction accumulator or a delta-sigma type of fractional-N phase-locked loop circuit.