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:
Jun. 05, 2007
Filed:
Jun. 25, 2001
Jerrell P. Hein, Driftwood, TX (US);
Michael H. Perrott, Somerville, MA (US);
Jerrell P. Hein, Driftwood, TX (US);
Michael H. Perrott, Somerville, MA (US);
Silicon Laboratories Inc., Austin, TX (US);
Abstract
In a clock recovery circuit, the output clock from a voltage controlled oscillator is delayed and then provided to a phase detector circuit that generates a difference signal indicating the phase difference between an incoming data stream and the delayed output clock. A loop filter circuit receives the difference signal and supplies a control signal to the oscillator circuit, which varies the output clock according to the control signal. A delay clock circuit receives a delay control signal derived from the difference signal to determine the output clock delay.