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:
Nov. 11, 2008
Filed:
May. 11, 2005
Chueh-hao Yu, Hsinchu, TW;
Li-ren Huang, Hsinchu, TW;
Chueh-hao Yu, Hsinchu, TW;
Li-Ren Huang, Hsinchu, TW;
Industrial Technology Research Institute, Hsinch, TW;
Abstract
A clock and data recovery apparatus and the method thereof are applied for burst mode clock and data recovery (CDR) in a passive optical network (PON). A phase-locked loop induces a first control signal and a first clock. A clock and data recovery circuit receives an incoming data having a first frequency and induces a second clock having one of second and third frequencies to sample the incoming data according to the second clock to obtain a recovered data, wherein the first frequency is between the second and third frequencies. Moreover, a controller induces a second control signal according to the incoming data (or the recovered data), the first clock, and the second clock to adjust the frequency of the second clock.