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:
Apr. 17, 2018
Filed:
Jan. 31, 2017
Finisar Corporation, Sunnyvale, CA (US);
The'Linh Nguyen, San Jose, CA (US);
Finisar Corporation, Sunnyvale, CA (US);
Abstract
A decision-directed phase detector (DDPD) to compare an input signal including clock and data components with a reference signal set to a clock crossover value, and generate a first compared output signal designating a transition of the input signal through the clock crossover value. The DDPD may also receive the first compared output signal and generate a phase adjustment signal, and compare the input signal with the reference signal set to a positive offset clock crossover value of the clock crossover value offset by a positive offset value, and generate a positive offset compared output signal designating a transition of the input signal through the positive offset clock crossover value. The DDPD may further generate a valid transition signal to route the phase adjustment signal to a clock generation circuit when the positive offset compared output signal transitions over a clock period.