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:
Jul. 07, 2015
Filed:
Jan. 07, 2014
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Win Chaivipas, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A receiver circuit includes: a data interpolation switched capacitor circuit which samples a data signal and outputs a voltage value interpolated from a sampled voltage value in correspondence with an interpolation code indicating an interpolation ratio; a comparator which performs comparison between the voltage value outputted from the data interpolation switched capacitor circuit and a threshold value; a phase detection circuit which detects a boundary based on an output of the comparator and decides whether to advance or delay a phase; and an interpolation code generation circuit which generates an interpolation code corresponding to an output of the phase detection circuit, wherein a phase offset related to sampling is imparted and an offset corresponding to an amount of the phase offset is imparted to the threshold value of the comparator.