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. 03, 2012
Filed:
Jul. 20, 2007
Yusuke Ohtomo, Tokyo, JP;
Jun Terada, Tokyo, JP;
Kazuyoshi Nishimura, Tokyo, JP;
Keiji Kishine, Tokyo, JP;
Yusuke Ohtomo, Tokyo, JP;
Jun Terada, Tokyo, JP;
Kazuyoshi Nishimura, Tokyo, JP;
Keiji Kishine, Tokyo, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A clock/data recovery circuit includes a data duty correction circuit which outputs corrected data by correcting the duty of input data in accordance with the level of a correction signal, a clock recovery circuit which generates a recovered clock in synchronism with the edge timing of the corrected data, a data decision circuit which performs data decision of the corrected data based on the recovered clock, and a data duty detection circuit which detects the duty of the corrected data based on the recovered clock and outputs the correction signal representing a duty correction amount to the data duty correction circuit.