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. 30, 2024
Filed:
Apr. 17, 2019
Applicant:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Inventors:
Kenji Tanaka, Tokyo, JP;
Naoki Miura, Tokyo, JP;
Shinsuke Nakano, Tokyo, JP;
Hideyuki Nosaka, Tokyo, JP;
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/10 (2006.01); G06F 1/06 (2006.01); H03F 1/22 (2006.01); H03F 3/08 (2006.01); H03K 3/42 (2006.01);
U.S. Cl.
CPC ...
G06F 1/10 (2013.01); G06F 1/06 (2013.01); H03F 3/08 (2013.01); H03F 1/223 (2013.01); H03F 3/082 (2013.01); H03K 3/42 (2013.01);
Abstract
A clock generation circuit includes a mode-locked laser that generates an optical pulse, a photodiode that photoelectrically converts the optical pulse generated by the mode-locked laser, and a filter that attenuates at least one of a DC component and a harmonic component of the mode-locked laser included in an electric signal output from the photodiode.