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. 24, 2009
Filed:
Aug. 05, 2005
Fumio Futami, Kawasaki, JP;
Shigeki Watanabe, Kawasaki, JP;
Fumio Futami, Kawasaki, JP;
Shigeki Watanabe, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
A clock extracting apparatus arranges bit intervals of a signal light train incident on a signal light processing section to have uneven periods, makes bit intervals between a predetermined signal light and signal lights adjacent to the predetermined signal light to be longer than a switching time of an electro-optical gate, selectively demultiplexes the predetermined signal light using the electro-optical gate, and extracts a clock synchronized with the signal light train from the demultiplexed signal light. Thus, it becomes possible to extract a clock synchronized with an ultra-high speed from a signal light train.