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:
Aug. 28, 2012
Filed:
Aug. 27, 2010
Nobuo Karaki, Matsumoto, JP;
Nobuo Karaki, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A time correction circuit includes: a time-measurement device that measures a time period; a receiver device that receives electromagnetic wave based on a first baseband signal, the first baseband signal including time information concerning time and being encoded by a pulse width modulation method, and outputs a second baseband signal based on the electromagnetic wave received; and an asynchronous circuit that corrects the time based on the second baseband signal, wherein the asynchronous circuit executes a specified process to retrieve the time information from the second baseband signal based on the time period measured, at least one of when the second baseband signal changes from high level to low level and when the second baseband signal changes from low level to high level, and assumes a standby state after executing the specified process.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile