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:
Jan. 03, 2012
Filed:
Mar. 21, 2008
Kaoru Someya, Kiyose, JP;
Kaoru Someya, Kiyose, JP;
Casio Computer Co., Ltd., Tokyo, JP;
Abstract
A standard time and frequency signal receiver receives a time code in which a plurality of data pulses '1', '0' and “P” which are identified by width are arranged one in a respective one of unit periods of the standard signal. An amplitude of a detected signal of the time code is sampled with respect to a seconds synchronization point in a unit period. Then, correlation values F1, F0 and FP for the data pulses “P”, “1” and “0”, respectively, are calculated based on the sampled values. These correlation values F1, F0 and FP are then compared to determine the data pulse received. Even when the time code contains a considerable noise, which of the “1”, “0” and “P” signals was received is determined accurately, thereby achieving the reception of the time code with a reduced error.