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. 14, 1998
Filed:
Mar. 31, 1995
Hiroyasu Kuramatsu, Shizuoka, JP;
Kazuo Morita, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
A radio selective calling receiver which can improve the precision of a timepiece up to the clock precision of a reception signal from a base station is provided. A bit synchronization section establishes bit synchronization of a digital signal from a reception section to output a reproduction clock. A frequency divider for a timepiece function frequency-divides a reference clock with insufficient precision, which is supplied from a reference clock generation section, by a fixed value while the digital signal is in a frame step-out state. While the digital signal is in a frame synchronized state, the frequency divider variably frequency-divides the reference clock by using a phase correction signal for correcting an internal phase advance/delay, which is output from the bit synchronization section, thereby correcting a gain/loss in time displayed on a display section.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile