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:
Mar. 03, 2015
Filed:
Nov. 22, 2013
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Shinichi Koazechi, Kanagawa, JP;
Tatsufumi Kurokawa, Kanagawa, JP;
Renesas Electronics Corporation, Kanagawa, JP;
Abstract
An integrated circuit device contains two oscillators to generate a first clock signal and a second clock signal. Along with comparing the frequencies of the first clock signal and the second clock signal, the integrated circuit device is configured to monitor whether or not each frequency is within the frequency tolerance range. The integrated circuit device selects an output clock signal from either of the first clock signal or the second clock signal according to results from comparing the frequencies of the first clock signal and the second clock signal and whether or not each of the first clock signal and the second clock signal are within the frequency tolerance range.