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:
Jul. 06, 2010
Filed:
Oct. 24, 2007
Hitoshi Irino, Kanagawa, JP;
Hitoshi Irino, Kanagawa, JP;
NEC Electronics Corporation, Kawasaki, Kanagawa, JP;
Abstract
A semiconductor integrated circuit device provided with an input terminal supplied with a reference frequency signal from outside of the device, a bandpass filter circuit coupled to the input terminal and outputting an internal reference frequency signal and a PLL circuit coupled to the bandpass filter circuit to receive the internal reference frequency signal. The input terminal is supplied with the reference frequency signal generated by a quartz oscillator or the like mounted on the exterior of the semiconductor integrated circuit device. In response to the signal supplied to the input terminal, the bandpass filter circuit restricts components in a bandwidth except for the frequency of the reference frequency signal, and thus supplies the reference signal to the PLL circuit. The PLL circuit operates by using the reference frequency signal as the reference signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile