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. 30, 2018
Filed:
Mar. 02, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yoichi Kawano, Setagaya, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A semiconductor integrated circuit includes a harmonic oscillator circuit, a first switch circuit configured to cause an oscillating state of the harmonic oscillator circuit to switch between an 'on' state and an 'off' state, a detector circuit configured to produce a voltage responsive to an amplitude of the oscillating output of the harmonic oscillator circuit, a decision circuit configured to detect whether the voltage produced by the detector circuit exceeds a threshold in synchronization with a clock signal, and a second switch circuit configured to control whether or not to apply noise from a noise source to the harmonic oscillator circuit.