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:
Aug. 20, 2002
Filed:
Mar. 26, 2001
Kazuo Kato, Tokai-mura, JP;
Takashi Sase, Hitachi, JP;
Takashi Hotta, Hitachi, JP;
Fumio Murabayashi, Urizura-machi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A waveform shaping circuit is provided so that the duty factor of clock pulses can be set to 50% with high accuracy even if the clock pulses are of a low voltage and a high frequency. An inverter which receives the clock pulses through an alternating current coupling capacitor is provided with a non-linear limiter element for limiting an amplitude of an output symmetrically on positive and negative sides thereof. A first current-limiting impedance and a second current-limiting impedance are connected between a power supply side terminal of the inverter and a power supply bus and between a grounding side terminal of the inverter and a grounding bus, respectively.