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. 23, 2005
Filed:
Jul. 09, 2003
Fumiaki Miyahara, Shiojiri, JP;
Kunio Koike, Matsumoto, JP;
Takashi Kawaguchi, Shiojiri, JP;
Shinji Nakamiya, Matsumoto, JP;
Fumiaki Miyahara, Shiojiri, JP;
Kunio Koike, Matsumoto, JP;
Takashi Kawaguchi, Shiojiri, JP;
Shinji Nakamiya, Matsumoto, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
This oscillation circuit includes a crystal oscillator and a main circuit portion connected by a signal path to the crystal oscillator and driven by the crystal oscillator. The main circuit portion is provided with a DC-cutting capacitor that galvanically separates the signal path between the input side of an inverter that is connected by the signal path to the crystal oscillator and an input terminal Xin of the signal path. A potential stabilization circuit is also provided, connecting the input terminal Xin of the signal path to the output side of the inverter through a resistance element.