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. 25, 2014
Filed:
May. 02, 2012
Katsuyoshi Terasawa, Shiojiri, JP;
Katsuyoshi Terasawa, Shiojiri, JP;
Seiko Epson Corporation, , JP;
Abstract
A temperature-compensated oscillator includes a temperature sensor, a temperature compensation circuit, a voltage-controlled oscillation circuit adapted to output an oscillation signal on which temperature compensation is performed based on the temperature compensation voltage, an output circuit adapted to output an ON/OFF signal based on a relationship between variation of the detected-temperature voltage output by the temperature sensor and a reference voltage, a switch circuit adapted to supply the temperature compensation circuit with electrical power in response to the ON/OFF signal, and a sample-and-hold circuit adapted to be switched between a state of outputting the temperature compensation voltage to the voltage-controlled oscillation circuit while holding the temperature compensation voltage output by the temperature compensation circuit, and a state of outputting the temperature compensation voltage held to the voltage-controlled oscillation circuit while cutting the connection to the temperature compensation circuit in response to the ON/OFF signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile