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:
Jun. 09, 1981
Filed:
Nov. 22, 1978
Shinji Morozumi, Suwa, JP;
Tatsushi Asakawa, Suwa, JP;
Kabushiki Kaisha Suwa Seikosha, Tokyo, JP;
Abstract
A semiconductor temperature compensation circuit for an electronic timepiece is provided. The temperature compensation circuit is characterized by a temperature detection circuit comprised of MOS transistors, at least two of which have distinct conductive coefficients for producing signals representative of variations in ambient temperature and a temperature signal converting means including MOS transistors for converting the temperature dependent signal into a temperature compensation value for effecting timing rate adjustment in an electronic timepiece. The temperature detection circuit and the temperature signal converter circuit are both formed of elements that can be monolithically integrated into the same substrate.