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:
Nov. 30, 1976
Filed:
Nov. 27, 1974
Applicant:
Inventor:
Toshihiko Waku, Tokyo, JA;
Assignee:
Sony Corporation, Tokyo, JA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ; H03C / ;
U.S. Cl.
CPC ...
3311 / ; 331176 ; 3311 / ; 332 26 ; 332 / ;
Abstract
A temperature compensated variable oscillator formed of at least two capacitors and a resonator, or vibrator, made of lithium tantalate, in which an inductance element whose inductance value can be varied is connected in series to the vibrator; the capacitance of one of said capacitors is changed linearly in response to temperature variations, and the capacitance of the other capacitor is changed in response to temperature variations, in accordance with a second order relationship between capacitance and temperature, the graphical representation of such relationship being a second degree curve opening upward.