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.

Date of Patent:
Aug. 28, 1984

Filed:

Nov. 17, 1981
Applicant:
Inventors:

Michiaki Takagi, Suwa, JP;

Eishi Momosaki, Suwa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B / ; H03B / ;
U.S. Cl.
CPC ...
331 60 ; 331 66 ; 331158 ; 331176 ; 331D / ; 374163 ;
Abstract

An oscillator circuit for simultaneously outputting two frequency signals comprises a single resonator vibrating in two modes at different frequencies, an amplitude modulating circuit for modulating one of said two frequencies with a third frequency, a feedback circuit receiving the output of the amplitude modulating circuit, a detector demodulating the amplitude modulated signal, the demodulated signal being the third frequency used to modulate the output of the resonator. The two frequencies of the resonator are close together in value and the third frequency signal is the difference in frequency of the two resonator outputs. Circuit outputs are one resonator frequency and the difference frequency.


Find Patent Forward Citations

Takagi, Michiaki. (1984). Crystal oscillator producing two frequencies by means of amplitude (U.S. Patent No. 4468634). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4468634

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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