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:
May. 15, 2001

Filed:

Jun. 10, 1999
Applicant:
Inventors:

Yasuhiko Hirano, Ishikawa-ken, JP;

Tsutomu Ieki, Kyoto, JP;

Hiroaki Tanaka, Osaka-fu, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/30 ; H03B 5/31 ; H03L 1/00 ;
U.S. Cl.
CPC ...
H03B 5/30 ; H03B 5/31 ; H03L 1/00 ;
Abstract

An oscillator module in which external wires can be reduced, and characteristics of a resonator and oscillation margin can be measured. A circuit portion for oscillation and a two-port surface acoustic wave resonator are sealed in a package, one of the terminals of the two-port surface acoustic wave resonator is connected inside the package to an input terminal of the circuit portion for oscillation. The number of external terminals provided at the package is reduced, enabling the oscillator module to be made small-scale and at lower cost. Furthermore, it is possible to measure the insertion loss and resonant frequency of the two-port surface acoustic wave resonator, and the oscillation margin of the oscillator module, making it possible to improve the yield of the oscillator and reduce costs.


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