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:
Dec. 19, 2000
Filed:
May. 19, 1999
Applicant:
Inventor:
Hiroki Kobayashi, Fukushima-ken, JP;
Assignee:
Alps Electric Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
330302 ; 330306 ; 4551881 ; 4551801 ; 455318 ;
Abstract
A buffer amplifier to be connected to an oscillator for outputting an oscillation signal, comprising an amplifier circuit for amplifying the level of the oscillation signal and frequency selective means connected to the output terminal of the amplifier circuit, wherein the fundamental harmonic or the secondary higher harmonic of the oscillation signal is outputted by switching the frequency selective means.