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:
Feb. 18, 2003
Filed:
Mar. 01, 2000
Yoshiyuki Mashimo, Komatsu, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Abstract
A frequency-switching oscillator has an oscillating circuit and a buffer circuit, wherein a matching circuit has a diode. The anode of the diode can be switched to be of a first potential and a second potential which is higher than the first potential. The cathode of the diode is set to a value of a third potential which is higher than the first potential by a certain level and is lower than the second potential by more than a switch voltage of the diode. Corresponding to switching of oscillation frequencies by a oscillating circuit, the frequency-switching oscillator allows frequencies matched in the buffer circuit to be switched and outputs frequencies of substantially the same levels for any of the oscillation frequencies.