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:
Jul. 06, 2004
Filed:
Jan. 14, 2002
Terumoto Akatsuka, Ichinomiya, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A multi-band, voltage-controlled oscillator has a switching device that can be certainly be turned on and off. The oscillator includes a negative source generator coupled to an output of a buffer transistor from which an oscillation frequency of an oscillating transistor is released, a switching device for selectively switching between an output of the negative source generator and a positive power source, and a mode switching device receiving an output frequency switching signal from the outside. An output of the switching device controls an opening and short-circuiting operation of first switching device to selectively release oscillation outputs in a low frequency band and a high frequency band from an output port.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile