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:
Apr. 01, 2003
Filed:
Jan. 16, 2001
Toshiaki Nishibe, Tokyo, JP;
NEC Compound Semiconductor Devices, Ltd., Kanagawa, JP;
Abstract
In a high-frequency variable attenuator for variably attenuating an input high-frequency signal in response to a control voltage to produce an output high-frequency signal, a reference voltage generating circuit generates a controllable reference voltage in response to the control voltage. Connected to the reference voltage generating circuit, an attenuating circuit attenuates the input high-frequency signal on the basis of the control voltage in reference with the controllable reference voltage to produce the output high-frequency signal.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile