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. 01, 2003
Filed:
May. 25, 2001
Applicant:
Inventors:
Ronald A. Meck, Soquel, CA (US);
Earl W. McCune, Jr., Santa Clara, CA (US);
Edwin R. Twitchell, San Jose, CA (US);
Assignee:
Tropian, Inc., Cupertino, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 ;
U.S. Cl.
CPC ...
H03H 7/01 ;
Abstract
An apparatus and method are provided for attenuating an undesired frequency (f ) relative to a desired frequency (f ) in a signal transmitted from an out-put ( ) of an active element ( ). Generally, the apparatus includes a parallel-resonant trap ( ) coupled to the output of the active element ( ), the trap including a network of reactive elements ( ).