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. 27, 1982
Filed:
Jan. 05, 1981
Applicant:
Inventor:
Aristotelis Arvanitis, Addison, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H03H / ; H03H / ; H03H / ;
U.S. Cl.
CPC ...
333191 ; 29 2535 ; 324 56 ; 333192 ;
Abstract
A multi-resonator crystal filter is provided having a reduced number of electrical connecting pins. The monolithic crystal filter includes at least four resonators, namely, an input resonator, an output resonator and electrically coupled center resonators. A single electrical pin connection is made to the electrically coupled together center resonators thus avoiding the need for an individual connecting pin for each resonator.