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. 01, 1977
Filed:
Aug. 12, 1974
Applicant:
Inventors:
Richard A Momberger, Onondaga, NY (US);
G Norman Williams, Seneca, NY (US);
Assignee:
GTE Sylvania Incorporated, Stamford, CT (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
358196 ; 333 72 ;
Abstract
A surface wave frequency selective device including a single interdigital transducer disposed on a piezoelectric substrate for attenuating signals of a particular frequency or range of frequencies is shown. An intermediate frequency circuit including the surface wave frequency selective device and a frequency selective system including the surface wave frequency selective device as well as a surface wave filter disposed on the same substrate are also shown.