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. 19, 1977
Filed:
Dec. 01, 1975
Applicant:
Inventor:
Robert W Blomenkamp, Palo Alto, CA (US);
Assignee:
Physics International Company, San Leandro, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M / ; H03H / ;
U.S. Cl.
CPC ...
328167 ; 179 / ; 179 / ; 328112 ; 328140 ; 328150 ; 307234 ; 333 / ; 307362 ;
Abstract
An electronic band pass filter adapted for passing an oscillating wave pulse of a predetermined band width frequency is provided with a circuit for short circuiting the energy contained in the ring-down at the end of the pulse to ground with additional circuitry for cutting off ring up at the beginning of the pulse and further narrowing the band width frequency.