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:
Jan. 25, 1983
Filed:
Jan. 05, 1981
Applicant:
Inventors:
Robert V Janc, Palos Heights, IL (US);
David S Robins, Buffalo Grove, IL (US);
Michael H Retzer, Schaumburg, IL (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L / ;
U.S. Cl.
CPC ...
375 94 ; 375 95 ; 328109 ; 364486 ; 364575 ;
Abstract
The presence of a pulsed radio frequency signal is detected by periodically sampling such signal with first and second sampling strobes in quadrature relationship. The first and second strobes are separately accumulated for a first period of time overlapping a second period of time during which the first and second strobes are also accumulated. The four sums resulting from such accumulations are compared with a predetermined threshold level to determine the presence of the pulsed radio frequency signal.