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:
Oct. 10, 1995
Filed:
Jul. 01, 1992
Applicant:
Inventor:
James A Butler, Elgin, IL (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455227 ; 4552263 ; 327 72 ;
Abstract
A signal detection system wherein the detection of the presence of a signal does not depend on the absolute magnitude of the desired signal but does depend on a system whereby the total relative signal energy received is compared with the relative energy within a desired frequency band. If the relative energy within the desired frequency is above a threshold proportional to the total then the desired signal is determined to be present.