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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US39582133 Jan 197518 May 1976GTE Sylvania IncorporatedAdaptive gain control and method for signal processor
US409018011 Mar 197716 May 1978Elliott Brothers (London) LimitedVibration-responsive intruder alarm system
US42427439 Nov 197830 Dec 1980General Electric CompanyIntrusion detection method and apparatus
US428258525 Oct 19734 Aug 1981The United States of America as represented by the Secretary of the NavySite occupancy detector
US433752813 Dec 197229 Jun 1982The United States of America as represented by the Secretary of the Air ForceMoving vehicle seismic target detector