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:
Mar. 26, 2002
Filed:
Apr. 20, 2000
Mark A. Johnson, Rensselaer, NY (US);
Paul J. Cote, Clifton Park, NY (US);
The United States of America as represented by the Secretary of the Army, Washington, DC (US);
Abstract
A monitor device for monitoring the activity of an individual to provide an alarm for anomalous by the individual. The device includes a triaxial accelerometer adapted to measure simultaneously measure acceleration in three orthogonal, linear axes and generate a voltage output identifying the amplitude and frequency of detected motion by the individual in each axis. Also included is interface electronics for receiving the voltage outputs and buffering the voltage outputs to generate a first reference voltage for each axis of the accelerometer. Amplifier electronics amplifies each voltage output and compares each voltage output to the first reference voltage to produce a digital signal. A microcontroller receives the digital signal to compare it to an adjustable second reference voltage. The microcontroller is programmed to discriminate between normal activity and anomalous activity by identifying sensor activity within sequences of preselected time intervals and sending an alarm signal upon detection of the anomalous activity. An alarm for receiving the alarm signal and signaling an alarm completes the device.