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:
Jun. 29, 2010
Filed:
Dec. 22, 2006
David L. Churchill, Burlington, VT (US);
Frederic P. Martin, Richmond, VT (US);
Michael J. Hamel, Essex Junction, VT (US);
Christopher P. Townsend, Shelburne, VT (US);
Steven W. Arms, Williston, VT (US);
David L. Churchill, Burlington, VT (US);
Frederic P. Martin, Richmond, VT (US);
Michael J. Hamel, Essex Junction, VT (US);
Christopher P. Townsend, Shelburne, VT (US);
Steven W. Arms, Williston, VT (US);
Microstrain, Inc., Williston, VT (US);
Abstract
A system includes a structure and a circuit. The circuit is mounted to the structure. The circuit includes a sensor, a non-volatile memory, and a voltage sensitive switch. The memory and the voltage sensitive switch are connected for recording an event sensed by said sensor. The recording only uses power derived from the sensor. One embodiment of the circuit includes a processor connected for receiving a signal derived from the sensor. In this embodiment the non-volatile memory is connected to the processor for receiving and storing data derived from the signal. In one embodiment a first energy storage device is connected to receive energy from the sensor. The voltage sensitive switch is connected for releasing energy from the first energy storage device when energy stored in the first energy storage device exceeds a threshold. The processor and the non-volatile memory are connected for receiving power from the released energy.