Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2006-09-26
2006-09-26
Mullen, Thomas (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S665000, C340S683000, C340S674000, C324S173000, C324S179000, C360S313000
Reexamination Certificate
active
07113104
ABSTRACT:
A gyroscope (10) for determining rate of rotation includes a giant magnetoresistor (GMR) (14) attached to a mass (12) oscillating along a first axis. When the gyroscope (10) is rotated, the mass (12) also oscillates along a second axis perpendicular to the first axis. A magnetic element (16), which includes of a strip of magnetic bits (18), is disposed along the first axis, the second axis, or both. The magnetic bits (18) supply discrete magnetic fields. The GMR (14) changes in electrical resistance when exposed to these magnetic fields. A voltage sensor (20) and processor (34) are then utilized to calculate the rate of rotation.
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Publication entitled “IMI Gyroscope Closeup” dated Dec. 18, 2000 at http://www.imi-mems.com/closegyro.htm Giant Magneto-Resistance Devices, authored by E. Hirota, H. Sakakima and K. Inomata, and published by Springer Series In Surface Sciences. (Book cover title page, preface, table of contents and Section 4.3.1 (pp. 100-105).
Howard & Howard Attnys.
Mullen Thomas
Previl Daniel
University of South Florida
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