Physical quantity sensor capable of outputting time-serial...

Details Physical quantity sensor capable of outputting time-serial... Physical quantity sensor capable of outputting time-serial...

2006-08-01

2006-08-01

Chapman, John E. (Department: 2856)

Measuring and testing

Speed, velocity, or acceleration

Acceleration determination utilizing inertial element

C073S001380, C073S001620, C073S001880, C702S104000

Reexamination Certificate

active

07082830

ABSTRACT:
A physical quantity sensor detecting physical quantity, such as acceleration or angular velocity, is provided and mounted on, for example, a vehicle. The sensor has a physical quantity transducer and the first to third circuits. The transducer senses physical quantity acting in a direction determined with respect to a predetermined detection axis of the transducer to output a detection signal corresponding in level to the physical quantity. The first circuit receives the detection signal and output a first physical quantity signal depending in level on the detection signal. The second circuit produces a second physical quantity signal from the first physical quantity signal, the second physical quantity signal being larger in magnitude the first physical quantity signal. The third circuit receives the first and second physical quantity signals and outputs a signal consisting of the first and second physical quantity signals alternately selected and lined up sequentially in time.

REFERENCES:
patent: 4200925 (1980-04-01), Cushman
patent: 5396439 (1995-03-01), Yamada
patent: 6701788 (2004-03-01), Babala
patent: 9-236617 (1997-09-01), None
patent: 10-282136 (1998-10-01), None

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