Measuring and testing – Engine detonation – Combustion signal compared to reference signal varied by a...
Reexamination Certificate
2008-11-12
2011-11-08
Kwok, Helen C. (Department: 2856)
Measuring and testing
Engine detonation
Combustion signal compared to reference signal varied by a...
C073S114070
Reexamination Certificate
active
08051702
ABSTRACT:
A system comprising an amplifier for amplifying signals of frequencies less than one kilohertz generated by a vibration sensor and using the amplified signal to amplitude modulate a carrier signal at a frequency in excess of one kilohertz and applying the amplitude modulated carrier signal to a sensor interface circuit.
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Lepley Joseph M.
Wick Thomas C.
Yohman Richard D.
Altronic, Inc.
Kwok Helen C.
The Webb Law Firm
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