Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant
Reexamination Certificate
2007-12-18
2007-12-18
Kwon, John T. (Department: 3747)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
With indicator or control of power plant
C123S435000, C123S406210, C341S118000
Reexamination Certificate
active
11643933
ABSTRACT:
A knock sensor signal processing apparatus for an engine, which performs a series of A/D conversions of a knock sensor signal during each of successive knock judgement intervals to obtain A/D converted values for use in judging if engine knocking is occurring in a cylinder, derives compensation coefficients during an interval between the end of a knock judgement interval corresponding to a cylinder and the start of deriving knock sensor signal A/D values in a succeeding knock judgement interval for a succeeding cylinder, and applies these coefficients to correct the A/D converted values derived in the second knock judgement interval.
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Denso Corporation
Kwon John T.
Nixon & Vanderhye P.C.
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