Low cost circuit for IC engine diagnostics using ionization...

Measuring and testing – Engine detonation – Specific type of detonation sensor

Reexamination Certificate

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Details

C073S118040

Reexamination Certificate

active

10655273

ABSTRACT:
This feature of the present invention comprises a method, apparatus, and system for detecting and conditioning an ionization current signal. In one embodiment of the invention, an analog signal conditioning circuit detects and processes the ionization signal. The analog signal conditioning circuit uses a signal isolator having an input and an output, an amplifier having a first and a second input, and a first and a second output, wherein the first input operably connected to the signal isolator output, a peak detector having a first and a second input, and an output, wherein the first input is operably connected to the first output of the amplifier, and an integrator having a first and a second input, and an output, wherein the first input is operably connected to the second output of the amplifier.

REFERENCES:
patent: 5060623 (1991-10-01), McCoy
patent: 5337717 (1994-08-01), Scheel et al.
patent: 5343844 (1994-09-01), Fukui et al.
patent: 5425339 (1995-06-01), Fukui
patent: 5534781 (1996-07-01), Lee et al.
patent: 5672972 (1997-09-01), McCoy et al.
patent: 5781012 (1998-07-01), Yasuda
patent: 6011397 (2000-01-01), Yasuda
patent: 6075366 (2000-06-01), Yasuda
patent: 6104195 (2000-08-01), Yoshinaga et al.
patent: 6196054 (2001-03-01), Okamura et al.
patent: 6202474 (2001-03-01), Takahashi et al.
patent: 6205844 (2001-03-01), Morita et al.
patent: 6263727 (2001-07-01), Butler, Jr.
patent: 6275041 (2001-08-01), Okamura et al.
patent: 6336355 (2002-01-01), Sasaki et al.
patent: 6360587 (2002-03-01), Noel
patent: 6367318 (2002-04-01), Boyer et al.
patent: 6922628 (2005-07-01), Zhu et al.
patent: 2002/0144544 (2002-10-01), Kesler
patent: 2003/0080745 (2003-05-01), Hanazaki et al.
patent: 2004/0084026 (2004-05-01), Zhu et al.
patent: 2004/0084036 (2004-05-01), Porter et al.
patent: 2004/0099530 (2004-05-01), Bolz
patent: 2005/0114012 (2005-05-01), Zhu et al.
patent: 19816641 (1999-10-01), None
patent: 1217207 (2002-06-01), None
patent: 2395522 (2004-05-01), None
patent: WO 97124527 (1997-07-01), None
Combined Search and Examination Report under Section 17 and 18(3); European Patent Office; dated Dec. 17, 2004; 7 pages.
Preliminary Search Report dated Nov. 6, 2006, French Patent Office, 2 pages.

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