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Sensor diagnostic system

  • US 5,553,489 A
  • Filed: 02/01/1995
  • Issued: 09/10/1996
  • Est. Priority Date: 02/01/1995
  • Status: Expired due to Term
First Claim
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1. A diagnostic system for measuring behaviour of signals provided by a plurality of sensors comprising:

  • a plurality of filter circuits for receiving signals from each of the plurality of sensors and for providing a plurality of filtered sensor signals each derived from the received signals, wherein each of the plurality of filtered sensor signals have a signal bandwidth lower than a signal bandwidth of the associated received signal;

    a selection circuit for receiving the signals from each of the plurality of sensors and, dependent on a selection signal, for providing a selected sensor signal derived from one of the received signals, wherein the selected sensor signal has a signal bandwidth greater than a signal bandwidth of one of the plurality of filtered sensor signals; and

    a converter circuit for receiving each of the plurality of filtered sensors signals and the selected sensor signal and for providing a converted signal dependent on another selection signal.

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