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Sensor assembly

  • US 7,127,369 B2
  • Filed: 10/09/2002
  • Issued: 10/24/2006
  • Est. Priority Date: 10/09/2001
  • Status: Expired due to Term
First Claim
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1. A method for determining a direction in which an object is moving comprising the steps of:

  • (a) generating a first signal representing a first operational characteristic;

    (b) generating a second signal representing a second operational characteristic wherein the first operational characteristic is the same as the second operational characteristic, and wherein steps (a) and (b) include generating the first and second signals with different timing relative to each other;

    (c) comparing the first and second signals to determine an initial direction; and

    (d) monitoring transitions of the first and second signals over time to verify that the initial direction is accurate and conveying the initial direction to a control unit for use in determining a position of the object.

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