Apparatus and method for determination of a direction to an object
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United States of America Patent
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Jul 27, 2010
Grant Date -
Jun 26, 2008
app pub date -
Sep 8, 2005
filing date -
Oct 29, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus includes a plurality of sensor modules that are disposed at spacings with respect to one another, each sensor module having a local oscillator device. The oscillator device generates an oscillator signal that is passed on to a transmit/receive device, and the oscillator signal is radiated. The transmit/receive device is set up such that it can receive signals reflected from the object. A phase detection device is coupled at one input to the oscillator device and at a second input to the transmit/receive device. Based on the oscillator signal and the received reflected signals, the phase detection device determines a phase signal. A control and signal-processing device determines, based on the spacings of the sensor modules with respect to one another and the phase signals, a direction of the object with respect to the sensor module.
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