Scanner-control device
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United States of America Patent
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-
Dec 4, 2001
Grant Date -
N/A
app pub date -
May 15, 2000
filing date -
May 29, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A scanner-control device for scanning an echo signal formed by returning transmit pulses, includes a clock generator, which triggers a pulse shaper for the transmit pulses and a further pulse shaper for scanning pulses. The scanner-control device also includes setting member for modifying a delay time of the scanning pulses, so that the echo signal can gradually be reconstructed from the returning transmit pulses. Temporally stable transmit pulses and scanning pulses, that are also in a temporal relation to each other, are achieved through the fact that the pulse shaper for the transmit pulses is an element of a first closed loop having a summing point and having a controller, and the further pulse shaper is an element of a second closed loop having a further summing point and a further controller, and that the summing point and the further summing point have supplied to them an identical setpoint value, and the further summing point has additionally a further setpoint value, which is varied to alter the delay time.
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