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Ultra high resolution ranging unit

  • US 5,914,683 A
  • Filed: 09/11/1997
  • Issued: 06/22/1999
  • Est. Priority Date: 09/12/1996
  • Status: Expired due to Fees
First Claim
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1. An ultra high resolution ranging unit comprising a transmitter for transmitting a swept frequency, a receiver for receiving an echo of the swept frequency, a decoder connected to the receiver for decoding the received echo and producing a phase gate, a converter connected to the decoder for comparing phases, and an indicator for indicating distant measurement according to the phases.

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