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Method and apparatus for determining the position of a mobile communication device

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04Q-007/00
출원번호 US-0777625 (2001-02-06)
발명자 / 주소
  • McCrady, Dennis D.
  • Cummiskey, Peter
  • Doyle, Lawrence J.
  • Forstrom, Howard
출원인 / 주소
  • ITT Manufacturing Enterprises, Inc.
대리인 / 주소
    Edell, Shapiro & Finnan, LLC
인용정보 피인용 횟수 : 132  인용 특허 : 13

초록

A position location communication system determines the position of a mobile master radio using a round-trip messaging scheme in which the time of arrive (TOA) of ranging signals is accurately determined to yield the range estimates required to calculate the position of the mobile radio. The master

대표청구항

1. A mobile communication device capable of determining range to a reference communication device by exchanging ranging signals with the reference communication device, comprising:a transmitter configured to transmit to the reference communication device a sequence of outbound ranging signals at dif

이 특허에 인용된 특허 (13)

  1. Anderson Roy E. (Schenectady NY) Brisken Alex F. (Ballston Lake NY) Lewis ; James R. (Schenectady NY), Automatic transponder.
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