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Synchronizing ranging signals in an asynchronous ranging or position system

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01S-003/02
  • G01S-001/00
출원번호 US-0909234 (2004-07-30)
등록번호 US-7339526 (2008-03-04)
발명자 / 주소
  • Zimmerman,Kurt R.
출원인 / 주소
  • Novariant, Inc.
대리인 / 주소
    Brinks, Hofer, Gilson & Lione
인용정보 피인용 횟수 : 8  인용 특허 : 102

초록

In a local positioning system, the land-based transmitters include free running oscillators or oscillators free of clock synchronization with any remote oscillator. A reference receiver receives the ranging signals from different transmitters and generates timing offset information, such as code pha

대표청구항

I claim: 1. A system for transmitting to determine a range or position from a transmitter relative to a first receiver, the system comprising: a first transmitter operable to transmit a ranging signal with a modulation rate of a code being at least about 30 MHz, the transmission being to the first

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이 특허를 인용한 특허 (8)

  1. Nicholas, David C., Communication system to facilitate airborne electronic attack.
  2. Krapf, Reiner; Mahler, Michael, Machine tool monitoring device.
  3. McKillican, Boyd; Kanner, Abe, Method of determining the position of a vehicle moving along a guideway.
  4. Pretorius, Francois; Hill, David L.; Wisniewski, Charles A.; Lowe, III, Lawrence Deloss, Railroad signaling and communication system using a fail-safe voltage sensor to verify trackside conditions in safety-critical railroad applications.
  5. Thill, Marc; Harles, Guy; Gross, Markus; Wouters, Jos; Krier, Georges, Spacecraft position estimating system and method.
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