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Dual frequency distance measuring system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G01S-005/06
출원번호 US-0939810 (1978-09-05)
발명자 / 주소
  • Spence Lewis C. (P.O. 10116 Riviera Beach FL 33404) Martin Stephen (Miami FL)
출원인 / 주소
  • Spence
  • Lewis C. (Riviera Beach FL 04)
인용정보 피인용 횟수 : 32  인용 특허 : 0

초록

A radio frequency distance measuring system and method where two continuous wave carrier signals, derived from a stable frequency source, are radiated from a known reference point. The frequency of the first continuous wave carrier signal is displaced from the frequency of the second continuous wave

대표청구항

A transmitting station in a radio frequency distance measuring system utilized to determine the distance of a unknown point from a known point, which comprises: (a) stable frequency source means for providing a first signal of a given frequency and a given phase; (b) means responsive to said first s

이 특허를 인용한 특허 (32)

  1. Moshfeghi, Mehran, Determining the position of a mobile device using the characteristics of received signals and a reference database.
  2. Moshfeghi, Mehran, Determining the position of a mobile device using the characteristics of received signals and a reference database.
  3. Moshfeghi, Mehran, Determining the position of a mobile device using the characteristics of received signals and a reference database.
  4. Kluge, Wolfram; Sachse, Eric, Distance measurement between two nodes of a radio network.
  5. Spence Lewis C. (Jupiter FL), Distance measuring receiver system and method.
  6. Carrender, Curtis Lee, Distance/ranging by determination of RF phase delta.
  7. Carrender, Curtis Lee; Price, John M., Distance/ranging determination using relative phase data.
  8. Moshfeghi, Mehran, Method and system for determining the location of an electronic device using multi-tone frequency signals.
  9. Moshfeghi, Mehran, Method and system for determining the location of an electronic device using multi-tone frequency signals.
  10. Gila,Janos; Konrad,Wolfgang; Renner,Alexander, Method for determining the distance between a base station and a mobile object, in addition to a base station and identification system for a method of this type.
  11. Moshfeghi, Mehran, Methods and systems for determining the location of an electronic device using multi-tone frequency signals.
  12. Zimmerman,Kurt R.; Cohen,Clark E.; Lawrence,David G.; Melton,Walter C.; Cobb,Henry Stewart; Montgomery,Paul Yalden, Multi-frequency pseudolites for carrier-based differential-position determination.
  13. Shoarinejad, Kambiz; Soltan, Maryam; Moshfeghi, Mehran, RFID location systems and methods.
  14. Shoarinejad, Kambiz; Soltan, Maryam; Moshfeghi, Mehran, RFID location systems and methods.
  15. Richards James L. ; Fullerton Larry W. ; Meigs David C. ; Stanley Randall S. ; Cowie Ivan A., System and method for distance measurement by inphase and quadrature signals in a radio system.
  16. Fireaizen, Moshe, System and method for enabling determination of a position of a transponder.
  17. Fireaizen, Moshe, System and method for enabling determination of position of a receiver.
  18. Taylor,Elise H.; Finn,James S., System and method for information assimilation and functionality control based on positioning information obtained by impulse radio means.
  19. Taylor, Elise H.; Finn, James S., System and method for information assimilation and functionality control based on positioning information obtained by impulse radio techniques.
  20. Richards James L. ; Kelly Donald A. ; Finn James S. ; Meigs David C. ; Welch ; Jr. William D., System and method for person or object position location utilizing impulse radio.
  21. Fullerton Larry W. ; Richards James L. ; Cowie Ivan A., System and method for position determination by impulse radio.
  22. Fullerton, Larry W.; Richards, James L.; Cowie, Ivan A., System and method for position determination by impulse radio using round trip time-of-flight.
  23. Eidloth, Andreas; Franke, Norbert, System for determining the movement of a swaying structure.
  24. Shoarinejad, Kambiz, Systems and methods for managing coverage area of wireless communication devices.
  25. Bartlett,David; Reynolds,Michael; Smith,Paul; Vasilopoulos,Nicolas; Duffett Smith,Peter, Tag tracking.
  26. Jones,Aled Wynne; Smith,Paul Anthony; Bearpark,Paul Joseph; Reynolds,Michael Raymond; Timson,Daniel Reginald Ewart; Rhodes,Andrew Michael; Vasilopoulos,Nicolas; Duffet Smith,Peter; Bartlett,David, Tag tracking.
  27. Shoarinejad, Kambiz, Wireless RFID networking systems and methods.
  28. Shoarinejad, Kambiz, Wireless RFID networking systems and methods.
  29. Shoarinejad, Kambiz, Wireless RFID networking systems and methods.
  30. Moshfeghi, Mehran, Wireless positioning approach using time-delay of signals with a known transmission pattern.
  31. Moshfeghi, Mehran, Wireless positioning approach using time-delay of signals with a known transmission pattern.
  32. Moshfeghi, Mehran, Wireless positioning approach using time-delay of signals with a known transmission pattern.
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