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Radio paging system having a plurality of transmitter stations

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04M-011/00
출원번호 US-0002896 (1993-01-11)
우선권정보 JP-0002970 (1992-01-10); JP-0127016 (1992-05-20); JP-0180204 (1992-07-08); JP-0187753 (1992-07-15)
발명자 / 주소
  • Ichikawa Yoshio (Tokyo JPX)
출원인 / 주소
  • NEC Corporation (Tokyo JPX 03)
인용정보 피인용 횟수 : 41  인용 특허 : 0

초록

A global radio paging system in which a plurality of radio frequency carriers having the same frequency are synchronously modulated in a plurality of base stations corresponding in number to the radio frequency carriers with the same digital paging signal and transmitted, respectively. A paging cont

대표청구항

In a global paging system for providing paging services for a plurality of paging receivers distributed in service areas of a plurality of base stations, a paging controller responsive to a paging call received from a subscriber of a Public Switched Telephone Network (PSTN) therethrough for producin

이 특허를 인용한 특허 (41)

  1. Thom Kennedy CA, Alarm monitoring and reporting system.
  2. Alger-Meunier Michael,DEX ; Ammar Yousif,DEX ; Brueckmann Dieter,DEX ; Hoefer Gerald,DEX, Apparatus for compensating for signal transit time differences of digital transmission devices.
  3. Kim Kon-Soo,KRX, Automatic adjustment delay technique for simulcast of paging system.
  4. Kurokami Yuzo,JPX ; Anzai Makoto,JPX, Communication system for multicasting delay-adjusted signals on same radio frequencies to adjoining cells.
  5. Ronald J. Hash ; Douglas C. Bowman, Data communication system harnessing frequency shift keyed magnetic field.
  6. Avis Graham, Discontinuous receive operation in a wireless terminal.
  7. Thro Stuart W. ; Shaughnessy Mark L. ; Kotzin Michael D., Infrastructure transceiver and method for configuration based on location information.
  8. Famolari,David, Managing scanning and traffic in a network.
  9. Meng, Teresa H.; Su, David; Zargari, Masoud, Method and apparatus for eliminating the effects of frequency offsets in a digital communication system.
  10. Meng, Teresa H.; Su, David; Zargari, Masoud, Method and apparatus for eliminating the effects of frequency offsets in a digital communication system.
  11. Park, Edwin C., Method and apparatus for utilizing a second receiver to establish time and frequency.
  12. Park, Edwin C.; Hui, Yan, Method and apparatus for utilizing a second receiver to establish time and frequency.
  13. Park, Edwin C.; Hui, Yan, Method and apparatus for utilizing a second receiver to establish time and frequency.
  14. Keisaku Hayashi, Mobile communications terminal and system with offset time feature.
  15. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  16. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  17. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  18. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  19. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  20. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  21. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  22. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  23. McFarland, William J., Multi-carrier communication systems employing variable symbol rates and number of carriers.
  24. McFarland,William, Multi-carrier communication systems employing variable symbol rates and number of carriers.
  25. Tanaka Hironao,JPX, Network comprising base stations for selectivity calling mobile units by call radio signals of different bit rates in ph.
  26. Palkisto,Virpi; Vialen,Jukka, Paging method and system for a radio access network.
  27. Foltyn,Roman; Maier,Rupert; Sykosch,Ralf, Precisely timed execution of a measurement or control action and synchronization of several such actions.
  28. McFarland, William, Protocols for scalable communication system using overland signals and multi-carrier frequency communication.
  29. Harrington, Timothy C.; Hash, Ronald J.; Belcher, Donald K., Proximity-based magnetic field generator for controlling operation of RF burst-transmitting tags of geolocation system.
  30. Williams, Jr., Olin A., Pseudorandom binary discrete interval noise signal generation and injection on to the electric power grid.
  31. Itomitsu, Fujio; Komawaki, Kouichi, Radio base station device and radio communication method.
  32. Mizuki, Takayuki; Ohashi, Setsuya; Yamao, Yasushi; Ito, Shogo, Radio paging signal coding control scheme using variable number of logical channels according to paging signal traffic.
  33. Kuroki Yoshinori,JPX ; Suzuki Toshiro,JPX ; Koide Ayumu,JPX ; Kojima Takafumi,JPX ; Kogure Yasuo,JPX, Radio paging transmitter which adjusts its transmission time based on detection of its own transmission delay.
  34. Iannuzzelli, Russell; Mattson, Stephen Douglas; Balasubramanian, Muthu Gopal, Synchronization of separated platforms in an HD radio broadcast single frequency network.
  35. Menon, Narayan Parappil; Carlton, Alan Gerald, System and method for call routing and paging across different types of networks.
  36. Menon, Narayan Parappil; Carlton, Alan Gerald, System and method for call routing and paging across different types of networks.
  37. Menon, Narayan Parappil; Carlton, Alan Gerald, System and method for call routing and paging across different types of networks.
  38. Menon, Narayan Parappil; Carlton, Alan Gerald, System and method for call routing and paging across different types of networks.
  39. M��ller,Dominique, System and method for synchronizing a transport stream in a single frequency network.
  40. Mitsuru Seta JP, Time synchronization method in CDMA system.
  41. Donald K. Belcher ; John A. Eisenberg ; Ronald J. Hash ; Douglas C. Bowman, Ultra-sensitive magnetic field receiver capable of operating in high noise environments.
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