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User out-of-range indication for digital wireless systems 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-007/00
출원번호 US-0561687 (1995-11-22)
발명자 / 주소
  • Coverdale Paul Vincent,CAX
  • Getchell Wayne Raymond,CAX
출원인 / 주소
  • Northern Telecom Limited, CAX
대리인 / 주소
    Measures
인용정보 피인용 횟수 : 46  인용 특허 : 0

초록 ▼

A system for notifying users of digital wireless communications that a mobile unit is moving out of range and communication is about to be lost. The system inserts an audible indication as the received signal strength varies. The audible indication can be in the form of noise which is inserted in su

대표청구항 ▼

[ What is claimed is:] [1.] A wireless unit for use in a digital wireless telecommunications system, said wireless unit comprising:a digital receiver, said digital receiver including means for determining a parameter measuring the reception quality of a received digital signal;a comparison and contr

이 특허를 인용한 특허 (46)

  1. James A. Proctor, Jr., Arbitration method for high power transmissions in a code division multiple access system.
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  2. Fullam, Scott; Romano, Pasquale, Cell notification.
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  3. Becker, Donald W.; Leigh, William E. L., Channel encoding and decoding method and apparatus.
    상세보기
  4. Alberth William P. ; Steele Scott A. ; Ozaki Patricia, Closeable communication device and method of operating the same.
    상세보기
  5. Besharat Mark ; Winzer Jochen G. ; Daly Edward ; Lizzi Ron ; Bennett Len, Communication device providing out-of-range battery saving and method therefor.
    상세보기
  6. Gernert,Alex M.; Scheve,Daniel L., Communication in a wireless communications network when a mobile computer terminal may be unreachable.
    상세보기
  7. Muthuswamy,Sivakumar; Ramamurthy,Anupama, Communication system with call quality indication and method of operation therein.
    상세보기
  8. Saito, Masahiro, Communication terminal out of range determination method, wireless communication system switching method and communication terminal.
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  9. Saito, Masahiro, Communication terminal out of range determination method, wireless communication system switching method and communication terminal.
    상세보기
  10. Sasakura Toyoki,JPX ; Miyamoto Kenichi,JPX, Device for prohibiting unauthorized use of electronic devices.
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  11. Harley, James; Gaudette, Jamie; Jakober, Lukas; Hartling, Elizabeth Rivera; Riaz, Bilal, Digital noise loading for optical receivers.
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  12. Ishihara Junji,JPX, Folded-type portable telephone set.
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  13. Lee Michael Charles Gerald,CAX ; Durufle Francis,CAX, Handset based automatic call re-initiation for multi-mode handsets.
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  14. Schipper John F. ; Najafi Hamid ; Janky James M., Method and apparatus for advising cellphone users of possible actions to avoid dropped calls.
    상세보기
  15. Moerder Karl E. ; Becker Donald W., Method and apparatus for calibration of a wireless transmitter.
    상세보기
  16. Charles Merriam, Method and apparatus for determining the behavior of a communications device based upon environmental conditions.
    상세보기
  17. Elkin Kenneth Charles ; Snowden Gregory O., Method and apparatus for displaying signal information in a radio communication device.
    상세보기
  18. Carneal, Bruce L.; Moerder, Karl E.; Becker, Donald W.; Zhu, Min, Method and apparatus for multiple access in a communication system.
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  19. Carneal,Bruce L.; Moerder,Karl E.; Becker,Donald W.; Zhu,Min, Method and apparatus for multiple access in a communication system.
    상세보기
  20. Agrawal Dharma P. ; Agrawal Prathima, Method and apparatus for spatial redundancy in cellular networks.
    상세보기
  21. Larry David Jordan ; Thomas Casey Hill, Method and apparatus to reprioritize data transfer in a short range Ad Hoc network.
    상세보기
  22. Carneal,Bruce L.; Zhu,Min; Bradshaw,Steven H., Method and system for frequency spectrum resource allocation.
    상세보기
  23. Davis, Scott B.; Newell, Michael A., Method for mapping poor coverage areas.
    상세보기
  24. Moerder, Karl E., Method of and apparatus for time synchronization in a communication system.
    상세보기
  25. Jung, Sung-Kwon, Mobile communication terminal capable of varying settings of various items in a user menu depending on a location thereof and a method therefor.
    상세보기
  26. Higuchi,Kazutoshi, Portable mobile unit.
    상세보기
  27. Sato,Ryohei, Portable telephone device and external adapter connected by a short-range wireless link.
    상세보기
  28. Sakaguchi, Ikuo, Portable telephone set for detecting radio wave interference on switched perch channels and displaying interference warning.
    상세보기
  29. Sakaguchi,Ikuo, Portable telephone set with interference detecting and warning function displayed with indication of type of radio interference fault.
    상세보기
  30. Comp,Lynn A., Pre-notification of potential connection loss in wireless local area network.
    상세보기
  31. Bozzetto Olivier,FRX ; Bordeau Jean-Pascal,FRX, Radio range verification method, wireless telecommunications equipment implementing this method, base station and mobile handset of such equipment.
    상세보기
  32. Gorday Robert Mark ; Snowden Gregory O. ; Christmas Craig ; Kreitzer Stuart ; Elkin Kenneth C. ; Bennett Leonard, Receive signal quality estimates suitable for pagers used in satellite-based communication systems.
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  33. Seppanen, Jorma Antero, Signal quality indicator apparatus and method particularly useful for mobile telephones.
    상세보기
  34. Jastram, Robert; Wendler, John P., Simulated degradation of SNR in decoded digital audio correlated to wireless link bit-error rate.
    상세보기
  35. Bruce L. Carneal ; Christopher M. Lee, System and method for clock correlated data flow in a multi-processor communication system.
    상세보기
  36. Carneal, Bruce L.; Zhu, Min, System and method for efficient channel assignment.
    상세보기
  37. Detlef Michael J. ; Maliszewski Gerald W., System and method for intuitively indicating signal quality in a wireless digital communications network.
    상세보기
  38. Petronelli, Anthony P.; Ou, Canhui, System and method for reliable mobile communication in areas with sporadic signal reception.
    상세보기
  39. Petronelli, Anthony P.; Ou, Canhui, System and method for reliable mobile communication in areas with sporadic signal reception.
    상세보기
  40. Frensch, Jochen, System for improving the subjective impression of a digitized image.
    상세보기
  41. Bradshaw, Steven H.; Carneal, Bruce L.; Moerder, Karl E.; Theiss-Aird, Michael J., Transmission and reception of TCP/IP data over a wireless communication channel.
    상세보기
  42. Bradshaw, Steven H.; Carneal, Bruce L.; Moerder, Karl E.; Theiss-Aird, Michael J., Transmission and reception of TCP/IP data over a wireless communication channel.
    상세보기
  43. Bradshaw, Steven H.; Carneal, Bruce L.; Moerder, Karl E.; Theiss-Aird, Michael J., Transmission and reception of TCP/IP data over a wireless communication channel.
    상세보기
  44. Becker Donald W. ; Leigh William E. L., Vectored demodulation and frequency estimation apparatus and method.
    상세보기
  45. Sarkar, Falguni, Voice quality on a communication link based on customer feedback.
    상세보기
  46. Lee, Michael M.; McKillop, Christopher; Schell, Stephan Vincent, Wireless communication out of range indication.
    상세보기

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