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Portable radio transceiver system having improved adaptor and/or improved receiver signal control arrangement 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04B-001/38
출원번호 US-0566672 (1990-08-13)
우선권정보 JP-0206699 (1989-08-11); JP-0230815 (1989-09-05)
발명자 / 주소
  • Hashimoto Kazuya (Tokyo JPX)
출원인 / 주소
  • NEC Corporation (Tokyo JPX 03)
인용정보 피인용 횟수 : 52  인용 특허 : 0

초록 ▼

In order to enable a diversity reception in a portable radiotelephone without detrimentally increasing the size and weight thereof, an adaptor to which diversity antennas are coupled and into which the radiotelephone is inserted in an in-car mode, is provided with a diversity switch and a diversity

대표청구항 ▼

A portable radio-transceiver system comprising: a portable radio transceiver means for sending and receiving information; means comprising diversity antennas for simultaneously sending and receiving two radio signals at slightly different frequencies, said diversity antennas being fixable to a vehic

이 특허를 인용한 특허 (52)

  1. Tomura Masashi,JPX ; Sakashita Hiroaki,JPX ; Kubo Hiroshi,JPX ; Funaya Daizo,JPX ; Kobayashi Hidekatsu,JPX ; Tsukamoto Yoshifumi,JPX, Adapter for portable telephone usable as mobile telephone in vehicle.
    상세보기
  2. Tomura, Masashi; Sakashita, Hiroaki; Kubo, Hiroshi; Funaya, Daizo; Kobayashi, Hidekatsu; Tsukamoto, Yoshifumi, Adapter for portable telephone usable as mobile telephone in vehicle.
    상세보기
  3. Tomura,Masashi; Sakashita,Hiroaki; Kubo,Hiroshi; Funaya,Daizo; Kobayashi,Hidekatsu; Tsukamoto,Yoshifumi, Adapter for portable telephone usable as mobile telephone in vehicle.
    상세보기
  4. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for prioritizing communications between devices.
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  5. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for providing a user interface for facilitating communications between devices.
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  6. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for providing a user interface for facilitating communications between devices.
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  7. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for providing communications and connection-oriented services to devices.
    상세보기
  8. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for restricting access to data.
    상세보기
  9. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for routing communications between networks and devices.
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  10. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus and method for securely providing communications between devices and networks.
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  11. Tischer, Steven; Zellner, Samuel N.; Starr, Robert J., Apparatus, method, and computer-readable medium for interfacing devices with communications networks.
    상세보기
  12. Frank, Scott M.; Meadows, Vernon, Auto sensing home base station for mobile telephone with remote answering capabilities.
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  13. Frank, Scott M.; Meadows, Vernon, Auto sensing home base station for mobile telephone with remote answering capabilities.
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  14. Frank,Scott M.; Meadows,Vernon, Auto sensing home base station for mobile telephone with remote answering capabilities.
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  15. DePani, Sebastiano; Roach, Jr., Peter O., Cellular docking station.
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  16. DePani, Sebastiano; Roach, Jr., Peter O., Cellular docking station.
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  17. DePani,Sebastiano; Roach, Jr.,Peter O., Cellular docking station.
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  18. DePani,Sebastiano; Roach, Jr.,Peter O., Cellular docking station.
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  19. Meyer ; Jr. George W. (Buffalo Grove IL) Wong Allen (Streamwood IL) Spears John H. (McHenry IL) Bond David L. (Hoffman Estates IL) Vondrak Thomas F. (Libertyville IL), Cellular speakerphone and method of operation thereof.
    상세보기
  20. Davidson Steven Frederic ; Maglaya Daniel Gerard ; Sofia Donald A. ; Collar Stuart John ; Stone Jeffrey Jay, Communications interface adapter.
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  21. Steven Frederic Davidson ; Daniel Gerard Maglaya ; Donald A. Sofia ; Stuart John Collar ; Jeffrey Jay Stone, Communications interface adapter.
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  22. Vandivier, Karl Douglas, Controller for use with a motor vehicle.
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  23. Jensen Niels J., Dualband power amplifier control using a single power amplifier controller.
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  24. Svensson Jan,SEX, Externally controlled output power by means of antenna keying.
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  25. Pan Chun H., Hands-free cellular phone kit.
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  26. Branch Charles N. ; Nichols Mark E. ; Janky James M., Integrated mobile GIS/GPS/AVL with wireless messaging capability.
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  27. Nakamoto Kenji,JPX ; Enoki Takashi,JPX, Mobile station without a transmission/reception duplexer.
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  28. Jacklin William Edward, Personal communications system.
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  29. Davidson Steven Frederic ; Vollendorf Kim David ; DiCicco Michael Frank ; Collar Stuart John ; Stone Jeffrey Jay, Personal communications unit.
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  30. Davidson Steven F. ; Vollendorf Kim D. ; DiCicco Michael F. ; Brown David C. ; Gielow Christopher C. ; Cottingham David J., Personal communications unit docking station.
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  31. Davidson Steven F. ; Vollendorf Kim D. ; DiCicco Michael F. ; Brown David C. ; Gielow Christopher C. ; Cottingham David J., Personal communications unit handset.
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  32. Trikha Pushp Kumar ; Berg Roger William, Portable radio transceiver with diplexer-switch circuit for dual frequency band operation.
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  33. Demuro David M. ; Albert Mike M. ; Kalenowsky John A. ; Ford Robert ; Patino Joseph, Power adapter with integral radio frequency port.
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  34. Demuro David M. ; Albert Mike M. ; Kalenowsky John A. ; Ford Robert ; Patino Joseph, Power adapter with integral radio frequency port.
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  35. Kato Syozi (Hino JPX) Koike Noboru (Tama JPX), Radio telecommunication apparatus.
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  36. Millar Douglas James ; Uetake Tatsuya ; Youn Tai Won, Radio transceiver with impedance matched test port.
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  37. Tischer,Steven Neil; Kleinfelter,Kevin Paul, System and method for interfacing plain old telephone system (POTS) devices with cellular networks.
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  38. Gibeau,John, System for connecting wireless devices to a vehicle.
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  39. Kinzalow Richard M. ; Brownfield Lawrence ; Denison William D. ; Calhoun Sandra Kinzalow ; Arkin David M. ; Nitz Klaus E., System for interfacing a communication device with a radio for hands-free operation.
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  40. Patsiokas, Stelios, System for providing signals from an auxiliary audio source to a radio receiver using a wireless link.
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  41. Tischer, Steven; Kleinfelter, Kevin, Systems and methods for restricting the use and movement of telephony devices.
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  42. Takagi Kotaro,JPX, Telephone handset for hands-free use in an auto mobile.
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  43. Bellows, David E., Vehicle cradle system and methodology for hand held devices.
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  44. Stamegna Ivano, Vehicular audio system incorporating detachable cellular telephone.
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  45. Stamegna Ivano, Vehicular audio system incorporating detachable cellular telephone.
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  46. Stamegna Ivano, Vehicular audio system incorporating detachable cellular telephone.
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  47. Stobba Laura Lynn ; Jacklin William Edward, Voice operated switch for use in high noise environments.
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  48. Cardina,Donald M.; Link, II,Charles M., Wireless backup telephone device and associated support system.
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  49. Jacklin William Edward ; Stratmoen Scott Alan, Wireless communications protocol.
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  50. Jacklin William Edward ; Stratmoen Scott Alan, Wireless communications protocol.
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  51. Kotzin, Michael D., Wireless device cradle with spatial antenna diversity capability.
    상세보기
  52. Oh,Dae Sik, Wireless repeater with wireless telephone adapter.
    상세보기

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