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Communication system 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04M-011/06
출원번호 US-0071090 (1993-06-04)
발명자 / 주소
  • Purchase F. Jack (Unionville CAX) Poole Ross A. (Newmarket CAX) Law James M. (Beeton CAX)
출원인 / 주소
  • Ainsworth Technologies Inc. (North York CAX 03)
인용정보 피인용 횟수 : 101  인용 특허 : 0

초록

A communication system, particularly for a mine, has a broad band distribution system. Antennas, which may comprise leaky coax feeders, are connected to this distribution system by interface units. As required, the interface units effect signal level adjustment, frequency translation, and/or modulat

대표청구항

A communication system comprising: a non-radiating broad band distribution system having a plurality of connection points for transmission in a first outbound broad band spectrum and reception in a first inbound broad band spectrum, which are sufficiently spaced from one another to permit separate a

이 특허를 인용한 특허 (101)

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  2. Binder, Yehuda; Hazani, Ami, Apparatus and method for frequency shifting of a wireless signal and systems using frequency shifting.
  3. Brooks, Paul D., Apparatus and method for increasing upstream capacity in a broadband communications system.
  4. Monroe,David A., Apparatus and method of collecting and distributing event data to strategic security personnel and response vehicles.
  5. Monroe, David A., Apparatus for and method of collecting and distributing event data to strategic security personnel and response vehicles.
  6. Monroe, David A., Apparatus for capturing, converting and transmitting a visual image signal via a digital transmission system.
  7. Monroe,David A., Apparatus for capturing, converting and transmitting a visual image signal via a digital transmission system.
  8. Newson Paul,CAX, Arrangement for providing cellular communication via a CATV network.
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  10. Pristas, James; Hughes, Dan, Channel allocation for a multi-device communication system.
  11. Lee, Choong-leol, Circuit call generator for testing functions of interworking function system and method therefor.
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  15. Shapira, Isaac; Saban, Ofer; Shapira, Yair Zeev, Communication system using low bandwidth wires.
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  26. Harel, Dror, Frequency shifting a communications signal(S) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference.
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  28. Harel, Dror, Frequency shifting a communications signal(s) in a multi-frequency distributed antenna system (DAS) to avoid or reduce frequency interference.
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  30. Monroe,David A., Ground based security surveillance system for aircraft and other commercial vehicles.
  31. Stepp,Jeffrey David; Hensley,Dale, ISM band to U-NII band frequency transverter and method of frequency transversion.
  32. Stepp,Jeffrey David; Hensley,Dale, ISM band to U-NII band frequency transverter and method of frequency transversion.
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  37. Brian Paul Gaucher, Method and apparatus for an automatic multi-rate wireless/wired computer network.
  38. Gaucher Brian Paul, Method and apparatus for an automatic multi-rate wireless/wired computer network.
  39. Monroe, David A.; Metzger, Raymond R., Method and apparatus for distributing digitized streaming video over a network.
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  41. Schmidt, Paul E.; Silverstrim, James Edward; Koleszar, Luke, Method and apparatus for reliable communications in underground and hazardous areas.
  42. Monroe, David A., Method and apparatus for sending and receiving facsimile transmissions over a non-telephonic transmission system.
  43. Ghori Amar ; White John, Method and system for coupling a personal computer with an appliance unit via a wireless communication link to provide an output display presentation.
  44. Berlin, Igor; Harel, Dror; Saban, Ofer; Shapira, Isaac, Method and system for real time control of an active antenna over a distributed antenna system.
  45. Saban, Ofer; Shapira, Isaac; Harel, Dror; Berlin, Igor, Method and system for real time control of an active antenna over a distributed antenna system.
  46. Monroe, David A., Method for incorporating facial recognition technology in a multimedia surveillance system.
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  50. Cook Dean Lawrence ; Corman David Warren ; Gilray Carl Robert, Multi-repeater communication system.
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  79. Saig, Maor; Schwartzman, Ronen, Protection of distributed antenna systems.
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  81. Charles M. Knop ; Gregory S. Orseno, Radiating coaxial cable having helically diposed slots and radio communication system using same.
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  83. Saban, Ofer; Shapira, Isaac, Radio-frequency integrated circuit (RFIC) chip(s) for providing distributed antenna system functionalities, and related components, systems, and methods.
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  85. Gollakota, Shyamnath; Katabi, Dina; Lin, Ching-Ju, Random access heterogeneous MIMO network.
  86. Monroe, David A., Record and playback system for aircraft.
  87. Monroe, David A., Record and playback system for aircraft.
  88. Pulkkinen,Jani; Torvinen,Marko, Reduction scheme for network elements.
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  96. Naidu Arun ; Huffman Jacque ; Eckstein Larry, System and method for reducing cumulative noise in a distributed antenna network.
  97. Waye, Patrick M. Y., System and method to facilitate overcoming a degradation in transmission through a radiating transmission line communication system.
  98. Metzger, Raymond; Baird, John; Alvarado, Adrian; Hollida, Ray; Monroe, David, System for a plurality of video cameras disposed on a common network.
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