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ZA813229B - Frequency division communication system wherein conventional transmitter-transceiver can be used as or repeater or local base station - Google Patents

Frequency division communication system wherein conventional transmitter-transceiver can be used as or repeater or local base station

Info

Publication number
ZA813229B
ZA813229B ZA00813229A ZA813229A ZA813229B ZA 813229 B ZA813229 B ZA 813229B ZA 00813229 A ZA00813229 A ZA 00813229A ZA 813229 A ZA813229 A ZA 813229A ZA 813229 B ZA813229 B ZA 813229B
Authority
ZA
South Africa
Prior art keywords
repeater
transceiver
base station
communication system
frequency division
Prior art date
Application number
ZA00813229A
Other languages
English (en)
Inventor
Bruinsma John
John Bruinsma
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of ZA813229B publication Critical patent/ZA813229B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2621—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using frequency division multiple access [FDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/50—Circuits using different frequencies for the two directions of communication

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transceivers (AREA)
  • Radio Relay Systems (AREA)
ZA00813229A 1980-05-29 1981-05-14 Frequency division communication system wherein conventional transmitter-transceiver can be used as or repeater or local base station ZA813229B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPE378480 1980-05-29

Publications (1)

Publication Number Publication Date
ZA813229B true ZA813229B (en) 1983-01-26

Family

ID=3768544

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00813229A ZA813229B (en) 1980-05-29 1981-05-14 Frequency division communication system wherein conventional transmitter-transceiver can be used as or repeater or local base station

Country Status (6)

Country Link
US (1) US4394775A (xx)
EP (1) EP0041289B1 (xx)
JP (1) JPS5721133A (xx)
CA (1) CA1164588A (xx)
DE (1) DE3163177D1 (xx)
ZA (1) ZA813229B (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5214545A (en) * 1983-11-02 1993-05-25 Canon Kabushiki Kaisha Signal erasing apparatus
GB8419003D0 (en) * 1984-07-25 1984-08-30 Racal Res Ltd Portable telephones
JPS61274528A (ja) * 1985-05-30 1986-12-04 Nec Corp コ−ドレス電話システム
JPS62225096A (ja) * 1986-03-26 1987-10-03 Nec Corp 無線電話方式
US4864564A (en) * 1986-06-30 1989-09-05 U.S. Philips Corporation Packet radio
US4969056A (en) * 1986-07-26 1990-11-06 Canon Denshi Kabushiki Kaisha Apparatus for recording information on a disc
JPS6342003A (ja) * 1986-08-08 1988-02-23 Olympus Optical Co Ltd スチルビデオフロツピデイスク消去装置
WO1988002559A1 (en) * 1986-10-06 1988-04-07 Matsushita Electric Industrial Co., Ltd. Antenna sharing device
WO1988005231A1 (en) * 1987-01-12 1988-07-14 Motorola, Inc. Multiple frequency radio system employing pulse repeaters
US5012362A (en) * 1987-06-19 1991-04-30 Olympus Optical Co., Ltd. Apparatus for positioning a transducer for recording, reproducing or erasing information on a medium
US4941200A (en) * 1987-08-03 1990-07-10 Orion Industries, Inc. Booster
JPH01115228A (ja) * 1987-10-29 1989-05-08 Fuji Tec Kk 無線中継器
FR2708814B1 (fr) * 1993-07-30 1995-09-01 Alcatel Mobile Comm France Procédé de couverture des zones d'ombre d'un réseau de radiocommunications, et répéteur radio pour la mise en Óoeuvre de ce procédé.
DE19535021A1 (de) * 1995-09-21 1997-07-10 Joerg Dr Arnold Mobilfunkendgerät/Mobilfunkrelais
GB2326059A (en) * 1997-06-05 1998-12-09 Multiple Access Communications Path controlled repeating mobile stations
DE19726940C2 (de) * 1997-06-25 2002-07-18 Littlefeet Inc Sende- und Empfangsvorrichtung zur Verstärkung der Sendesignale zwischen einer ortsfesten und einer mobilen Sendestation sowie Verfahren zum Betrieb der Kan alerkennungsvorrichtung einer Sende- und Empfangsvorrichtung
US6275166B1 (en) 1999-01-19 2001-08-14 Architron Systems, Inc. RF remote appliance control/monitoring system
US6873245B2 (en) * 1999-01-19 2005-03-29 Architron Systems, Inc. RF remote appliance control/monitoring network

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1462279A (fr) * 1965-09-21 1966-04-15 Cit Alcatel Liaisons radio à fréquences porteuses aléatoires
NL6617461A (xx) * 1966-12-13 1968-06-14
US3706996A (en) * 1970-04-14 1972-12-19 Theodore Hafner Frequency adjustment for two-way video transmission
US3750032A (en) * 1972-02-24 1973-07-31 Motorola Inc Priority channel scanning system with dual response time control
US3854093A (en) * 1973-04-20 1974-12-10 Regency Electronic Inc Transceiver channel selector
JPS51206A (en) * 1974-06-18 1976-01-05 Torio Kk Shingohanbetsuhoho oyobi sonosochi
US4048561A (en) * 1975-11-28 1977-09-13 Robyn International, Inc. Apparatus for preventing simultaneous transmission and channel selection in a transmitter or transceiver
DE2805420A1 (de) * 1978-02-09 1979-08-16 Bosch Gmbh Robert Funksystem zur uebermittlung von nachrichten

Also Published As

Publication number Publication date
EP0041289A1 (en) 1981-12-09
EP0041289B1 (en) 1984-04-18
US4394775A (en) 1983-07-19
JPH0129098B2 (xx) 1989-06-07
JPS5721133A (en) 1982-02-03
DE3163177D1 (en) 1984-05-24
CA1164588A (en) 1984-03-27

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