CA1282877C - Transmitter/receiver apparatus - Google Patents

Transmitter/receiver apparatus

Info

Publication number
CA1282877C
CA1282877C CA000537701A CA537701A CA1282877C CA 1282877 C CA1282877 C CA 1282877C CA 000537701 A CA000537701 A CA 000537701A CA 537701 A CA537701 A CA 537701A CA 1282877 C CA1282877 C CA 1282877C
Authority
CA
Canada
Prior art keywords
frequency band
transmit
frequency
receive
transmitter
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
CA000537701A
Other languages
English (en)
French (fr)
Inventor
Osamu Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of CA1282877C publication Critical patent/CA1282877C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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)
  • Radio Relay Systems (AREA)
  • Superheterodyne Receivers (AREA)
  • Transceivers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Transmitters (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
CA000537701A 1986-05-23 1987-05-22 Transmitter/receiver apparatus Expired - Lifetime CA1282877C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61118908A JPS62274934A (ja) 1986-05-23 1986-05-23 送受信装置
JP118908/1986 1986-05-23

Publications (1)

Publication Number Publication Date
CA1282877C true CA1282877C (en) 1991-04-09

Family

ID=14748144

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000537701A Expired - Lifetime CA1282877C (en) 1986-05-23 1987-05-22 Transmitter/receiver apparatus

Country Status (5)

Country Link
US (1) US4907291A (forum.php)
EP (1) EP0246658A3 (forum.php)
JP (1) JPS62274934A (forum.php)
AU (1) AU612977B2 (forum.php)
CA (1) CA1282877C (forum.php)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62274934A (ja) * 1986-05-23 1987-11-28 Nec Corp 送受信装置
JPH0389721A (ja) * 1989-09-01 1991-04-15 Oki Electric Ind Co Ltd 送受信装置
GB9025007D0 (en) * 1990-11-16 1991-01-02 Orbitel Mobile Communications Mobile radio telephone
US5355524A (en) * 1992-01-21 1994-10-11 Motorola, Inc. Integrated radio receiver/transmitter structure
JPH05300048A (ja) * 1992-04-14 1993-11-12 Motorola Inc 無線周波送受信機およびその動作方法
GB2272605B (en) * 1992-11-11 1996-11-27 Nokia Mobile Phones Uk Radio frequency circuit for a time division multiple access system
US5369779A (en) * 1993-06-28 1994-11-29 Zenith Electronics Corp. Two-way MMDS communications system
SE9302741D0 (sv) * 1993-08-25 1993-08-25 Volvo Ab Anordning för alstring av ljud i fordon
JP2809097B2 (ja) * 1994-04-26 1998-10-08 日本電気株式会社 無線局装置
US5669067A (en) * 1994-06-29 1997-09-16 Harris Corporation Remotely controllable variable intermediate frequency transceiver
GB2292502B (en) * 1994-08-17 1998-07-15 Continental Microwave Technolo Microwave radio system
AU711062B2 (en) 1995-03-24 1999-10-07 European Broadcasting Union A conferencing system
FI102121B1 (fi) * 1995-04-07 1998-10-15 Lk Products Oy Radiotietoliikenteen lähetin/vastaanotin
JP3252653B2 (ja) * 1995-06-05 2002-02-04 三菱電機株式会社 送受信機
GB2325347B (en) * 1997-05-14 2002-07-17 Internat Mobile Satellite Orga Satellite communications apparatus and method
US6144473A (en) * 1997-06-09 2000-11-07 Sigmatel, Inc. Method and apparatus for transceiving infrared signals
GB2331666A (en) 1997-11-20 1999-05-26 Dsc Telecom Lp Subscriber Terminal for a Wireless Telecommunications System
US6141538A (en) * 1998-03-03 2000-10-31 Northrop Grumman Corporation Transmit detection circuit
JP3107035B2 (ja) * 1998-03-18 2000-11-06 日本電気株式会社 低雑音増幅器及びその制御回路
US6711394B2 (en) 1998-08-06 2004-03-23 Isco International, Inc. RF receiver having cascaded filters and an intermediate amplifier stage
US6314309B1 (en) 1998-09-22 2001-11-06 Illinois Superconductor Corp. Dual operation mode all temperature filter using superconducting resonators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2864944A (en) * 1954-05-18 1958-12-16 Rca Corp Two way radio relay system including traveling wave tubes
CH477132A (de) * 1968-10-15 1969-08-15 Patelhold Patentverwertung Sende-Empfangseinrichtung für sehr hohe Frequenzen
JPS5380906A (en) * 1976-12-27 1978-07-17 Oki Electric Ind Co Ltd Frequency converter
JPS6019173A (ja) * 1983-07-13 1985-01-31 Fuji Xerox Co Ltd 複写機のトナ−補給方法
JPS60149227A (ja) * 1984-01-13 1985-08-06 Sony Corp Ｓｈｆ受信機
JPS62274934A (ja) * 1986-05-23 1987-11-28 Nec Corp 送受信装置

Also Published As

Publication number Publication date
US4907291A (en) 1990-03-06
AU7330687A (en) 1987-11-26
EP0246658A3 (en) 1989-07-19
AU612977B2 (en) 1991-07-25
EP0246658A2 (en) 1987-11-25
JPS62274934A (ja) 1987-11-28
JPH0466413B2 (forum.php) 1992-10-23

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Legal Events

Date Code Title Description
MKEX Expiry