JPS55161429A - Signal transmitting and receiving system - Google Patents

Signal transmitting and receiving system

Info

Publication number
JPS55161429A
JPS55161429A JP6846979A JP6846979A JPS55161429A JP S55161429 A JPS55161429 A JP S55161429A JP 6846979 A JP6846979 A JP 6846979A JP 6846979 A JP6846979 A JP 6846979A JP S55161429 A JPS55161429 A JP S55161429A
Authority
JP
Japan
Prior art keywords
output
circuit
frequency
distributor
constitution
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.)
Granted
Application number
JP6846979A
Other languages
Japanese (ja)
Other versions
JPS5827699B2 (en
Inventor
Hiroyuki Kawahara
Ryohei Oba
Koichi Ito
Akio Goto
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.)
Toshiba Corp
Nippon Telegraph and Telephone Corp
Original Assignee
Toshiba Corp
Nippon Telegraph and Telephone Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Nippon Telegraph and Telephone Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP54068469A priority Critical patent/JPS5827699B2/en
Publication of JPS55161429A publication Critical patent/JPS55161429A/en
Publication of JPS5827699B2 publication Critical patent/JPS5827699B2/en
Expired 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)
  • Transceivers (AREA)

Abstract

PURPOSE:To make the whole of a unit small size to reduce current consumption, by changing the frequency constitution of a transmitter and receiver to use the high frequency part commonly in the angle modulating transmitting and receiving unit having a superheterodyne receiver. CONSTITUTION:The carrier wave generated by oscillating circuit 27 is given to phase modulating circuit 26 and is multiplied to a desired frequency by multiplying circuit 25 after modulated by a modulation signal of sound and so on. This multiplied output is distributed by distributor 24, and a part of it is transmitted from transmission antenna as a transmission wave, and another part is output as the first local signal of the first mixing circuit 22. In circuit 22, the output of distributor 24 and the receiving wave of antenna 21 are mixed to output the first intermediate frequency. The self-modulation signal of the first intermediate frequency output is cancelled by the second mixing circuit 23.
JP54068469A 1979-06-01 1979-06-01 Signal transmission/reception method Expired JPS5827699B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54068469A JPS5827699B2 (en) 1979-06-01 1979-06-01 Signal transmission/reception method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54068469A JPS5827699B2 (en) 1979-06-01 1979-06-01 Signal transmission/reception method

Publications (2)

Publication Number Publication Date
JPS55161429A true JPS55161429A (en) 1980-12-16
JPS5827699B2 JPS5827699B2 (en) 1983-06-10

Family

ID=13374573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54068469A Expired JPS5827699B2 (en) 1979-06-01 1979-06-01 Signal transmission/reception method

Country Status (1)

Country Link
JP (1) JPS5827699B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157229A (en) * 1982-03-15 1983-09-19 Matsushita Electric Works Ltd Bidirectional wireless device
JPS5921132A (en) * 1982-07-27 1984-02-03 Matsushita Electric Ind Co Ltd Interphone device
JPS59221035A (en) * 1983-05-31 1984-12-12 Yuniden Kk Radio transmitting and receiving device
JPS60196020A (en) * 1984-03-19 1985-10-04 Matsushita Electric Ind Co Ltd Radio communication device
EP0749214A2 (en) * 1995-06-15 1996-12-18 Murata Manufacturing Co., Ltd. Radio communication equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58157229A (en) * 1982-03-15 1983-09-19 Matsushita Electric Works Ltd Bidirectional wireless device
JPS5921132A (en) * 1982-07-27 1984-02-03 Matsushita Electric Ind Co Ltd Interphone device
JPS59221035A (en) * 1983-05-31 1984-12-12 Yuniden Kk Radio transmitting and receiving device
JPS60196020A (en) * 1984-03-19 1985-10-04 Matsushita Electric Ind Co Ltd Radio communication device
JPH0422370B2 (en) * 1984-03-19 1992-04-16 Matsushita Electric Ind Co Ltd
EP0749214A2 (en) * 1995-06-15 1996-12-18 Murata Manufacturing Co., Ltd. Radio communication equipment
EP0749214A3 (en) * 1995-06-15 2000-11-22 Murata Manufacturing Co., Ltd. Radio communication equipment

Also Published As

Publication number Publication date
JPS5827699B2 (en) 1983-06-10

Similar Documents

Publication Publication Date Title
CA2315489A1 (en) Radio communication apparatus and radio communication method
JPS54127209A (en) Structure system of radio equipment
CA2104729A1 (en) Quadrature Modulation Circuit for Use in a Radio Transmitter
JPS55161429A (en) Signal transmitting and receiving system
JPS5627584A (en) Two-way communication unit
JPS55118241A (en) Telephone unit
FR2283602A1 (en) Single oscillator microwave transceiver - has variable voltage oscillator feeding pH modulated signal to orthomode transducer
JPS5692480A (en) Radio wave transmitter
JPS5642448A (en) Radio transmission-reception system
JPS572145A (en) Radio transmission system
JPS5451404A (en) Fm radio telegraphy unit for mobile mounting
JPS55161430A (en) Radio communicating system
JPS5530227A (en) Communication system
JPS5579540A (en) Fsk radio unit
JPS6457832A (en) Switching device for transmission line
JPS5752244A (en) Transmission system
JPS5538725A (en) Transmitter/receiver
JPS5714766A (en) Transmission frequency shift system of radar
JPS57140043A (en) Repeater for multibeam satellite mounting
JPS5580948A (en) Fsk radio equipment
JPS57178435A (en) Fm transmitter and receiver
JPS55100795A (en) Remote control system
JPS57111150A (en) Radio communication system
JPS614330A (en) Radio equipment
JPS5673936A (en) S/n monitor