JPS5493314A - Transmission and reception system - Google Patents

Transmission and reception system

Info

Publication number
JPS5493314A
JPS5493314A JP8730978A JP8730978A JPS5493314A JP S5493314 A JPS5493314 A JP S5493314A JP 8730978 A JP8730978 A JP 8730978A JP 8730978 A JP8730978 A JP 8730978A JP S5493314 A JPS5493314 A JP S5493314A
Authority
JP
Japan
Prior art keywords
signal
circuit
oscillator
produced
station
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
JP8730978A
Other languages
Japanese (ja)
Other versions
JPS5433085B2 (en
Inventor
Masanao Owaki
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP8730978A priority Critical patent/JPS5493314A/en
Publication of JPS5493314A publication Critical patent/JPS5493314A/en
Publication of JPS5433085B2 publication Critical patent/JPS5433085B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE:To establish transceivers which can call only specific station among three or more stations, by simultaneously transmitting the station selection signal specific to station, signal modulating the subcarrier with audio signal by means of side band amplitude modulation, and demodulation pilot signal. CONSTITUTION:At the transmission side, the channel selection signal Ss is produced with the switch 13 and the oscillator 12, and the call out signal Sc from the oscillator 15 is inputted to the balanced modulation circuit 17 with the switch positioned to C. Further, the pilot signal Sp is produced at the oscillator 18, and it is fed to the circuit 17 as subcarrier with multiplication 19. The side band amplitude modulation signal of the signal Sc is produced and it is inputted to the mixing circuit 14 with the signals Sp and Ss. The circuit 14 produces the mixing signal Sx and this is transmitted with frequency modulation. At the reception side, it is demodulated into the signal Sx with the demodulator 33, and the output from the muting circuit 34 is separated into the signals Sp, Ss, and Sc with the filters 36, 38, 39, 43, 41, 44 and the demodulation circuit 37, and the signal Sc is demodulated into call out signal with the muting circuit 42. Aftre calling out, the switch 11 is selected to T position at the transmission side, and it is transmitted with the audio signal Sa.
JP8730978A 1978-07-18 1978-07-18 Transmission and reception system Granted JPS5493314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8730978A JPS5493314A (en) 1978-07-18 1978-07-18 Transmission and reception system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8730978A JPS5493314A (en) 1978-07-18 1978-07-18 Transmission and reception system

Publications (2)

Publication Number Publication Date
JPS5493314A true JPS5493314A (en) 1979-07-24
JPS5433085B2 JPS5433085B2 (en) 1979-10-18

Family

ID=13911225

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8730978A Granted JPS5493314A (en) 1978-07-18 1978-07-18 Transmission and reception system

Country Status (1)

Country Link
JP (1) JPS5493314A (en)

Also Published As

Publication number Publication date
JPS5433085B2 (en) 1979-10-18

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