JPS56165427A - Radio receiving device - Google Patents

Radio receiving device

Info

Publication number
JPS56165427A
JPS56165427A JP6940780A JP6940780A JPS56165427A JP S56165427 A JPS56165427 A JP S56165427A JP 6940780 A JP6940780 A JP 6940780A JP 6940780 A JP6940780 A JP 6940780A JP S56165427 A JPS56165427 A JP S56165427A
Authority
JP
Japan
Prior art keywords
amplifiers
receiving device
lincompex
demodulator
amplified
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.)
Pending
Application number
JP6940780A
Other languages
Japanese (ja)
Inventor
Hiroshi Haruki
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6940780A priority Critical patent/JPS56165427A/en
Publication of JPS56165427A publication Critical patent/JPS56165427A/en
Pending 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
    • H04B1/62—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 for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio
    • H04B1/64—Volume compression or expansion arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Circuits Of Receivers In General (AREA)

Abstract

PURPOSE:To realize a voice reproduction with a high quality for a receiving device of lincompex radio telephone system, by carrying out the process at and after the IF stage in separation into a voice channel and a control channel. CONSTITUTION:The arrived signal is amplified by an RF amplifier 1 and then converted into an intermediate frequency by a mixer 2 and the 1st local oscillator 8. This converted signal is separated into a voice channel and a control channel through filters 10 and 13 and amplified by IF amplifiers 11 and 14 respectively to be supplied to a demodulator 5. The output of a carrier oscillator 9 is injected to the other terminal of the demodulator, and the outputs of the amplifiers 11 and 14 are demodulated to the AF band. The signals of both amplifiers are synthesized at a lincompex demodulating part to reproduce an aural output.
JP6940780A 1980-05-23 1980-05-23 Radio receiving device Pending JPS56165427A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6940780A JPS56165427A (en) 1980-05-23 1980-05-23 Radio receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6940780A JPS56165427A (en) 1980-05-23 1980-05-23 Radio receiving device

Publications (1)

Publication Number Publication Date
JPS56165427A true JPS56165427A (en) 1981-12-19

Family

ID=13401711

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6940780A Pending JPS56165427A (en) 1980-05-23 1980-05-23 Radio receiving device

Country Status (1)

Country Link
JP (1) JPS56165427A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912708A (en) * 1972-05-15 1974-02-04
JPS4948217A (en) * 1972-09-13 1974-05-10
JPS5138802A (en) * 1974-09-27 1976-03-31 Juseidaijin RINKONPETSUKUSURIKUJOIDOMUSENDENWAHOSHIKI

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912708A (en) * 1972-05-15 1974-02-04
JPS4948217A (en) * 1972-09-13 1974-05-10
JPS5138802A (en) * 1974-09-27 1976-03-31 Juseidaijin RINKONPETSUKUSURIKUJOIDOMUSENDENWAHOSHIKI

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