JPS56111330A - Tuner device - Google Patents

Tuner device

Info

Publication number
JPS56111330A
JPS56111330A JP1437780A JP1437780A JPS56111330A JP S56111330 A JPS56111330 A JP S56111330A JP 1437780 A JP1437780 A JP 1437780A JP 1437780 A JP1437780 A JP 1437780A JP S56111330 A JPS56111330 A JP S56111330A
Authority
JP
Japan
Prior art keywords
signal
terminal
mixer
shf
band
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
JP1437780A
Other languages
Japanese (ja)
Inventor
Junji Sato
Sakuro Kuroda
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP1437780A priority Critical patent/JPS56111330A/en
Publication of JPS56111330A publication Critical patent/JPS56111330A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/16—Multiple-frequency-changing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To receive a VHF signal, UHF signal and further SHF signal only by providing a double conversion type turner with a switch. CONSTITUTION:A VHF or UHF signal inputted from terminal 1 is selected according to band switching and amplified by wide band amplifier 3. This signal is applied to the 1st mixer 4 and converted into a signal of a frequency close to the SHF band by a local oscillation signal from local oscillator 5 whose oscillation frequency is varied by a tuning voltage, and then the signal is led to the 2nd frequency converting mixer 7 via switch circuit 11. The input is converted by mixer 7 into a signal of a prescribed low frequency, which is led out from terminal 10. To receive a signal of the SHF band, a switching voltage is applied to terminal 13 and the SHF signal from terminal 12 is selectively led to the 2nd mixer 7, thereby obtaining the signal from terminal 10 similarly.
JP1437780A 1980-02-07 1980-02-07 Tuner device Pending JPS56111330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1437780A JPS56111330A (en) 1980-02-07 1980-02-07 Tuner device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1437780A JPS56111330A (en) 1980-02-07 1980-02-07 Tuner device

Publications (1)

Publication Number Publication Date
JPS56111330A true JPS56111330A (en) 1981-09-03

Family

ID=11859351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1437780A Pending JPS56111330A (en) 1980-02-07 1980-02-07 Tuner device

Country Status (1)

Country Link
JP (1) JPS56111330A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099613A (en) * 1973-12-29 1975-08-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5099613A (en) * 1973-12-29 1975-08-07

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