JPS57210734A - Receiving system for television tuner - Google Patents

Receiving system for television tuner

Info

Publication number
JPS57210734A
JPS57210734A JP9550181A JP9550181A JPS57210734A JP S57210734 A JPS57210734 A JP S57210734A JP 9550181 A JP9550181 A JP 9550181A JP 9550181 A JP9550181 A JP 9550181A JP S57210734 A JPS57210734 A JP S57210734A
Authority
JP
Japan
Prior art keywords
signal
stage
uhf
vhf
local oscillation
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
JP9550181A
Other languages
Japanese (ja)
Inventor
Yasutoshi Morinishi
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.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Sanyo Denki 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 Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP9550181A priority Critical patent/JPS57210734A/en
Publication of JPS57210734A publication Critical patent/JPS57210734A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To improve the ability of interference exclusion, by switching a changeover switch according to each reception of a UHF and VHF band and constituting the system as a single and double conversion. CONSTITUTION:A signal from an antenna 1 is applied at an input high frequency stage 2, the signal is separated at a UHF and VHF filter 3, the UHF is applied to the 1st amplifying stage 4 and the VHF is applied to a VHF tuner 12. Since a changeover switch 5 is set to the U side at the UHF, a UHF signal is applied to a UHF tuner 6 and after the signal is selected and tuned at an input tuning circuit 7, the signal is amplified at the 2nd amplifying stage 8. The output signal is applied to a mixing stage 10 together with the local oscillation output of a local oscillation stage 11 via an inter-stage tuning circuit 9. The switch 5 is changed over to the V side at the VHF. A VHF signal is applied to a mixing stage 15 with the output of a local oscillation stage via an intermediate frequency signal trap circuit 13 and an FM signal trap circuit 14.
JP9550181A 1981-06-19 1981-06-19 Receiving system for television tuner Pending JPS57210734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9550181A JPS57210734A (en) 1981-06-19 1981-06-19 Receiving system for television tuner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9550181A JPS57210734A (en) 1981-06-19 1981-06-19 Receiving system for television tuner

Publications (1)

Publication Number Publication Date
JPS57210734A true JPS57210734A (en) 1982-12-24

Family

ID=14139337

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9550181A Pending JPS57210734A (en) 1981-06-19 1981-06-19 Receiving system for television tuner

Country Status (1)

Country Link
JP (1) JPS57210734A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615632A (en) * 1984-06-20 1986-01-11 Matsushita Electric Ind Co Ltd Television tuner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS615632A (en) * 1984-06-20 1986-01-11 Matsushita Electric Ind Co Ltd Television tuner

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