JPS5765027A - Broad band reception tuner - Google Patents

Broad band reception tuner

Info

Publication number
JPS5765027A
JPS5765027A JP55141698A JP14169880A JPS5765027A JP S5765027 A JPS5765027 A JP S5765027A JP 55141698 A JP55141698 A JP 55141698A JP 14169880 A JP14169880 A JP 14169880A JP S5765027 A JPS5765027 A JP S5765027A
Authority
JP
Japan
Prior art keywords
tuner
reception
terminal
broad band
cable
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
JP55141698A
Other languages
Japanese (ja)
Inventor
Mitsuo Saito
Sadahiko Yamashita
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 JP55141698A priority Critical patent/JPS5765027A/en
Priority to US06/306,854 priority patent/US4419768A/en
Publication of JPS5765027A publication Critical patent/JPS5765027A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/24—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection
    • H03J5/242—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with a number of separate pretuned tuning circuits or separate tuning elements selectively brought into circuit, e.g. for waveband selection or for television channel selection used exclusively for band selection

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

PURPOSE:To prevent the production of a spurious signal and to receive signals of broad band stably with simple constitution, by taking a cable TV as a duplex mixing system, in receiving broad band of each channel of VHF, cable TV and UHF. CONSTITUTION:The 1st VHF channel input terminal 16 is connected to a VHF tuner 2, and an IF output terminal 7 is connected to the tuner 2. A CATV tuner 4 is connected to the 2nd cable TVCATV channel input terminal 17, a switching circuit 23 connected to the post stage of a tuner 4 is connected to the 3rd UHF channel input terminal 18, the circuit 23 is connected to a UHF tuner 5, and this tuner 5 is connected to the tuner 2. At the reception of input signal from a terminal 17, the tuner 4 is for the reception of upper side wave of differential type and the tuner 5 is for the reception of lower side waves. At the reception of input signal from a terminal 18, the tuner 5 is operated for the reception of upper side waves of differential type, allowing to suppress the production of spurious signals with simple constitution.
JP55141698A 1980-09-30 1980-10-08 Broad band reception tuner Pending JPS5765027A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP55141698A JPS5765027A (en) 1980-10-08 1980-10-08 Broad band reception tuner
US06/306,854 US4419768A (en) 1980-09-30 1981-09-29 Wideband tuner for VHF, CATV and UHF television signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55141698A JPS5765027A (en) 1980-10-08 1980-10-08 Broad band reception tuner

Publications (1)

Publication Number Publication Date
JPS5765027A true JPS5765027A (en) 1982-04-20

Family

ID=15298121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55141698A Pending JPS5765027A (en) 1980-09-30 1980-10-08 Broad band reception tuner

Country Status (1)

Country Link
JP (1) JPS5765027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232647U (en) * 1985-08-09 1987-02-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232647U (en) * 1985-08-09 1987-02-26

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