JPS57116434A - High-frequency branching device - Google Patents

High-frequency branching device

Info

Publication number
JPS57116434A
JPS57116434A JP56003682A JP368281A JPS57116434A JP S57116434 A JPS57116434 A JP S57116434A JP 56003682 A JP56003682 A JP 56003682A JP 368281 A JP368281 A JP 368281A JP S57116434 A JPS57116434 A JP S57116434A
Authority
JP
Japan
Prior art keywords
circuit
frequency
receiver
frequency signal
receivers
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
JP56003682A
Other languages
Japanese (ja)
Inventor
Yoshihiro Tanigawa
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 Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP56003682A priority Critical patent/JPS57116434A/en
Publication of JPS57116434A publication Critical patent/JPS57116434A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/10—Adaptations for transmission by electrical cable

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Details Of Television Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE:To decrease the attenuation extent of a high-frequency signal while saving electric power by interposing a power source circuit between a high-frequency branching circuit and one of receivers in a TV common-antenna system, etc., and by connecting the receiver in accordance with the supply state of the electric power. CONSTITUTION:A high-frequency signal from an antenna 1 is supplied from a booster 2 to a high-frequency branching circuit 21, and the high-frequency signal from the circuit 21 is supplied to receivers 4 and 6. In this case, a power-source circuit 5 which passes the high-frequency signal and powers up and booster 2 is interposed between the high-frequency output of the circuit and the receiver 6, and a switching means 29 which switches and leads a current from the circuit 5 is provided between the high-frequency input of the circuit 21 and the receivers 4 and 6. Then, the means 29 provides conduction between the high-frequency input of the circuit 21 and the receiver 6 when electric power is supplied from the circuit 5 or provides conduction between the high-frequency input of the circuit 21 and the receiver when not.
JP56003682A 1981-01-12 1981-01-12 High-frequency branching device Pending JPS57116434A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56003682A JPS57116434A (en) 1981-01-12 1981-01-12 High-frequency branching device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56003682A JPS57116434A (en) 1981-01-12 1981-01-12 High-frequency branching device

Publications (1)

Publication Number Publication Date
JPS57116434A true JPS57116434A (en) 1982-07-20

Family

ID=11564166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56003682A Pending JPS57116434A (en) 1981-01-12 1981-01-12 High-frequency branching device

Country Status (1)

Country Link
JP (1) JPS57116434A (en)

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