JPS57101484A - Uhf transmission system in catv system - Google Patents

Uhf transmission system in catv system

Info

Publication number
JPS57101484A
JPS57101484A JP17721880A JP17721880A JPS57101484A JP S57101484 A JPS57101484 A JP S57101484A JP 17721880 A JP17721880 A JP 17721880A JP 17721880 A JP17721880 A JP 17721880A JP S57101484 A JPS57101484 A JP S57101484A
Authority
JP
Japan
Prior art keywords
vhf
signal
feeder
amplifier
uhf
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
JP17721880A
Other languages
Japanese (ja)
Inventor
Akira Ando
Akira Tagawa
Hiroyuki Ishiwatari
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.)
MIHARU TSUUSHIN KK
Miharu Communications Co Ltd
Original Assignee
MIHARU TSUUSHIN KK
Miharu Communications 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 MIHARU TSUUSHIN KK, Miharu Communications Co Ltd filed Critical MIHARU TSUUSHIN KK
Priority to JP17721880A priority Critical patent/JPS57101484A/en
Publication of JPS57101484A publication Critical patent/JPS57101484A/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)

Abstract

PURPOSE:To convert a middle band signal in VHF to that of, UHF at the terminal of band and to simplify the system, by transmitting a TV signal and a middle band signal converting UHF signal into VHF signal on a feeder and branching the signals at a VHF feeder branching amplifier. CONSTITUTION:A TV signal of each VHF channel and a middle band signal converting UHF signal into VHF signal are transferred to a feeder 2, and the signals are branched at a VHF feeder branch amplifier 7. The VHF signal branched at the amplifier 7 is branched into a desired several steps while being the VHF band at the amplifier 7, the middle band signal in the VHF is converted into the UHF band with a feeder branch amplifier 3 with an up converter and applied to subscribers with TV use VHF. Without giving any adverse effect on audio multiplex broadcast, reguiring no converter provided to each home to simplify the cable TV system.
JP17721880A 1980-12-17 1980-12-17 Uhf transmission system in catv system Pending JPS57101484A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17721880A JPS57101484A (en) 1980-12-17 1980-12-17 Uhf transmission system in catv system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17721880A JPS57101484A (en) 1980-12-17 1980-12-17 Uhf transmission system in catv system

Publications (1)

Publication Number Publication Date
JPS57101484A true JPS57101484A (en) 1982-06-24

Family

ID=16027218

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17721880A Pending JPS57101484A (en) 1980-12-17 1980-12-17 Uhf transmission system in catv system

Country Status (1)

Country Link
JP (1) JPS57101484A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003077553A (en) * 2001-09-05 2003-03-14 Fujikura Ltd Connector for coated wire connection

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033721A (en) * 1973-07-26 1975-04-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5033721A (en) * 1973-07-26 1975-04-01

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003077553A (en) * 2001-09-05 2003-03-14 Fujikura Ltd Connector for coated wire connection

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