JPS556910A - Repeating transmission system for television signal - Google Patents

Repeating transmission system for television signal

Info

Publication number
JPS556910A
JPS556910A JP7863478A JP7863478A JPS556910A JP S556910 A JPS556910 A JP S556910A JP 7863478 A JP7863478 A JP 7863478A JP 7863478 A JP7863478 A JP 7863478A JP S556910 A JPS556910 A JP S556910A
Authority
JP
Japan
Prior art keywords
signals
supplied
carrier wave
signal carrier
converter
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.)
Granted
Application number
JP7863478A
Other languages
Japanese (ja)
Other versions
JPS6113431B2 (en
Inventor
Hitoshi Kitagawa
Nobuo Hikasa
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.)
Hitachi Denshi KK
Original Assignee
Hitachi Denshi KK
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 Hitachi Denshi KK filed Critical Hitachi Denshi KK
Priority to JP7863478A priority Critical patent/JPS556910A/en
Publication of JPS556910A publication Critical patent/JPS556910A/en
Publication of JPS6113431B2 publication Critical patent/JPS6113431B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/10—Intermediate station arrangements, e.g. for branching, for tapping-off

Abstract

PURPOSE:To realize a low-cost repeating transmission system for the TV signals which features a high using efficiency of the microwave band channel along with the improved transmission characteristics. CONSTITUTION:Compounding unit 4 delivers the 1st and 2nd TV signals the frequencies of which are divided and multiplied at the intermediate frequency, and these TV signals are supplied to converter 5 and then converted into the signals of the 3rd channel of the microwave band to be transmitted through antenna 6. The transmitted signals are supplied to converter 8 through antenna 7 to be converted into the TV signals of intermediated frequency, and the output of converter 8 is supplied to distributor 9. Distributor 9 applies the same two output to BPF10a and 10b each, which select and deliver the 1st and 2nd TV signals of the intermediate frequency each. These TV signals are supplied to FM demodulators 11a and 11b respectively to obtain the TV signals of the standard system. Then demodulator 11a delivers video signal carrier wave fA1 and aural signal carrier wave fV1; and demodulator 11b delivers video signal carrier wave fA2 and aural signal carrier wave fV2 respectively.
JP7863478A 1978-06-30 1978-06-30 Repeating transmission system for television signal Granted JPS556910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7863478A JPS556910A (en) 1978-06-30 1978-06-30 Repeating transmission system for television signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7863478A JPS556910A (en) 1978-06-30 1978-06-30 Repeating transmission system for television signal

Publications (2)

Publication Number Publication Date
JPS556910A true JPS556910A (en) 1980-01-18
JPS6113431B2 JPS6113431B2 (en) 1986-04-14

Family

ID=13667293

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7863478A Granted JPS556910A (en) 1978-06-30 1978-06-30 Repeating transmission system for television signal

Country Status (1)

Country Link
JP (1) JPS556910A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03104920U (en) * 1990-02-15 1991-10-30

Also Published As

Publication number Publication date
JPS6113431B2 (en) 1986-04-14

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