JPS5238807A - Signal transmission unit - Google Patents

Signal transmission unit

Info

Publication number
JPS5238807A
JPS5238807A JP11364375A JP11364375A JPS5238807A JP S5238807 A JPS5238807 A JP S5238807A JP 11364375 A JP11364375 A JP 11364375A JP 11364375 A JP11364375 A JP 11364375A JP S5238807 A JPS5238807 A JP S5238807A
Authority
JP
Japan
Prior art keywords
transmission unit
signal transmission
keeping
enable
changes
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
JP11364375A
Other languages
Japanese (ja)
Inventor
Atsuhiro Yoshizaki
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 Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP11364375A priority Critical patent/JPS5238807A/en
Publication of JPS5238807A publication Critical patent/JPS5238807A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • H04B3/542—Systems for transmission via power distribution lines the information being in digital form
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5425—Methods of transmitting or receiving signals via power distribution lines improving S/N by matching impedance, noise reduction, gain control

Abstract

PURPOSE:To enable a stable operation depending on the changes in load current by keeping the voltage receiving level due to line impedance by providing the constant current circuit at the sending side.
JP11364375A 1975-09-22 1975-09-22 Signal transmission unit Pending JPS5238807A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11364375A JPS5238807A (en) 1975-09-22 1975-09-22 Signal transmission unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11364375A JPS5238807A (en) 1975-09-22 1975-09-22 Signal transmission unit

Publications (1)

Publication Number Publication Date
JPS5238807A true JPS5238807A (en) 1977-03-25

Family

ID=14617428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11364375A Pending JPS5238807A (en) 1975-09-22 1975-09-22 Signal transmission unit

Country Status (1)

Country Link
JP (1) JPS5238807A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885649A (en) * 1981-11-02 1983-05-23 ハネウエル・インコ−ポレ−テツド Data communication device and method of alternately communicating digital and analog data
JPS58100225U (en) * 1981-12-28 1983-07-07 ダイハツ工業株式会社 Fuel injection pump mounting structure
JPS60260236A (en) * 1984-06-07 1985-12-23 Nippon Soken Inc Method and apparatus for transmitting power and information for vehicle
JP2002271426A (en) * 2001-03-13 2002-09-20 Takata Corp Method for transmitting control signal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5885649A (en) * 1981-11-02 1983-05-23 ハネウエル・インコ−ポレ−テツド Data communication device and method of alternately communicating digital and analog data
JPH0447358B2 (en) * 1981-11-02 1992-08-03 Honeywell Inc
JPS58100225U (en) * 1981-12-28 1983-07-07 ダイハツ工業株式会社 Fuel injection pump mounting structure
JPS6220668Y2 (en) * 1981-12-28 1987-05-26
JPS60260236A (en) * 1984-06-07 1985-12-23 Nippon Soken Inc Method and apparatus for transmitting power and information for vehicle
JPH0471370B2 (en) * 1984-06-07 1992-11-13 Nippon Jidosha Buhin Sogo Kenkyusho Kk
JP2002271426A (en) * 2001-03-13 2002-09-20 Takata Corp Method for transmitting control signal
JP4544768B2 (en) * 2001-03-13 2010-09-15 タカタ株式会社 Airbag deployment control system

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