JPS5728436A - Line coupler for power line carrier communication device - Google Patents

Line coupler for power line carrier communication device

Info

Publication number
JPS5728436A
JPS5728436A JP10347880A JP10347880A JPS5728436A JP S5728436 A JPS5728436 A JP S5728436A JP 10347880 A JP10347880 A JP 10347880A JP 10347880 A JP10347880 A JP 10347880A JP S5728436 A JPS5728436 A JP S5728436A
Authority
JP
Japan
Prior art keywords
line
band filter
bridge
coupler
communication device
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
JP10347880A
Other languages
Japanese (ja)
Other versions
JPS6139774B2 (en
Inventor
Tadashi Kihara
Kenji Kobayashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP10347880A priority Critical patent/JPS5728436A/en
Publication of JPS5728436A publication Critical patent/JPS5728436A/en
Publication of JPS6139774B2 publication Critical patent/JPS6139774B2/ja
Granted 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
    • H04B3/56—Circuits for coupling, blocking, or by-passing of signals
    • 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
    • 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
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5483—Systems for power line communications using coupling circuits
    • 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
    • H04B2203/5462—Systems for power line communications
    • H04B2203/5491—Systems for power line communications using filtering and bypassing

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To achive the simplicity of adjustment of matching between the device and line, reduction in the number of filters used, and effective use of line frequency, by using a transmission band filter and an unbalanced hybrid. CONSTITUTION:An unbalanced type hybrid in which a bridge taking a balanced connection network 7, transformer T1 connected to a line 4, and impedance elements Z1, Z2 as sides is formed, is used and a coupler is constituted by connecting a transmission band filter 2 and a transformer T2 to obtain reception signals between opposing points of the bridge circuit. In this case, each impedance is determined to obtain the relation of ZB>(ZLXZ2)<1/2>>Z1 as the condition of the bridge. Thus, a transmission signal is avoided from turning around to a reception output terminal by using only one band filter, and the unmatching due to line variance can be compensated with the adjustment of a balanced connection network.
JP10347880A 1980-07-28 1980-07-28 Line coupler for power line carrier communication device Granted JPS5728436A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10347880A JPS5728436A (en) 1980-07-28 1980-07-28 Line coupler for power line carrier communication device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10347880A JPS5728436A (en) 1980-07-28 1980-07-28 Line coupler for power line carrier communication device

Publications (2)

Publication Number Publication Date
JPS5728436A true JPS5728436A (en) 1982-02-16
JPS6139774B2 JPS6139774B2 (en) 1986-09-05

Family

ID=14355112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10347880A Granted JPS5728436A (en) 1980-07-28 1980-07-28 Line coupler for power line carrier communication device

Country Status (1)

Country Link
JP (1) JPS5728436A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246270A (en) * 1985-02-22 1986-11-01 エクソン　ケミカル　パテンツ　インコ−ポレ−テツド Road marking composition
US4690958A (en) * 1985-02-22 1987-09-01 Exxon Chemical Patents Inc. Road marking compositions
WO2003030398A1 (en) * 2001-09-28 2003-04-10 Sumitomo Electric Industries, Ltd. Hybrid circuit and power line convey modem using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61246270A (en) * 1985-02-22 1986-11-01 エクソン　ケミカル　パテンツ　インコ−ポレ−テツド Road marking composition
US4690958A (en) * 1985-02-22 1987-09-01 Exxon Chemical Patents Inc. Road marking compositions
WO2003030398A1 (en) * 2001-09-28 2003-04-10 Sumitomo Electric Industries, Ltd. Hybrid circuit and power line convey modem using the same

Also Published As

Publication number Publication date
JPS6139774B2 (en) 1986-09-05

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