JPS54156146A - Indoor power line carrier system - Google Patents

Indoor power line carrier system

Info

Publication number
JPS54156146A
JPS54156146A JP6598478A JP6598478A JPS54156146A JP S54156146 A JPS54156146 A JP S54156146A JP 6598478 A JP6598478 A JP 6598478A JP 6598478 A JP6598478 A JP 6598478A JP S54156146 A JPS54156146 A JP S54156146A
Authority
JP
Japan
Prior art keywords
transmitter
circuit
power line
signal
indoor power
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
JP6598478A
Other languages
Japanese (ja)
Inventor
Toshio Abiko
Yoshiharu Suzuki
Kensaburo Tanemura
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 JP6598478A priority Critical patent/JPS54156146A/en
Publication of JPS54156146A publication Critical patent/JPS54156146A/en
Pending legal-status Critical Current

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Selective Calling Equipment (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Time-Division Multiplex Systems (AREA)

Abstract

PURPOSE: To check to see if the routine operation is normal or not by allowing the respective transmitters to receive the start signal immediately before each transmission of information by the transmitters.
CONSTITUTION: A transmitter 1 is provided with a final control element 1a to be driven by a manual switch, a disaster prevention sensor or the like and an osicllation circuit 1b which is actuated to oscillate a given signal by the output of the control element 1b in such a manner as to overlap the indoor power line l. A receiver 2 has a counter circuit 26 for counting the binary signal from the transmitter 1, a reference frequency oscillation circuit 2c, a comparison circuit 2d and an output circut 2a for emanating the signal to activate the load. The transmitter 1, combined with a transmitting function, can check whether it normally receive signals transmitted by itself.
COPYRIGHT: (C)1979,JPO&Japio
JP6598478A 1978-05-31 1978-05-31 Indoor power line carrier system Pending JPS54156146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6598478A JPS54156146A (en) 1978-05-31 1978-05-31 Indoor power line carrier system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6598478A JPS54156146A (en) 1978-05-31 1978-05-31 Indoor power line carrier system

Publications (1)

Publication Number Publication Date
JPS54156146A true JPS54156146A (en) 1979-12-08

Family

ID=13302771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6598478A Pending JPS54156146A (en) 1978-05-31 1978-05-31 Indoor power line carrier system

Country Status (1)

Country Link
JP (1) JPS54156146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069796A1 (en) * 2002-02-13 2003-08-21 Sumitomo Electric Industries, Ltd. Power line carrier communication modem

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003069796A1 (en) * 2002-02-13 2003-08-21 Sumitomo Electric Industries, Ltd. Power line carrier communication modem

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