JPS55100795A - Remote control system - Google Patents

Remote control system

Info

Publication number
JPS55100795A
JPS55100795A JP846379A JP846379A JPS55100795A JP S55100795 A JPS55100795 A JP S55100795A JP 846379 A JP846379 A JP 846379A JP 846379 A JP846379 A JP 846379A JP S55100795 A JPS55100795 A JP S55100795A
Authority
JP
Japan
Prior art keywords
control
modulated
pulse
circuit
frequencies
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
JP846379A
Other languages
Japanese (ja)
Inventor
Akira Ichimura
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 JP846379A priority Critical patent/JPS55100795A/en
Publication of JPS55100795A publication Critical patent/JPS55100795A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C15/00—Arrangements characterised by the use of multiplexing for the transmission of a plurality of signals over a common path

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To simplify the formation of a control signal wave and also to control several controlled circuits by one control signal wave by sending out control pulses obtained by combining modulated waves with specific frequencies assigned and showing controlled variables by pulse widths. CONSTITUTION:Control pulses P0-P5 are generated by pulse generating circuit 12 on the basis of the set value of control regulator 13 and corresponding to clock pulses of control generating circuit 41, they are converted at gate circuit 42 by frequency oscillator 46 into modulated-wave pulses of frequencies f1-f3, which are sent to modulation circuit 43. The output of circuit 43 is radiated from transmitting antenna 17 by way of high-frequency amplifier circuit 16. This radiated radio wave is so generated that the 1st control pulse is modulated by three kinds of modulated waves of frequencies f1-f3 to include components of pulse widths t0-t2 at the same time, and the 2nd control pulse is modulated by two kinds of modulated waves of frequencies f1 and f2 to include components of pulse widths t4 and t5 at the same time. Thus, six controlled circuits can be brought under control at the reception side.
JP846379A 1979-01-27 1979-01-27 Remote control system Pending JPS55100795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP846379A JPS55100795A (en) 1979-01-27 1979-01-27 Remote control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP846379A JPS55100795A (en) 1979-01-27 1979-01-27 Remote control system

Publications (1)

Publication Number Publication Date
JPS55100795A true JPS55100795A (en) 1980-07-31

Family

ID=11693818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP846379A Pending JPS55100795A (en) 1979-01-27 1979-01-27 Remote control system

Country Status (1)

Country Link
JP (1) JPS55100795A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132468A (en) * 1985-12-05 1987-06-15 Matsushita Electric Ind Co Ltd Remote control equipment utilizing telephone line
US5319797A (en) * 1992-09-17 1994-06-07 Rockwell International Corporation Remote vehicle access featuring high security

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988410A (en) * 1972-12-25 1974-08-23
JPS5249717A (en) * 1975-10-17 1977-04-21 Fujitsu Ltd Secondary carrier wave superposition pcm-im transmission system
JPS5269506A (en) * 1975-12-08 1977-06-09 Fujitsu Ltd Secondary carrier wave piling pcm-im communication system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4988410A (en) * 1972-12-25 1974-08-23
JPS5249717A (en) * 1975-10-17 1977-04-21 Fujitsu Ltd Secondary carrier wave superposition pcm-im transmission system
JPS5269506A (en) * 1975-12-08 1977-06-09 Fujitsu Ltd Secondary carrier wave piling pcm-im communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62132468A (en) * 1985-12-05 1987-06-15 Matsushita Electric Ind Co Ltd Remote control equipment utilizing telephone line
US5319797A (en) * 1992-09-17 1994-06-07 Rockwell International Corporation Remote vehicle access featuring high security

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