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JPS54144571A - Remote control system - Google Patents

Remote control system

Info

Publication number
JPS54144571A
JPS54144571A JP5298278A JP5298278A JPS54144571A JP S54144571 A JPS54144571 A JP S54144571A JP 5298278 A JP5298278 A JP 5298278A JP 5298278 A JP5298278 A JP 5298278A JP S54144571 A JPS54144571 A JP S54144571A
Authority
JP
Japan
Prior art keywords
signals
control signals
frequency
oscillator
reception side
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
JP5298278A
Other languages
Japanese (ja)
Inventor
Takayuki Hamahata
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.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo 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 Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP5298278A priority Critical patent/JPS54144571A/en
Publication of JPS54144571A publication Critical patent/JPS54144571A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C23/00—Non-electrical signal transmission systems, e.g. optical systems
    • G08C23/02—Non-electrical signal transmission systems, e.g. optical systems using infrasonic, sonic or ultrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Details Of Television Systems (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To simply prevent false operation, by forming remote control signals by combining key signals shaped by FM modulating carrier waves by specified frequency and control signals formed by FM modulation by information signals. CONSTITUTION:When operating one of the operating buttons of a drive portion, a power source of s teansmitter is made while drive dignals are fed to a timing circuit 15 from a drive portion 12. The timing circuit 15 works an oscillator 13, and operates a frequency demultiplier 14. Thus, key signals formed by FM modulating the oscillating frequency of an unstable multivibrator by signals from an oscillator 16 by means of a FM modulator 18 and control signals FM modulated by the output of the frequency demultiplier 14 are obtained. These signals are transmitted from a transmitting mike 20 through an output amplifier 19. The key signals are received and brought to a control-possible condition at the reception side, and the reception side is controlled by the control signals.
JP5298278A 1978-04-28 1978-04-28 Remote control system Pending JPS54144571A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5298278A JPS54144571A (en) 1978-04-28 1978-04-28 Remote control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5298278A JPS54144571A (en) 1978-04-28 1978-04-28 Remote control system

Publications (1)

Publication Number Publication Date
JPS54144571A true JPS54144571A (en) 1979-11-10

Family

ID=12930102

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5298278A Pending JPS54144571A (en) 1978-04-28 1978-04-28 Remote control system

Country Status (1)

Country Link
JP (1) JPS54144571A (en)

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