JPS5513562A - Remote control unit using acoustic wave as medium - Google Patents

Remote control unit using acoustic wave as medium

Info

Publication number
JPS5513562A
JPS5513562A JP8608178A JP8608178A JPS5513562A JP S5513562 A JPS5513562 A JP S5513562A JP 8608178 A JP8608178 A JP 8608178A JP 8608178 A JP8608178 A JP 8608178A JP S5513562 A JPS5513562 A JP S5513562A
Authority
JP
Japan
Prior art keywords
output
signals
circuit
remote control
prescribed time
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
JP8608178A
Other languages
Japanese (ja)
Inventor
Itsuki Ban
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP8608178A priority Critical patent/JPS5513562A/en
Publication of JPS5513562A publication Critical patent/JPS5513562A/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)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To use sound signals and electric circuits to perform the remote control by taking out signals near the upper limit of audio frequency signals and obtaining outputs continuously for a prescribed time and outputting only signals which continue over a set time. CONSTITUTION:The output of microphone 1 is amplified by 2, and signals, for example, below 5K Hz are cut off by filter 3. Transistor TrQ is non-conductive by the output, and the output is sent to AND circuit 28 continuously for a prescribed time from the leading edge of the output of circuit 2 through capacitor 35, trigger diode 36 and Tr8. Meanwhile, output signals of filter 3 are shaped by 27, and differentiating pulses are inputted to monostable circuit 29 at the leading edge of them, and a short output is given to circuit 28 at the trailing edge only when a set time is long. Then, the output of circuit 28 controls the conduction of load 14 through FF 37. As a result, this unit does not react to a strong impulsive sound but reacts well signals which continue for a prescribed time even if they are weak, so that electric circuits can be used to perform the remote control.
JP8608178A 1978-07-17 1978-07-17 Remote control unit using acoustic wave as medium Pending JPS5513562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8608178A JPS5513562A (en) 1978-07-17 1978-07-17 Remote control unit using acoustic wave as medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8608178A JPS5513562A (en) 1978-07-17 1978-07-17 Remote control unit using acoustic wave as medium

Publications (1)

Publication Number Publication Date
JPS5513562A true JPS5513562A (en) 1980-01-30

Family

ID=13876745

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8608178A Pending JPS5513562A (en) 1978-07-17 1978-07-17 Remote control unit using acoustic wave as medium

Country Status (1)

Country Link
JP (1) JPS5513562A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574592B1 (en) 1999-03-19 2003-06-03 Kabushiki Kaisha Toshiba Voice detecting and voice control system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574592B1 (en) 1999-03-19 2003-06-03 Kabushiki Kaisha Toshiba Voice detecting and voice control system

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