JPS57199391A - Remote controller - Google Patents

Remote controller

Info

Publication number
JPS57199391A
JPS57199391A JP8465481A JP8465481A JPS57199391A JP S57199391 A JPS57199391 A JP S57199391A JP 8465481 A JP8465481 A JP 8465481A JP 8465481 A JP8465481 A JP 8465481A JP S57199391 A JPS57199391 A JP S57199391A
Authority
JP
Japan
Prior art keywords
circuit
slave
frequency
slave set
resonance frequency
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
JP8465481A
Other languages
Japanese (ja)
Inventor
Takeshi Kuriyama
Takashi Ikehara
Akira Kurita
Takashi Miyahara
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP8465481A priority Critical patent/JPS57199391A/en
Publication of JPS57199391A publication Critical patent/JPS57199391A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • H04Q9/08—Calling by using continuous ac

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To eliminate the need for a battery incorporated in a slave device, by the constitution that the slave set has a tank circuit and a master set is provided with a means detecting the resonance frequency of the slave set. CONSTITUTION:A slave set 2 has an LC circuit 1 which can change the resonance frequency. When an oscillation circuit 4 of the master set is swept from a frequency f1 to f2, resonance takes place at the resonance frequency f0 of the LC circuit 1 of the slave set 2 and the output of the circuit 4 is increased. This increased point is detected at a detection circuit 5, the instruction corresponding to the frequency f0 is discriminated, a control circuit 6 is operated and the circuit 6 controls a control variable. Further, as a coupling element, electrostatic or acoustic element as well as electromagnetic waves can be used. Thus, no battery is required to be incorporated in the slave set 2, the construction is simple and the maintenance is easy.
JP8465481A 1981-06-01 1981-06-01 Remote controller Pending JPS57199391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8465481A JPS57199391A (en) 1981-06-01 1981-06-01 Remote controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8465481A JPS57199391A (en) 1981-06-01 1981-06-01 Remote controller

Publications (1)

Publication Number Publication Date
JPS57199391A true JPS57199391A (en) 1982-12-07

Family

ID=13836697

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8465481A Pending JPS57199391A (en) 1981-06-01 1981-06-01 Remote controller

Country Status (1)

Country Link
JP (1) JPS57199391A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042156A1 (en) * 1997-03-17 1998-09-24 Csanyi Laszlo Circuit arrangement for providing a unit recognizing system combined with energy supply

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042156A1 (en) * 1997-03-17 1998-09-24 Csanyi Laszlo Circuit arrangement for providing a unit recognizing system combined with energy supply

Similar Documents

Publication Publication Date Title
SE7701487L (en) TEMPERATURE MONITORING DEVICE
JPS57199391A (en) Remote controller
JPS5722512A (en) Position detecting device
EP0128874A3 (en) An improvement in sensor devices, particularly but not exclusively underground laid ones, operating on the principle of capacitive state changes and generally useful to warn of heavy masses passing by, and related systems for operating the device
EP0266485A3 (en) Electromechanical horn with excitation of its acoustic diaphragm controlled electronically by sensors which measure its resonance frequency
JPS5384195A (en) Electric line control device that duct type power line is applled
JPS55164321A (en) Temperature detecting unit
EP0598120A4 (en) Noise control apparatus.
JPS53126553A (en) High frequency wave heating device
JPS54120599A (en) Trespasser detecting method
JPS5429598A (en) Object recognition unit
JPS54149669A (en) Circuit device for detecting ultrasonic wave transmitting time
JPS5717236A (en) Detector for synchronism
JPS52128122A (en) Ultrasonic oscillator
JPS56141530A (en) Pressure transducer
JPS5643512A (en) Supervisory device of developer
JPS54141502A (en) Data transmission system
JPS57141127A (en) Underground sensor with automatic phase controlling circuit
JPS5541524A (en) Temperature control unit
JPS56154896A (en) Remote controller with hand operating function
JPS5757019A (en) Surface acoustic wave filter
JPS56124018A (en) Zero-point adjustment method for ultrasonic flow meter
JPS55101021A (en) Earthquake sensor for elevator
KARATZAS Optimal discounted linear control of the Wiener process[Interim Report]
JPS55110444A (en) Failure detection circuit