JPS56168488A - Signal processor - Google Patents

Signal processor

Info

Publication number
JPS56168488A
JPS56168488A JP7244180A JP7244180A JPS56168488A JP S56168488 A JPS56168488 A JP S56168488A JP 7244180 A JP7244180 A JP 7244180A JP 7244180 A JP7244180 A JP 7244180A JP S56168488 A JPS56168488 A JP S56168488A
Authority
JP
Japan
Prior art keywords
gate
output
circuit
input
signals
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
JP7244180A
Other languages
Japanese (ja)
Inventor
Yuji Hara
Susumu Kahara
Tatsuo Ogawa
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 JP7244180A priority Critical patent/JPS56168488A/en
Publication of JPS56168488A publication Critical patent/JPS56168488A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/12—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac
    • G08C19/14—Electric signal transmission systems in which the signal transmitted is frequency or phase of ac using combination of fixed frequencies

Landscapes

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

Abstract

PURPOSE:To prevent the malfunction due to a noise, by alternately generating two signals having mutually different frequencies, setting and resetting an FF only when receiving said two signals and then detecting a change of the stable of these two sing nals. CONSTITUTION:The different frequencies generated from resonance circuits 10 and 11 are applied to intergral networks 19 and 23 via diodes 18 and 22. The output of the circuit 19 is spplied to an input of an NAND gate 45, and the output of the circuit 23 is applied to the other input via an NOT gate 46. The output of the gate 45 is reversed by an NOT gate 47 to be applied to an FF28 as a set signal. The output of the circuit 23 is applied to an input of an NAND gate 48, and the output of the circuit 19 is applied to the other input via an NOT gate 49. The output of the gate 48 is applied to an FF28 via an NOT gate 50 as reset signal. Then a change of the stable state of the FF28 is detected by the cooperation of differential capacitors 32 and 35, diodes 33 and 36, an integrating capacitor 34 and a transistor 37 respectively. Then a load 38 is controlled.
JP7244180A 1980-05-29 1980-05-29 Signal processor Pending JPS56168488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7244180A JPS56168488A (en) 1980-05-29 1980-05-29 Signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7244180A JPS56168488A (en) 1980-05-29 1980-05-29 Signal processor

Publications (1)

Publication Number Publication Date
JPS56168488A true JPS56168488A (en) 1981-12-24

Family

ID=13489372

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7244180A Pending JPS56168488A (en) 1980-05-29 1980-05-29 Signal processor

Country Status (1)

Country Link
JP (1) JPS56168488A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066948A (en) * 1986-10-01 1991-11-19 Canon Kabushiki Kaisha Receiver for use in remote control system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298881A (en) * 1976-02-13 1977-08-19 Matsushita Electric Ind Co Ltd Remote control device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5298881A (en) * 1976-02-13 1977-08-19 Matsushita Electric Ind Co Ltd Remote control device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5066948A (en) * 1986-10-01 1991-11-19 Canon Kabushiki Kaisha Receiver for use in remote control system

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