JPS5656037A - Waveform shaping device for piezoelectric electronic switch - Google Patents

Waveform shaping device for piezoelectric electronic switch

Info

Publication number
JPS5656037A
JPS5656037A JP13147179A JP13147179A JPS5656037A JP S5656037 A JPS5656037 A JP S5656037A JP 13147179 A JP13147179 A JP 13147179A JP 13147179 A JP13147179 A JP 13147179A JP S5656037 A JPS5656037 A JP S5656037A
Authority
JP
Japan
Prior art keywords
depression
piezoelectric
circuit
electronic switch
output
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
JP13147179A
Other languages
Japanese (ja)
Inventor
Yasuo Matsumura
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 Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13147179A priority Critical patent/JPS5656037A/en
Publication of JPS5656037A publication Critical patent/JPS5656037A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/964—Piezoelectric touch switches

Landscapes

  • Pulse Circuits (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To output a signal while a piezoelectric electronic switch is depressed, by using voltage pulses, differing in polarity, generated at the depression start and depression end of the piezoelectric electronic switch as depression-start and depression-end signals. CONSTITUTION:With piezoelectric body 1 depressed through key operation A, detection electrode 2 generates piezoelectric pulse B1 at the start of the depression. Pulse B1 is amplified 3 and converted into a required voltage level, which is applied as a depression-start signal to latch circuit 4 of the signal generating circuit, where it is set to start the generation of output C. On the other hand, voltage pulse B2 of the opposite polarity generated by electrode 2 at the end of the depression is amplified 5 and converted into a required voltage level, which is supplied as a depression-end signal to circuit 4, which is reset to stop the generation of output C. Thus, the waveform shaping device can be obtained which continues to generate output C without fail while piezoelectric body 1 is being depressed. Using depletion and enhancement MOSFETs for the waveform shaping circuit makes it possible to operate the circuit with a single electric power source.
JP13147179A 1979-10-11 1979-10-11 Waveform shaping device for piezoelectric electronic switch Pending JPS5656037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13147179A JPS5656037A (en) 1979-10-11 1979-10-11 Waveform shaping device for piezoelectric electronic switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13147179A JPS5656037A (en) 1979-10-11 1979-10-11 Waveform shaping device for piezoelectric electronic switch

Publications (1)

Publication Number Publication Date
JPS5656037A true JPS5656037A (en) 1981-05-16

Family

ID=15058735

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13147179A Pending JPS5656037A (en) 1979-10-11 1979-10-11 Waveform shaping device for piezoelectric electronic switch

Country Status (1)

Country Link
JP (1) JPS5656037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001022587A1 (en) * 1999-09-23 2001-03-29 Baran Advanced Technologies (86) Ltd. A continuous switch employing a pressure-sensitive element
JP2008295660A (en) * 2007-05-30 2008-12-11 Takeya Co Ltd Game machine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4828586A (en) * 1971-08-18 1973-04-16
JPS5066775A (en) * 1973-10-18 1975-06-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4828586A (en) * 1971-08-18 1973-04-16
JPS5066775A (en) * 1973-10-18 1975-06-05

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001022587A1 (en) * 1999-09-23 2001-03-29 Baran Advanced Technologies (86) Ltd. A continuous switch employing a pressure-sensitive element
JP2008295660A (en) * 2007-05-30 2008-12-11 Takeya Co Ltd Game machine

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