JPS51140514A - Signal processing circuit of no-contact - Google Patents

Signal processing circuit of no-contact

Info

Publication number
JPS51140514A
JPS51140514A JP50064965A JP6496575A JPS51140514A JP S51140514 A JPS51140514 A JP S51140514A JP 50064965 A JP50064965 A JP 50064965A JP 6496575 A JP6496575 A JP 6496575A JP S51140514 A JPS51140514 A JP S51140514A
Authority
JP
Japan
Prior art keywords
signal processing
contact
processing circuit
matrix
make sure
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
JP50064965A
Other languages
Japanese (ja)
Inventor
Atsutaka Morimoto
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.)
Alps Alpine Co Ltd
Original Assignee
Alps 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 Alps Electric Co Ltd filed Critical Alps Electric Co Ltd
Priority to JP50064965A priority Critical patent/JPS51140514A/en
Publication of JPS51140514A publication Critical patent/JPS51140514A/en
Pending legal-status Critical Current

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  • Input From Keyboards Or The Like (AREA)

Abstract

PURPOSE: To make sure signal processing and prevent mis-operation by detecting capacitance variations by means of a comparating circuit which has the variable capacitance switch arranged as a matrix.
COPYRIGHT: (C)1976,JPO&Japio
JP50064965A 1975-05-30 1975-05-30 Signal processing circuit of no-contact Pending JPS51140514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50064965A JPS51140514A (en) 1975-05-30 1975-05-30 Signal processing circuit of no-contact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50064965A JPS51140514A (en) 1975-05-30 1975-05-30 Signal processing circuit of no-contact

Publications (1)

Publication Number Publication Date
JPS51140514A true JPS51140514A (en) 1976-12-03

Family

ID=13273254

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50064965A Pending JPS51140514A (en) 1975-05-30 1975-05-30 Signal processing circuit of no-contact

Country Status (1)

Country Link
JP (1) JPS51140514A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527629A (en) * 1975-07-08 1977-01-20 Nippon Telegr & Teleph Corp <Ntt> Contactless push-button switch
JPS5370720A (en) * 1976-12-07 1978-06-23 Nec Corp Character input device
JPS5553727A (en) * 1978-10-13 1980-04-19 Omron Tateisi Electronics Co Keyboard encorder
JPS5734041U (en) * 1981-06-11 1982-02-23
JP2008184839A (en) * 2007-01-30 2008-08-14 Shin Nikkei Co Ltd Fence and method for erecting the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955262A (en) * 1972-09-29 1974-05-29
JPS4994256A (en) * 1973-01-10 1974-09-06

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4955262A (en) * 1972-09-29 1974-05-29
JPS4994256A (en) * 1973-01-10 1974-09-06

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS527629A (en) * 1975-07-08 1977-01-20 Nippon Telegr & Teleph Corp <Ntt> Contactless push-button switch
JPS5370720A (en) * 1976-12-07 1978-06-23 Nec Corp Character input device
JPS5553727A (en) * 1978-10-13 1980-04-19 Omron Tateisi Electronics Co Keyboard encorder
JPS5636450B2 (en) * 1978-10-13 1981-08-24
JPS5734041U (en) * 1981-06-11 1982-02-23
JP2008184839A (en) * 2007-01-30 2008-08-14 Shin Nikkei Co Ltd Fence and method for erecting the same

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