IL44192A - Electronic keyboard - Google Patents

Electronic keyboard

Info

Publication number: IL44192A
Authority: IL; Israel
Prior art keywords: keyboard; signal; output; keyboard according; electronic
Prior art date: 1973-03-09

Application number

IL44192A

Other languages

English (en)

Other versions

IL44192A0 (en

Original Assignee

Magic Dot Inc

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.)

1973-03-09

Filing date

1974-02-12

Publication date

1977-03-31

1974-02-12 Application filed by Magic Dot Inc filed Critical Magic Dot Inc

1974-05-16 Publication of IL44192A0 publication Critical patent/IL44192A0/xx

1977-03-31 Publication of IL44192A publication Critical patent/IL44192A/en

Links

239000003990 capacitor Substances 0.000 claims description 14
239000012212 insulator Substances 0.000 claims description 13
230000008878 coupling Effects 0.000 claims description 11
238000010168 coupling process Methods 0.000 claims description 11
238000005859 coupling reaction Methods 0.000 claims description 11
238000013479 data entry Methods 0.000 claims description 11
239000007787 solid Substances 0.000 claims description 7
230000003534 oscillatory effect Effects 0.000 claims description 5
230000010355 oscillation Effects 0.000 description 14
239000000758 substrate Substances 0.000 description 9
238000000034 method Methods 0.000 description 7
239000004020 conductor Substances 0.000 description 6
238000010586 diagram Methods 0.000 description 5
239000011521 glass Substances 0.000 description 4
238000002955 isolation Methods 0.000 description 4
239000000463 material Substances 0.000 description 4
239000002184 metal Substances 0.000 description 4
238000004377 microelectronic Methods 0.000 description 4
239000000919 ceramic Substances 0.000 description 3
230000008859 change Effects 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
230000000007 visual effect Effects 0.000 description 3
230000005540 biological transmission Effects 0.000 description 2
238000000151 deposition Methods 0.000 description 2
230000008021 deposition Effects 0.000 description 2
238000013461 design Methods 0.000 description 2
230000005611 electricity Effects 0.000 description 2
230000004048 modification Effects 0.000 description 2
238000012986 modification Methods 0.000 description 2
101100021570 Caenorhabditis elegans lon-3 gene Proteins 0.000 description 1
241001290864 Schoenoplectus Species 0.000 description 1
239000000654 additive Substances 0.000 description 1
230000000996 additive effect Effects 0.000 description 1
238000013459 approach Methods 0.000 description 1
230000000694 effects Effects 0.000 description 1
230000005669 field effect Effects 0.000 description 1
229910052738 indium Inorganic materials 0.000 description 1
230000003993 interaction Effects 0.000 description 1
238000005381 potential energy Methods 0.000 description 1
230000003252 repetitive effect Effects 0.000 description 1
238000012163 sequencing technique Methods 0.000 description 1
230000008054 signal transmission Effects 0.000 description 1
230000003068 static effect Effects 0.000 description 1
239000010409 thin film Substances 0.000 description 1

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
- H03K17/962—Capacitive touch switches
- H03K17/9622—Capacitive touch switches using a plurality of detectors, e.g. keyboard
- 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
- H03K2017/9602—Touch switches characterised by the type or shape of the sensing electrodes
- H03K2017/9604—Touch switches characterised by the type or shape of the sensing electrodes characterised by the number of electrodes
- H03K2017/9613—Touch switches characterised by the type or shape of the sensing electrodes characterised by the number of electrodes using two electrodes per touch switch

Landscapes

Input From Keyboards Or The Like (AREA)
Electronic Switches (AREA)

IL44192A 1973-03-09 1974-02-12 Electronic keyboard IL44192A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US339524A US3877029A (en)	1973-03-09	1973-03-09	Electronic keyboard

Publications (2)

Publication Number	Publication Date
IL44192A0 IL44192A0 (en)	1974-05-16
IL44192A true IL44192A (en)	1977-03-31

Family

ID=23329411

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IL44192A IL44192A (en)	1973-03-09	1974-02-12	Electronic keyboard

Country Status (10)

Country	Link
US (1)	US3877029A (it)
JP (1)	JPS49127527A (it)
CA (1)	CA1001955A (it)
CH (1)	CH591115A5 (it)
DE (1)	DE2409615A1 (it)
FR (1)	FR2220832B1 (it)
GB (1)	GB1457572A (it)
IL (1)	IL44192A (it)
IT (1)	IT1009249B (it)
ZA (1)	ZA74784B (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4037200A (en) *	1974-10-16	1977-07-19	Cranmer Terrence V	Braille display switching matrix and circuit utilizing the same
US4055755A (en) *	1975-04-16	1977-10-25	Sharp Kabushiki Kaisha	Switching assembly in combination wristwatch and calculator
JPS5257856A (en) *	1975-11-07	1977-05-12	Seiko Epson Corp	Electronic wristwatch
DE2607948C3 (de) *	1976-02-27	1979-07-19	Kober Ag, Glarus (Schweiz)	Verfahren zur Herstellung eines Fugenrandkörpers für Dehnungsfugen in Verkehrswegen und Mehrfachprofil zur Durchführung des Verfahrens
US4139837A (en) *	1977-06-22	1979-02-13	Creative Ventures, Inc.	Information entry system
JPS579093A (en) *	1980-06-17	1982-01-18	Matsushita Electric Industrial Co Ltd	Induction heating cooking device
EP0072784A3 (en) *	1981-08-19	1983-10-19	General Instrument Corporation	Circuit board for use in capacitive keyboard
GB2232251A (en) *	1989-05-08	1990-12-05	Philips Electronic Associated	Touch sensor array systems
US5241695A (en) *	1991-11-26	1993-08-31	Motorola, Inc.	Molded shield with integral key switch circuitry
GB9211035D0 (en) *	1992-05-22	1992-07-08	Fletcher Robert P	A touch sensitive switching array
FR2699349B1 (fr) *	1992-12-14	1995-02-24	Jaeger Regulation	Clavier pour environnement sévère et appareil de cuisson comportant un tel clavier.
DE69419735T2 (de) *	1994-06-09	2000-03-16	Whirlpool Europe B.V.	Radiofrequente Fingertasten Steuervorrichtung für Öfen, Kochmulden, Kocher, Waschmaschinen, Geschirrspüler, od.dgl.

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3112476A (en) *	1960-01-07	1963-11-26	Sylvania Electric Prod	Electronic switches
US3177481A (en) *	1961-08-10	1965-04-06	More	Electronic alertness control
US3492440A (en) *	1967-05-25	1970-01-27	Bell Telephone Labor Inc	Direct station selection telephone set employing proximity type selector switches
US3530312A (en) *	1969-02-14	1970-09-22	Hall Barkan Instr Inc	Touch responsive momentary switch circuit
JPS492779B1 (it) *	1969-05-02	1974-01-22
US3549909A (en) *	1969-08-25	1970-12-22	Hall Barkan Instr Inc	Touch activated ac,full wave,two-wire swtiches
US3760121A (en) *	1970-12-28	1973-09-18	Electronic Arrays	Telephone dialer with arithmetic calculation capability and visual display of digits
US3766404A (en) *	1971-11-16	1973-10-16	Magic Dot Inc	Composite d.c. amplifier for use with a touch sensitive electronic switch

1973
- 1973-03-09 US US339524A patent/US3877029A/en not_active Expired - Lifetime
1974
- 1974-02-05 GB GB528974A patent/GB1457572A/en not_active Expired
- 1974-02-06 ZA ZA740784A patent/ZA74784B/xx unknown
- 1974-02-12 IL IL44192A patent/IL44192A/en unknown
- 1974-02-21 CH CH247074A patent/CH591115A5/xx not_active IP Right Cessation
- 1974-02-28 DE DE2409615A patent/DE2409615A1/de not_active Withdrawn
- 1974-03-06 FR FR7407686A patent/FR2220832B1/fr not_active Expired
- 1974-03-07 JP JP49026722A patent/JPS49127527A/ja active Pending
- 1974-03-08 IT IT67661/74A patent/IT1009249B/it active
- 1974-03-08 CA CA194,414A patent/CA1001955A/en not_active Expired

Also Published As

Publication number	Publication date
AU6609974A (en)	1975-08-28
IL44192A0 (en)	1974-05-16
ZA74784B (en)	1974-12-24
GB1457572A (en)	1976-12-08
FR2220832A1 (it)	1974-10-04
CH591115A5 (it)	1977-09-15
CA1001955A (en)	1976-12-21
JPS49127527A (it)	1974-12-06
IT1009249B (it)	1976-12-10
US3877029A (en)	1975-04-08
DE2409615A1 (de)	1974-09-12
FR2220832B1 (it)	1979-03-16

Publication	Publication Date	Title
IL44192A (en)	1977-03-31	Electronic keyboard
JP2953841B2 (ja)	1999-09-27	スイッチ装置
US4326135A (en)	1982-04-20	Differential to single-ended converter utilizing inverted transistors
US20030122432A1 (en)	2003-07-03	Touch switch with integral control circuit
US3787732A (en)	1974-01-22	Electronic switch apparatus sensitive to and actuated by touch
US3766404A (en)	1973-10-16	Composite d.c. amplifier for use with a touch sensitive electronic switch
US5034740A (en)	1991-07-23	Capacitive card module
GB1564565A (en)	1980-04-10	Switching circuits
US4256984A (en)	1981-03-17	Interlevel interface for series powered IIL or SITL
US4511809A (en)	1985-04-16	Switch circuit having improved switching characteristics
US3873978A (en)	1975-03-25	Keyboard circuit
US3914622A (en)	1975-10-21	Latch circuit with noise suppression
GB1572059A (en)	1980-07-23	Integrated circuit including transistor/current injector combinations
JPS60254529A (ja)	1985-12-16	接触感応キーボード入力デバイス及び方法
JP3021587B2 (ja)	2000-03-15	キースイッチ操作情報取込み方法及びマトリクスキースイッチ装置
JPH0220738Y2 (it)	1990-06-06
JPH0667789A (ja)	1994-03-11	座標入力装置
GB2052906A (en)	1981-01-28	Flip-flop circuits
JPH03109808A (ja)	1991-05-09	大きな電流比を有する電流ミラー回路
JPS6117375B2 (it)	1986-05-07
US3771030A (en)	1973-11-06	Large scale integrated circuit of reduced area including counter
JPS6342747Y2 (it)	1988-11-09
SU760094A1 (ru)	1980-08-30	Полный двоичный сумматор 1
KR910007378Y1 (ko)	1991-09-25	이중 동기 신호 모니터의 입력전원(b^+)절환회로
JPH04493Y2 (it)	1992-01-09