IT8023298A0 - Tastiera elettronica perfezionata. - Google Patents

Tastiera elettronica perfezionata.

Info

Publication number: IT8023298A0
Authority: IT; Italy
Prior art keywords: electronic keyboard; improved electronic; improved; keyboard; electronic
Prior art date: 1979-07-30

Application number

IT8023298A

Other languages

English (en)

Other versions

IT1150962B (it

Inventor

Dahl Jerome Paul

Epley Phillip Russell

Fox Jon Edward

Original Assignee

Ibm

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.)

1979-07-30

Filing date

1980-07-08

Publication date

1980-07-08

1980-07-08 Application filed by Ibm filed Critical Ibm

1980-07-08 Publication of IT8023298A0 publication Critical patent/IT8023298A0/it

1986-12-17 Application granted granted Critical

1986-12-17 Publication of IT1150962B publication Critical patent/IT1150962B/it

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
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
- H03K17/98—Switches controlled by moving an element forming part of the switch using a capacitive movable element having a plurality of control members, e.g. keyboard
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
- H03M11/20—Dynamic coding, i.e. by key scanning
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/9401—Calibration techniques
- H03K2217/94026—Automatic threshold calibration; e.g. threshold automatically adapts to ambient conditions or follows variation of input

Landscapes

Engineering & Computer Science (AREA)
Theoretical Computer Science (AREA)
Input From Keyboards Or The Like (AREA)
Electronic Switches (AREA)

IT23298/80A 1979-07-30 1980-07-08 Tastiera elettronica perfezionata IT1150962B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/061,719 US4305135A (en)	1979-07-30	1979-07-30	Program controlled capacitive keyboard variable threshold sensing system

Publications (2)

Publication Number	Publication Date
IT8023298A0 true IT8023298A0 (it)	1980-07-08
IT1150962B IT1150962B (it)	1986-12-17

Family

ID=22037670

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT23298/80A IT1150962B (it)	1979-07-30	1980-07-08	Tastiera elettronica perfezionata

Country Status (9)

Country	Link
US (1)	US4305135A (it)
EP (1)	EP0023271B1 (it)
JP (1)	JPS604490B2 (it)
AU (1)	AU537190B2 (it)
BR (1)	BR8004720A (it)
CA (1)	CA1147868A (it)
DE (1)	DE3063307D1 (it)
ES (1)	ES8104592A1 (it)
IT (1)	IT1150962B (it)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
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DE3273873D1 (en) *	1981-04-03	1986-11-20	Commissariat Energie Atomique	Capacitive keyboard with anti-parasite structure
US4405917A (en) *	1981-04-28	1983-09-20	Honeywell Inc.	Matrix screening and grounding arrangement and method
IT1138321B (it) *	1981-05-07	1986-09-17	Honeywell Inf Systems	Apparato di codifica per tastiera
EP0085623A3 (en) *	1982-02-01	1986-07-30	Schlumberger Canada Limited	Register position sensing and controlling apparatus
US4488152A (en) *	1982-02-01	1984-12-11	Schlumberger Canada Limited	Register position sensing and controlling apparatus
JPS603646B2 (ja) *	1982-04-30	1985-01-30	富士通株式会社	座標検出装置
US4529967A (en) *	1982-07-15	1985-07-16	Gifft Thomas H	Non contacting inductive keyboard
US4595913A (en) *	1983-02-10	1986-06-17	Pie Associates	Capacitor touch activated switching system
US4733222A (en) *	1983-12-27	1988-03-22	Integrated Touch Arrays, Inc.	Capacitance-variation-sensitive touch sensing array system
ATE45254T1 (de) *	1983-12-27	1989-08-15	Integrated Touch Arrays Inc	System mit einer beruehrungsempfindlichen, auf kapazitaetsaenderungen ansprechenden anordnung.
FR2566209B1 (fr) *	1984-02-16	1990-01-05	Louis Frederic	Procede pour scruter un clavier a touches capacitives, et clavier assorti de moyens pour scruter ce clavier selon ce procede
FR2577365B2 (fr) *	1985-02-11	1994-08-26	Antikidis Jean Pierre	Procede pour scruter un clavier a touches capacitives et un clavier ass
EP0203923B1 (fr) *	1984-02-16	1991-09-11	ANTIKIDIS, Jean-Pierre	Procede pour scruter un clavier a touches capacitives et un clavier assorti de moyens pour scruter un clavier selon ce procede
JPS61107417A (ja) *	1984-10-30	1986-05-26	Toshiba Corp	キ−ボ−ド制御方式
US4651133A (en) *	1984-12-24	1987-03-17	At&T Technologies, Inc.	Method and apparatus for capacitive keyboard scanning
US4710758A (en) *	1985-04-26	1987-12-01	Westinghouse Electric Corp.	Automatic touch screen calibration method
JPS62144220A (ja) *	1985-12-18	1987-06-27	Matsushita Electric Ind Co Ltd	静電容量式キ−ボ−ドスイツチ
DE3608148A1 (de) *	1986-03-12	1987-09-24	Schwab Technologieberatung	Anordnung zum ueberwachen und anzeigen von schachpartien
US4728931A (en) *	1986-07-25	1988-03-01	Honeywell Inc.	Charge redistribution capacitance detection apparatus
US4728932A (en) *	1986-07-25	1988-03-01	Honeywell Inc.	Detector for capacitive sensing devices
JP2733300B2 (ja) *	1989-04-28	1998-03-30	松下電器産業株式会社	キー入力装置
US5036321A (en) *	1989-08-31	1991-07-30	Otis Elevator Company	Capacitive sensing, solid state touch button system
US5252971A (en) *	1989-09-26	1993-10-12	Home Row, Inc.	Data acquisition in a multi-function keyboard system which corrects for preloading of force sensors
US5450080A (en) *	1992-04-22	1995-09-12	Samsung Semiconductor, Inc.	Keyboard encoding
US5283559A (en) *	1992-09-21	1994-02-01	International Business Machines Corp.	Automatic calibration of a capacitive touch screen used with a fixed element flat screen display panel
WO1995016308A1 (en) *	1993-12-08	1995-06-15	Fafalios Stamos Anastasios Dim	Electronic touch switch and keyboard comprising such a switch
FR2716585B1 (fr) *	1994-02-18	1996-03-22	Cepem	Dispositif de commande à touche sensitive et clavier de commande à touches sensitives.
US5508700A (en) *	1994-03-17	1996-04-16	Tanisys Technology, Inc.	Capacitance sensitive switch and switch array
US5650597A (en) *	1995-01-20	1997-07-22	Dynapro Systems, Inc.	Capacitive touch sensor
DE19546323C2 (de) *	1995-12-12	2001-04-19	Diehl Stiftung & Co	Mikrocontrollerschaltung für ein Haushaltsgerät
DE19956630A1 (de) *	1999-11-25	2001-05-31	Merten Gmbh & Co Kg	Kapazitiver Tastschalter
US7256714B2 (en) *	2003-07-11	2007-08-14	Harald Philipp	Keyboard with reduced keying ambiguity
US7821425B2 (en) *	2002-07-12	2010-10-26	Atmel Corporation	Capacitive keyboard with non-locking reduced keying ambiguity
US7239537B2 (en) *	2005-01-12	2007-07-03	International Business Machines Corporation	Method and apparatus for current sense amplifier calibration in MRAM devices
US7504833B1 (en)	2005-04-01	2009-03-17	Cypress Semiconductor Corporation	Automatically balanced sensing device and method for multiple capacitive sensors
US8144125B2 (en)	2006-03-30	2012-03-27	Cypress Semiconductor Corporation	Apparatus and method for reducing average scan rate to detect a conductive object on a sensing device
US8040142B1 (en)	2006-03-31	2011-10-18	Cypress Semiconductor Corporation	Touch detection techniques for capacitive touch sense systems
US8004497B2 (en)	2006-05-18	2011-08-23	Cypress Semiconductor Corporation	Two-pin buttons
US8059015B2 (en)	2006-05-25	2011-11-15	Cypress Semiconductor Corporation	Capacitance sensing matrix for keyboard architecture
US8040321B2 (en) *	2006-07-10	2011-10-18	Cypress Semiconductor Corporation	Touch-sensor with shared capacitive sensors
US9766738B1 (en) *	2006-08-23	2017-09-19	Cypress Semiconductor Corporation	Position and usage based prioritization for capacitance sense interface
US8547114B2 (en)	2006-11-14	2013-10-01	Cypress Semiconductor Corporation	Capacitance to code converter with sigma-delta modulator
US8058937B2 (en) *	2007-01-30	2011-11-15	Cypress Semiconductor Corporation	Setting a discharge rate and a charge rate of a relaxation oscillator circuit
US8144126B2 (en)	2007-05-07	2012-03-27	Cypress Semiconductor Corporation	Reducing sleep current in a capacitance sensing system
US9500686B1 (en)	2007-06-29	2016-11-22	Cypress Semiconductor Corporation	Capacitance measurement system and methods
US8570053B1 (en)	2007-07-03	2013-10-29	Cypress Semiconductor Corporation	Capacitive field sensor with sigma-delta modulator
US8169238B1 (en)	2007-07-03	2012-05-01	Cypress Semiconductor Corporation	Capacitance to frequency converter
US8258986B2 (en)	2007-07-03	2012-09-04	Cypress Semiconductor Corporation	Capacitive-matrix keyboard with multiple touch detection
KR20090050730A (ko) *	2007-11-16	2009-05-20	삼성전자주식회사	표시장치 및 그 제어방법
US8525798B2 (en)	2008-01-28	2013-09-03	Cypress Semiconductor Corporation	Touch sensing
US8319505B1 (en)	2008-10-24	2012-11-27	Cypress Semiconductor Corporation	Methods and circuits for measuring mutual and self capacitance
US8358142B2 (en)	2008-02-27	2013-01-22	Cypress Semiconductor Corporation	Methods and circuits for measuring mutual and self capacitance
US8321174B1 (en)	2008-09-26	2012-11-27	Cypress Semiconductor Corporation	System and method to measure capacitance of capacitive sensor array
US8941393B2 (en) *	2011-01-14	2015-01-27	Cypress Semiconductor Corporation	Detection of a conductive object during an initialization process of a touch-sensing device
DE102012211935A1 (de) *	2012-07-09	2014-01-09	Preh Gmbh	Berührungsempfindliche Bedieneinheit mit rotierender Berührschicht
US9971463B2 (en) *	2015-09-29	2018-05-15	Synaptics Incorporated	Row-based sensing on matrix pad sensors
WO2019109750A1 (zh) *	2017-12-08	2019-06-13	南昌黑鲨科技有限公司	一种操作识别装置、操作识别方法及具有该装置的智能终端

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3437795A (en) *	1965-06-28	1969-04-08	Ampex	Data input devices and systems
US3745536A (en) *	1971-03-01	1973-07-10	Burroughs Corp	High speed serial scan and read-out of keyboards
US3720938A (en) *	1971-04-19	1973-03-13	Lematex Inc	System for preventing erroneous data output signals from an electrical keyboard
US3786497A (en) *	1972-07-31	1974-01-15	Ibm	Matrix keyboard method and apparatus
US3931610A (en) *	1973-11-29	1976-01-06	Teletype Corporation	Capacitive keyswitch sensor and method
GB1497210A (en)	1975-05-13	1978-01-05	Ncr Co	Matrix memory
FR2332655A1 (fr)	1975-11-24	1977-06-17	Xerox Corp	Clavier de codage anti-rebonds muni de touches de repetition
US4157539A (en) *	1976-10-14	1979-06-05	The Singer Company	Charge rate, capacitive switch system
DE2831783A1 (de)	1978-07-19	1980-02-07	Singer Co	Kapazitive schalteranordnung
US4186392A (en) *	1978-07-28	1980-01-29	Burroughs Corporation	Touch panel and operating system

1979
- 1979-07-30 US US06/061,719 patent/US4305135A/en not_active Expired - Lifetime
1980
- 1980-05-27 CA CA000352829A patent/CA1147868A/en not_active Expired
- 1980-06-18 JP JP55081514A patent/JPS604490B2/ja not_active Expired
- 1980-06-20 AU AU59481/80A patent/AU537190B2/en not_active Ceased
- 1980-06-24 EP EP80103548A patent/EP0023271B1/fr not_active Expired
- 1980-06-24 DE DE8080103548T patent/DE3063307D1/de not_active Expired
- 1980-07-08 IT IT23298/80A patent/IT1150962B/it active
- 1980-07-28 BR BR8004720A patent/BR8004720A/pt unknown
- 1980-07-29 ES ES493794A patent/ES8104592A1/es not_active Expired

Also Published As

Publication number	Publication date
EP0023271A1 (fr)	1981-02-04
ES493794A0 (es)	1981-04-01
AU5948180A (en)	1981-02-05
BR8004720A (pt)	1981-02-10
IT1150962B (it)	1986-12-17
JPS5621226A (en)	1981-02-27
EP0023271B1 (fr)	1983-05-18
AU537190B2 (en)	1984-06-14
ES8104592A1 (es)	1981-04-01
US4305135A (en)	1981-12-08
JPS604490B2 (ja)	1985-02-04
CA1147868A (en)	1983-06-07
DE3063307D1 (en)	1983-07-07

Publication	Publication Date	Title
IT8023298A0 (it)	1980-07-08	Tastiera elettronica perfezionata.
IT7830418A0 (it)	1978-12-01	Tastiera perfezionata.
IT7827716A0 (it)	1978-09-15	Spoletta elettronica.
NL7710289A (nl)	1978-04-03	Toetsenbord.
NL175112C (nl)	1984-09-17	Waardebiljetgever.
IT8024100A0 (it)	1980-08-08	Cannone elettronico.
DE3381536D1 (de)	1990-06-13	Tastatur.
IT8021118A0 (it)	1980-04-01	Interruttore elettronico.
NL179012C (nl)	1986-06-16	Toetsenbord.
NL7901053A (nl)	1979-08-15	Elektronisch uurwerk.
NL7804038A (nl)	1979-10-19	Elektronenmikroskoop.
NO764311L (no)	1978-06-21	Tastbord.
FI811278A7 (fi)	1981-11-10	Näppäimistö.
NO793494L (no)	1981-05-04	Sylinderlaas i.
IT8120845A0 (it)	1981-03-31	Tastiera.
NL7800869A (nl)	1979-07-27	Elektronenmikroskoop.
BR8004426A (pt)	1981-01-27	Conjunto de teclado
IT8026976A0 (it)	1980-12-24	Giuoco elettronico.
NL7812131A (nl)	1979-06-19	Vlakke sleutel.
ES242734Y (es)	1980-02-01	Cuaderno.
NL7706956A (nl)	1978-03-23	Elektronisch maximaalmechanisme.
NL7804035A (nl)	1979-10-19	Elektronenmikroskoop.
NO812109L (no)	1981-06-19	Z-profilfoeringsinnretning.
IT7982814A0 (it)	1979-06-26	Custode personale elettronico.
ES241966Y (es)	1980-02-16	Cuaderno caligrafico-bilingue.