ZA715289B - Data entry device - Google Patents

Data entry device

Info

Publication number
ZA715289B
ZA715289B ZA715289A ZA715289A ZA715289B ZA 715289 B ZA715289 B ZA 715289B ZA 715289 A ZA715289 A ZA 715289A ZA 715289 A ZA715289 A ZA 715289A ZA 715289 B ZA715289 B ZA 715289B
Authority
ZA
South Africa
Prior art keywords
data entry
entry device
data
entry
Prior art date
Application number
ZA715289A
Other languages
English (en)
Inventor
H Ackerman
C Kessler
Original Assignee
Ncr
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 Ncr filed Critical Ncr
Publication of ZA715289B publication Critical patent/ZA715289B/xx

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
ZA715289A 1970-09-14 1971-08-09 Data entry device ZA715289B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US7197270A 1970-09-14 1970-09-14

Publications (1)

Publication Number Publication Date
ZA715289B true ZA715289B (en) 1972-04-26

Family

ID=22104765

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA715289A ZA715289B (en) 1970-09-14 1971-08-09 Data entry device

Country Status (15)

Country Link
US (1) US3675239A (de)
AT (1) AT313608B (de)
AU (1) AU443750B2 (de)
BE (1) BE772502A (de)
BR (1) BR7105984D0 (de)
CA (1) CA923433A (de)
CH (1) CH535458A (de)
DE (1) DE2145119B2 (de)
ES (1) ES394738A1 (de)
FR (1) FR2112956A5 (de)
GB (1) GB1316215A (de)
NL (1) NL178455C (de)
NO (1) NO131956C (de)
SE (1) SE361222B (de)
ZA (1) ZA715289B (de)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4121284A (en) * 1972-09-11 1978-10-17 Hyatt Gilbert P Computerized system for operator interaction
NL166140C (nl) * 1970-11-14 1981-06-15 Philips Nv Toetsenbord.
USRE31942E (en) * 1971-03-01 1985-07-09 High speed serial scan and readout of keyboards
CA937875A (en) * 1971-05-19 1973-12-04 M. Bernin Victor N-key rollover keyboard
US4517553A (en) * 1971-05-19 1985-05-14 Illinois Tool Works Inc. N-Key rollover keyboard
US3792466A (en) * 1972-05-31 1974-02-12 Mos Technology Inc Keyboard entry system with n-key rollover and n-key lockout protection
US3786497A (en) * 1972-07-31 1974-01-15 Ibm Matrix keyboard method and apparatus
US3921166A (en) * 1972-09-15 1975-11-18 Raytheon Co Capacitance matrix keyboard
US3825926A (en) * 1973-02-05 1974-07-23 Ibm Interfacing circuitry for connecting a remote keyboard with a data receiving buffer
US3886543A (en) * 1973-11-29 1975-05-27 Teletype Corp Debounce logic for keyboard
JPS5086929A (de) * 1973-11-30 1975-07-12
US3995252A (en) * 1973-12-26 1976-11-30 General Electric Company Data processing arrangement for printers
JPS5187917A (de) * 1975-01-31 1976-07-31 Hitachi Ltd
US4042777A (en) * 1975-10-06 1977-08-16 International Business Machines Corporation One-handed keyboard and its control means
US4106011A (en) * 1975-10-24 1978-08-08 Tektronix, Inc. Keyboard circuit
US4024534A (en) * 1975-11-24 1977-05-17 Xerox Corporation Keyboard encoding with repeat key pause
US4164666A (en) * 1976-06-08 1979-08-14 Toyko Shibaura Electric Co., Ltd. Electronic apparatus using complementary MOS transistor dynamic clocked logic circuits
US4211915A (en) * 1978-12-04 1980-07-08 General Electric Company Keyboard verification system
US4684934A (en) * 1983-02-28 1987-08-04 Data General Corporation Method and apparatus for storing and retrieving keyboard LED data
ES2040172B1 (es) * 1991-12-31 1994-05-01 Alcatel Standard Electrica Procedimiento y dispositivo para la lectura de teclados.
US5861583A (en) * 1992-06-08 1999-01-19 Synaptics, Incorporated Object position detector
EP0574213B1 (de) * 1992-06-08 1999-03-24 Synaptics, Inc. Objekt-Positionsdetektor
US6239389B1 (en) 1992-06-08 2001-05-29 Synaptics, Inc. Object position detection system and method
US6028271A (en) * 1992-06-08 2000-02-22 Synaptics, Inc. Object position detector with edge motion feature and gesture recognition
US5880411A (en) 1992-06-08 1999-03-09 Synaptics, Incorporated Object position detector with edge motion feature and gesture recognition
US5889236A (en) * 1992-06-08 1999-03-30 Synaptics Incorporated Pressure sensitive scrollbar feature
US6380929B1 (en) 1996-09-20 2002-04-30 Synaptics, Incorporated Pen drawing computer input device
US5854625A (en) * 1996-11-06 1998-12-29 Synaptics, Incorporated Force sensing touchpad
CN105680875B (zh) * 2016-01-05 2018-07-24 湖南工业大学 矩阵式键盘操作识别及编码电路
CN108649962B (zh) * 2016-01-05 2022-01-21 湖南工业大学 一种独立式键盘扫描编码方法
CN108880560B (zh) * 2016-01-05 2022-03-18 湖南工业大学 一种矩阵式键盘反转法扫描电路

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1060878A (en) * 1965-06-18 1967-03-08 Creed & Co Ltd Code generating keyboards
US3308918A (en) * 1965-09-20 1967-03-14 Ibm Pseudo-interlock employing strobe signal with selected keys
US3568183A (en) * 1968-07-09 1971-03-02 Gen Electric Keyboard synchronized toned generator

Also Published As

Publication number Publication date
ES394738A1 (es) 1974-10-01
GB1316215A (en) 1973-05-09
BE772502A (fr) 1972-01-17
NO131956B (de) 1975-05-20
SE361222B (de) 1973-10-22
DE2145119A1 (de) 1972-03-23
NL7112625A (de) 1972-03-16
FR2112956A5 (de) 1972-06-23
CH535458A (de) 1973-03-31
CA923433A (en) 1973-03-27
NL178455B (nl) 1985-10-16
US3675239A (en) 1972-07-04
NL178455C (nl) 1986-03-17
DE2145119C3 (de) 1973-10-11
AU3232171A (en) 1973-02-15
AT313608B (de) 1974-02-25
NO131956C (de) 1975-08-27
DE2145119B2 (de) 1973-03-22
AU443750B2 (en) 1974-01-03
BR7105984D0 (pt) 1973-04-10

Similar Documents

Publication Publication Date Title
ZA715289B (en) Data entry device
JPS52129248A (en) Data processor
ZA713254B (en) Improvements in data processing devices
CA928854A (en) Memory device
ZA712839B (en) Integralthyristor-rectifier device
HK36877A (en) Variable-display device
ZA712141B (en) Palletzing apparatus
GB1369607A (en) Photographic-colour-film televixing apparatus
HK73978A (en) Textile-testing apparatus
CA943259A (en) Data processing device
YU36231B (en) Data processing device
CA999958B (en) Pyroelectric device
ZA712743B (en) Locating device
HK55476A (en) Display device
IL37652A (en) Fastening device
GB1366915A (en) Ophthalmometer device
ZA713119B (en) Threshold temporising device
GB1344463A (en) Electro-magnetic devices
JPS53114320A (en) Magnetic device
YU35815B (en) Data processing device
IE35581L (en) Conductor-insulator-semiconductor device
GB1364536A (en) Mocroscope apparatus
IL36401A0 (en) Hatch-opening device
CA851361A (en) Data entry apparatus
ZA707573B (en) Marking device