IT1138321B - Apparato di codifica per tastiera - Google Patents
Apparato di codifica per tastieraInfo
- Publication number
- IT1138321B IT1138321B IT21539/81A IT2153981A IT1138321B IT 1138321 B IT1138321 B IT 1138321B IT 21539/81 A IT21539/81 A IT 21539/81A IT 2153981 A IT2153981 A IT 2153981A IT 1138321 B IT1138321 B IT 1138321B
- Authority
- IT
- Italy
- Prior art keywords
- coding apparatus
- keyboard coding
- keyboard
- coding
- Prior art date
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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Input From Keyboards Or The Like (AREA)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21539/81A IT1138321B (it) | 1981-05-07 | 1981-05-07 | Apparato di codifica per tastiera |
EP82103358A EP0064627B1 (en) | 1981-05-07 | 1982-04-21 | Keyboard coding apparatus |
DE8282103358T DE3261348D1 (en) | 1981-05-07 | 1982-04-21 | Keyboard coding apparatus |
AU82968/82A AU542573B2 (en) | 1981-05-07 | 1982-04-23 | Keyboard |
CA000401538A CA1180821A (en) | 1981-05-07 | 1982-04-23 | Keyboard coding apparatus |
US06/373,769 US4502039A (en) | 1981-05-07 | 1982-04-30 | Keyboard coding apparatus |
KR8201978A KR880000991B1 (ko) | 1981-05-07 | 1982-05-06 | 키보드 코딩장치 |
JP57076457A JPS5816332A (ja) | 1981-05-07 | 1982-05-07 | キ−ボ−ドコ−ド化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT21539/81A IT1138321B (it) | 1981-05-07 | 1981-05-07 | Apparato di codifica per tastiera |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8121539A0 IT8121539A0 (it) | 1981-05-07 |
IT1138321B true IT1138321B (it) | 1986-09-17 |
Family
ID=11183296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT21539/81A IT1138321B (it) | 1981-05-07 | 1981-05-07 | Apparato di codifica per tastiera |
Country Status (8)
Country | Link |
---|---|
US (1) | US4502039A (it) |
EP (1) | EP0064627B1 (it) |
JP (1) | JPS5816332A (it) |
KR (1) | KR880000991B1 (it) |
AU (1) | AU542573B2 (it) |
CA (1) | CA1180821A (it) |
DE (1) | DE3261348D1 (it) |
IT (1) | IT1138321B (it) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4758829A (en) * | 1982-06-04 | 1988-07-19 | Smith Iii William N | Apparatus for stimulating a keyboard |
JPS58219633A (ja) * | 1982-06-14 | 1983-12-21 | Alps Electric Co Ltd | マイコン化エンコ−ダを有するキ−ボ−ド |
JPS5920039A (ja) * | 1982-07-23 | 1984-02-01 | Casio Comput Co Ltd | デ−タ入力確認方式 |
JPS5949633A (ja) * | 1982-09-14 | 1984-03-22 | Toshiba Corp | リピ−ト制御方式 |
JPH07109572B2 (ja) * | 1984-02-29 | 1995-11-22 | 東京プレス工業株式会社 | キャパシティブキ−ボ−ド |
JPS60193678A (ja) * | 1984-03-15 | 1985-10-02 | Canon Inc | 電子機器 |
DE3429309A1 (de) * | 1984-08-09 | 1986-02-20 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Elektronische dateneingabe-tastatur mit galvanische kontakte aufweisenden tasten |
JPS61107417A (ja) * | 1984-10-30 | 1986-05-26 | Toshiba Corp | キ−ボ−ド制御方式 |
US4706068A (en) * | 1985-01-30 | 1987-11-10 | Wyse Technology, Inc. | Four wire keyboard interface |
JPS62160520A (ja) * | 1986-01-08 | 1987-07-16 | Brother Ind Ltd | マトリツクススイツチ装置 |
US4937778A (en) * | 1986-04-14 | 1990-06-26 | Wolf Chris L | System for selectively modifying codes generated by a touch type keyboard upon detecting of predetermined sequence of make codes and break codes |
DE3640432A1 (de) * | 1986-11-27 | 1988-06-09 | Siemens Ag | Mikroprozessorgesteuerte tastatur |
JPS63225288A (ja) * | 1987-03-16 | 1988-09-20 | 沖電気工業株式会社 | 文字表示装置 |
DE4134358A1 (de) * | 1991-10-17 | 1993-04-22 | Standard Elektrik Lorenz Ag | Schaltungseinrichtung zur abfrage einer tastatur |
ES2040172B1 (es) * | 1991-12-31 | 1994-05-01 | Alcatel Standard Electrica | Procedimiento y dispositivo para la lectura de teclados. |
US5818426A (en) * | 1996-02-01 | 1998-10-06 | Aztech New Media Corporation | Peripheral-computer interfacing system and method |
FR2790886B1 (fr) * | 1999-03-12 | 2001-06-08 | Sextant Avionique | Procede et dispositif d'adressage sequentiel des entrees d'un multiplexeur de circuit d'acquisition de donnees |
US6715086B1 (en) | 1999-06-30 | 2004-03-30 | International Business Machines Corporation | Data processing system and method having time-span support for input device driver |
AUPQ673400A0 (en) * | 2000-04-06 | 2000-05-04 | Mcom Solutions Inc | Keypad |
TW504637B (en) * | 2001-05-29 | 2002-10-01 | Via Tech Inc | Keyboard instruction reading device for notebook computer |
US7446676B2 (en) * | 2005-12-28 | 2008-11-04 | Broadcom Corporation | Self-scan programmable keypad interface |
JP4916959B2 (ja) * | 2007-06-19 | 2012-04-18 | 富士通株式会社 | キー制御回路、電子機器、携帯装置及びキー制御方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3750113A (en) * | 1971-11-12 | 1973-07-31 | Becton Dickinson Co | Capacitive keyboard |
GB1496522A (en) * | 1974-01-22 | 1977-12-30 | Endfield C | Keyboard |
DE2420119B2 (de) * | 1974-04-25 | 1977-09-08 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zum erfassen von meldungen mit mehreren meldungsgebern |
JPS5187917A (it) * | 1975-01-31 | 1976-07-31 | Hitachi Ltd | |
SE405515B (sv) * | 1975-09-25 | 1978-12-11 | Siemens Ag | Anordning for inmatning och kodning av datatecken |
US4145687A (en) * | 1975-09-30 | 1979-03-20 | Denki Onkyo Co., Ltd. | Keyboard switch circuit for use in a matrix which has a series circuit including a reluctance element and a diode connected between each row and column of the matrix |
US4106011A (en) * | 1975-10-24 | 1978-08-08 | Tektronix, Inc. | Keyboard circuit |
US4194188A (en) * | 1977-09-26 | 1980-03-18 | Redactron Corporation | Interrogation of key switches using pulse width detection |
JPS5477534A (en) * | 1977-12-02 | 1979-06-21 | Matsushita Electric Ind Co Ltd | Digital input circuit |
US4222038A (en) * | 1978-02-24 | 1980-09-09 | Motorola, Inc. | Microcomputer keyboard input circuitry |
US4305135A (en) * | 1979-07-30 | 1981-12-08 | International Business Machines Corp. | Program controlled capacitive keyboard variable threshold sensing system |
US4408191A (en) * | 1979-12-12 | 1983-10-04 | Sperry Corporation | Key cycle timer control providing a universal keyboard |
-
1981
- 1981-05-07 IT IT21539/81A patent/IT1138321B/it active
-
1982
- 1982-04-21 EP EP82103358A patent/EP0064627B1/en not_active Expired
- 1982-04-21 DE DE8282103358T patent/DE3261348D1/de not_active Expired
- 1982-04-23 AU AU82968/82A patent/AU542573B2/en not_active Ceased
- 1982-04-23 CA CA000401538A patent/CA1180821A/en not_active Expired
- 1982-04-30 US US06/373,769 patent/US4502039A/en not_active Expired - Fee Related
- 1982-05-06 KR KR8201978A patent/KR880000991B1/ko active
- 1982-05-07 JP JP57076457A patent/JPS5816332A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5816332A (ja) | 1983-01-31 |
EP0064627B1 (en) | 1984-11-28 |
KR830010420A (ko) | 1983-12-30 |
US4502039A (en) | 1985-02-26 |
DE3261348D1 (en) | 1985-01-10 |
CA1180821A (en) | 1985-01-08 |
KR880000991B1 (ko) | 1988-06-10 |
AU8296882A (en) | 1982-11-11 |
AU542573B2 (en) | 1985-02-28 |
IT8121539A0 (it) | 1981-05-07 |
EP0064627A1 (en) | 1982-11-17 |
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