NO131956C - - Google Patents
Info
- Publication number
- NO131956C NO131956C NO3317/71A NO331771A NO131956C NO 131956 C NO131956 C NO 131956C NO 3317/71 A NO3317/71 A NO 3317/71A NO 331771 A NO331771 A NO 331771A NO 131956 C NO131956 C NO 131956C
- Authority
- NO
- Norway
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7197270A | 1970-09-14 | 1970-09-14 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO131956B NO131956B (no) | 1975-05-20 |
| NO131956C true NO131956C (no) | 1975-08-27 |
Family
ID=22104765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO3317/71A NO131956C (no) | 1970-09-14 | 1971-09-06 |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US3675239A (no) |
| AT (1) | AT313608B (no) |
| AU (1) | AU443750B2 (no) |
| BE (1) | BE772502A (no) |
| BR (1) | BR7105984D0 (no) |
| CA (1) | CA923433A (no) |
| CH (1) | CH535458A (no) |
| DE (1) | DE2145119B2 (no) |
| ES (1) | ES394738A1 (no) |
| FR (1) | FR2112956A5 (no) |
| GB (1) | GB1316215A (no) |
| NL (1) | NL178455C (no) |
| NO (1) | NO131956C (no) |
| SE (1) | SE361222B (no) |
| ZA (1) | ZA715289B (no) |
Families Citing this family (31)
| 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 (no) * | 1973-11-30 | 1975-07-12 | ||
| US3995252A (en) * | 1973-12-26 | 1976-11-30 | General Electric Company | Data processing arrangement for printers |
| JPS5187917A (no) * | 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 (en) * | 1992-06-08 | 1999-03-24 | Synaptics, Inc. | Object position detector |
| 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)
| 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 |
-
1970
- 1970-09-14 US US71972A patent/US3675239A/en not_active Expired - Lifetime
-
1971
- 1971-08-05 GB GB3682071A patent/GB1316215A/en not_active Expired
- 1971-08-09 ZA ZA715289A patent/ZA715289B/xx unknown
- 1971-08-13 AU AU32321/71A patent/AU443750B2/en not_active Expired
- 1971-08-25 SE SE10762/71A patent/SE361222B/xx unknown
- 1971-09-02 ES ES394738A patent/ES394738A1/es not_active Expired
- 1971-09-06 NO NO3317/71A patent/NO131956C/no unknown
- 1971-09-09 DE DE19712145119 patent/DE2145119B2/de active Granted
- 1971-09-13 FR FR7132868A patent/FR2112956A5/fr not_active Expired
- 1971-09-13 BE BE772502A patent/BE772502A/xx not_active IP Right Cessation
- 1971-09-13 BR BR5984/71A patent/BR7105984D0/pt unknown
- 1971-09-13 CA CA122709A patent/CA923433A/en not_active Expired
- 1971-09-14 NL NLAANVRAGE7112625,A patent/NL178455C/xx not_active IP Right Cessation
- 1971-09-14 AT AT796071A patent/AT313608B/de not_active IP Right Cessation
- 1971-09-14 CH CH1340571A patent/CH535458A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ES394738A1 (es) | 1974-10-01 |
| GB1316215A (en) | 1973-05-09 |
| BE772502A (fr) | 1972-01-17 |
| NO131956B (no) | 1975-05-20 |
| SE361222B (no) | 1973-10-22 |
| DE2145119A1 (de) | 1972-03-23 |
| NL7112625A (no) | 1972-03-16 |
| FR2112956A5 (no) | 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 (no) | 1973-10-11 |
| ZA715289B (en) | 1972-04-26 |
| AU3232171A (en) | 1973-02-15 |
| AT313608B (de) | 1974-02-25 |
| DE2145119B2 (de) | 1973-03-22 |
| AU443750B2 (en) | 1974-01-03 |
| BR7105984D0 (pt) | 1973-04-10 |