JPS5621170B2 - - Google Patents
Info
- Publication number
- JPS5621170B2 JPS5621170B2 JP794174A JP794174A JPS5621170B2 JP S5621170 B2 JPS5621170 B2 JP S5621170B2 JP 794174 A JP794174 A JP 794174A JP 794174 A JP794174 A JP 794174A JP S5621170 B2 JPS5621170 B2 JP S5621170B2
- Authority
- JP
- Japan
- Legal status (The legal status 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 status listed.)
- Expired
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 OR CALCULATING; 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
- G06F3/0227—Cooperation and interconnection of the input arrangement with other functional units of a computer
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)
- Digital Computer Display Output (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00329955A US3825926A (en) | 1973-02-05 | 1973-02-05 | Interfacing circuitry for connecting a remote keyboard with a data receiving buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS49107627A JPS49107627A (enExample) | 1974-10-12 |
| JPS5621170B2 true JPS5621170B2 (enExample) | 1981-05-18 |
Family
ID=23287726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP794174A Expired JPS5621170B2 (enExample) | 1973-02-05 | 1974-01-18 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3825926A (enExample) |
| JP (1) | JPS5621170B2 (enExample) |
| DE (1) | DE2401021A1 (enExample) |
| FR (1) | FR2253241B1 (enExample) |
| GB (1) | GB1429411A (enExample) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920926A (en) * | 1973-12-07 | 1975-11-18 | Northern Electric Co | Telephone data set including visual display means |
| US3973256A (en) * | 1975-07-14 | 1976-08-03 | Compucorp | Key detection system interconnecting keyboard and data processing system |
| US4064560A (en) * | 1975-07-25 | 1977-12-20 | Bunker Ramo Corporation | Master keyboard terminal with auxiliary keyboard terminal capability |
| US4106011A (en) * | 1975-10-24 | 1978-08-08 | Tektronix, Inc. | Keyboard circuit |
| GB1575002A (en) * | 1976-03-11 | 1980-09-17 | Post Office | Data transmission system |
| JPS5367728U (enExample) * | 1976-11-09 | 1978-06-07 | ||
| US4194188A (en) * | 1977-09-26 | 1980-03-18 | Redactron Corporation | Interrogation of key switches using pulse width detection |
| JPS54121026A (en) * | 1978-03-13 | 1979-09-19 | Fujitsu Ltd | Input control system |
| GB2083669B (en) * | 1980-09-05 | 1985-01-03 | Casio Computer Co Ltd | Key data entry system |
| GB2094529B (en) * | 1981-03-06 | 1984-07-18 | Solartron Electronic Group The | Keyboard modules for use in data terminals |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3675239A (en) * | 1970-09-14 | 1972-07-04 | Ncr Co | Unlimited roll keyboard circuit |
| NL166140C (nl) * | 1970-11-14 | 1981-06-15 | Philips Nv | Toetsenbord. |
| US3760409A (en) * | 1971-11-17 | 1973-09-18 | Alan M Voorhees | Programmable keyboard and keys |
-
1973
- 1973-02-05 US US00329955A patent/US3825926A/en not_active Expired - Lifetime
-
1974
- 1974-01-09 GB GB99774A patent/GB1429411A/en not_active Expired
- 1974-01-10 DE DE2401021A patent/DE2401021A1/de active Pending
- 1974-01-18 JP JP794174A patent/JPS5621170B2/ja not_active Expired
- 1974-01-21 FR FR7404777A patent/FR2253241B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3825926A (en) | 1974-07-23 |
| FR2253241A1 (enExample) | 1975-06-27 |
| JPS49107627A (enExample) | 1974-10-12 |
| GB1429411A (en) | 1976-03-24 |
| DE2401021A1 (de) | 1974-08-08 |
| FR2253241B1 (enExample) | 1978-06-16 |