SE385986B - KEYBOARD WITH "ROLLS" - Google Patents
KEYBOARD WITH "ROLLS"Info
- Publication number
- SE385986B SE385986B SE7214763A SE1476372A SE385986B SE 385986 B SE385986 B SE 385986B SE 7214763 A SE7214763 A SE 7214763A SE 1476372 A SE1476372 A SE 1476372A SE 385986 B SE385986 B SE 385986B
- Authority
- SE
- Sweden
- Prior art keywords
- rolls
- keyboard
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L13/00—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00
- H04L13/16—Details of the apparatus or circuits covered by groups H04L15/00 or H04L17/00 of transmitters, e.g. code-bars, code-discs
-
- 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
- H03M11/003—Phantom keys detection and prevention
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input From Keyboards Or The Like (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7115804,A NL170895C (en) | 1971-11-17 | 1971-11-17 | KEYBOARD WITH CYCLIC QUESTIONER. |
Publications (1)
Publication Number | Publication Date |
---|---|
SE385986B true SE385986B (en) | 1976-07-26 |
Family
ID=19814496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7214763A SE385986B (en) | 1971-11-17 | 1972-11-14 | KEYBOARD WITH "ROLLS" |
Country Status (10)
Country | Link |
---|---|
US (1) | US3778818A (en) |
JP (1) | JPS538455B2 (en) |
BE (1) | BE791475A (en) |
CA (1) | CA973805A (en) |
DE (1) | DE2255372C3 (en) |
FR (1) | FR2161660A5 (en) |
GB (1) | GB1410811A (en) |
IT (1) | IT973544B (en) |
NL (1) | NL170895C (en) |
SE (1) | SE385986B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096935A (en) * | 1974-02-22 | 1978-06-27 | Canon Kabushiki Kaisha | Input device |
JPS5535679U (en) * | 1978-08-31 | 1980-03-07 | ||
FR2447089A1 (en) * | 1979-01-17 | 1980-08-14 | Serras Paulet Edouard | KEY CONTROL KEYBOARD AND MECHANICAL SWITCHES |
FR2449388A1 (en) * | 1979-02-13 | 1980-09-12 | Cii Honeywell Bull | Entry system for coded data into data processing system - employs electronic keyboard containing memory and coding cells, which are clocked by pulse generator |
EP0095023A3 (en) * | 1982-05-20 | 1985-04-10 | International Business Machines Corporation | Contact keyboard with finger controlled n-key rollover |
US4500169A (en) * | 1982-07-13 | 1985-02-19 | Donnelly John H | Cosmetic and observer line of sight mirror |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5035372B1 (en) * | 1970-03-26 | 1975-11-15 |
-
0
- BE BE791475D patent/BE791475A/en not_active IP Right Cessation
-
1971
- 1971-11-17 NL NLAANVRAGE7115804,A patent/NL170895C/en not_active IP Right Cessation
-
1972
- 1972-11-07 US US00304388A patent/US3778818A/en not_active Expired - Lifetime
- 1972-11-11 DE DE2255372A patent/DE2255372C3/en not_active Expired
- 1972-11-14 JP JP11359072A patent/JPS538455B2/ja not_active Expired
- 1972-11-14 GB GB5250572A patent/GB1410811A/en not_active Expired
- 1972-11-14 SE SE7214763A patent/SE385986B/en unknown
- 1972-11-14 IT IT54014/72A patent/IT973544B/en active
- 1972-11-15 CA CA156,456A patent/CA973805A/en not_active Expired
- 1972-11-16 FR FR7240705A patent/FR2161660A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS4858922A (en) | 1973-08-18 |
NL170895C (en) | 1983-01-03 |
DE2255372B2 (en) | 1977-10-13 |
DE2255372A1 (en) | 1973-05-24 |
DE2255372C3 (en) | 1978-06-08 |
BE791475A (en) | 1973-05-16 |
NL170895B (en) | 1982-08-02 |
IT973544B (en) | 1974-06-10 |
GB1410811A (en) | 1975-10-22 |
US3778818A (en) | 1973-12-11 |
CA973805A (en) | 1975-09-02 |
NL7115804A (en) | 1973-05-21 |
JPS538455B2 (en) | 1978-03-29 |
FR2161660A5 (en) | 1973-07-06 |
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