JPS5258423A - Key input circuit possible for roll over - Google Patents
Key input circuit possible for roll overInfo
- Publication number
- JPS5258423A JPS5258423A JP50134105A JP13410575A JPS5258423A JP S5258423 A JPS5258423 A JP S5258423A JP 50134105 A JP50134105 A JP 50134105A JP 13410575 A JP13410575 A JP 13410575A JP S5258423 A JPS5258423 A JP S5258423A
- Authority
- JP
- Japan
- Prior art keywords
- key input
- input circuit
- roll over
- circuit possible
- keys
- Prior art date
- 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.)
- Pending
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)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50134105A JPS5258423A (en) | 1975-11-10 | 1975-11-10 | Key input circuit possible for roll over |
NL7601466A NL7601466A (nl) | 1975-11-10 | 1976-02-12 | Toetsingangsketen. |
DE19762605565 DE2605565C3 (de) | 1975-11-10 | 1976-02-12 | Schaltungsanordnung für eine Tasteneingabe |
US05/759,187 US4199750A (en) | 1975-11-10 | 1977-01-13 | Key input circuit capable of roll-over operation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50134105A JPS5258423A (en) | 1975-11-10 | 1975-11-10 | Key input circuit possible for roll over |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5258423A true JPS5258423A (en) | 1977-05-13 |
Family
ID=15120558
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50134105A Pending JPS5258423A (en) | 1975-11-10 | 1975-11-10 | Key input circuit possible for roll over |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS5258423A (ja) |
DE (1) | DE2605565C3 (ja) |
NL (1) | NL7601466A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60138659A (ja) * | 1983-12-27 | 1985-07-23 | Fujitsu Ltd | チヤネル制御方式 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4117407A (en) * | 1975-04-30 | 1978-09-26 | Tokyo Shibaura Electric Co., Ltd. | Frequency synthesizer tuner |
DE2830283A1 (de) * | 1978-07-10 | 1980-01-24 | Siemens Ag | Anschaltung einer tastatur an einen rechner, insbesondere mikrocomputer, zum eingeben von kommandos und/oder kommandofolgen |
US4211915A (en) * | 1978-12-04 | 1980-07-08 | General Electric Company | Keyboard verification system |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4893228A (ja) * | 1972-03-10 | 1973-12-03 |
-
1975
- 1975-11-10 JP JP50134105A patent/JPS5258423A/ja active Pending
-
1976
- 1976-02-12 NL NL7601466A patent/NL7601466A/xx not_active Application Discontinuation
- 1976-02-12 DE DE19762605565 patent/DE2605565C3/de not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4893228A (ja) * | 1972-03-10 | 1973-12-03 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60138659A (ja) * | 1983-12-27 | 1985-07-23 | Fujitsu Ltd | チヤネル制御方式 |
Also Published As
Publication number | Publication date |
---|---|
DE2605565B2 (de) | 1977-11-10 |
DE2605565A1 (de) | 1977-05-12 |
DE2605565C3 (de) | 1978-07-06 |
NL7601466A (nl) | 1977-05-12 |
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