JPS57150027A - Keyboard encoder - Google Patents
Keyboard encoderInfo
- Publication number
- JPS57150027A JPS57150027A JP56035091A JP3509181A JPS57150027A JP S57150027 A JPS57150027 A JP S57150027A JP 56035091 A JP56035091 A JP 56035091A JP 3509181 A JP3509181 A JP 3509181A JP S57150027 A JPS57150027 A JP S57150027A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- output
- key
- circuit
- key switch
- 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.)
- Granted
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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56035091A JPS57150027A (en) | 1981-03-11 | 1981-03-11 | Keyboard encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56035091A JPS57150027A (en) | 1981-03-11 | 1981-03-11 | Keyboard encoder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57150027A true JPS57150027A (en) | 1982-09-16 |
| JPS6135567B2 JPS6135567B2 (enExample) | 1986-08-13 |
Family
ID=12432281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56035091A Granted JPS57150027A (en) | 1981-03-11 | 1981-03-11 | Keyboard encoder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57150027A (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173329A (ja) * | 1985-01-28 | 1986-08-05 | Matsushita Electric Ind Co Ltd | スイツチスキヤン装置 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4841628A (enExample) * | 1971-09-27 | 1973-06-18 | ||
| JPS5386527A (en) * | 1977-01-10 | 1978-07-31 | Hitachi Ltd | Key input circuit |
| JPS5567829A (en) * | 1978-11-16 | 1980-05-22 | Brother Ind Ltd | Keyboard input device |
-
1981
- 1981-03-11 JP JP56035091A patent/JPS57150027A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4841628A (enExample) * | 1971-09-27 | 1973-06-18 | ||
| JPS5386527A (en) * | 1977-01-10 | 1978-07-31 | Hitachi Ltd | Key input circuit |
| JPS5567829A (en) * | 1978-11-16 | 1980-05-22 | Brother Ind Ltd | Keyboard input device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61173329A (ja) * | 1985-01-28 | 1986-08-05 | Matsushita Electric Ind Co Ltd | スイツチスキヤン装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6135567B2 (enExample) | 1986-08-13 |
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