JPS51113415A - Key reading system and devices - Google Patents
Key reading system and devicesInfo
- Publication number
- JPS51113415A JPS51113415A JP50037527A JP3752775A JPS51113415A JP S51113415 A JPS51113415 A JP S51113415A JP 50037527 A JP50037527 A JP 50037527A JP 3752775 A JP3752775 A JP 3752775A JP S51113415 A JPS51113415 A JP S51113415A
- Authority
- JP
- Japan
- Prior art keywords
- devices
- reading system
- key reading
- terminals
- liquid crystal
- 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
Landscapes
- Calculators And Similar Devices (AREA)
- Input From Keyboards Or The Like (AREA)
- Digital Computer Display Output (AREA)
Abstract
PURPOSE: Using one or two personal terminals and a signal input terminal as even key inputs for liquid crystal driving it is possible to read keys omitting many terminals.
COPYRIGHT: (C)1976,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50037527A JPS5818648B2 (en) | 1975-03-28 | 1975-03-28 | key reading device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50037527A JPS5818648B2 (en) | 1975-03-28 | 1975-03-28 | key reading device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS51113415A true JPS51113415A (en) | 1976-10-06 |
JPS5818648B2 JPS5818648B2 (en) | 1983-04-14 |
Family
ID=12500003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50037527A Expired JPS5818648B2 (en) | 1975-03-28 | 1975-03-28 | key reading device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5818648B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51114023A (en) * | 1975-03-31 | 1976-10-07 | Sharp Corp | A control unit for in and output signals |
JPS5371530A (en) * | 1976-12-08 | 1978-06-26 | Hitachi Ltd | Input circuit |
JPS53125727A (en) * | 1977-04-08 | 1978-11-02 | Citizen Watch Co Ltd | Input circuit for keyboard |
JPS5622514U (en) * | 1979-07-24 | 1981-02-28 | ||
JPS5881334A (en) * | 1981-11-11 | 1983-05-16 | Hitachi Ltd | Complementary transistor circuit and information processor using it |
JPS5955535A (en) * | 1982-09-17 | 1984-03-30 | ナシヨナル・セミコンダクタ−・コ−ポレ−シヨン | Output pin of integrated circuit used for input signal |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63144836A (en) * | 1986-12-09 | 1988-06-17 | Mitsubishi Electric Corp | Forming device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5168132A (en) * | 1974-12-10 | 1976-06-12 | Sharp Kk |
-
1975
- 1975-03-28 JP JP50037527A patent/JPS5818648B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5168132A (en) * | 1974-12-10 | 1976-06-12 | Sharp Kk |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51114023A (en) * | 1975-03-31 | 1976-10-07 | Sharp Corp | A control unit for in and output signals |
JPS5371530A (en) * | 1976-12-08 | 1978-06-26 | Hitachi Ltd | Input circuit |
JPS5543696B2 (en) * | 1976-12-08 | 1980-11-07 | ||
JPS53125727A (en) * | 1977-04-08 | 1978-11-02 | Citizen Watch Co Ltd | Input circuit for keyboard |
JPS6040048B2 (en) * | 1977-04-08 | 1985-09-09 | シチズン時計株式会社 | Keyboard input circuit |
JPS5622514U (en) * | 1979-07-24 | 1981-02-28 | ||
JPS5881334A (en) * | 1981-11-11 | 1983-05-16 | Hitachi Ltd | Complementary transistor circuit and information processor using it |
JPH0411884B2 (en) * | 1981-11-11 | 1992-03-02 | Hitachi Ltd | |
JPS5955535A (en) * | 1982-09-17 | 1984-03-30 | ナシヨナル・セミコンダクタ−・コ−ポレ−シヨン | Output pin of integrated circuit used for input signal |
Also Published As
Publication number | Publication date |
---|---|
JPS5818648B2 (en) | 1983-04-14 |
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