JPS5024569B1 - - Google Patents
Info
- Publication number
- JPS5024569B1 JPS5024569B1 JP708544A JP854470A JPS5024569B1 JP S5024569 B1 JPS5024569 B1 JP S5024569B1 JP 708544 A JP708544 A JP 708544A JP 854470 A JP854470 A JP 854470A JP S5024569 B1 JPS5024569 B1 JP S5024569B1
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
- H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82131169A | 1969-05-02 | 1969-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5024569B1 true JPS5024569B1 (en) | 1975-08-16 |
Family
ID=25233062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP708544A Pending JPS5024569B1 (en) | 1969-05-02 | 1970-02-02 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3603982A (en) |
| JP (1) | JPS5024569B1 (en) |
| CA (1) | CA923429A (en) |
| GB (1) | GB1238428A (en) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3808363A (en) * | 1970-12-23 | 1974-04-30 | Datel Corp | Conversational data terminal having a function repeat capability |
| US3937952A (en) * | 1972-09-22 | 1976-02-10 | National Research Development Corporation | Keyboard and switches for keyboards |
| US3856127A (en) * | 1972-11-24 | 1974-12-24 | U Halfon | Photo-optical keyboard |
| US3886544A (en) * | 1974-06-12 | 1975-05-27 | Leo H Narodny | Keyboard using optical switching |
| US4049964A (en) * | 1976-04-01 | 1977-09-20 | Cavitron Corporation | Optical switching device |
| US4417824A (en) * | 1982-03-29 | 1983-11-29 | International Business Machines Corporation | Optical keyboard with common light transmission members |
| JPS6014724A (en) * | 1983-07-02 | 1985-01-25 | テー・アー・トリウムフ―アドレル・アクチエンゲゼルシヤフト | Photoelectric key unit |
| USRE33422E (en) * | 1984-02-02 | 1990-11-06 | Optically activated keyboard for digital system | |
| US4641026A (en) * | 1984-02-02 | 1987-02-03 | Texas Instruments Incorporated | Optically activated keyboard for digital system |
| US4634861A (en) * | 1984-12-19 | 1987-01-06 | General Instrument Corporation | Rotary switch with reflector coded actuator drum |
| FR2597682A1 (en) * | 1986-04-21 | 1987-10-23 | Ferco Int Usine Ferrures | KEYBOARD FOR ELECTRICAL APPLIANCE. |
| FR2597683B1 (en) * | 1986-04-22 | 1992-07-31 | Battarel Claude | RADIATION INTERRUPTION KEYBOARD. |
| DE3700856A1 (en) * | 1987-01-14 | 1988-07-28 | Telefunken Electronic Gmbh | OPTOELECTRONIC KEYBOARD |
| AU2304888A (en) * | 1987-08-21 | 1989-03-09 | Pennwalt Corporation | Pyroelectric keyboard |
| US6853366B2 (en) * | 2002-10-11 | 2005-02-08 | James H. Bowen | Articulator and optical detection cursor positioning device |
| US6705783B1 (en) | 2002-10-11 | 2004-03-16 | James H. Bowen | Ruggedized keyboard with cursor positioning device |
| US20040190968A1 (en) * | 2003-03-25 | 2004-09-30 | Tai-Her Yang | Keyboard of multi-point multiple common keys |
| GB2406944A (en) * | 2003-10-09 | 2005-04-13 | Motorola Inc | Keyboard switching devices |
| FR2878062A1 (en) * | 2004-11-18 | 2006-05-19 | Finsecur Sa | MANUAL TRIGGER METHOD AND DEVICE |
| US7446677B2 (en) * | 2005-11-14 | 2008-11-04 | Avago Technologies Ecbu Ip Pte Ltd | Method and apparatus for optically detecting selections made on an input device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3017463A (en) * | 1959-04-10 | 1962-01-16 | Bendix Corp | Keyboard apparatus |
| NL277886A (en) * | 1961-05-02 | |||
| US3495239A (en) * | 1967-08-15 | 1970-02-10 | Teletype Corp | Photoelectric keyboard |
-
1969
- 1969-05-02 US US821311A patent/US3603982A/en not_active Expired - Lifetime
-
1970
- 1970-01-30 CA CA073578A patent/CA923429A/en not_active Expired
- 1970-01-30 GB GB1238428D patent/GB1238428A/en not_active Expired
- 1970-02-02 JP JP708544A patent/JPS5024569B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3603982A (en) | 1971-09-07 |
| GB1238428A (en) | 1971-07-07 |
| CA923429A (en) | 1973-03-27 |