DE3543784A1 - Tastatur - Google Patents
TastaturInfo
- Publication number
- DE3543784A1 DE3543784A1 DE19853543784 DE3543784A DE3543784A1 DE 3543784 A1 DE3543784 A1 DE 3543784A1 DE 19853543784 DE19853543784 DE 19853543784 DE 3543784 A DE3543784 A DE 3543784A DE 3543784 A1 DE3543784 A1 DE 3543784A1
- Authority
- DE
- Germany
- Prior art keywords
- light guide
- light
- keyboard
- keys
- key
- 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
- 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
Landscapes
- Input From Keyboards Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853543784 DE3543784A1 (de) | 1985-12-09 | 1985-12-09 | Tastatur |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853543784 DE3543784A1 (de) | 1985-12-09 | 1985-12-09 | Tastatur |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3543784A1 true DE3543784A1 (de) | 1987-06-11 |
DE3543784C2 DE3543784C2 (fr) | 1989-01-12 |
Family
ID=6288190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19853543784 Granted DE3543784A1 (de) | 1985-12-09 | 1985-12-09 | Tastatur |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3543784A1 (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805932A1 (de) * | 1988-02-25 | 1989-09-07 | Pedro Rodriguez | Optoelektronische schalter und tastatur mittels lichtwellenleiter |
DE19638788A1 (de) * | 1996-09-21 | 1998-03-26 | Grohe Kg Hans | Sanitärarmatur |
CN101846772A (zh) * | 2009-03-23 | 2010-09-29 | 陈�峰 | 薄膜光波导纵横开关模块 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4441222C2 (de) * | 1994-11-19 | 2003-02-06 | Karlheinz Beckhausen | Sicherheitseinrichtung mit Lichtwellenleiter |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307336C2 (de) * | 1983-03-02 | 1985-09-12 | Krone Gmbh, 1000 Berlin | Opto-elektrische Tastatur |
-
1985
- 1985-12-09 DE DE19853543784 patent/DE3543784A1/de active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3307336C2 (de) * | 1983-03-02 | 1985-09-12 | Krone Gmbh, 1000 Berlin | Opto-elektrische Tastatur |
Non-Patent Citations (1)
Title |
---|
LEMME, H.: Tastatur mit Lichtwellenleitern. In: Elektronik, 26/28.12.1984, S.87 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3805932A1 (de) * | 1988-02-25 | 1989-09-07 | Pedro Rodriguez | Optoelektronische schalter und tastatur mittels lichtwellenleiter |
DE19638788A1 (de) * | 1996-09-21 | 1998-03-26 | Grohe Kg Hans | Sanitärarmatur |
CN101846772A (zh) * | 2009-03-23 | 2010-09-29 | 陈�峰 | 薄膜光波导纵横开关模块 |
Also Published As
Publication number | Publication date |
---|---|
DE3543784C2 (fr) | 1989-01-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |