FI956005A0 - Tastaturstruktur som minskar elektromagnetisk stoerning - Google Patents
Tastaturstruktur som minskar elektromagnetisk stoerningInfo
- Publication number
- FI956005A0 FI956005A0 FI956005A FI956005A FI956005A0 FI 956005 A0 FI956005 A0 FI 956005A0 FI 956005 A FI956005 A FI 956005A FI 956005 A FI956005 A FI 956005A FI 956005 A0 FI956005 A0 FI 956005A0
- Authority
- FI
- Finland
- Prior art keywords
- stoerning
- electromagnetic
- key structure
- key
- electromagnetic stoerning
- Prior art date
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
- H03M11/22—Static coding
- H03M11/24—Static coding using analogue means, e.g. by coding the states of multiple switches into a single multi-level analogue signal or by indicating the type of a device using the voltage level at a specific tap of a resistive divider
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
- H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/004—High frequency adaptation or shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/008—Static electricity considerations
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/01—Miscellaneous combined with other elements on the same substrate
- H01H2239/012—Decoding impedances
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2239/00—Miscellaneous
- H01H2239/018—Ground conductor
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Input From Keyboards Or The Like (AREA)
- Push-Button Switches (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI956005A FI100142B (fi) | 1995-12-14 | 1995-12-14 | Sähkömagneettisia häiriöitä vähentävä näppäimistörakenne |
EP96119396A EP0779715A3 (en) | 1995-12-14 | 1996-12-04 | Keyboard structure for reducing electromagnetic interference |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI956005A FI100142B (fi) | 1995-12-14 | 1995-12-14 | Sähkömagneettisia häiriöitä vähentävä näppäimistörakenne |
Publications (3)
Publication Number | Publication Date |
---|---|
FI956005A0 true FI956005A0 (fi) | 1995-12-14 |
FI956005A FI956005A (fi) | 1997-06-15 |
FI100142B FI100142B (fi) | 1997-09-30 |
Family
ID=8544545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI956005A FI100142B (fi) | 1995-12-14 | 1995-12-14 | Sähkömagneettisia häiriöitä vähentävä näppäimistörakenne |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0779715A3 (fi) |
FI (1) | FI100142B (fi) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114035697A (zh) * | 2021-11-26 | 2022-02-11 | 中国电子技术标准化研究院 | 一种低辐射抗电磁干扰的键盘鼠标模拟装置及方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6477274B1 (en) * | 1999-10-22 | 2002-11-05 | Ericsson Inc. | Handwritten character recognition devices and electronic devices incorporating same |
SE522004C2 (sv) * | 2001-05-09 | 2004-01-07 | Comex Electronics Ab | Förfarande och anordning för att minska förekomsten av röjande signaler från ett tangentbord |
US7363063B2 (en) * | 2004-08-31 | 2008-04-22 | Research In Motion Limited | Mobile wireless communications device with reduced interference from the keyboard into the radio receiver |
US7243851B2 (en) * | 2004-08-31 | 2007-07-17 | Research In Motion Limited | Mobile wireless communications device with reduced interfering energy from the keyboard |
TWI324898B (en) | 2004-11-23 | 2010-05-11 | Qisda Corp | Keyboard circuit with electrostatic discharge protection |
FR2910652B1 (fr) * | 2006-12-21 | 2009-04-24 | Dav Sa | Module de commande electrique, en particulier pour vehicule automobile |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2370348A1 (fr) * | 1976-11-05 | 1978-06-02 | Leveille Marc | Contacteur matriciel pour affichage video notamment |
GB2102626B (en) * | 1981-07-21 | 1985-06-05 | Standard Telephones Cables Ltd | Contact dimple pad |
US4725816A (en) * | 1984-12-10 | 1988-02-16 | John Fluke Mfg. Co., Inc. | Matrix keyboard encoder circuit |
-
1995
- 1995-12-14 FI FI956005A patent/FI100142B/fi active
-
1996
- 1996-12-04 EP EP96119396A patent/EP0779715A3/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114035697A (zh) * | 2021-11-26 | 2022-02-11 | 中国电子技术标准化研究院 | 一种低辐射抗电磁干扰的键盘鼠标模拟装置及方法 |
CN114035697B (zh) * | 2021-11-26 | 2023-10-03 | 中国电子技术标准化研究院 | 一种低辐射抗电磁干扰的键盘鼠标模拟装置及方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0779715A3 (en) | 1998-09-30 |
FI100142B (fi) | 1997-09-30 |
EP0779715A2 (en) | 1997-06-18 |
FI956005A (fi) | 1997-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HC | Name/ company changed in application |
Owner name: NOKIA DISPLAY PRODUCTS OY |