WO2008039924A3 - Touch switch with reduced susceptibility to electrical interference - Google Patents
Touch switch with reduced susceptibility to electrical interference Download PDFInfo
- Publication number
- WO2008039924A3 WO2008039924A3 PCT/US2007/079725 US2007079725W WO2008039924A3 WO 2008039924 A3 WO2008039924 A3 WO 2008039924A3 US 2007079725 W US2007079725 W US 2007079725W WO 2008039924 A3 WO2008039924 A3 WO 2008039924A3
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- touch switch
- electrical interference
- reduced susceptibility
- electrical
- susceptibility
- Prior art date
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
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/94052—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated with evaluation of actuation pattern or sequence, e.g. tapping
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9607—Capacitive touch switches
- H03K2217/960705—Safety of capacitive touch and proximity switches, e.g. increasing reliability, fail-safe
Landscapes
- Electronic Switches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Push-Button Switches (AREA)
Abstract
An electrical touch switch (10) employs an excitation signal (16) encoded with a predetermined pattern (30) to improve discrimination against electromagnetic interference (42).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82716306P | 2006-09-27 | 2006-09-27 | |
US60/827,163 | 2006-09-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2008039924A2 WO2008039924A2 (en) | 2008-04-03 |
WO2008039924A3 true WO2008039924A3 (en) | 2008-06-12 |
Family
ID=39230978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2007/079725 WO2008039924A2 (en) | 2006-09-27 | 2007-09-27 | Touch switch with reduced susceptibility to electrical interference |
Country Status (1)
Country | Link |
---|---|
WO (1) | WO2008039924A2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8988080B2 (en) | 2010-06-08 | 2015-03-24 | Iee International Electronics & Engineering S.A. | Capacitive measurement system with increased robustness against electro-magnetic interference |
US9551738B2 (en) | 2010-06-08 | 2017-01-24 | Iee International Electronics & Engineering S.A. | Robust capacitive measurement system |
DE112011101946T5 (en) | 2010-06-08 | 2013-05-02 | Iee International Electronics & Engineering S.A. | Robust capacitive measuring system |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4215366A (en) * | 1977-10-19 | 1980-07-29 | Feature Film Services | Subscriber-limited reception television broadcast security encoder-decoder system |
US5920310A (en) * | 1996-11-15 | 1999-07-06 | Synaptics, Incorporated | Electronic device employing a touch sensitive transducer |
US20020050983A1 (en) * | 2000-09-26 | 2002-05-02 | Qianjun Liu | Method and apparatus for a touch sensitive system employing spread spectrum technology for the operation of one or more input devices |
US7046230B2 (en) * | 2001-10-22 | 2006-05-16 | Apple Computer, Inc. | Touch pad handheld device |
-
2007
- 2007-09-27 WO PCT/US2007/079725 patent/WO2008039924A2/en active Search and Examination
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4215366A (en) * | 1977-10-19 | 1980-07-29 | Feature Film Services | Subscriber-limited reception television broadcast security encoder-decoder system |
US5920310A (en) * | 1996-11-15 | 1999-07-06 | Synaptics, Incorporated | Electronic device employing a touch sensitive transducer |
US20020050983A1 (en) * | 2000-09-26 | 2002-05-02 | Qianjun Liu | Method and apparatus for a touch sensitive system employing spread spectrum technology for the operation of one or more input devices |
US7046230B2 (en) * | 2001-10-22 | 2006-05-16 | Apple Computer, Inc. | Touch pad handheld device |
Also Published As
Publication number | Publication date |
---|---|
WO2008039924A2 (en) | 2008-04-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1900068A4 (en) | Rotatable magnetic electrical connector | |
GB2452211B (en) | Communications connectors with signal current splitting | |
NZ592069A (en) | Lock with electrically releasable blocker member which can block movement of latch member from extended to retracted position | |
TWI319934B (en) | Touch sensor and signal generation method thereof | |
IL178388A0 (en) | Magnetic sensor assembly | |
IL173472A0 (en) | An architecture for identifying electronic threat patterns | |
EP1982253A4 (en) | Touch detection | |
WO2008057799A3 (en) | Split rogowski coil current measuring device and methods | |
GB2427242A8 (en) | Magnetic button fastener with circuit actuating abillity | |
GB0513906D0 (en) | Fastener incorporating electrical switch | |
GB2432053B8 (en) | Electrical switch assembly | |
TWI267021B (en) | Touch panel supporting dual-surface operation | |
EP1761743B8 (en) | Arrangement comprising a magnetic field sensor | |
GB0608312D0 (en) | Magnetic Detecting Element | |
WO2008034590A3 (en) | Sensor for examining a value document, and method for the production of said sensor | |
GB0506989D0 (en) | An electrical circuit, a detection system and an operating method thereof | |
GB0602488D0 (en) | Magnetic detecting element | |
HK1106871A1 (en) | Electrical switch and fixed contact therefor | |
WO2008039924A3 (en) | Touch switch with reduced susceptibility to electrical interference | |
WO2010056466A3 (en) | Haptic effect generation with an eccentric rotating mass actuator | |
WO2007129279A3 (en) | A magnetic system for biosensors | |
GB0504552D0 (en) | Signal detection techniques | |
GB2429844B (en) | Electrical switch | |
TW572477U (en) | Magnetic force sensing coupler | |
EP1812991A4 (en) | Circuit board with adaptive, electromagnetic coupler |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07843359 Country of ref document: EP Kind code of ref document: A2 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) | ||
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 07843359 Country of ref document: EP Kind code of ref document: A2 |
|
DPE1 | Request for preliminary examination filed after expiration of 19th month from priority date (pct application filed from 20040101) |