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1. (WO2019067267) MULTI-POWER DOMAIN TOUCH SENSING
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/067267 International Application No.: PCT/US2018/051587
Publication Date: 04.04.2019 International Filing Date: 18.09.2018
IPC:
G06F 3/041 (2006.01) ,G06F 3/044 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01
Input arrangements or combined input and output arrangements for interaction between user and computer
03
Arrangements for converting the position or the displacement of a member into a coded form
041
Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
044
by capacitive means
Applicants:
APPLE INC. [US/US]; One Apple Park Way Cupertino, California 95014, US
Inventors:
KRAH, Christoph H.; US
Agent:
STATMAN, Jonathan Z.; US
Priority Data:
62/566,08929.09.2017US
Title (EN) MULTI-POWER DOMAIN TOUCH SENSING
(FR) DÉTECTION TACTILE À MULTIPLES DOMAINES DE PUISSANCE
Abstract:
(EN) The disclosure relates to a touch and/or proximity detection system having some components operating in the guard domain and other components operating in the earth or chassis ground domain. A guard chip in the earth or chassis ground domain can include a voltage driver configured to produce a guard signal, for example. In some examples, the guard signal can be coupled to one or more shielding electrodes of a touch screen and to the ground pin of one or more touch sensing chips of the touch and/or proximity detection system. In this way, for example, the touch sensing chips, which can include sense amplifiers coupled to one or more sensing electrodes of the touch screen, can operate in the guard domain. In some examples, the guard chip can further include differential amplifiers and/or ADCs, allowing these components to operate in the earth or chassis ground domain.
(FR) L'invention concerne un système de détection tactile et/ou de proximité comportant certains composants fonctionnant dans le domaine de garde et d'autres composants fonctionnant dans le domaine de masse terrestre ou de châssis. Une puce de garde dans le domaine de masse terrestre ou de châssis peut contenir un pilote de tension configuré pour produire un signal de garde, par exemple. Dans certains exemples, le signal de garde peut être couplé à une ou plusieurs électrodes de blindage d'un écran tactile et à la broche de masse d'une ou de plusieurs puces de détection tactile du système de détection tactile et/ou de proximité. De cette manière, par exemple, les puces de détection tactile, qui peuvent contenir des amplificateurs de détection couplés à une ou plusieurs électrodes de détection de l'écran tactile, peuvent fonctionner dans le domaine de garde. Dans certains exemples, la puce de garde peut aussi contenir des amplificateurs différentiels et/ou des CAN, ce qui permet à ces composants de fonctionner dans le domaine de masse terrestre ou de châssis.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)