Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017062103) COMPENSATING FORCE BASELINE ARTIFACTS IN A CAPACITIVE SENSOR
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/062103 International Application No.: PCT/US2016/047079
Publication Date: 13.04.2017 International Filing Date: 15.08.2016
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:
SYNAPTICS INCORPORATED [US/US]; 1251 McKay Drive San Jose, California 95131, US
Inventors:
RAMAKRISHNAN, Shubha; US
SCHWARTZ, Adam L.; US
Agent:
PARADICE III, William, L.; US
Priority Data:
15/199,42130.06.2016US
62/239,83709.10.2015US
Title (EN) COMPENSATING FORCE BASELINE ARTIFACTS IN A CAPACITIVE SENSOR
(FR) COMPENSATION D'ARTEFACTS DE LIGNE DE BASE DE FORCE DANS UN CAPTEUR CAPACITIF
Abstract:
(EN) An example processing system for a capacitive input device includes sensor circuitry configured to drive a plurality of sensor electrodes with capacitive sensing signals over time to acquire capacitive values of a plurality of capacitive frames. The processing system includes a determination module configured to analyze a first capacitive frame of the plurality of capacitive frames to identify a force event by detecting that a rate of change of a first capacitive value in the first capacitive frame exceeds a first threshold. The determination module is configured to determine a change in capacitance between the first capacitive value and a baseline value, and analyze a second capacitive frame of the plurality of capacitive frames acquired after the force event to adjust the baseline value responsive to a difference between the baseline value and a second capacitive value in the second capacitive frame falling below a second threshold.
(FR) Selon l'invention, un système de traitement illustratif pour un dispositif de saisie capacitif contient de la circuiterie de capteur configurée pour piloter une pluralité d'électrodes de capteur avec des signaux de détection capacitive dans le temps pour acquérir des valeurs capacitives d'une pluralité de trames capacitives. Le système de traitement comprend un module de détermination configuré pour analyser une première trame capacitive de la pluralité de trames capacitives pour identifier un événement de force en détectant qu'une vitesse de changement d'une première valeur capacitive dans la première trame capacitive dépasse un premier seuil. Le module de détermination est configuré pour déterminer un changement de capacité entre la première valeur capacitive et une valeur de ligne de base, et analyser une deuxième trame capacitive de la pluralité de trames capacitives acquises après l'événement de force pour régler la valeur de ligne de base en réponse à une différence entre la valeur de ligne de base et une deuxième valeur capacitive dans la deuxième trame capacitive diminuant en dessous d'un deuxième seuil.
front page image
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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)