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1. (WO2018106872) CONTROLLING A DEVICE BY TRACKING THE MOVEMENT OF A FINGER
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Pub. No.: WO/2018/106872 International Application No.: PCT/US2017/065031
Publication Date: 14.06.2018 International Filing Date: 07.12.2017
IPC:
G06F 3/041 (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
Applicants:
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM [US/US]; 210 West 7th Street Austin, TX 78701, US
Inventors:
LILI, Qiu; US
SANGKI, Yun; US
Agent:
VOIGT, Robert A. Jr.; US
Priority Data:
62/432,45309.12.2016US
Title (EN) CONTROLLING A DEVICE BY TRACKING THE MOVEMENT OF A FINGER
(FR) COMMANDE D'UN DISPOSITIF PAR SUIVI DU MOUVEMENT D'UN DOIGT
Abstract:
(EN) A method, system and computer program product for controlling a device (e.g., smartphone) by tracking a movement of a target (e.g., finger). A channel impulse response which characterizes signal traversal paths with different delays is estimated. Channel tap(s) corresponding to the target are then selected. The phase change of the selected channel taps is tracked based on the estimated channel impulse response to estimate a distance change of the target from the device. An estimate of an absolute distance between the device and the target is estimated based on the estimated channel impulse response. A more accurate absolute distance between the device and the target is calculated by combining the estimated absolute distance and the estimated distance change. The position of the target is then tracked based on a distance to different landmarks (e.g., microphones) on the device using the more accurate absolute distance and the estimated distance change.
(FR) L'invention concerne un procédé, un système et un produit de programme informatique destinés à commander un dispositif (p. ex. ordiphone) en suivant le mouvement d'une cible (p. ex. un doigt). Une réponse impulsionnelle de canal qui caractérise des parcours de cheminement de signal avec des retards différents est estimée. Une ou des prises de canal correspondant à la cible sont ensuite sélectionnées. La variation de phase des prises de canal sélectionnées est suivie d'après la réponse impulsionnelle de canal estimée pour estimer une variation de distance de la cible par rapport au dispositif. Une estimation d'une distance absolue entre le dispositif et la cible est estimée d'après la réponse impulsionnelle de canal estimée. Une distance absolue plus précise entre le dispositif et la cible est calculée en combinant la distance absolue estimée et la variation de distance estimée. La position de la cible est ensuite suivie d'après une distance à différents points de repère (p. ex. des microphones) sur le dispositif en utilisant la distance absolue plus précise et la variation de distance estimée.
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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 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)