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1. (WO2019005361) PHASE ERROR COMPENSATION IN SINGLE CORRELATOR SYSTEMS
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Pub. No.: WO/2019/005361 International Application No.: PCT/US2018/034503
Publication Date: 03.01.2019 International Filing Date: 25.05.2018
IPC:
G06F 3/0354 (2013.01) ,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
033
Pointing devices displaced or positioned by the user; Accessories therefor
0354
with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
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:
MICROSOFT TECHNOLOGY LICENSING, LLC [US/US]; One Microsoft Way Redmond, Washington 98052-6399, US
Inventors:
ZYSKIND, Amir; US
HARAN, On; US
WESTHUES, Jonathan; US
GUR, Arie Yehuda; US
Agent:
MINHAS, Sandip S.; US
CHEN, Wei-Chen Nicholas; US
DRAKOS, Katherine J.; US
HINOJOSA, Brianna L.; US
HOLMES, Danielle J.; US
SWAIN, Cassandra T.; US
WONG, Thomas S.; US
CHOI, Daniel; US
HWANG, William C.; US
WIGHT, Stephen A.; US
CHATTERJEE, Aaron C.; US
Priority Data:
15/639,42030.06.2017US
Title (EN) PHASE ERROR COMPENSATION IN SINGLE CORRELATOR SYSTEMS
(FR) COMPENSATION D'ERREUR DE PHASE DANS DES SYSTÈMES À CORRÉLATEUR UNIQUE
Abstract:
(EN) Present disclosure provides techniques to compensate for the above-identified signal processing delays between an in-cell digitizer of the touch screen display system and a stylus (or pen). In one example, the delays may be compensated by estimating the stylus-digitizer phase error on the digitizer side and adjusting for the delay accordingly. Specifically, in this example, the digitizer may utilize a quadratic receiver to perform an in-phase and quadratic detection in time domain in order to estimate the phase error. Based on the in-phase and quadratic detection, the digitizer may adapt the subsequent stylus sampling windows to compensate for the detected phase error. In another example, the stylus may transmit a first signal and a second signal that is 90 degrees delayed during a predetermined time slot, and to adapt the stylus sampling windows on the digitizer side in order to compensate for the phase delay.
(FR) La présente invention concerne des techniques pour compenser les retards de traitement de signal identifiés ci-dessus entre un numériseur de cellule du système d'affichage à écran tactile et un stylet (ou stylo). Dans un exemple, les retards peuvent être compensés par estimation de l'erreur de phase du numériseur sur le côté numériseur et par ajustement du retard en conséquence. Spécifiquement, dans cet exemple, le numériseur peut utiliser un récepteur quadratique pour effectuer une détection en phase et quadratique dans le domaine temporel afin d'estimer l'erreur de phase. Sur la base de la détection en phase et quadratique, le numériseur peut adapter les fenêtres d'échantillonnage de stylet subséquentes pour compenser l'erreur de phase détectée. Dans un autre exemple, le stylet peut transmettre un premier signal et un second signal qui est retardé de 90 degrés pendant une tranche de temps prédéterminée, et adapter les fenêtres d'échantillonnage de stylet sur le côté numériseur afin de compenser le retard de phase.
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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)