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1. (WO2007004008) SYSTEM AND METHOD FOR ADJUSTING STEP DETECTION BASED ON MOTION INFORMATION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/004008 International Application No.: PCT/IB2006/001763
Publication Date: 11.01.2007 International Filing Date: 27.06.2006
IPC:
H04B 1/16 (2006.01) ,G01P 15/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
B
TRANSMISSION
1
Details of transmission systems, not covered by a single one of groups H04B3/-H04B13/123; Details of transmission systems not characterised by the medium used for transmission
06
Receivers
16
Circuits
G PHYSICS
01
MEASURING; TESTING
P
MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT 
15
Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
Applicants:
NOKIA CORPORATION [FI/FI]; Keilalahdentie 4 FIN-02150 ESPOO, FI (AllExceptUS)
NOKIA, INC. [US/US]; 6000 Connection Drive Irving, TX 75039, US (LC)
KAPPI, Jani [FI/FI]; FI (UsOnly)
Inventors:
KAPPI, Jani; FI
Agent:
ALBERT, Peter, G., Jr.; Foley & Lardner LLP 11250 El Camino Real Suite 200 San Diego, CA 92130, US
Priority Data:
11/173,01430.06.2005US
Title (EN) SYSTEM AND METHOD FOR ADJUSTING STEP DETECTION BASED ON MOTION INFORMATION
(FR) SYSTEME ET PROCEDE POUR AJUSTER UNE DETECTION DE PAS, EN FONCTION D'INFORMATIONS DE MOUVEMENT
Abstract:
(EN) A system and method for changing the weighting accelerometer filtering based upon motion sensor measurements. Using measurements from motion sensors, one or more features can be extracted. This information is used by an algorithm to assign a most appropriate test feature class to be the class of the state of motion at a particular moment in time. This information is used to provide more accurate positioning information, and can also be used to power down the motion sensor at various times, providing an improvement in battery efficiency.
(FR) L'invention concerne un système et un procédé pour modifier la pondération d'un filtrage accélérométrique, en fonction de mesures de capteurs de mouvement. Une ou plusieurs caractéristiques peuvent être extraites à l'aide des mesures des capteurs de mouvement. Ces informations sont utilisées par un algorithme pour attribuer une classe de caractéristiques d'essai convenant parfaitement à la classe d'état de mouvement à un moment spécifique dans le temps. Lesdites informations sont employées pour fournir des informations de position plus précises, et peuvent en outre être utilisées pour mettre le capteur de mouvement hors tension à différents moments, de façon à améliorer l'efficacité de la batterie.
front page image
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080023354EP1897229CN101213757EP2645064