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1. (WO2010075647) METHODS AND APPARATUS FOR OBTAINING GNSS TIME IN A GNSS RECEIVER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2010/075647 International Application No.: PCT/CN2008/073848
Publication Date: 08.07.2010 International Filing Date: 30.12.2008
IPC:
G01S 1/02 (2010.01)
G PHYSICS
01
MEASURING; TESTING
S
RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
1
Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
02
using radio waves
Applicants:
MEDIATEK INC. [CN/CN]; No. 1 Dusing Road 1, Science-Based Industrial Park Hsin-chu, Taiwan 300, CN (AllExceptUS)
HUANG, Kung shuan [CN/CN]; CN (UsOnly)
LIU, Hsien chang [CN/CN]; CN (UsOnly)
CHEN, An bang [CN/CN]; CN (UsOnly)
Inventors:
HUANG, Kung shuan; CN
LIU, Hsien chang; CN
CHEN, An bang; CN
Agent:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD.; 16th Fl., Block A, Corporate Square No.35 Jinrong Street Beijing 100140, CN
Priority Data:
Title (EN) METHODS AND APPARATUS FOR OBTAINING GNSS TIME IN A GNSS RECEIVER
(FR) PROCÉDÉS ET APPAREIL POUR OBTENIR UN TEMPS GNSS DANS UN RÉCEPTEUR GNSS
Abstract:
(EN) A method for obtaining GNSS time in a GNSS receiver includes: obtaining a time relationship between a first clock signal and the received GNSS time; obtaining a clock value B1 of a second clock signal and further obtaining an associated clock value A1 of the first clock signal to obtain a first pulse 5 relationship at a first time point; calculating a GNSS time C1 corresponding to the clock value A1 according to the time relationship; obtaining a clock value B2 of the second clock signal and further obtaining an associated clock value A2 of the first clock signal to obtain a second pulse relationship at a second time point; and calculating a GNSS time C2 according to the GNSS time C1, the clock value B1, 10 and the clock value B2. Exemplary values of A1, B1, C1, A2, B2, and C2 can be TTick1, FN1, TOW1, TTick2, FN2, and TOW2, respectively.
(FR) L'invention concerne un procédé pour obtenir un temps GNSS dans un récepteur GNSS, comprenant : l'obtention d'une relation temporelle entre un premier signal d'horloge et le temps GNSS reçu; l'obtention d'une valeur d'horloge B1 d'un second signal d'horloge puis l'obtention d'une valeur d'horloge A1 associée du premier signal d'horloge pour obtenir une première relation d'impulsion à un premier moment temporel; le calcul d'un temps GNSS C1 correspondant à la valeur d'horloge A1 en fonction de la relation temporelle; l'obtention d'une valeur d'horloge B2 du second signal d'horloge puis l'obtention d'une valeur d'horloge A2 associée du premier signal d'horloge pour obtenir une seconde relation d'impulsion à un second moment temporel; et le calcul d'un temps GNSS C2 en fonction du temps GNSS C1, de la valeur d'horloge B1 et de la valeur d'horloge B2. Des valeurs de A1, B1, C1, A2, B2 et C2 peuvent être respectivement, par exemple, TTick1, FN1, TOW1, TTick2, FN2 et TOW2.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, 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, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, 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, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, 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:
JP2011520110EP2370830US20110050495CN101855842