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1. (WO2018080750) SELF-CORRECTION TECHNIQUES FOR CRYSTAL OSCILLATOR
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Pub. No.: WO/2018/080750 International Application No.: PCT/US2017/055240
Publication Date: 03.05.2018 International Filing Date: 05.10.2017
IPC:
H03J 7/04 (2006.01) ,H03L 1/02 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
J
TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
7
Automatic frequency control; Automatic scanning over a band of frequencies
02
Automatic frequency control
04
where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
L
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
1
Stabilisation of generator output against variations of physical values, e.g. power supply
02
against variations of temperature only
Applicants:
QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
MAHESHWARI, Ankit; US
KUMAR, Akash; US
PATEL, Rimal; US
Agent:
CLARK, T.J.; US
Priority Data:
15/335,33326.10.2016US
Title (EN) SELF-CORRECTION TECHNIQUES FOR CRYSTAL OSCILLATOR
(FR) TECHNIQUES D'AUTO-CORRECTION POUR OSCILLATEUR À QUARTZ
Abstract:
(EN) Techniques for calibrating a crystal oscillator of a wireless device are provided. A method according to these techniques includes operating a transmit path of the wireless device at a first carrier frequency, configuring a receive path of the wireless device to receive at a second carrier frequency, the second carrier frequency being offset from the first carrier frequency by a first frequency offset, transmitting a tone using the transmit path at a frequency that is offset from the first carrier frequency by a second frequency offset that is different than the first frequency offset, receiving a second tone via the receive path, and determining the oscillator error based on the second tone.
(FR) L'invention concerne des techniques d'étalonnage d'un oscillateur à quartz d'un dispositif sans fil. Un procédé selon ces techniques consiste à faire fonctionner un trajet de transmission du dispositif sans fil à une première fréquence porteuse, à configurer un trajet de réception du dispositif sans fil pour recevoir à une seconde fréquence porteuse, la seconde fréquence porteuse étant décalée de la première fréquence porteuse par un premier décalage de fréquence, à transmettre une tonalité à l'aide du trajet de transmission à une fréquence qui est décalée de la première fréquence porteuse par un second décalage de fréquence qui est différent du premier décalage de fréquence, à recevoir une seconde tonalité par l'intermédiaire du trajet de réception, et à déterminer l'erreur d'oscillateur sur la base de la seconde tonalité.
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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)