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1. (WO2018127277) QUADRATURE OSCILLATOR
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Pub. No.: WO/2018/127277 International Application No.: PCT/EP2017/050117
Publication Date: 12.07.2018 International Filing Date: 04.01.2017
IPC:
H03B 5/12 (2006.01) ,H03B 27/00 (2006.01)
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
B
GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
5
Generation of oscillations using amplifier with regenerative feedback from output to input
08
with frequency-determining element comprising lumped inductance and capacitance
12
active element in amplifier being semiconductor device
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
B
GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
27
Generation of oscillations providing a plurality of outputs of the same frequency but differing in phase, other than merely two anti-phase outputs
Applicants:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) [SE/SE]; S-164 83 Stockholm, SE
Inventors:
OREDSSON, Filip; SE
MÅRTENSSON, Andreas; SE
MATTISSON, Sven; SE
Agent:
ERICSSON; Torshamnsgatan 21-23 164 80 Stockholm, SE
Priority Data:
Title (EN) QUADRATURE OSCILLATOR
(FR) OSCILLATEUR À QUADRATURE
Abstract:
(EN) An oscillator circuit (10) for generating quadrature-related first and second oscillation signals having equal frequencies comprises a first oscillation circuit (VCO_I) configured to generate the first oscillation signal having a first controllable frequency, a second oscillation circuit (VCO_Q) configured to generate the second oscillation signal having a second controllable frequency; and a controller (100) configured to enable and disable oscillation of the first and second oscillation circuits (VCO_I, VCO_Q) and to control the first and second controllable frequencies, such that when the oscillation is enabled, the first and second controllable frequencies are controlled to be initially unequal and then to become equal.
(FR) L’invention concerne un circuit oscillateur (10) pour la génération de premier et deuxième signaux d’oscillation associés en quadrature dont les fréquences sont égales qui comprend un premier circuit d’oscillation (VCO_I) servant à générer le premier signal d’oscillation ayant une première fréquence contrôlable, un deuxième circuit d’oscillation (VCO_Q) servant à générer le deuxième signal d’oscillation ayant une deuxième fréquence contrôlable ; et un contrôleur (100) servant à activer et désactiver l’oscillation des premier et deuxième circuits d’oscillation (VCO_I, VCO_Q) et à contrôler les première et deuxième fréquences contrôlables, de sorte que lorsque l’oscillation est activée, les première et deuxième fréquences contrôlables sont contrôlées de manière à être initialement inégales puis à devenir égales.
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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, 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)