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1. (WO2019002833) MAGNETIC DETECTION OF REPLAY ATTACK
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Pub. No.: WO/2019/002833 International Application No.: PCT/GB2018/051765
Publication Date: 03.01.2019 International Filing Date: 25.06.2018
IPC:
G10L 17/10 (2013.01) ,G06F 21/32 (2013.01) ,H04L 9/32 (2006.01) ,H04W 12/00 (2009.01) ,G10L 25/03 (2013.01) ,G07C 9/00 (2006.01) ,H04R 29/00 (2006.01) ,G10L 21/0216 (2013.01) ,G10L 25/78 (2013.01)
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
17
Speaker identification or verification
06
Decision making techniques; Pattern matching strategies
10
Multimodal systems, i.e. based on the integration of multiple recognition engines or fusion of expert systems
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
21
Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
30
Authentication, i.e. establishing the identity or authorisation of security principals
31
User authentication
32
using biometric data, e.g. fingerprints, iris scans or voiceprints
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9
Arrangements for secret or secure communication
32
including means for verifying the identity or authority of a user of the system
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
W
WIRELESS COMMUNICATION NETWORKS
12
Security arrangements, e.g. access security or fraud detection; Authentication, e.g. verifying user identity or authorisation; Protecting privacy or anonymity
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
25
Speech or voice analysis techniques not restricted to a single one of groups G10L15/-G10L21/129
03
characterised by the type of extracted parameters
G PHYSICS
07
CHECKING-DEVICES
C
TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS, OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
9
Individual entry or exit registers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
29
Monitoring arrangements; Testing arrangements
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
21
Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
02
Speech enhancement, e.g. noise reduction or echo cancellation
0208
Noise filtering
0216
characterised by the method used for estimating noise
G PHYSICS
10
MUSICAL INSTRUMENTS; ACOUSTICS
L
SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
25
Speech or voice analysis techniques not restricted to a single one of groups G10L15/-G10L21/129
78
Detection of presence or absence of voice signals
Applicants:
CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LIMITED [GB/GB]; 7B Nightingale Way Quartermile Edinburgh Central Scotland EH3 9EG, GB
Inventors:
ALONSO, César; ES
LESSO, John Paul; GB
Agent:
HASELTINE LAKE LLP; Redcliff Quay 120 Redcliff Street Bristol BS1 6HU, GB
Priority Data:
62/526,03428.06.2017US
Title (EN) MAGNETIC DETECTION OF REPLAY ATTACK
(FR) DÉTECTION MAGNÉTIQUE D'ATTAQUE PAR REJEU
Abstract:
(EN) A method of detecting a replay attack on a voice biometrics system comprises: receiving an audio signal representing speech; detecting a magnetic field; determining if there is a correlation between the audio signal and the magnetic field; and if there is a correlation between the audio signal and the magnetic field, determining that the audio signal may result from a replay attack.
(FR) L'invention concerne un procédé de détection d'une attaque par rejeu sur un système de biométrie vocale, ce procédé comprenant les étapes consistant à : recevoir un signal audio représentant une parole ; détecter un champ magnétique ; déterminer s'il existe une corrélation entre le signal audio et le champ magnétique ; et s'il existe une corrélation entre le signal audio et le champ magnétique, déterminer que le signal audio peut résulter d'une attaque par rejeu.
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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)