WIPO logo
Mobile | Deutsch | Español | Français | 日本語 | 한국어 | Português | Русский | 中文 | العربية |
PATENTSCOPE

Search International and National Patent Collections
World Intellectual Property Organization
Search
 
Browse
 
Translate
 
Options
 
News
 
Login
 
Help
 
Machine translation
1. (WO2014179489) ADAPTIVE FEEDBACK CANCELLATION COEFFICIENTS BASED ON VOLTAGE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2014/179489    International Application No.:    PCT/US2014/036232
Publication Date: 06.11.2014 International Filing Date: 30.04.2014
IPC:
H04R 25/00 (2006.01)
Applicants: STARKEY LABORATORIES, INC. [US/US]; 6600 Washington Ave. So. Eden Prairie, MN 55344 (US)
Inventors: YANG, Jingbo; (US)
Agent: BIANCHI, Timothy, E.; P.O. Box 2938 Minneapolis, MN 55402 (US)
Priority Data:
61/818,380 01.05.2013 US
Title (EN) ADAPTIVE FEEDBACK CANCELLATION COEFFICIENTS BASED ON VOLTAGE
(FR) COEFFICIENTS D'ANNULATION DE RETOUR ADAPTATIVE BASÉS SUR LA TENSION
Abstract: front page image
(EN)In a hearing aid that employs a feedback cancellation (FBC) algorithm, the feedback cancellation may be adversely affected when the FBC coefficients are initialized at one battery voltage and battery voltage subsequently changes as the battery discharges due to the change in the gain of the acoustic feedback path. Described are techniques for to deal with this situation by measuring the battery voltage and applying different offsets to the FBC coefficients as the battery voltage changes.
(FR)Dans une prothèse auditive qui utilise un algorithme d'annulation de retour (FBC), l'annulation de retour peut être négativement affectée lorsque les coefficients FBC sont initialisés à une tension de batterie et que la tension de batterie change ultérieurement alors que la batterie se décharge en conséquence du changement dans le gain du chemin de retour acoustique. La présente invention concerne des techniques permettant de gérer cette situation en mesurant la tension de batterie et en appliquant différents décalages aux coefficients FBC alors que la tension de batterie change.
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, 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, 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, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)