EP 2401856 A1 20120104 - METHOD FOR EQUALIZING AUDIO SIGNALS IN FIXED AND MOBILE TELEPHONY
Title (en)
METHOD FOR EQUALIZING AUDIO SIGNALS IN FIXED AND MOBILE TELEPHONY
Title (de)
VERFAHREN ZUM ENTZERREN VON AUDIOSIGNALEN BEI DER FEST- UND MOBILTELEFONIE
Title (fr)
PROCÉDÉ D'ÉGALISATION DE SIGNAUX AUDIO EN TÉLÉPHONIE FIXE ET MOBILE
Publication
Application
Priority
- IT 2010000077 W 20100224
- IT RM20090089 A 20090226
Abstract (en)
[origin: WO2010097829A1] In relation to the spectrum of the original signal transmitted by the calling telephone, the voice signal on a telephone channel, received by the receiving telephone, is subjected to a processing procedure which evaluates the composition of the frequency spectrum of the received signal and subjects it to an equalization process comprising the determination of the selective attenuation of some frequencies and the selective amplification of others, on the basis of the deformations/distortions of the signal by the transmission channel. The embodiment allows adjusting and filtering the dynamically amplified frequencies in real time, through a dedicated menu on the cell phone display. A simultaneous conversion of the speech into text is provided for greater comprehensibility.
IPC 8 full level
H04M 1/60 (2006.01); H04M 1/247 (2006.01)
CPC (source: EP)
H04M 1/2475 (2013.01); H04M 1/60 (2013.01)
Citation (search report)
See references of WO 2010097829A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010097829 A1 20100902; EP 2401856 A1 20120104; IT 1396715 B1 20121214; IT RM20090089 A1 20100827
DOCDB simple family (application)
IT 2010000077 W 20100224; EP 10711756 A 20100224; IT RM20090089 A 20090226