EP 2567554 A1 20130313 - Determination and use of corrective filters for portable media playback devices
Title (en)
Determination and use of corrective filters for portable media playback devices
Title (de)
Bestimmung und Nutzung von Korrekturfiltern für tragbare Medienspieler
Title (fr)
Détermination et utilisation de filtres corretifs pour dispositifs portatifs de reproduction multimédia
Publication
Application
Priority
- US 33215910 P 20100506
- US 2011032332 W 20110413
Abstract (en)
[origin: WO2011139502A1] A method, an apparatus, a system, and logic encoded in a computer-readable storage medium to instruct a processing system to carry out the method. The method includes applying corrective filters directly in a portable media device to correct, e.g., equalize for the overall system comprising the portable media device and the playback system to which it is attached. Also a method of determining the corrective filters by playing back one or more calibration signals on the playback system while recording the resulting sound field on the portable media device.
IPC 8 full level
H04S 7/00 (2006.01)
CPC (source: EP)
H04S 7/301 (2013.01); H04S 7/308 (2013.01)
Citation (search report)
See references of WO 2011139502A1
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011139502 A1 20111110; CN 102893633 A 20130123; CN 102893633 B 20150415; EP 2567554 A1 20130313; EP 2567554 B1 20160323; EP 2986034 A1 20160217; EP 2986034 B1 20170531; ES 2632576 T3 20170914; HK 1221845 A1 20170609; JP 2013530420 A 20130725; JP 2015180954 A 20151015; JP 2017194703 A 20171026; JP 6377018 B2 20180822
DOCDB simple family (application)
US 2011032332 W 20110413; CN 201180022627 A 20110413; EP 11717394 A 20110413; EP 15178118 A 20110413; ES 15178118 T 20110413; HK 16109868 A 20160817; JP 2013509080 A 20110413; JP 2015106041 A 20150526; JP 2017122910 A 20170623