Global Patent Index - EP 2028883 A2

EP 2028883 A2 2009-02-25 - Sound field generator and method of generating sound field using the same

Title (en)

Sound field generator and method of generating sound field using the same

Title (de)

Schallfeldgenerator und Verfahren zur Erzeugung eines Schallfeldes damit

Title (fr)

Générateur de champ sonore et procédé de génération de champ sonore utilisant celui-ci

Publication

EP 2028883 A2 (EN)

Application

EP 08104920 A

Priority

KR 2007084521 W

Abstract (en)

The invention relates to a sound field generator and a method of generating a sound field using the same. More particularly, the invention relates to a sound field generator and a method of generating the same, which can apply a filter in consideration of a masking effect in a time domain to a room impulse response, remove inaudible data depending on a frequency in a signal obtained by multiplying the room impulse response by an input signal in a frequency domain, and remove a signal block having a lower level than a level of a background noise block among output signal blocks to considerably reduce computational complexity required for performing a convolution, making it possible to generate an accurate sound field by minimizing sound quality distortion while implementing a real-time sound field generating system.

IPC 8 full level (invention and additional information)

H04S 7/00 (2006.01)

CPC (invention and additional information)

H04S 7/301 (2013.01); H04S 2420/07 (2013.01)

Designated contracting state (EPC)

DE FR GB

Designated extension state (EPC)

AL BA MK RS

EPO simple patent family

EP 2028883 A2 20090225; EP 2028883 A3 20121128

INPADOC legal status


2013-11-27 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20130529

2013-07-31 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): DE FR GB

2012-11-28 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

2012-11-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA MK RS

2012-11-28 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: H04S 7/00 20060101AFI20121022BHEP

2009-02-25 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20080730

2009-02-25 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

2009-02-25 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA MK RS