US RE50,009 E1
Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
Markus Schnell, Erlangen (DE); Manfred Lutzky, Nuremberg (DE); Markus Lohwasser, Hersbruck (DE); Markus Schmidt, Erlangen (DE); Marc Gayer, Erlangen (DE); Michael Mellar, Ludwigshafen (DE); Bernd Edler, Hannover (DE); Markus Multrus, Nuremberg (DE); Gerald Schuller, Erfurt (DE); Ralf Geiger, Ilmenau (DE); and Bernhard Grill, Lauf (DE)
Assigned to Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (DE)
Appl. No. 17/845,375
Filed by Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Munich (DE)
PCT Filed Oct. 23, 2007, PCT No. PCT/EP2007/009200
§ 371(c)(1), (2), (4) Date Aug. 31, 2009,
PCT Pub. No. WO2008/049590, PCT Pub. Date May 2, 2008.
Application 17/845,375 is a reissue of application No. 12/293,532, filed on Oct. 23, 2007, granted, now 8,438,015, issued on May 7, 2013.
Claims priority of provisional application 60/862,854, filed on Oct. 25, 2006.
This patent is subject to a terminal disclaimer.
Int. Cl. G10L 19/00 (2013.01); G10L 19/02 (2013.01); G10L 19/022 (2013.01); G10L 25/45 (2013.01); H03H 17/02 (2006.01); G10L 21/038 (2013.01)
CPC G10L 19/0204 (2013.01) [G10L 19/022 (2013.01); G10L 25/45 (2013.01); H03H 17/0266 (2013.01); G10L 21/038 (2013.01)] 7 Claims
OG exemplary drawing
 
[ 25. An apparatus for generating audio subband values in audio subband channels, comprising:
an analysis windower for windowing a frame of time-domain audio input samples being in a time sequence extending from an early sample to a later sample using an analysis window function comprising a sequence of window coefficients to acquire windowed samples, the analysis window function comprising a first number of window coefficients derived from a larger window function comprising a sequence of a larger second number of window coefficients,
wherein the window coefficients of the window function are derived by an interpolation of window coefficients of the larger window function; and
wherein the second number is an even number; and
a calculator for calculating the audio subband values using the windowed samples,
wherein the apparatus is adapted to interpolate the window coefficients of the larger window function to acquire the window coefficients of the window function. ]