Patents-Review.com
ClassID:

220980 ⎘

H03H17/0272 - CPC Classification

Classification description:

Networks using digital techniques; Frequency selective networks; Filters characterised by a particular frequency response or filtering method; Filter sets with mutual related characteristics Quadrature mirror filters

Recent Application in this class:
#1
20250046324
2025-02-06

RESAMPLING OUTPUT SIGNALS OF QMF BASED AUDIO CODEC

 #2
20240087583
2024-03-14

System and method for processing audio data into a plurality of frequency components

 #3
20240046942
2024-02-08

Resampling output signals of QMF based audio codecs

 #4
20230162747
2023-05-25

System and method for processing audio data into a plurality of frequency components

 #5
20220262383
2022-08-18

Resampling output signals of QMF based audio codec

 #6
20220262382
2022-08-18

Resampling output signals of QMF based audio codec

 #7
20220262381
2022-08-18

Resampling output signals of QMF based audio codec

 #8
20220262380
2022-08-18

Resampling output signals of QMF based audio codec

 #9
20220223164
2022-07-14

System and method for processing audio data into a plurality of frequency components

 #10
20210337335
2021-10-28

Method and apparatus for processing multimedia signals

 #11
20210174816
2021-06-10

Resampling output signals of QMF based audio codecs

 #12
20210166710
2021-06-03

Resampling output signals of QMF based audio codecs

 #13
20210166709
2021-06-03

Resampling output signals of QMF based audio codecs

 #14
20210090585
2021-03-25

System and method for processing audio data

 #15
20200021936
2020-01-16

Method and apparatus for processing multimedia signals

 #16
20190279653
2019-09-12

System and method for processing audio data

 #17
20190259405
2019-08-22

Resampling output signals of QMF based audio codecs

 #18
20180278962
2018-09-27

System and method for processing audio data

 #19
20180278666
2018-09-27

System and method for processing audio data

 #20
20180278241
2018-09-27

System and method for processing audio data

 #21
20180277130
2018-09-27

System and method for processing audio data

 #22
20180227692
2018-08-09

Method and device for audio signal processing

 #23
20170148462
2017-05-25

Resampling output signals of QMF based audio codecs

 #24
20160249149
2016-08-25

Method and apparatus for processing audio signals

 #25
20160234620
2016-08-11

Method and device for audio signal processing

 #26
20160219388
2016-07-28

Method and apparatus for processing multimedia signals

 #27
20150120306
2015-04-30

Method and apparatus for quadrature mirror filtering

 #28
20140297706
2014-10-02

Orthogonal transform apparatus, orthogonal transform method, orthogonal transform computer program, and audio decoding apparatus

 #29
20130151262
2013-06-13

Resampling output signals of QMF based audio codecs

 #30
20100262427
2010-10-14

Low complexity spectral band replication (SBR) filterbanks

 #31
20100146026
2010-06-10

Sub-band signal processing

 #32
20100017195
2010-01-21

Filter compressor and method for manufacturing compressed subband filter impulse responses

 #33
20080034161
2008-02-07

Sample rate converter and method to perform sample rate conversion

 #34
19028818
2025-07-29

Matrix decomposition structure of two-channel quadrature mirror filter bank and coefficient design method thereof