KR102210144B1 - 저 지연 변조 필터 뱅크 - Google Patents

저 지연 변조 필터 뱅크 Download PDF

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Publication number
KR102210144B1
KR102210144B1 KR1020207000976A KR20207000976A KR102210144B1 KR 102210144 B1 KR102210144 B1 KR 102210144B1 KR 1020207000976 A KR1020207000976 A KR 1020207000976A KR 20207000976 A KR20207000976 A KR 20207000976A KR 102210144 B1 KR102210144 B1 KR 102210144B1
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KR
South Korea
Prior art keywords
samples
valued
filter
complex
filter bank
Prior art date
Application number
KR1020207000976A
Other languages
English (en)
Korean (ko)
Other versions
KR20200007091A (ko
Inventor
퍼 에크스트란드
Original Assignee
돌비 인터네셔널 에이비
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 돌비 인터네셔널 에이비 filed Critical 돌비 인터네셔널 에이비
Priority to KR1020217002363A priority Critical patent/KR102292319B1/ko
Priority claimed from PCT/EP2010/051993 external-priority patent/WO2010094710A2/en
Publication of KR20200007091A publication Critical patent/KR20200007091A/ko
Application granted granted Critical
Publication of KR102210144B1 publication Critical patent/KR102210144B1/ko

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0266—Filter banks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0248—Filters characterised by a particular frequency response or filtering method
    • H03H17/0264—Filter sets with mutual related characteristics
    • H03H17/0272—Quadrature mirror filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H2240/00—Indexing scheme relating to filter banks

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
  • Optical Filters (AREA)
KR1020207000976A 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크 KR102210144B1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020217002363A KR102292319B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE0900217-1 2009-02-18
SE0900217 2009-02-18
US25710509P 2009-11-02 2009-11-02
US61/257,105 2009-11-02
PCT/EP2010/051993 WO2010094710A2 (en) 2009-02-18 2010-02-17 Low delay modulated filter bank

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
KR1020197023899A Division KR102068464B1 (ko) 2009-02-18 2010-02-17 고 주파수 재구성 또는 파라메트릭 스테레오를 위한 복소 지수 변조 필터 뱅크

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020217002363A Division KR102292319B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크

Publications (2)

Publication Number Publication Date
KR20200007091A KR20200007091A (ko) 2020-01-21
KR102210144B1 true KR102210144B1 (ko) 2021-02-01

Family

ID=67688670

Family Applications (4)

Application Number Title Priority Date Filing Date
KR1020217002363A KR102292319B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크
KR1020217025958A KR102412706B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크
KR1020207000976A KR102210144B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크
KR1020197023899A KR102068464B1 (ko) 2009-02-18 2010-02-17 고 주파수 재구성 또는 파라메트릭 스테레오를 위한 복소 지수 변조 필터 뱅크

Family Applications Before (2)

Application Number Title Priority Date Filing Date
KR1020217002363A KR102292319B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크
KR1020217025958A KR102412706B1 (ko) 2009-02-18 2010-02-17 저 지연 변조 필터 뱅크

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1020197023899A KR102068464B1 (ko) 2009-02-18 2010-02-17 고 주파수 재구성 또는 파라메트릭 스테레오를 위한 복소 지수 변조 필터 뱅크

Country Status (6)

Country Link
KR (4) KR102292319B1 (pt)
BR (6) BR122019022312B1 (pt)
ES (3) ES2758249T3 (pt)
HK (2) HK1243561A1 (pt)
HU (3) HUE045955T2 (pt)
TW (2) TWI788752B (pt)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW202329625A (zh) * 2021-11-30 2023-07-16 瑞典商都比國際公司 用於設計過取樣低延遲濾波組之方法及裝置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030233234A1 (en) 2002-06-17 2003-12-18 Truman Michael Mead Audio coding system using spectral hole filling

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE512719C2 (sv) * 1997-06-10 2000-05-02 Lars Gustaf Liljeryd En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
US6442581B1 (en) * 1999-09-21 2002-08-27 Creative Technologies Ltd. Lattice structure for IIR and FIR filters with automatic normalization
JP2001285073A (ja) * 2000-03-29 2001-10-12 Sony Corp 信号処理装置及び方法
SE0101175D0 (sv) * 2001-04-02 2001-04-02 Coding Technologies Sweden Ab Aliasing reduction using complex-exponential-modulated filterbanks
CA2354755A1 (en) * 2001-08-07 2003-02-07 Dspfactory Ltd. Sound intelligibilty enhancement using a psychoacoustic model and an oversampled filterbank
SE0202770D0 (sv) * 2002-09-18 2002-09-18 Coding Technologies Sweden Ab Method for reduction of aliasing introduces by spectral envelope adjustment in real-valued filterbanks

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030233234A1 (en) 2002-06-17 2003-12-18 Truman Michael Mead Audio coding system using spectral hole filling

Also Published As

Publication number Publication date
TWI716833B (zh) 2021-01-21
KR20210012054A (ko) 2021-02-02
HUE045955T2 (hu) 2020-01-28
KR102292319B1 (ko) 2021-08-24
BR122016027555B1 (pt) 2021-04-20
KR20200007091A (ko) 2020-01-21
KR102068464B1 (ko) 2020-01-22
BR122016027554B1 (pt) 2021-04-20
BR122019023520B1 (pt) 2021-04-27
TWI788752B (zh) 2023-01-01
HUE046532T2 (hu) 2020-03-30
TW201926893A (zh) 2019-07-01
BR122019022312B1 (pt) 2021-04-27
HK1243561A1 (zh) 2018-07-13
KR20210104931A (ko) 2021-08-25
BR122019023527B1 (pt) 2021-04-20
TW202119758A (zh) 2021-05-16
ES2758249T3 (es) 2020-05-04
KR20190099094A (ko) 2019-08-23
HUE046719T2 (hu) 2020-03-30
HK1244112A1 (zh) 2018-07-27
KR102412706B1 (ko) 2022-06-27
ES2748579T3 (es) 2020-03-17
BR122016027554A2 (pt) 2019-08-27
ES2751087T3 (es) 2020-03-30
BR122016027555A2 (pt) 2019-08-27
BR122020017733B1 (pt) 2021-01-26

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