UA91890C2 - Effective filtering using complex modulated filter bank - Google Patents

Effective filtering using complex modulated filter bank

Info

Publication number
UA91890C2
UA91890C2 UAA200809753A UAA200809753A UA91890C2 UA 91890 C2 UA91890 C2 UA 91890C2 UA A200809753 A UAA200809753 A UA A200809753A UA A200809753 A UAA200809753 A UA A200809753A UA 91890 C2 UA91890 C2 UA 91890C2
Authority
UA
Ukraine
Prior art keywords
time domain
intermediate filters
filter
filter bank
characteristic
Prior art date
Application number
UAA200809753A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Ларс ВИЛЛЕМОЕС
Original Assignee
Кодинг Текнолоджис Аб
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.)
Filing date
Publication date
Application filed by Кодинг Текнолоджис Аб filed Critical Кодинг Текнолоджис Аб
Publication of UA91890C2 publication Critical patent/UA91890C2/en

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Abstract

A filter apparatus for filtering a time domain input signal to obtain a time domain output signal, which is a representation of the time domain input signal filtered using a filter characteristic having an non-uniform amplitude/frequency characteristic, i comprises a complex analysis filter bank (101) for generating a plurality of complex subband signals from the time domain input signals, a plurality of intermediate filters, wherein at least one of the intermediate filters (102) of the plurality of the intermediate filters has a non-uniform amplitude/frequency characteristic, wherein the plurality of intermediate filters have a shorter impulse response compared to an impulse response of a filter having the filter characteristic, and wherein the non-uniform amplitude/frequency characteristics of the plurality of intermediate filters together represent the пoп-uniform filter characteristic, and a complex synthesis filter bank (103) for synthesizing the output of the intermediate filters to obtain the time domain output signal.
UAA200809753A 2006-01-27 2006-09-01 Effective filtering using complex modulated filter bank UA91890C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76259206P 2006-01-27 2006-01-27

Publications (1)

Publication Number Publication Date
UA91890C2 true UA91890C2 (en) 2010-09-10

Family

ID=50734544

Family Applications (1)

Application Number Title Priority Date Filing Date
UAA200809753A UA91890C2 (en) 2006-01-27 2006-09-01 Effective filtering using complex modulated filter bank

Country Status (1)

Country Link
UA (1) UA91890C2 (en)

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