WO2002097986A3 - Reconfigurable digital filter having multiple filtering modes - Google Patents

Reconfigurable digital filter having multiple filtering modes Download PDF

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Publication number
WO2002097986A3
WO2002097986A3 PCT/IB2002/001892 IB0201892W WO02097986A3 WO 2002097986 A3 WO2002097986 A3 WO 2002097986A3 IB 0201892 W IB0201892 W IB 0201892W WO 02097986 A3 WO02097986 A3 WO 02097986A3
Authority
WO
WIPO (PCT)
Prior art keywords
filtering
digital filter
circuitry
mode selection
filtering modes
Prior art date
Application number
PCT/IB2002/001892
Other languages
French (fr)
Other versions
WO2002097986A2 (en
Inventor
Santanu Dutta
David Molter
Original Assignee
Koninkl Philips Electronics Nv
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 Koninkl Philips Electronics Nv filed Critical Koninkl Philips Electronics Nv
Priority to EP02733051A priority Critical patent/EP1400016B1/en
Priority to JP2003501062A priority patent/JP4307987B2/en
Priority to AT02733051T priority patent/ATE517466T1/en
Priority to KR1020037001411A priority patent/KR100901073B1/en
Publication of WO2002097986A2 publication Critical patent/WO2002097986A2/en
Publication of WO2002097986A3 publication Critical patent/WO2002097986A3/en

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • 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
    • H03H17/0273—Polyphase filters
    • H03H17/0275—Polyphase filters comprising non-recursive filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0294—Variable filters; Programmable filters

Abstract

A hardware-configurable digital filter (100) is adaptable for providing multiple filtering modes. In one embodiment, the digital filter includes a register-based array (112) of logic circuitry, computational circuitry (114) and mode selection circuitry (110). By reconfiguring data flow within the logic circuitry and the computational circuitry, the mode selection circuitry switches the digital filter between different ones of the multiple filtering modes. Each of the multiplication and addition logic circuits has outputs and inputs selectably coupled to the other of the multiplication and addition logic circuits along a Y direction, with the selectivity being responsive to the mode selection circuitry for arranging the registers as being functionally linear or functionally nonlinear. In a more specific embodiment the filtering modes include polyphase filtering and general purpose filtering applications (such as FIR filtering), and in another more specific embodiment the filtering modes include polyphase direct filtering, polyphase transposed filtering, and at least one general purpose filtering. A specific example application of the above type of digital filter is directed to filtering video pixel components, for example, in resizing a horizontal line of pixels.
PCT/IB2002/001892 2001-05-31 2002-05-28 Reconfigurable digital filter having multiple filtering modes WO2002097986A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02733051A EP1400016B1 (en) 2001-05-31 2002-05-28 Reconfigurable digital filter having multiple filtering modes
JP2003501062A JP4307987B2 (en) 2001-05-31 2002-05-28 Reconfigurable digital filter with multiple filtering modes
AT02733051T ATE517466T1 (en) 2001-05-31 2002-05-28 RECONFIGURABLE DIGITAL FILTER WITH MULTIPLE FILTER MODES
KR1020037001411A KR100901073B1 (en) 2001-05-31 2002-05-28 Reconfigurable digital filter having multiple filtering modes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/871,198 US6963890B2 (en) 2001-05-31 2001-05-31 Reconfigurable digital filter having multiple filtering modes
US09/871,198 2001-05-31

Publications (2)

Publication Number Publication Date
WO2002097986A2 WO2002097986A2 (en) 2002-12-05
WO2002097986A3 true WO2002097986A3 (en) 2003-04-10

Family

ID=25356924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2002/001892 WO2002097986A2 (en) 2001-05-31 2002-05-28 Reconfigurable digital filter having multiple filtering modes

Country Status (8)

Country Link
US (1) US6963890B2 (en)
EP (1) EP1400016B1 (en)
JP (1) JP4307987B2 (en)
KR (1) KR100901073B1 (en)
CN (1) CN100559713C (en)
AT (1) ATE517466T1 (en)
TW (1) TWI228664B (en)
WO (1) WO2002097986A2 (en)

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Also Published As

Publication number Publication date
ATE517466T1 (en) 2011-08-15
CN1463490A (en) 2003-12-24
US20020184275A1 (en) 2002-12-05
JP2004534446A (en) 2004-11-11
US6963890B2 (en) 2005-11-08
JP4307987B2 (en) 2009-08-05
EP1400016A2 (en) 2004-03-24
EP1400016B1 (en) 2011-07-20
KR20030045017A (en) 2003-06-09
KR100901073B1 (en) 2009-06-03
TWI228664B (en) 2005-03-01
WO2002097986A2 (en) 2002-12-05
CN100559713C (en) 2009-11-11

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