AU2001234603A1 - A multiplierless interpolator for a delta-sigma digital to analog converter - Google Patents

A multiplierless interpolator for a delta-sigma digital to analog converter

Info

Publication number
AU2001234603A1
AU2001234603A1 AU2001234603A AU3460301A AU2001234603A1 AU 2001234603 A1 AU2001234603 A1 AU 2001234603A1 AU 2001234603 A AU2001234603 A AU 2001234603A AU 3460301 A AU3460301 A AU 3460301A AU 2001234603 A1 AU2001234603 A1 AU 2001234603A1
Authority
AU
Australia
Prior art keywords
multiplierless
interpolator
delta
analog converter
sigma digital
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2001234603A
Inventor
Robert S. Green
Gerald Wilson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sonic Innovations Inc
Original Assignee
Sonic Innovations Inc
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 Sonic Innovations Inc filed Critical Sonic Innovations Inc
Publication of AU2001234603A1 publication Critical patent/AU2001234603A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0223—Computation saving measures; Accelerating measures
    • H03H17/0225—Measures concerning the multipliers
    • 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
    • H03H17/0277—Polyphase filters comprising recursive filters
    • H03H17/0279—Polyphase filters comprising recursive filters having two phases
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/0283—Filters characterised by the filter structure
    • H03H17/0285—Ladder or lattice 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
    • H03H17/04—Recursive filters
    • H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H17/02—Frequency selective networks
    • H03H17/04—Recursive filters
    • H03H17/0416—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing
    • H03H17/0427—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies
    • H03H17/0438—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer
    • H03H17/0444—Recursive filters with input-sampling frequency and output-delivery frequency which differ, e.g. extrapolation; Anti-aliasing characterized by the ratio between the input-sampling and output-delivery frequencies the ratio being integer where the output-delivery frequency is higher than the input sampling frequency, i.e. interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Analogue/Digital Conversion (AREA)
AU2001234603A 2000-01-26 2001-01-26 A multiplierless interpolator for a delta-sigma digital to analog converter Abandoned AU2001234603A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/491,695 US6313773B1 (en) 2000-01-26 2000-01-26 Multiplierless interpolator for a delta-sigma digital to analog converter
US09491695 2000-01-26
PCT/US2001/002744 WO2001056167A2 (en) 2000-01-26 2001-01-26 A multiplierless interpolator for a delta-sigma digital to analog converter

Publications (1)

Publication Number Publication Date
AU2001234603A1 true AU2001234603A1 (en) 2001-08-07

Family

ID=23953271

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001234603A Abandoned AU2001234603A1 (en) 2000-01-26 2001-01-26 A multiplierless interpolator for a delta-sigma digital to analog converter

Country Status (3)

Country Link
US (2) US6313773B1 (en)
AU (1) AU2001234603A1 (en)
WO (1) WO2001056167A2 (en)

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US7009543B2 (en) * 2004-01-16 2006-03-07 Cirrus Logic, Inc. Multiple non-monotonic quantizer regions for noise shaping
US7170434B2 (en) * 2004-01-16 2007-01-30 Cirrus Logic, Inc. Look-ahead delta sigma modulator with quantization using natural and pattern loop filter responses
US7084798B2 (en) * 2004-01-16 2006-08-01 Cirrus Logic, Inc. Look-ahead delta sigma modulators with quantizer input approximations
US7187312B2 (en) * 2004-01-16 2007-03-06 Cirrus Logic, Inc. Look-ahead delta sigma modulator having an infinite impulse response filter with multiple look-ahead outputs
US7196647B2 (en) * 2004-01-16 2007-03-27 Cirrus Logic, Inc. Signal processing with look-ahead modulator noise quantization minimization
US7138934B2 (en) * 2004-01-26 2006-11-21 Cirrus Logic, Inc. Pattern biasing for look-ahead delta sigma modulators
US7148830B2 (en) * 2004-01-26 2006-12-12 Cirrus Logic, Inc. Look-ahead delta sigma modulator with pruning of output candidate vectors using quantization error minimization pruning techniques
US7274403B2 (en) * 2004-01-30 2007-09-25 Broadcom Corporation Motion adaptive deinterlacer with integrated dynamic format change filter
US7081843B2 (en) * 2004-07-19 2006-07-25 Cirrus Logic, Inc. Overload protection for look-ahead delta sigma modulators
DE102005004371B4 (en) * 2005-01-31 2009-09-10 Infineon Technologies Ag Filter method and filter device with a plurality of filter branches
KR100924934B1 (en) * 2006-10-27 2009-11-09 삼성전자주식회사 Multiplierless interpolation technique for polar modulator
US8645441B2 (en) * 2007-08-01 2014-02-04 Pentomics, Inc. Desensitized filters
US7880654B2 (en) * 2009-02-27 2011-02-01 Freescale Semiconductor, Inc. Continuous-time sigma-delta modulator with multiple feedback paths having independent delays
US7852249B2 (en) * 2009-02-27 2010-12-14 Freescale Semiconductor, Inc. Sigma-delta modulator with digitally filtered delay compensation
CN102710237B (en) * 2012-06-15 2015-06-17 成都启臣微电子有限公司 First-order digital low-pass filtering method, filter and electronic equipment
CN109512395B (en) * 2018-12-17 2020-09-25 中国科学院深圳先进技术研究院 Method, device and equipment for analyzing and processing biological signals

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Also Published As

Publication number Publication date
US6313773B1 (en) 2001-11-06
WO2001056167A2 (en) 2001-08-02
US6392576B1 (en) 2002-05-21
WO2001056167A3 (en) 2002-03-14

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