AU2001273460A1 - Adaptive sigma-delta modulation with improved dynamic range - Google Patents

Adaptive sigma-delta modulation with improved dynamic range

Info

Publication number
AU2001273460A1
AU2001273460A1 AU2001273460A AU7346001A AU2001273460A1 AU 2001273460 A1 AU2001273460 A1 AU 2001273460A1 AU 2001273460 A AU2001273460 A AU 2001273460A AU 7346001 A AU7346001 A AU 7346001A AU 2001273460 A1 AU2001273460 A1 AU 2001273460A1
Authority
AU
Australia
Prior art keywords
dynamic range
delta modulation
improved dynamic
adaptive sigma
sigma
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
AU2001273460A
Inventor
Mansour A. Aldajani
Ali H. Sayed
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.)
University of California
Original Assignee
University of California
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 University of California filed Critical University of California
Publication of AU2001273460A1 publication Critical patent/AU2001273460A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/4917—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes
    • H04L25/4927—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems using multilevel codes using levels matched to the quantisation levels of the channel
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M3/00—Conversion of analogue values to or from differential modulation
    • H03M3/30—Delta-sigma modulation
    • H03M3/458—Analogue/digital converters using delta-sigma modulation as an intermediate step
    • H03M3/478—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication
    • H03M3/48—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting
    • H03M3/482—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting by adapting the quantisation step size
    • H03M3/484—Means for controlling the correspondence between the range of the input signal and the range of signals the converter can handle; Means for out-of-range indication characterised by the type of range control, e.g. limiting by adapting the quantisation step size by adapting the gain of the feedback signal, e.g. by adapting the reference values of the digital/analogue converter in the feedback path

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
AU2001273460A 2000-07-13 2001-07-13 Adaptive sigma-delta modulation with improved dynamic range Abandoned AU2001273460A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21810300P 2000-07-13 2000-07-13
US60/218,103 2000-07-13
PCT/US2001/022193 WO2002009292A2 (en) 2000-07-13 2001-07-13 Adaptive sigma-delta modulation with improved dynamic range

Publications (1)

Publication Number Publication Date
AU2001273460A1 true AU2001273460A1 (en) 2002-02-05

Family

ID=22813757

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001273460A Abandoned AU2001273460A1 (en) 2000-07-13 2001-07-13 Adaptive sigma-delta modulation with improved dynamic range

Country Status (3)

Country Link
US (1) US7073113B2 (en)
AU (1) AU2001273460A1 (en)
WO (1) WO2002009292A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6885326B2 (en) 1999-02-04 2005-04-26 Med-El Elektromedizinische Geraeta Gmbh Accumulator for adaptive Σ-Δ modulation
CA2476967C (en) 2002-03-28 2011-10-11 Clemens M. Zierhofer A system and method for adaptive sigma-delta modulation
EP1394950B1 (en) * 2002-08-29 2006-08-02 Infineon Technologies AG Quantiser for a sigma-delta modulator and sigma-delta modulator
US6980139B2 (en) 2002-08-29 2005-12-27 Infineon Technologies Ag Sigma-delta-modulator
AU2003274509B2 (en) * 2003-09-26 2008-12-18 Med-El Elektromedizinische Geraete Gmbh Accumulator for adaptive sigma-delta modulation
GB0414420D0 (en) * 2004-06-28 2004-07-28 Cambridge Silicon Radio Ltd Speech activity detection
US7268715B2 (en) 2004-10-29 2007-09-11 Freescale Semiconductor, Inc. Gain control in a signal path with sigma-delta analog-to-digital conversion
KR100715193B1 (en) * 2005-05-16 2007-05-07 주식회사 케이티프리텔 Digital complex modulation apparatus and method thereof
US11373678B2 (en) 2020-09-17 2022-06-28 Western Digital Technologies, Inc. Data storage device using windowed delta-sigma analog-to-digital converter in digital current control loop

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5331111A (en) * 1992-10-27 1994-07-19 Korg, Inc. Sound model generator and synthesizer with graphical programming engine
JP2797877B2 (en) * 1993-01-22 1998-09-17 ニチデン機械株式会社 Strip conveyor
CA2213156A1 (en) * 1997-08-15 1999-02-15 Philsar Electronics Inc. One bit digital quadrature vector modulator

Also Published As

Publication number Publication date
US20040128606A1 (en) 2004-07-01
WO2002009292A3 (en) 2003-09-12
US7073113B2 (en) 2006-07-04
WO2002009292A2 (en) 2002-01-31

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