WO2008121525A3 - Variable rate analog-to-digital converter - Google Patents

Variable rate analog-to-digital converter Download PDF

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Publication number
WO2008121525A3
WO2008121525A3 PCT/US2008/056723 US2008056723W WO2008121525A3 WO 2008121525 A3 WO2008121525 A3 WO 2008121525A3 US 2008056723 W US2008056723 W US 2008056723W WO 2008121525 A3 WO2008121525 A3 WO 2008121525A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
sampling
digital converter
undesirable
variable rate
Prior art date
Application number
PCT/US2008/056723
Other languages
French (fr)
Other versions
WO2008121525A2 (en
Inventor
Robert Townsend Short
Ghobad Heidari-Bateni
Layne Lisenbee
Original Assignee
Olympus Comm Technology Of Ame
Robert Townsend Short
Ghobad Heidari-Bateni
Layne Lisenbee
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 Olympus Comm Technology Of Ame, Robert Townsend Short, Ghobad Heidari-Bateni, Layne Lisenbee filed Critical Olympus Comm Technology Of Ame
Publication of WO2008121525A2 publication Critical patent/WO2008121525A2/en
Publication of WO2008121525A3 publication Critical patent/WO2008121525A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/002—Provisions or arrangements for saving power, e.g. by allowing a sleep mode, using lower supply voltage for downstream stages, using multiple clock domains or by selectively turning on stages when needed
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters
    • H03M1/1245—Details of sampling arrangements or methods
    • H03M1/126—Multi-rate systems, i.e. adaptive to different fixed sampling rates
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters

Abstract

According to various embodiments of the invention a variable rate analog-to-digital converter can be used in conjunction with an anti-aliasing filter to allow the use of lower sampling rates, and accordingly, generally lower power consumption. For example, a lower sampling rate can be used when it is determined that no undesirable signals are present and a higher sampling period can be used when an undesirable signal is present. Determining the presence of an undesired signal can be based on signal-to-noise ratio, over- sampling, bit error rate, using a detector, etc. An undesirable signal can be any signal that is close in frequency to a signal of interest or signals farther away in frequency that has a relatively high amplitude. Sampling rate can be varied in a binary fashion, stepwise, continuously, etc.
PCT/US2008/056723 2007-03-28 2008-03-12 Variable rate analog-to-digital converter WO2008121525A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/692,767 US7492293B2 (en) 2007-03-28 2007-03-28 Variable rate analog-to-digital converter
US11/692,767 2007-03-28

Publications (2)

Publication Number Publication Date
WO2008121525A2 WO2008121525A2 (en) 2008-10-09
WO2008121525A3 true WO2008121525A3 (en) 2009-01-08

Family

ID=39793346

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/056723 WO2008121525A2 (en) 2007-03-28 2008-03-12 Variable rate analog-to-digital converter

Country Status (2)

Country Link
US (1) US7492293B2 (en)
WO (1) WO2008121525A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7429129B2 (en) * 2005-02-28 2008-09-30 Standard Microsystems Corporation Proportional settling time adjustment for diode voltage and temperature measurements dependent on forced level current
US8145943B2 (en) * 2009-05-11 2012-03-27 Empire Technology Development Llc State variable-based detection and correction of errors
US8817917B2 (en) * 2011-06-21 2014-08-26 Ibiquity Digital Corporation Method and apparatus for implementing signal quality metrics and antenna diversity switching control
KR101289618B1 (en) * 2011-08-22 2013-07-24 연세대학교 산학협력단 An ultrawideband radar
US8630764B2 (en) * 2011-12-02 2014-01-14 Continential Automotive Systems, Inc. System operation for telematics systems that use a battery
US9049491B2 (en) * 2012-08-30 2015-06-02 Maxlinear, Inc. Method and system for power management in a frequency division multiplexed network
US9626335B2 (en) * 2013-01-17 2017-04-18 Honeywell International Inc. Field device including a software configurable analog to digital converter system
DK3014229T3 (en) * 2013-06-28 2018-10-22 Pr Electronics As System and method for recording wire breakage
CN107078750B (en) * 2014-10-31 2019-03-19 瑞典爱立信有限公司 The method and computer program of invasion signal in radio receiver, detection radio receiver
US10680640B2 (en) 2016-12-21 2020-06-09 Cirrus Logic, Inc. Power-saving current-mode digital-to-analog converter (DAC)
US11486980B2 (en) * 2019-09-04 2022-11-01 Lumentum Operations Llc Lidar receiver with dual analog-to-digital converters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005506A (en) * 1997-12-09 1999-12-21 Qualcomm, Incorporated Receiver with sigma-delta analog-to-digital converter for sampling a received signal
US6392584B1 (en) * 2000-01-04 2002-05-21 Richard Eklund System and method for detecting and warning of potential failure of rotating and vibrating machines
US20050123036A1 (en) * 2003-12-08 2005-06-09 Mahibur Rahman Method and apparatus for controlling the bandwidth frequency of an analog filter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5619202A (en) * 1994-11-22 1997-04-08 Analog Devices, Inc. Variable sample rate ADC
US5872540A (en) * 1997-06-26 1999-02-16 Electro-Radiation Incorporated Digital interference suppression system for radio frequency interference cancellation
US6295508B1 (en) * 1999-09-01 2001-09-25 Perkinelmer Instruments, Inc. Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system and method
US6507799B2 (en) 2001-02-26 2003-01-14 Honeywell International Inc. Method and apparatus for reducing microprocessor speed requirements in data acquisition applications
US20060218410A1 (en) * 2005-02-15 2006-09-28 Arnaud Robert Method and system to announce or prevent voyeur recording in a monitored environment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6005506A (en) * 1997-12-09 1999-12-21 Qualcomm, Incorporated Receiver with sigma-delta analog-to-digital converter for sampling a received signal
US6392584B1 (en) * 2000-01-04 2002-05-21 Richard Eklund System and method for detecting and warning of potential failure of rotating and vibrating machines
US20050123036A1 (en) * 2003-12-08 2005-06-09 Mahibur Rahman Method and apparatus for controlling the bandwidth frequency of an analog filter

Also Published As

Publication number Publication date
US7492293B2 (en) 2009-02-17
WO2008121525A2 (en) 2008-10-09
US20080238717A1 (en) 2008-10-02

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