AU2001274254A1 - Method and apparatus of producing a digital depiction of a signal - Google Patents

Method and apparatus of producing a digital depiction of a signal

Info

Publication number
AU2001274254A1
AU2001274254A1 AU2001274254A AU7425401A AU2001274254A1 AU 2001274254 A1 AU2001274254 A1 AU 2001274254A1 AU 2001274254 A AU2001274254 A AU 2001274254A AU 7425401 A AU7425401 A AU 7425401A AU 2001274254 A1 AU2001274254 A1 AU 2001274254A1
Authority
AU
Australia
Prior art keywords
signal
digital
digital depiction
transformation means
depiction
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
AU2001274254A
Inventor
Selina Anderson Ballantyne
Adrian Sean Coffey
Martin Johnson
Robin Jones
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.)
Qinetiq Ltd
Original Assignee
Qinetiq Ltd
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 Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of AU2001274254A1 publication Critical patent/AU2001274254A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • 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

Abstract

An apparatus for producing a digital depiction of a signal (10) which is adaptive to the signal itself. A constant rate sampling means, such as an analogue to digital converter (2), samples the signal (10) at a constant rate and produces a first digital depiction (12) of a signal. A transformation means (14) is responsive to the first digital depiction (12) and produces a second digital depiction based on the evolution of the signal. The transformation means may be capable of determining when a predetermined threshold level has been crossed and measuring the time interval between predetermined threshold level crossings. The transformation means (14) may include a logic arrangement and a timer counter and is run from a clock signal (16) from the same clock (6) as drives the sampling means. A method of adapting a conventional ADC (2) to adaptively sample the signal (10) by adding a transformation means (14) run off the same clock (6) as the ADC (2) is also provided.
AU2001274254A 2000-06-21 2001-06-20 Method and apparatus of producing a digital depiction of a signal Abandoned AU2001274254A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB0015148.0A GB0015148D0 (en) 2000-06-21 2000-06-21 Method and apparatus for producing a digital depiction of a signal
GB0015148 2000-06-21
PCT/GB2001/002691 WO2001099286A1 (en) 2000-06-21 2001-06-20 Method and apparatus of producing a digital depiction of a signal

Publications (1)

Publication Number Publication Date
AU2001274254A1 true AU2001274254A1 (en) 2002-01-02

Family

ID=9894074

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001274254A Abandoned AU2001274254A1 (en) 2000-06-21 2001-06-20 Method and apparatus of producing a digital depiction of a signal

Country Status (11)

Country Link
US (1) US6803868B2 (en)
EP (1) EP1295399B1 (en)
JP (1) JP2003536344A (en)
KR (1) KR100787789B1 (en)
CN (1) CN100403654C (en)
AT (1) ATE336827T1 (en)
AU (1) AU2001274254A1 (en)
CA (1) CA2410422A1 (en)
DE (1) DE60122334T2 (en)
GB (1) GB0015148D0 (en)
WO (1) WO2001099286A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101017048B1 (en) * 2004-03-03 2011-02-23 매그나칩 반도체 유한회사 Analog/Digital conversion device
CN1330094C (en) * 2004-10-10 2007-08-01 中兴通讯股份有限公司 Method for filtering vein interference of low-speed clock signal
JP4182448B2 (en) * 2006-07-27 2008-11-19 ソニー株式会社 Receiving device, receiving method, program, and recording medium
JP4304632B2 (en) * 2006-10-12 2009-07-29 ソニー株式会社 Receiving device, receiving method, program, and recording medium
DE102012208281A1 (en) * 2012-05-16 2013-11-21 Robert Bosch Gmbh Method for suppressing a scanning process and an apparatus for carrying out the method
US8698663B2 (en) * 2012-08-29 2014-04-15 Telefonaktiebolaget L M Ericsson (Publ) Digital analog converter
CN103884929B (en) * 2013-12-05 2017-06-16 国家电网公司 A kind of sample rate self adaptation equipment for monitoring power quality based on IEC61850
CN104935346B (en) * 2015-05-08 2018-08-03 上海交通大学 A kind of super low-power consumption event driven A/D converter and its compressive sampling method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1601749A (en) 1978-05-25 1981-11-04 Kazmin E V Digital computing device
JPS6037660B2 (en) * 1980-05-06 1985-08-27 日本ビクター株式会社 Approximate compression method for audio signals
HU189722B (en) * 1983-06-20 1986-07-28 Nehezipari Mueszaki Egyetem,Hu Method and circuit arrangement for sampling according to the value of signal independent of the frequency range of the signal recorded
JPH0644712B2 (en) * 1984-05-22 1994-06-08 株式会社アドバンス Signal processing method
US4680797A (en) * 1984-06-26 1987-07-14 The United States Of America As Represented By The Secretary Of The Air Force Secure digital speech communication
GB8520943D0 (en) 1985-08-21 1985-09-25 Gen Electric Analogue-to-digital conversion
EP0349664A1 (en) * 1988-07-06 1990-01-10 R. R. Donnelley & Sons Company Digital method and system for reproducing analog data
JPH0630443B2 (en) 1987-01-16 1994-04-20 ヤマハ株式会社 Input circuit for digital phases locked loop
US4712087A (en) 1987-02-09 1987-12-08 Tektronix, Inc. Analog-to-digital converter error correction circuit
DE8717485U1 (en) 1987-10-06 1989-04-06 Ant Nachrichtentechnik Gmbh, 7150 Backnang, De
DE19717642A1 (en) * 1997-04-25 1998-11-05 Siemens Ag Data regeneration procedure
US6020840A (en) * 1997-12-24 2000-02-01 Ong; Lance Method and apparatus for representing analog waveforms in digital form based on a multiplier, elapsed time and polarity

Also Published As

Publication number Publication date
CA2410422A1 (en) 2001-12-27
DE60122334T2 (en) 2007-09-13
EP1295399B1 (en) 2006-08-16
JP2003536344A (en) 2003-12-02
WO2001099286A1 (en) 2001-12-27
CN1437796A (en) 2003-08-20
KR20030043796A (en) 2003-06-02
EP1295399A1 (en) 2003-03-26
ATE336827T1 (en) 2006-09-15
KR100787789B1 (en) 2007-12-21
GB0015148D0 (en) 2000-08-09
US6803868B2 (en) 2004-10-12
DE60122334D1 (en) 2006-09-28
CN100403654C (en) 2008-07-16
US20030179018A1 (en) 2003-09-25

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