WO2004042931A3 - Configurable function implementing system and digital to analogue converters - Google Patents

Configurable function implementing system and digital to analogue converters Download PDF

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Publication number
WO2004042931A3
WO2004042931A3 PCT/GB2003/004828 GB0304828W WO2004042931A3 WO 2004042931 A3 WO2004042931 A3 WO 2004042931A3 GB 0304828 W GB0304828 W GB 0304828W WO 2004042931 A3 WO2004042931 A3 WO 2004042931A3
Authority
WO
WIPO (PCT)
Prior art keywords
digital
analogue
analogue converters
implementing system
function implementing
Prior art date
Application number
PCT/GB2003/004828
Other languages
French (fr)
Other versions
WO2004042931A2 (en
Inventor
Calvin Sim
Christofer Toumazou
Original Assignee
Toumaz Technology Ltd
Calvin Sim
Christofer Toumazou
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 Toumaz Technology Ltd, Calvin Sim, Christofer Toumazou filed Critical Toumaz Technology Ltd
Priority to DE10393686T priority Critical patent/DE10393686T5/en
Priority to GB0509235A priority patent/GB2409941B/en
Priority to JP2004549371A priority patent/JP2006505984A/en
Priority to AU2003285493A priority patent/AU2003285493A1/en
Publication of WO2004042931A2 publication Critical patent/WO2004042931A2/en
Publication of WO2004042931A3 publication Critical patent/WO2004042931A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06J—HYBRID COMPUTING ARRANGEMENTS
    • G06J1/00—Hybrid computing arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Physics (AREA)
  • Automation & Control Theory (AREA)
  • Evolutionary Computation (AREA)
  • Fuzzy Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Software Systems (AREA)
  • Analogue/Digital Conversion (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)

Abstract

Apparatus for converting an M-bit digital signal into an analogue signal. The apparatus comprising means (12,13) for mapping the M-bit digital signal to first and second digital values, so that the ratio of the first to the second digital value is equal to or approximates the value of the M-bit digital signal. First and second digital to analogue converters (14,15) are provided, the first digital to analogue converter (14) having an input for receiving said first digital value and the second digital to analogue converter (15) having an input for receiving said second digital value. Circuit means (16) is coupled to the analogue outputs of the digital to analogue converters (14,15) for dividing one of the analogue outputs by the other, and for providing the result to an output.
PCT/GB2003/004828 2002-11-06 2003-11-06 Configurable function implementing system and digital to analogue converters WO2004042931A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE10393686T DE10393686T5 (en) 2002-11-06 2003-11-06 Configurable functional implementation system and digital / analog converter
GB0509235A GB2409941B (en) 2002-11-06 2003-11-06 Configurable function implementing system and digital to analogue converters
JP2004549371A JP2006505984A (en) 2002-11-06 2003-11-06 Recombinant function implementation system and digital-analog converter
AU2003285493A AU2003285493A1 (en) 2002-11-06 2003-11-06 Configurable function implementing system and digital to analogue converters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0225846A GB2395383B (en) 2002-11-06 2002-11-06 Vector dot product multipliers and digital to analogue converters
GB0225846.5 2002-11-06

Publications (2)

Publication Number Publication Date
WO2004042931A2 WO2004042931A2 (en) 2004-05-21
WO2004042931A3 true WO2004042931A3 (en) 2004-09-23

Family

ID=9947289

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/004828 WO2004042931A2 (en) 2002-11-06 2003-11-06 Configurable function implementing system and digital to analogue converters

Country Status (6)

Country Link
JP (1) JP2006505984A (en)
CN (1) CN1736029A (en)
AU (1) AU2003285493A1 (en)
DE (1) DE10393686T5 (en)
GB (2) GB2395383B (en)
WO (1) WO2004042931A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116846399B (en) * 2023-05-31 2023-12-01 北京国科环宇科技股份有限公司 Digital-to-analog converter, electronic device, and digital-to-analog conversion method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56102118A (en) * 1980-01-21 1981-08-15 Hitachi Ltd Digital to analog converting circuit
JPS5860821A (en) * 1981-10-06 1983-04-11 Hioki Denki Kk Digital to analog converting and output equipment
EP0439623A1 (en) * 1989-08-21 1991-08-07 Fujitsu Limited Digital-to-analog converter
US6157334A (en) * 1997-06-02 2000-12-05 Seiko Epson Corporation Digital-analog converter, circuit board, electronic device and liquid crystal display device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335356A (en) * 1980-01-21 1982-06-15 Tektronix, Inc. Programmable two-quadrant transconductance amplifier
GB9123560D0 (en) * 1991-11-06 1992-01-02 Philips Electronic Associated Multiplying digital-to-analogue converter
JP2933112B2 (en) * 1992-11-16 1999-08-09 株式会社高取育英会 Multiplication circuit
US5703587A (en) * 1996-04-19 1997-12-30 Lsi Logic Corporation Digital-to-analog converter having overlapping segments

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56102118A (en) * 1980-01-21 1981-08-15 Hitachi Ltd Digital to analog converting circuit
JPS5860821A (en) * 1981-10-06 1983-04-11 Hioki Denki Kk Digital to analog converting and output equipment
EP0439623A1 (en) * 1989-08-21 1991-08-07 Fujitsu Limited Digital-to-analog converter
US6157334A (en) * 1997-06-02 2000-12-05 Seiko Epson Corporation Digital-analog converter, circuit board, electronic device and liquid crystal display device

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 005, no. 176 (E - 081) 12 November 1981 (1981-11-12) *
PATENT ABSTRACTS OF JAPAN vol. 007, no. 148 (E - 184) 29 June 1983 (1983-06-29) *
SIM C ET AL: "Power efficient scalable precision rational digital to analogue converters", PROCEEDINGS OF THE 2003 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (CAT. NO.03CH37430), ISCAS 2003. INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, BANGKOK, THAILAND, 25-28 MAY 2003, 2003, Piscataway, NJ, USA, IEEE, USA, pages I - 905-8 vol.1, XP002275781, ISBN: 0-7803-7761-3 *
VELIXON J M: "TRANSMISSION COEFFICIENT CORRECTION FOR DACS", IEEE DESIGN & TEST OF COMPUTERS, IEEE COMPUTERS SOCIETY. LOS ALAMITOS, US, vol. 13, no. 4, 21 December 1996 (1996-12-21), pages 34 - 39, XP000682966, ISSN: 0740-7475 *

Also Published As

Publication number Publication date
WO2004042931A2 (en) 2004-05-21
DE10393686T5 (en) 2005-10-06
AU2003285493A8 (en) 2004-06-07
GB2409941B (en) 2006-04-05
AU2003285493A1 (en) 2004-06-07
CN1736029A (en) 2006-02-15
GB2409941A (en) 2005-07-13
GB2395383A (en) 2004-05-19
GB0509235D0 (en) 2005-06-15
JP2006505984A (en) 2006-02-16
GB0225846D0 (en) 2002-12-11
GB2395383B (en) 2004-12-22

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