FI79222B - Signalbehandlingssystem med digital digital-analog-omvandlare. - Google Patents

Signalbehandlingssystem med digital digital-analog-omvandlare. Download PDF

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Publication number
FI79222B
FI79222B FI853191A FI853191A FI79222B FI 79222 B FI79222 B FI 79222B FI 853191 A FI853191 A FI 853191A FI 853191 A FI853191 A FI 853191A FI 79222 B FI79222 B FI 79222B
Authority
FI
Finland
Prior art keywords
source
digital
output
devices
analog
Prior art date
Application number
FI853191A
Other languages
English (en)
Finnish (fi)
Other versions
FI853191A0 (fi
FI853191L (fi
FI79222C (sv
Inventor
Werner Hinn
Original Assignee
Rca Licensing Corp
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 Rca Licensing Corp filed Critical Rca Licensing Corp
Publication of FI853191A0 publication Critical patent/FI853191A0/fi
Publication of FI853191L publication Critical patent/FI853191L/fi
Publication of FI79222B publication Critical patent/FI79222B/fi
Application granted granted Critical
Publication of FI79222C publication Critical patent/FI79222C/sv

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/04—Colour television systems using pulse code modulation
    • 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
    • H03M1/74—Simultaneous conversion
    • H03M1/742—Simultaneous conversion using current sources as quantisation value generators
    • H03M1/745—Simultaneous conversion using current sources as quantisation value generators with weighted currents
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/648—Video amplifiers
    • 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
    • H03M1/74—Simultaneous conversion
    • H03M1/80—Simultaneous conversion using weighted impedances
    • H03M1/808—Simultaneous conversion using weighted impedances using resistors

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Analogue/Digital Conversion (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (AREA)
  • Liquid Crystal Display Device Control (AREA)

Claims (7)

1. Digitalt signalbehandlingssystem som omfattar: - en digitalsignalkälla (10) som bestär av ett 5 flertal binära informationsbitar; - användningsorgan (28) för analoga signaler; och - ett digital-analogsignalomvandlingsorgan (20), som innefattar en matris av MOS-transistoranordningar, av vilka var och en anordning uppvisar galler-, d- och kallio elektroder; varvid - källelektroderna (S0-S7) uppvisar därtill anslut-na källomräden, - d-elektroderna är kopplade tillsammans (D) tili användningsorganen för alstring av analoga utgängssignaler 15 tili dem; kännetecknat därav, att - för minskning av omvandlingsorganets (20) ut-gängskapasitans är transistoranordningarna (Q0-Q7) verti-kala MOS-transistoranordningar, 20. källelektroderna (S0-S7) mottager motsvarande informationsbitar säsom ingängssignaler; och - källomrädena (1-128) har pä motsvarande sätt ska-lats tili storleken sä, att de källomräden som ansluts tili mindre signifikanta informationsbitar (2°) är mindre 25 än de källomräden (27 ) som ansluts tili mera signifikanta informationsbitar.
2. System enligt patentkravet 1, kännetecknat därav, att resistanser, som definierar strömmen, har pä motsvarande sätt kopplats tili VMOS-anordningarnas 30 källelektroder; och att VMOS-anordningarnas källomräden har skalats analogt med resistansernas värden sä, att tili det största källomrädet ansluts det minsta resistansvärdet och tili det minsta källomrädet ansluts det största resistansvärdet .
3. System enligt patentkravet 1, känneteck-
FI853191A 1984-08-27 1985-08-20 Signalbehandlingssystem med digital-analog-omvandlare FI79222C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64439784 1984-08-27
US06/644,397 US4603319A (en) 1984-08-27 1984-08-27 Digital-to-analog converter with reduced output capacitance

Publications (4)

Publication Number Publication Date
FI853191A0 FI853191A0 (fi) 1985-08-20
FI853191L FI853191L (fi) 1986-02-28
FI79222B true FI79222B (fi) 1989-07-31
FI79222C FI79222C (sv) 1989-11-10

Family

ID=24584749

Family Applications (1)

Application Number Title Priority Date Filing Date
FI853191A FI79222C (sv) 1984-08-27 1985-08-20 Signalbehandlingssystem med digital-analog-omvandlare

Country Status (17)

Country Link
US (1) US4603319A (sv)
JP (1) JPS6161527A (sv)
KR (1) KR930011508B1 (sv)
AU (1) AU582784B2 (sv)
CA (1) CA1233560A (sv)
DE (1) DE3530445C2 (sv)
DK (1) DK387885A (sv)
ES (1) ES8700520A1 (sv)
FI (1) FI79222C (sv)
FR (1) FR2569512B1 (sv)
HK (1) HK55293A (sv)
IT (1) IT1185644B (sv)
MY (1) MY100204A (sv)
NZ (1) NZ213229A (sv)
PT (1) PT80984B (sv)
SE (1) SE458812B (sv)
ZA (1) ZA856471B (sv)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2549506B2 (ja) * 1985-03-12 1996-10-30 富士写真フイルム株式会社 医用画像診断システム
US5001484A (en) * 1990-05-08 1991-03-19 Triquint Semiconductor, Inc. DAC current source bias equalization topology
JPH04271668A (ja) * 1991-02-27 1992-09-28 Matsushita Electric Ind Co Ltd ディジタル制御カソードクランプ回路
US5469164A (en) * 1993-09-30 1995-11-21 Ford Motor Company Circuit and method for digital to analog signal conversion
ES2368463T3 (es) * 2008-02-19 2011-11-17 Saab Ab Pantalla de visualización frontal con control de brillo.
US8941520B2 (en) * 2011-09-30 2015-01-27 Intel Corporation Resistor-based Σ-ΔDAC

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE572049A (sv) * 1957-12-03 1900-01-01
US3646587A (en) * 1969-12-16 1972-02-29 Hughes Aircraft Co Digital-to-analog converter using field effect transistor switch resistors
US4020486A (en) * 1975-04-18 1977-04-26 Analog Devices, Inc. Solid state digital-to-analog converter
JPS5588424A (en) * 1978-12-26 1980-07-04 Matsushita Electric Ind Co Ltd Digital-analog converter
JPS5668029A (en) * 1979-11-08 1981-06-08 Matsushita Electric Ind Co Ltd Digital-analog converter
JPS573423A (en) * 1980-06-09 1982-01-08 Matsushita Electric Ind Co Ltd Digital-to-analog converter
JPS57203324A (en) * 1981-06-10 1982-12-13 Matsushita Electric Ind Co Ltd Digital-to-analog converter
JPS58225722A (ja) * 1982-06-23 1983-12-27 Sanyo Electric Co Ltd 重み付けされたスイツチング素子
JPS594227A (ja) * 1982-06-29 1984-01-11 Mitsubishi Electric Corp デイジタル−アナログ変換器
NL8300466A (nl) * 1983-02-08 1984-09-03 Philips Nv Stroombronschakeling.
US4641194A (en) * 1984-08-27 1987-02-03 Rca Corporation Kinescope driver in a digital video signal processing system
US4642690A (en) * 1984-08-27 1987-02-10 Rca Corporation Digital video signal processor with analog level control

Also Published As

Publication number Publication date
DE3530445A1 (de) 1986-03-06
JPS6161527A (ja) 1986-03-29
SE8503873L (sv) 1986-02-28
SE8503873D0 (sv) 1985-08-19
DK387885D0 (da) 1985-08-26
IT1185644B (it) 1987-11-12
NZ213229A (en) 1989-05-29
ZA856471B (en) 1986-04-30
FR2569512B1 (fr) 1991-04-19
DK387885A (da) 1986-02-28
AU582784B2 (en) 1989-04-13
KR930011508B1 (ko) 1993-12-08
ES8700520A1 (es) 1986-10-01
PT80984B (pt) 1987-08-19
CA1233560A (en) 1988-03-01
MY100204A (en) 1990-04-10
DE3530445C2 (de) 1994-06-23
FI853191A0 (fi) 1985-08-20
FI853191L (fi) 1986-02-28
US4603319A (en) 1986-07-29
FR2569512A1 (fr) 1986-02-28
HK55293A (en) 1993-06-18
ES546283A0 (es) 1986-10-01
SE458812B (sv) 1989-05-08
IT8521660A0 (it) 1985-07-22
KR860002208A (ko) 1986-03-26
AU4643885A (en) 1986-03-06
FI79222C (sv) 1989-11-10
PT80984A (en) 1985-09-01

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Owner name: RCA LICENSING CORPORATION