JPS5917567B2 - デジタル↓−アナログ変換器 - Google Patents

デジタル↓−アナログ変換器

Info

Publication number
JPS5917567B2
JPS5917567B2 JP50040217A JP4021775A JPS5917567B2 JP S5917567 B2 JPS5917567 B2 JP S5917567B2 JP 50040217 A JP50040217 A JP 50040217A JP 4021775 A JP4021775 A JP 4021775A JP S5917567 B2 JPS5917567 B2 JP S5917567B2
Authority
JP
Japan
Prior art keywords
bit
shift register
gate
bits
output
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.)
Expired
Application number
JP50040217A
Other languages
English (en)
Japanese (ja)
Other versions
JPS50141901A (enExample
Inventor
ハラスズテイ テグズ
プレストン スナツグス ウイレイ
Original Assignee
テキサス インストルメンツ インコ−ポレ−テツド
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 テキサス インストルメンツ インコ−ポレ−テツド filed Critical テキサス インストルメンツ インコ−ポレ−テツド
Publication of JPS50141901A publication Critical patent/JPS50141901A/ja
Publication of JPS5917567B2 publication Critical patent/JPS5917567B2/ja
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J5/00—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner
    • H03J5/02—Discontinuous tuning; Selecting predetermined frequencies; Selecting frequency bands with or without continuous tuning in one or more of the bands, e.g. push-button tuning, turret tuner with variable tuning element having a number of predetermined settings and adjustable to a desired one of these settings
    • H03J5/0245—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form
    • H03J5/0254—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter
    • H03J5/0263—Discontinuous tuning using an electrical variable impedance element, e.g. a voltage variable reactive diode, in which no corresponding analogue value either exists or is preset, i.e. the tuning information is only available in a digital form the digital values being transfered to a D/A converter the digital values being held in an auxiliary non erasable memory
    • 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
    • H03M1/86—Digital/analogue converters with intermediate conversion to frequency of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • Analogue/Digital Conversion (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Manipulation Of Pulses (AREA)
JP50040217A 1974-04-03 1975-04-02 デジタル↓−アナログ変換器 Expired JPS5917567B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US457664 1974-04-03
US05/457,664 US3942171A (en) 1974-04-03 1974-04-03 Scanning system for digital-analog converter

Publications (2)

Publication Number Publication Date
JPS50141901A JPS50141901A (enExample) 1975-11-15
JPS5917567B2 true JPS5917567B2 (ja) 1984-04-21

Family

ID=23817649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50040217A Expired JPS5917567B2 (ja) 1974-04-03 1975-04-02 デジタル↓−アナログ変換器

Country Status (6)

Country Link
US (1) US3942171A (enExample)
JP (1) JPS5917567B2 (enExample)
DE (1) DE2514388C3 (enExample)
FR (1) FR2266983A1 (enExample)
GB (1) GB1499565A (enExample)
NL (1) NL7503972A (enExample)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1553697A (en) * 1975-07-17 1979-10-03 Licentia Gmbh Digital to analogue converter arrangements
JPS5267201A (en) * 1975-12-01 1977-06-03 Matsushita Electric Ind Co Ltd Station selecting unit
NL182115C (nl) * 1976-02-11 1988-01-04 Philips Nv Digitaal-analoog-omzetter.
US4095218A (en) * 1976-08-30 1978-06-13 International Business Machines Corporation Hybrid pulse width-pulse rate digital-to-analog converter method and apparatus
US4181976A (en) * 1978-10-10 1980-01-01 Raytheon Company Bit reversing apparatus
US4313159A (en) * 1979-02-21 1982-01-26 Massachusetts Institute Of Technology Data storage and access apparatus
US4321687A (en) * 1979-10-01 1982-03-23 International Business Machines Corporation Timing pulse generation
JPH0711787B2 (ja) * 1987-03-02 1995-02-08 日本電気株式会社 デ−タ処理装置
US4780894A (en) * 1987-04-17 1988-10-25 Lsi Logic Corporation N-bit gray code counter
US4837573A (en) * 1988-03-03 1989-06-06 Process Automation Business, Inc. Digital to analog converter
JP2668180B2 (ja) * 1992-06-25 1997-10-27 三菱電機株式会社 絶対値比較装置
GB2288932A (en) * 1994-04-21 1995-11-01 Peter John Warren Fast settling pulse width modulated digital to analogue conversion
GB2330707B (en) * 1997-10-23 2001-10-24 Nokia Mobile Phones Ltd Digital to analogue converter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3110894A (en) * 1959-04-09 1963-11-12 Itt Digital-to-analog converter
US2907021A (en) * 1956-12-31 1959-09-29 Rca Corp Digital-to-analogue converter
US3230353A (en) * 1962-10-16 1966-01-18 Air Reduction Pulse rate multiplier

Also Published As

Publication number Publication date
DE2514388C3 (de) 1979-01-18
NL7503972A (nl) 1975-10-07
JPS50141901A (enExample) 1975-11-15
FR2266983A1 (enExample) 1975-10-31
GB1499565A (en) 1978-02-01
DE2514388B2 (de) 1978-05-24
DE2514388A1 (de) 1975-11-20
US3942171A (en) 1976-03-02

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