JPS55117329A - Non-linear type d/a converter - Google Patents

Non-linear type d/a converter

Info

Publication number
JPS55117329A
JPS55117329A JP2499379A JP2499379A JPS55117329A JP S55117329 A JPS55117329 A JP S55117329A JP 2499379 A JP2499379 A JP 2499379A JP 2499379 A JP2499379 A JP 2499379A JP S55117329 A JPS55117329 A JP S55117329A
Authority
JP
Japan
Prior art keywords
pulse
source
speed
converter
circuit
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.)
Granted
Application number
JP2499379A
Other languages
Japanese (ja)
Other versions
JPS5935531B2 (en
Inventor
Kuniharu Kato
Yuki Shimada
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2499379A priority Critical patent/JPS5935531B2/en
Publication of JPS55117329A publication Critical patent/JPS55117329A/en
Publication of JPS5935531B2 publication Critical patent/JPS5935531B2/en
Expired legal-status Critical Current

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
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval
    • H03M1/84—Non-linear conversion

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To increase the conversion accuracy of the D/A converter with addition of the correcting function and by using the programable code converter and also changing the analog signal source into the high frequency. CONSTITUTION:The digital coded signal is supplied to input terminals 1-n of PROM21, and at the same time the clock pulse is supplied to input terminal 29 to start reference pulse source 24. The pulses sent from source 24 are counted by counter 23. At the same time, the integration is given to the high-speed pulses sent from high-speed reference pulse source 25 which is started by the pulse of source 24 at integrator circuit 27 and via switch 26, and thus the high-speed pulse is converted into the pulse which is turned on and off in a high speed. Then the pulse to control switch 26 is delivered from logic digital comparator 22 at the time point when the digital code of counter 23 coincides with the output digital code of PROM21. Thus the input of the high-speed reference pulse is cut off to circuit 27, and the output of circuit 27 is applied for the discharge characteristics of the exponent function. And the level of the characteristics is held at sample holding circuit 28, thus increasing the conversion accuracy of the converter.
JP2499379A 1979-03-02 1979-03-02 Nonlinear D/A converter Expired JPS5935531B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2499379A JPS5935531B2 (en) 1979-03-02 1979-03-02 Nonlinear D/A converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2499379A JPS5935531B2 (en) 1979-03-02 1979-03-02 Nonlinear D/A converter

Publications (2)

Publication Number Publication Date
JPS55117329A true JPS55117329A (en) 1980-09-09
JPS5935531B2 JPS5935531B2 (en) 1984-08-29

Family

ID=12153495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2499379A Expired JPS5935531B2 (en) 1979-03-02 1979-03-02 Nonlinear D/A converter

Country Status (1)

Country Link
JP (1) JPS5935531B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61270443A (en) * 1985-05-24 1986-11-29 株式会社　構建設計研究所 Bent panel structure

Also Published As

Publication number Publication date
JPS5935531B2 (en) 1984-08-29

Similar Documents

Publication Publication Date Title
JPS5520008A (en) Digital signal receiving device
JPS54108666A (en) Multirange timer
JPS55117329A (en) Non-linear type d/a converter
JPS55145430A (en) A/d converter
JPS5644225A (en) Analogue digital converter
JPS5673924A (en) Digital-analog conversion system
JPS54149447A (en) Signal volume controller
JPS5545235A (en) Analogue-digital converter
JPS54144854A (en) Controller for signal amount
JPS5767322A (en) Analogue-digital converting circuit provided with agc function
JPS5631212A (en) Variable attenuator
JPS5547731A (en) Oscillation circuit
JPS56132021A (en) Analogue and digital converter
JPS57143920A (en) Analog-to-digital converting circuit
JPS5530213A (en) Signal converter
JPS5448149A (en) A/d converter using ring oscillation
JPS57145430A (en) Integrating a/d converter
JPS57135520A (en) D/a converter
JPS56126319A (en) Self-correcting analog-digital converter
JPS558144A (en) Analog-digital conversion circuit
JPS56140402A (en) Operating device
JPS56168429A (en) Analog-to-digital converter
JPS56149670A (en) Processing circuit of optional function waveform
JPS57203328A (en) Digital-to-analog converter
JPS5746529A (en) Analog-digital converting method