Title:
デジタル-アナログ変換器
Document Type and Number:
Japanese Patent JP3992845
Kind Code:
B2
Abstract:
A digital-to-analog converter for generating output waveforms with less distortion without the need for high-speed components. The digital-to-analog converter comprises a D/A converter, four voltage holding sections, four step function waveform generators, a voltage summing section, two integrators and a timing controller. The voltages corresponding to four sequential digital data inputs are held in the voltage holding sections, respectively, and the step function generators generate step function waveforms at the voltage levels corresponding to the held voltages. The voltage summing section combines the step function waveforms generated in the step function waveform generators, and two integrators integrate this combined waveform two times, thus producing a continuous analog voltage composed of the input digital data.
Inventors:
Yukio Koyanagi
Toraichi Kazuo
Toraichi Kazuo
Application Number:
JP18683598A
Publication Date:
October 17, 2007
Filing Date:
June 17, 1998
Export Citation:
Assignee:
NIIGATA SEIMITSU CO.,LTD.
International Classes:
G06G7/186; H03M1/08; H03M1/06; H03M1/66; H03M1/72
Other References:
KAMADA M ET AL,QUADRATIC SPLINE INTERPOLATOR,NTERNATIONAL JOUNAL OF SYSTEMS SCIENCE,英国,1996年,vol.27,no.10,pages977-983
Attorney, Agent or Firm:
Masahiko Amagai