Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Patent
1991-04-30
1992-09-15
Williams, Howard L.
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
307265, 332109, H03M 182
Patent
active
051481685
ABSTRACT:
A digital-to-analog converter utilizing a PWM system for converting input digital data to PWM signals and finally to an analog signal divides the sampling period of the input digital data into an even number of sampling periods and produces PWM signals with equal pulse widths corresponding to the input digital data each divided sampling period, whereby a simple structure is provided to reduce harmonic distortion and obtain a high quality analog signal.
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The Engineering Staff of Analog Devices, Inc., Analog-Digital Conversion Handbook, 1986, pp. 186-188.
Masuda Toshihiko
Ueki Masaaki
Frommer William S.
Sinderbrand Alvin
Sony Corporation
Williams Howard L.
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