Constant width pulse distribution in a digital to analog convert

Details Constant width pulse distribution in a digital to analog convert Constant width pulse distribution in a digital to analog convert

1988-04-04

1990-05-29

Shoop, Jr., William M.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341144, 341152, 377 42, H03M 166

Patent

active

049299476

ABSTRACT:
A digital-to-analog converter comprising: a distributing circuit (2, 3, 4, 5; 2, 13, 14-26) for distributing data pulses, which are bit-serially supplied at constant time intervals, into a plurality of routes
and for providing them as pulses having a constant width; and a converting circuit (12) for adding together the pulses from the distributing circuit and thereby for converting them to an analog output. Such a circuit arrangement can provide pulses for conversion to analog form which all have an identical waveform and an identical area, and errors caused by the difference between the rise and fall times of the pulses can be eliminated and therefore D/A conversion characteristics can be improved.

REFERENCES:
patent: 3603977 (1971-09-01), Szabo et al.
patent: 3754233 (1973-08-01), Sutherland
patent: 4087813 (1978-05-01), Minner et al.
patent: 4663610 (1987-05-01), Metz et al.

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