D/A conversion circuit

Details D/A conversion circuit D/A conversion circuit

1989-11-22

1992-10-13

Logan, Sharon D.

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

341122, 341141, H03M 166

Patent

active

051554887

ABSTRACT:
A D/A conversion circuit is provided in which the polarities of a series of input digital data are reversed with every other data block, and the original digital data and the reversed digital data are alterntely D/A converted. An output analong signal is obtained by subtraction between the two D/A converted analog signals.
With the above-mentioned arrangement, the D/A conversion circuit has a dynamic range equivalent to that using two D/A converters even with a single D/A converter.

REFERENCES:
patent: 3588880 (1971-06-01), Gross et al.
patent: 4677422 (1987-06-01), Naito
patent: 4845498 (1989-07-01), Kubo et al.
patent: 4864305 (1989-09-01), Toyama

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