CCD Digital-to-analog converter

Details CCD Digital-to-analog converter CCD Digital-to-analog converter

1978-03-06

1980-07-15

Miller, Charles D.

Communications: electrical

Audible indication

Percussion-type sound producer

307221D, H03K 1302

Patent

active

042131200

ABSTRACT:
A digital-to-analog converter is described in which a first circuit including charge storage means provides charge packets corresponding to digitally weighted samples of an analog reference voltage. A predetermined pattern of digital signals cooperates with gating means to determine which charge storage devices in a second circuit will be charged with the charge packets stored in the first circuit. In one embodiment, the selected charges stored in the second circuit are shifted serially, accumulated, and sensed to provide an analog output signal. In another embodiment, the selected charges stored in the second circuit are accumulated and sensed.

REFERENCES:
patent: 3056085 (1962-09-01), James
patent: 3140481 (1964-07-01), Hoffman
patent: 3449741 (1969-06-01), Egerton
patent: 3594782 (1971-07-01), Carbrey
patent: 3665458 (1972-05-01), Mulkey
patent: 3836906 (1974-09-01), Ando
patent: 3885167 (1975-05-01), Berlund
patent: 3906488 (1975-09-01), Suarez-Gartner
patent: 3930255 (1975-12-01), Means
patent: 3947705 (1976-03-01), Emmons
patent: 4072938 (1978-02-01), Buchanan
patent: 4072939 (1978-02-01), Heller
patent: 4087812 (1978-05-01), Terman
MOK "Solid-State Electronics", vol. 17, 1974, pp. 1147-1154.

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