Potential data selection circuit

Details Potential data selection circuit Potential data selection circuit

1993-06-22

1995-04-25

Sikes, William L.

Miscellaneous active electrical nonlinear devices, circuits, and

Gating

Converging with plural inputs and single output

327 94, 326106, G11C 800, H03K 301, H03K 1700

Patent

active

054101921

ABSTRACT:
There is provided a potential data selection circuit suitable for use, e.g., in a device for driving a liquid crystal pane adapted for selecting an arbitrary one of a plurality of potential data to output the selected one. This potential data selection circuit comprises: a sample-hold circuit adapted for sampling and holding selection data of at least 2 bits to output them, and a decoder adapted to receive the selection data from the sample-hold circuit to decode them to output control signals. The potential data selection circuit further comprises a multiplexer including analog switches adapted to respectively receive at least two potential data, and responsive to the control signals from the decoder to control the operations of the analog switches to select any one of the potential data to output the selected one, and an output circuit adapted to receive the selected potential data to output a signal of a voltage of the selected potential data to the exterior.

REFERENCES:
patent: 4894564 (1990-01-01), Sakashita
patent: 4985703 (1991-01-01), Kaneyama
patent: 5032739 (1991-07-01), Koh
patent: 5103110 (1992-04-01), Housworth
patent: 5281860 (1994-01-01), Krenik

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