Method for compensating perturbations caused by...

Details Method for compensating perturbations caused by... Method for compensating perturbations caused by...

2005-12-20

2005-12-20

Eisen, Alexander (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S098000

Reexamination Certificate

active

06977638

ABSTRACT:
The present invention relates to a method of compensating for the disturbances due to the demultiplexing of an analogue signal with regard to a circuit comprising N data lines, wherein the demultiplexing is carried out by sample-and-hold circuits whose input receives the analogue signal and whose output is connected to one of the N data lines, the N sample-and-hold circuits being operated in succession by a sampling signal (ECHi).During the application of the sampling signal (ECHi, V1) to one of the sample-and-hold circuits, an opposite compensation level (V3) which is lower than the level of the sampling signal is applied to the N−1 sample-and-hold circuits.Application in particular to LCD screens.

REFERENCES:
patent: 5252956 (1993-10-01), Senn et al.
patent: 5384496 (1995-01-01), Tanaka
patent: 5896117 (1999-04-01), Moon
patent: 275 140 (1988-07-01), None
patent: 622 772 (1994-11-01), None
patent: 984 424 (2000-03-01), None

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