Analog to digital converter controller

Computer graphics processing and selective visual display system – Display peripheral interface input device – Touch panel

Reexamination Certificate

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Details

C345S174000, C345S179000

Reexamination Certificate

active

07079117

ABSTRACT:
A touch screen controller has a converter that digitizes analog input as a function of an interference signal generated by an underlying touch screen device. To that end, the touch screen controller includes a set of inputs for receiving the noted interference signal from the touch screen device. The set of inputs also receives analog data from the touch screen device. The above noted converter, which is operatively coupled with the set of inputs, is capable of digitizing the analog data received from the touch screen device as a function of the interference signal.

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Wolfson Microelectronic Ltd, Multimedia AC'97 Codec with Integrated Touch Screen Controller, Advance Information, Oct. 2002, Rev 3.6, pp. 1-52.

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