Time division sampling digital to analog converter for...

Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion

Reexamination Certificate

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C345S076000

Reexamination Certificate

active

07339511

ABSTRACT:
Disclosed herein are a time division sampling digital to analog converter for a flat panel display, a method of implementing the digital to analog converter, and a data driver circuit using the digital to analog converter. The time division sampling digital to analog converter includes a timing signal generation means for generating timing signals, a data selection means for receiving n-bit digital data, dividing the n-bit digital data into k groups, and outputting the divided digital input data; k reference signal generation means for each outputting 2n/kanalog reference signals; a reference signal selection means for receiving the outputs of the reference signal generation means and outputting only 2n/kanalog reference signals selected according to a timing signal from the timing signal generation means; a multiplexer for outputting one of reference signals from the reference signal selection means using the n/k-bit digital data from the data selection means as a control input; and a sampling mode analog addition means for sampling and storing the output of the multiplexer according to a timing signal from the timing signal generation means.

REFERENCES:
patent: 5155488 (1992-10-01), Takahashi
patent: 6621437 (2003-09-01), Khalil et al.
patent: 6977635 (2005-12-01), Ogawa et al.
patent: 2003/0160716 (2003-08-01), Murphy
patent: 2006/0077140 (2006-04-01), Kwon
An article entitled, “42.3 Low-power and High . . . ”, By Y. Kudo et al., SID 03 DIGEST pp. 1244-1247, (2003).

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