Digital-to-analog converter

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

2008-04-29

2008-04-29

Mai, Lam T. (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S144000

Reexamination Certificate

active

07365670

ABSTRACT:
An analog-to-digital converter has a resistor string that generates a series of voltages that are equally spaced in the middle range of the series and unequally spaced at the upper and lower ends. An upper selector selects voltages at the upper end. A lower selector selects voltages at the lower end. A pair of midrange selectors select a pair of adjacent voltages in the middle range. A midrange voltage generator generates further voltages equally spaced between the two selected midrange voltages. An output selector selects one of the further voltages. The selectors are controlled by various bits of a digital input signal. The voltage selected by the upper selector, lower selector, or output selector becomes an analog output signal. This analog-to-digital converter has comparatively few resistors and transistors and can generate accurate voltages for driving a gray-scale display.

REFERENCES:
patent: 5093661 (1992-03-01), Tanimoto
patent: 6480132 (2002-11-01), Yoshioka et al.
patent: 6556162 (2003-04-01), Brownlow et al.
patent: 6950045 (2005-09-01), Kim
patent: 7183962 (2007-02-01), Roo et al.
patent: 2002-026732 (2002-01-01), None

Affiliated with

Also associated with

Rating

Digital-to-analog converter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Digital-to-analog converter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital-to-analog converter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2751731