Digital to analog converter

Details Digital to analog converter Digital to analog converter

1998-05-28

2000-07-04

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

348505, 348538, H03M 112

Patent

active

060845392

ABSTRACT:
An analog signal, for example, a video signal is divided into a high frequency signal and a low frequency signal by a high-pass filter and a low-pass filter. A high speed analog-to-digital converter (ADC) converts the high frequency signal to a first digital code while a low speed but high precision ADC converts the low frequency signal to a second digital code. A synthesizer combines the first and second digital codes and outputs a digital code as the result of the conversion. Therefore, analog-to-digital conversion with a high speed, high precision, and high resolution can be realized.

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patent: 5014055 (1991-05-01), Dingwall et al.
patent: 5126742 (1992-06-01), Schmidt et al.
patent: 5324995 (1994-06-01), Yee
patent: 5325093 (1994-06-01), Takamori
patent: 5387913 (1995-02-01), Park et al.

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