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Registered METHOD AND DEVICE FOR DIGITALLY CORRECTING DC OFFSET

디지털 DC 옵셋 보정 방법 및 장치
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Inventors
Shim Jae Hoon, Yu Hyun Kyu
Application No.
12628186 (2009.11.30)
Publication No.
20100134334 (2010.06.03)
Registration No.
8164494 (2012.04.24)
Country
UNITED STATES
Project Code
08MB3200, Development of Advanced Digital RF Technology for Next Generation Wireless Convergence Terminals, Yu Hyun Kyu
Abstract
There is provided a digital Direct Current (DC) offset correction method and device. The device includes a digital-analog converter charging a load capacitor according to an input code value and generating an initial voltage value of the load capacitor; a comparator comparing an output DC offset value of a discrete-time amplifier and filter on the basis of the initial voltage value with a preset output DC offset value when the discrete-time amplifier and filter and the load capacitor are connected to each other; and a controller changing the input code value of the digital-analog converter according to comparison result of the comparator.
KSP Keywords
Analog Converter, Correction method, DC-offset, Direct current(DC), Load capacitor, Offset correction, digital-analog, digital-analog converter, discrete-time, initial voltage, time amplifier
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Status Patent Country KIPRIS
Registered 디지털 DC 옵셋 보정 방법 및 장치 KOREA KIPRIS