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公开(公告)号：US20230140696A1
公开(公告)日：2023-05-04
申请号：US17902048
申请日：2022-09-02
Inventor： Jung Won YU , Jin Hong KIM , Young Jae LEE , Kil Taek LIM
Abstract: Provided is a method of optimizing parameter intervals of manufacturing processes based on prediction intervals. The method includes: collecting process data by applying an experiment design method to a target process; training a second-order polynomial regression model based on the collected process data; estimating importance values of each input variable with respect to each output variable using the second-order polynomial regression model; defining an objective function for process optimization based on the second-order polynomial regression model; optimizing each parameter value by applying an optimization algorithm to the defined objective function; and optimizing each parameter interval including the optimized parameter value in an input space using the prediction interval of the second-order polynomial regression model.
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2.发明申请公开(公告)号：US20140169512A1
公开(公告)日：2014-06-19
申请号：US14183513
申请日：2014-02-18
Inventor： Jung Woo PARK , Young Jae LEE , Hyun Kyu Yu , Byung Hun MIN , Seong Do KIM , Hoai Nam NGUYEN , Sang Gug LEE
IPC: H04L25/08
CPC classification number: H04L25/08 , H03D7/1441 , H03D7/1458 , H03H19/004
Abstract: A direct conversion receiver includes: a high linearity mixer device including a sampler unit charge-sampling an input current according to a sampling frequency, and a buffer unit receiving an output signal from the sampler unit while having a low input impedance, amplifying the received signal, and outputting a current signal; and a filter device decimating an output signal from the mixer device and FIR-filtering the decimated signal.
Abstract translation: 直接转换接收机包括：高线性混频器装置，包括：采样单元，根据采样频率对输入电流进行采样;以及缓冲单元，其具有低输入阻抗，从采样器单元接收输出信号，放大接收信号 ，并输出电流信号; 以及滤波器装置对来自混频器装置的输出信号进行抽取，并对抽取的信号进行FIR滤波。
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