公开(公告)号：US09622672B2

公开(公告)日：2017-04-18

申请号：US14896337

申请日：2014-06-06

Applicant: Indiana University Research and Technology Corporation

Inventor： Ken Yoshida ,  Kevin Mauser ,  Jan Stavnshoj

IPC: H03M1/18 ,  A61B5/00 ,  A61B5/04 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0488

CPC classification number: A61B5/04004 ,  A61B5/04001 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0488 ,  A61B5/7203 ,  A61B5/7225 ,  H03M1/183

Abstract: A system for measuring electrical signals in a biological subject includes a variable gain amplifier with a predetermined transfer function that generates amplified signals corresponding to an input from electrical signals in the biological subject over a predetermined range of frequencies and amplification gain levels, an analog to digital converter generating digital data corresponding to the amplified signals, and a signal processing device receiving the digital data for the plurality of amplified signals. The signal processing device applies an inversion filter with another transfer function that is an inverse of the transfer function of the variable gain amplifier to remove an effect of the transfer function from the digital data, and generates an output signal corresponding to the electrical signals in the subject with reference to the filtered digital data.

公开(公告)号：US20160120428A1

公开(公告)日：2016-05-05

申请号：US14896337

申请日：2014-06-06

Applicant: Indiana University Research and Technology Corporation

Inventor： Ken Yoshida ,  Kevin Mauser ,  Jan Stavnshoj

IPC: A61B5/04 ,  A61B5/0488 ,  A61B5/0476 ,  A61B5/00 ,  A61B5/0402

CPC classification number: A61B5/04004 ,  A61B5/04001 ,  A61B5/0402 ,  A61B5/0476 ,  A61B5/0488 ,  A61B5/7203 ,  A61B5/7225 ,  H03M1/183

Abstract: A system for measuring electrical signals in a biological subject includes a variable gain amplifier with a predetermined transfer function that generates amplified signals corresponding to an input from electrical signals in the biological subject over a predetermined range of frequencies and amplification gain levels, an analog to digital converter generating digital data corresponding to the amplified signals, and a signal processing device receiving the digital data for the plurality of amplified signals. The signal processing device applies an inversion filter with another transfer function that is an inverse of the transfer function of the variable gain amplifier to remove an effect of the transfer function from the digital data, and generates an output signal corresponding to the electrical signals in the subject with reference to the filtered digital data.

Abstract translation: 用于测量生物学对象中的电信号的系统包括具有预定传递函数的可变增益放大器，其在预定的频率范围和放大增益水平上产生对应于生物学对象中的电信号的输入的放大信号，模数 产生对应于放大信号的数字数据的转换器，以及接收多个放大信号的数字数据的信号处理装置。 信号处理装置应用具有与可变增益放大器的传递函数相反的另一传递函数的反相滤波器，以从数字数据中消除传递函数的影响，并产生与该信号相对应的输出信号 参考滤波后的数字数据。