公开(公告)号：US20180172793A1

公开(公告)日：2018-06-21

申请号：US15380597

申请日：2016-12-15

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Marco PASSONI ,  Alessia CAGIDIACO ,  Stefano ROSSI

IPC: G01R35/00 ,  A61B5/053 ,  A61B5/00

CPC classification number: G01R35/005 ,  A61B5/053 ,  A61B5/6804 ,  A61B5/681 ,  A61B5/7203 ,  A61B5/7221 ,  A61B5/7225 ,  A61B5/7228 ,  A61B5/7235 ,  A61B5/7278 ,  A61B2560/0209 ,  A61B2560/0223

Abstract: A method and apparatus for compensating and calibrating a bio-impedance measurement device are provided. In the method and apparatus, a memory stores a plurality of compensation parameters and a first detection channel receives a first detection signal, compensates the first detection signal using a first compensation parameter of the plurality of compensation parameters. In the method and apparatus, a second detection channel receives a second detection signal and a third detection signal and compensates the second and third detection signals using second and third compensation parameters of the plurality of compensation parameters and the compensated first detection signal. The impedance measurement device generates a first output signal representative of a first impedance measurement and a second output signal representative of a second impedance measurement based on the compensated first, second and third detection signals.

公开(公告)号：US20200221968A1

公开(公告)日：2020-07-16

申请号：US16734264

申请日：2020-01-03

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Alessandro GUMIERO ,  Marco PASSONI ,  Luigi DELLA TORRE ,  Stefano ROSSI

IPC: A61B5/0408

Abstract: A wearable sensing device includes a connector socket provided with contact pads connectable to sensing electrodes for sensing biological electrical signals. A supply module is provided with a battery, which is housed in a first casing configured for reversible coupling with the connector socket. A control module is housed in a second casing distinct from the first casing and configured for coupling with the supply module and with the connector socket. The control module is equipped with a processing unit configured to process biological electrical signals detectable through the contact pads. Mechanical-connection members couple the supply module to the connector socket. Electrical-connection members distinct from the mechanical-connection members are configured to connect the battery and the contact pads to the control module.

公开(公告)号：US20150051505A1

公开(公告)日：2015-02-19

申请号：US14480024

申请日：2014-09-08

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano ROSSI

IPC: A61B5/053 ,  G01N33/48 ,  G01N33/18 ,  G01R27/02 ,  G01R1/30

CPC classification number: A61B5/053 ,  A61B5/0537 ,  A61B5/7225 ,  A61B2562/0214 ,  G01N33/18 ,  G01N33/48 ,  G01N33/4833 ,  G01R1/30 ,  G01R27/02 ,  G01R27/26 ,  Y10T29/49007

Abstract: A device for measuring impedance of biological tissue may include electrodes and a voltage-to-current converter coupled to the electrodes to drive an alternating current (AC) through the tissue and sense an AC voltage. The converter may include an amplifier having first and second inputs and an output, a first voltage divider coupled to the first input, a second voltage divider coupled to the second input, a filter capacitor coupled between the output and the second voltage divider, a current limiting resistor coupled between the second input the second voltage divider, and a bypass capacitor coupled to the second input of the amplifier and in parallel with the resistor. A single-ended amplitude modulation (AM) demodulator may demodulate the AC voltage and generate a corresponding baseband voltage representing the impedance. The device may also include an output circuit to generate output signals representative of DC and AC components of the baseband voltage.

Abstract translation: 用于测量生物组织的阻抗的装置可以包括电极和耦合到电极的电压 - 电流转换器，以驱动通过组织的交流电（AC）并感测AC电压。 转换器可以包括具有第一和第二输入和输出的放大器，耦合到第一输入的第一分压器，耦合到第二输入的第二分压器，耦合在输出和第二分压器之间的滤波电容器， 耦合在第二输入端和第二分压器之间的限流电阻器和耦合到放大器的第二输入端并与电阻器并联的旁路电容器。 单端幅度调制（AM）解调器可以解调AC电压并产生表示阻抗的相应基带电压。 该器件还可以包括输出电路，以产生表示基带电压的DC和AC分量的输出信号。