Title:
アクティブ電極，センサ・システム，および電位差検出方法
Document Type and Number:
Japanese Patent JP6713482
Kind Code:
B2
Abstract:
An active electrode has an electrode for sensing an electric potential and generating an input signal, and a shield placed near the electrode but being electric insulated from the electrode. An integrated amplifier (10) has an input connected to the at least one electrode for receiving the input signal, and providing a buffered path outputting a buffered output signal. The shield being connected to the output of the integrated amplifier to actively drive the electrical potential of the shield, thereby providing an active shielding of the electrode. The buffered path includes a first mixer (11) in front of the integrated amplifier for frequency shifting the input signal from a basic frequency range to a higher frequency range, and a second mixer (12) on the output of the integrated amplifier for frequency shifting the amplified signal from the higher frequency range back to the basic frequency range. The active electrode may be used for recording EEG signals.
Inventors:
Kidmose Preven
Chou Seon
Kirsgoor Selenium
Lee Chang
Chou Seon
Kirsgoor Selenium
Lee Chang
Application Number:
JP2017549582A
Publication Date:
June 24, 2020
Filing Date:
December 19, 2014
Export Citation:
Assignee:
T. O. Dobbleby Engineering A/S
International Classes:
A61B5/288; A61B5/308; H03F3/387
Domestic Patent References:
| JP2013518667A | ||||
| JP2011019156A | ||||
| JP2011516109A | ||||
| JP2014527862A | ||||
| JP2010517472A | ||||
| JP2012532731A | ||||
| JP2009296550A |
Foreign References:
| US20140276186 |
Attorney, Agent or Firm:
Tokyo uit international patent corporation