Robert F Bousquet

US Patent:

6873206, Mar 29, 2005

Filed:

Apr 19, 2001

Appl. No.:

09/839184

Inventors:

Eric M. Hildebrant - Watertown MA, US
Paul A. Ward - Roslindale MA, US
Robert A. Bousquet - Somerville MA, US
Shida Iep Martinez - Andover MA, US
Harold Ralph Haley - Reading MA, US

Assignee:

Charles Stark Draper Laboratory, Inc. - Cambridge MA

International Classification:

G06G007/26

US Classification:

327560, 327561, 327563, 330253, 330259, 330260

Abstract:

A fully integrated charge amplifier with DC stabilization includes a first amplifier having an input terminal and an output terminal, a first capacitor coupled between the input terminal and the output terminal of the first amplifier, a transimpedance amplifier having an input terminal coupled to the output terminal of the first amplifier and an output terminal, and an impedance device coupled between the input terminal of the first amplifier and the output terminal of the second amplifier. The impedance device has a resistance of at least 1 MΩ.

US Patent:

20170238828, Aug 24, 2017

Filed:

May 20, 2016

Appl. No.:

15/160500

Inventors:

- Cambridge MA, US
Robert Bousquet - Waltham MA, US
Jesse J. Wheeler - Boston MA, US
Andrew Czarnecki - Cambridge MA, US
John Lachapelle - Princeton MA, US

International Classification:

A61B 5/04
A61B 5/00
A61N 1/36

Abstract:

Systems and methods are disclosed herein for recording electrical signals in the presence of artifacts. The system and methods can employ multiple techniques for attenuating large, unwanted artifacts while preserving lower amplitude desirable signals. Aspects that can improve the recording of electrical signals in the presence of larger artifacts include particular electrode placement and spacing, high dynamic range amplification with good linearity, and signal blanking. Combinations of more or fewer techniques can be employed to achieve the desired attenuation of signal artifacts while preserving the desired signal. The systems and methods are suitable for recording neural signals in the presence of electrical stimulation signals.