Combines EMG and impedance acquisition through skin electrodes. An injected excitation supplies an impedance measurement, which is used to generate calibration data for processing the EMG.
Inventors Leonard MacEachern, Mark Klibanov, Nick Stupich, Seyed Ali Etemad, Niranjan Iyer, and Adrian Straka. Issued October 10, 2017.
Combines biosignal filtering, predictive temporal selection, and moving-window heartbeat detection. The interval between detected events supplies the heart-rate estimate.
Inventors Seyed Ali Etemad, Leonard MacEachern, Mark Klibanov, and Roshanak Houmanfar. Issued September 26, 2017.
Preprocesses and segments acceleration and EMG, correlates the segments in time, and computes exercise metrics from the associated movement and muscle activity.
Inventors Seyed Ali Etemad, Roshanak Houmanfar, Mark Klibanov, Leonard MacEachern, and Kaveh Firouzi. Issued June 25, 2019.
This application addresses securing an article to a garment by molding material around the article and a textile region.
Inventors Timothy Alan Inglis, Michelle Hui Jun Zheng, James Henderson, and Kevin Bailey. Published December 1, 2016.
Related work in myoelectric interfaces
Myoelectric interfaces bring together electrode placement, signal conditioning, interpretation of muscle activity, and feedback to the user. Earlier patents explore several ways to connect these elements: continuous control of a virtual object, comparison with a demonstrated movement, recognition of a discrete gesture, and distributed wireless acquisition.
Narender P. Reddy and Sujat M. Sukthankar. Filed March 10, 1994; issued January 9, 1996.
Muscle activity supplies a force input to a finite-element model of a virtual object. The model computes deformation, with visual and force feedback completing the interaction. This illustrates the use of EMG amplitude as a continuous control quantity, a useful companion to gesture classification.
Chris S. McGowan, Somasekhar R. Kovvuri, and Steve G. Hostettler. Filed December 7, 1995; issued October 21, 1997.
Electrodes and wearable electronics acquire muscle signals from a teacher and a learner. A remote station compares normalized signals and returns vibratory feedback during movement practice. Wireless transmission, signal normalization, and the timing of feedback connect the sensing hardware to the learning task.
William Colyer Hill, Fernando Carlos Pereira, Yoram Singer, and Loren Gilbert Terveen. Claims priority to a provisional filed October 16, 1998; filed October 15, 1999; issued June 12, 2001.
A forearm or wrist band carries myoelectric sensors, a processor, and a wireless transmitter. The processor compares acquired signals with stored hand or finger gesture patterns and sends the corresponding device command. A learning mode records user-specific examples. The design connects a wearable acquisition interface, gesture recognition, and wireless control of portable electronics.
Swee Mok, Di-An Hong, Thomas S. Babin, and Sanjar Ghaem. Filed December 7, 2001; issued November 4, 2003.
Skin-mounted electrode assemblies digitize EMG and exchange data with a base unit. Sensor identifiers, buffering, remote programming, and synchronized transmission slots support acquisition from multiple sites. This places the emphasis on the acquisition network and its timing, complementing the interpretation of EMG as a control signal.