Patents by Inventor Leonard MacEachern

Leonard MacEachern has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10327670
    Abstract: Systems, methods and devices that facilitate determination of enhanced exercise or physical activity metrics by considering multiple types of data. Metrics are computable by pre-processing, and in some cases segmenting, a variety of input signals, such as acceleration signals, electromyography signals or other signals from a wearable device.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: June 25, 2019
    Assignee: GestureLogic Inc.
    Inventors: Seyed Ali Etemad, Roshanak Houmanfar, Mark Klibanov, Leonard MacEachern, Kaveh Firouzi
  • Patent number: 9782104
    Abstract: A system, method and device are described for biometric analysis using a wearable device. The device can be removeably securable to a user's skin surface and can include a plurality of electrodes positioned to acquire electrical signals from the skin surface. The device can also include an electromyography acquisition module and skin impedance acquisition module. A processing unit can use the electrodes to capture a plurality of electrical signals including at least one electromyography signal. The processing unit can generate calibration data based on a subset of the captured electrical signals and process the electromyography signals using the calibration data to determine a biometric for the user.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: October 10, 2017
    Assignee: GestureLogic Inc.
    Inventors: Leonard MacEachern, Mark Klibanov, Nick Stupich, Seyed Ali Etemad, Niranjan Iyer, Adrian Straka
  • Patent number: 9770179
    Abstract: A system, method and device are described for detecting a heart rate. A sensing unit can have a skin-facing surface that is removably securable to a user's skin surface and include at least one sensor positioned to acquire a bio-signal from the skin surface. A controller can be configured to capture a bio-signal stream using the at least one sensor and generate a preprocessed bio-signal stream by band-pass filtering the captured bio-signal stream with a predetermined passband. The controller can also be configured to determine, in a moving window, heartbeat signal portions when the preprocessed bio-signal stream has heartbeat impulse characteristics and determine the time between adjacent heartbeat signal portions to compute the heart rate.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: September 26, 2017
    Assignee: GestureLogic Inc.
    Inventors: Seyed Ali Etemad, Leonard MacEachern, Mark Klibanov, Roshanak Houmanfar
  • Publication number: 20150272483
    Abstract: Systems, methods and devices that facilitate determination of enhanced exercise or physical activity metrics by considering multiple types of data. Metrics are computable by pre-processing, and in some cases segmenting, a variety of input signals, such as acceleration signals, electromyography signals or other signals from a wearable device.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: S. Ali ETEMAD, Roshanak HOUMANFAR, Mark KLIBANOV, Leonard MACEACHERN, Kaveh FIROUZI
  • Publication number: 20150272457
    Abstract: A system, method and device are described for detecting a heart rate. A sensing unit can have a skin-facing surface that is removably securable to a user's skin surface and include at least one sensor positioned to acquire a bio-signal from the skin surface. A controller can be configured to capture a bio-signal stream using the at least one sensor and generate a preprocessed bio-signal stream by band-pass filtering the captured bio-signal stream with a predetermined passband. The controller can also be configured to determine, in a moving window, heartbeat signal portions when the preprocessed bio-signal stream has heartbeat impulse characteristics and determine the time between adjacent heartbeat signal portions to compute the heart rate.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Seyed Ali ETEMAD, Leonard MACEACHERN, Mark KLIBANOV, Roshanak HOUMANFAR
  • Publication number: 20150272482
    Abstract: Systems, methods and devices for recognizing user activity using data from accelerometer or other sensors. “Feature-based” approach and “model-based” approaches are described. In a feature-based approach, various values are extracted from input signals and projected onto a space that is selected to facilitate better segregation of data points. Classifiers identify the regions in this projected space in which the data points fall to distinguish between the different activity types. In a “model-based” approach, a generative model is trained for each activity type. Different activity types can be distinguished by identifying similarities between the input data with the generative models.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Roshanak HOUMANFAR, S. Ali ETEMAD, Leonard MACEACHERN, Mark KLIBANOV
  • Publication number: 20150272501
    Abstract: A system, method and device are described for biometric analysis using a wearable device. The device can be removeably securable to a user's skin surface and can include a plurality of electrodes positioned to acquire electrical signals from the skin surface. The device can also include an electromyography acquisition module and skin impedance acquisition module. A processing unit can use the electrodes to capture a plurality of electrical signals including at least one electromyography signal. The processing unit can generate calibration data based on a subset of the captured electrical signals and process the electromyography signals using the calibration data to determine a biometric for the user.
    Type: Application
    Filed: March 26, 2015
    Publication date: October 1, 2015
    Inventors: Leonard MACEACHERN, Mark KLIBANOV, Nick STUPICH, S. Ali ETEMAD, Niranjan IYER, Adrian STRAKA
  • Patent number: 7528669
    Abstract: A delay cell for use in a voltage controlled oscillator includes a differential amplifier having a pair of outputs, a common source resistive element supplying current to said differential amplifier, a varactor arrangement between the outputs having a control input, and a pair of load resistive elements connected to the respective outputs. The delay cell has a simple design, a small die area, low power dissipation, constant amplitude of oscillation versus control voltage, and a Figure of Merit (FOM) comparable to that of LC oscillators.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: May 5, 2009
    Inventors: Sinisa Milicevic, Leonard MacEachern, Samy Mahmoud
  • Publication number: 20070008043
    Abstract: A delay cell for use in a voltage controlled oscillator includes a differential amplifier having a pair of outputs, a common source resistive element supplying current to said differential amplifier, a varactor arrangement between the outputs having a control input, and a pair of load resistive elements connected to the respective outputs. The delay cell has a simple design, a small die area, low power dissipation, constant amplitude of oscillation versus control voltage, and a Figure of Merit (FOM) comparable to that of LC oscillators.
    Type: Application
    Filed: November 29, 2005
    Publication date: January 11, 2007
    Applicant: Carleton University
    Inventors: Sinisa Milicevic, Leonard MacEachern, Samy Mahmoud
  • Publication number: 20010041542
    Abstract: A method of performing a frequency conversion of a radio frequency (RF) information signal by mixing the information signal with a modulated signal from local oscillator. The local oscillator signal is modulated with a periodic, coded or pseudo-random modulating signal. A system for generating an intermediate frequency (IF) output signal from the information signal is also provided.
    Type: Application
    Filed: August 26, 1998
    Publication date: November 15, 2001
    Inventors: TAJINDER MANKU, LEONARD MACEACHERN
  • Patent number: 6148184
    Abstract: An RF direct down-conversion topology that is insensitive to leakage and device mismatching is presented. According to the system the RF signal is split into two arms with each arm having a mixer. Each mixer has two inputs namely a phase modulated local oscillator signal and the RF information signal. The phase modulated local oscillator signal between each arm differs by a 90 degrees phase shift. The output of the mixers is subtracted and the output of the subtractor is mixed with the phase modulation signal. The output of the third mixer represents the base band. A low pass filter then removes the unwanted signals.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: November 14, 2000
    Assignee: Mitel Corporation
    Inventors: Tajinder Manku, Leonard MacEachern