Patents by Inventor Praveen K. Pilly

Praveen K. Pilly 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).

  • Publication number: 20210004085
    Abstract: A brain-machine interface system configured to decode neural signals to control a target device includes a sensor to sample the neural signals, and a computer-readable storage medium having software instructions, which, when executed by a processor, cause the processor to transform the neural signals into a common representational space stored in the system, provide the common representational space as a state representation to inform an Actor recurrent neural network policy of the system, generate and evaluate, utilizing a deep recurrent neural network of the system having a generative sequence decoder, predictive sequences of control signals, supply a control signal to the target device to achieve an output of the target device, determine an intrinsic biometric-based reward signal, from the common representational space, based on an expectation of the output of the target device, and supply the intrinsic biometric-based reward signal to a Critic model of the system.
    Type: Application
    Filed: June 2, 2020
    Publication date: January 7, 2021
    Inventors: Nicholas A. Ketz, Aashish Patel, Michael D. Howard, Praveen K. Pilly, Jaehoon Choe
  • Patent number: 10877444
    Abstract: Described is a system for biofeedback, the system including one or more processors and a memory, the memory being a non-transitory computer-readable medium having executable instructions encoded thereon, such that upon execution of the instructions, the one or more processors perform operations including using a first biometric sensor during performance of a current task, acquiring first biometric data, and producing a first biometric value by assessing the first biometric data. The one or more processors further perform operations including determining a first relevance based on a first significance of a first correlation between the first biometric value and the current task, and controlling a device based on the first relevance and the first biometric value.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: December 29, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Shane M. Roach, Michael D. Howard, Praveen K. Pilly
  • Patent number: 10850099
    Abstract: Described is a system for transcranial stimulation to improve cognitive function. During operation, the system generates a customized stimulation pattern based on damaged white matter. Further, data is obtained representing natural brain oscillations of a subject. Finally, while the subject is awake, one or more electrodes are activated in phase with the natural brain oscillations and based on the customized stimulation pattern.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: December 1, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Steven W. Skorheim, Nicholas A. Ketz, Jaehoon Choe, Praveen K. Pilly
  • Patent number: 10835176
    Abstract: A system for closed-loop pulsed transcranial stimulation for cognitive enhancement. During operation, the system identifies a region of interest (ROI) in a subject's brain and then estimates ROI source activations based on the estimated source of the ROI. It is then determined if a subject is in a bad encoding state based on the ROI source activations. Finally, one or more electrodes are activated to apply a pulsed transcranial stimulation (tPS) therapy when the subject is in a bad encoding state, a predefined external event or behavior occurs, or the subject is in a consolidation state during sleep.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: November 17, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Iman Mohammadrezazadeh, Praveen K. Pilly, Michael D. Howard
  • Patent number: 10796596
    Abstract: Described is a closed-loop intervention control system for memory consolidation in a subject. During operation, the system simulates memory changes of a first memory in a subject during waking encoding of the memory, and then while the subject is sleeping and coupled to an intervention system. Based on the simulated memory changes, the system predicts behavioral performance for the first memory, the behavioral performance being a probability that the first memory can be recalled on cue. The system can be used to control operation (e.g., turn on or off) of the intervention system with respect to the first memory based on the behavioral performance of the first memory determined by the simulation.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 6, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Steven W. Skorheim, Michael D. Howard, Praveen K. Pilly
  • Patent number: 10744321
    Abstract: Described is a system for treating traumatic memories. During a wake stage, a virtual environment is displayed to a subject. A traumatic episode that may be similar to a traumatic memory of the subject is displayed to the user in the virtual environment in a benign setting. A transcranial current stimulation (tCS) controller applies a pattern of transcranial direct current stimulation (tDCS) to the subject during the traumatic episode, such that the traumatic memory in a benign setting is associated with the pattern of tDCS. During a sleep stage, if slow-wave sleep in the subject is detected via electroencephalogram (EEG) recordings, then in a first time period, the tCS controller may a transcranial alternating current stimulation (tACS) to the subject followed by a second time period without stimulation. In a third time period, the tCS controller may apply the pattern of tDCS to the subject. The sleep stage may be repeated until a desired weakening of the traumatic memory is reached.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: August 18, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Praveen K. Pilly, Michael D. Howard
  • Patent number: 10736561
    Abstract: Described is a system for memory improvement intervention. Based on both real-time EEG data and a neural model, the system simulates replay of a person's specific memory during a sleep state. Using the neural model, a prediction of behavioral performance of the replay of the specific memory is generated. If the prediction is below a first threshold, then using a memory enhancement intervention system, the system applies an intervention during the sleep state to improve consolidation of the specific memory. If the prediction is below a second threshold, the system reduces the intervention performed using the memory enhancement intervention system.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: August 11, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Michael D. Howard, Steven W. Skorheim, Praveen K. Pilly
  • Patent number: 10720076
    Abstract: Described is a closed-loop control system for memory consolidation in a subject. During operation, the system encodes information regarding environmental items as memories in both a long-term memory store and a short-term memory store. The system generates an activation level representation of a memory of interest related to at least one of the environmental items. An association strength representation for the memories is also generated. Memory consolidation is simulated when the subject is in NREM sleep or quiet waking by strengthening the association strength representation related to the memory of interest. The system predicts behavioral performance for the memory of interest as a probability that the memory of interest can be recalled on cue. When the behavioral performance is below a threshold, an intervention system can be activated.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: July 21, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Praveen K. Pilly, Michael D. Howard
  • Patent number: 10716514
    Abstract: Described is a system for automated artifact removal to generate a clean signal. During operation, the system selects initial noise components from a multi-channel, pre-processed signal by performing independent component analysis decomposition on the pre-processed signal to separate and rank the independent components as noise components. A clean signal is then generated through optimized selection of the noise components based on a signal quality index in which the noise components are moved from the original pre-processed signal until a sufficient signal quality is received.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: July 21, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Nicholas A. Ketz, Matthew E. Phillips, Praveen K. Pilly
  • Patent number: 10706355
    Abstract: Described is a system for pattern recognition designed for neuromorphic hardware. The system generates a spike train of neuron spikes for training patterns with each excitatory neuron in an excitatory layer, where each training pattern belongs to a pattern class. A spiking rate distribution of excitatory neurons is generated for each pattern class. Each spiking rate distribution of excitatory neurons is normalized, and a class template is generated for each pattern class from the normalized spiking rate distributions. An unlabeled input pattern is classified using the class templates. A mechanical component of an autonomous device can be controlled based on classification of the unlabeled input pattern.
    Type: Grant
    Filed: November 23, 2018
    Date of Patent: July 7, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Yongqiang Cao, Praveen K. Pilly
  • Patent number: 10664749
    Abstract: Described is a system for storing and retrieving a memory in context. A memory formed for a given context is encoded in a neural model of the entorhinal-hippocampal system, forming a context-appropriate memory. The context-appropriate memory is comprised of an association between presented environmental cues and presence of a rewarded event. The system is able to discriminate between environmental cues in an environment surrounding a vehicle and retrieve at least one encoded context-appropriate memory. Using the at least one retrieved encoded context-appropriate memory, the system determines whether to initiate a collision avoidance operation to cause the vehicle to proactively avoid a collision.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: May 26, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Praveen K. Pilly, Michael D. Howard, Rajan Bhattacharyya
  • Publication number: 20200134426
    Abstract: An autonomous or semi-autonomous system includes a temporal prediction network configured to process a first set of samples from an environment of the system during performance of a first task, a controller configured to process the first set of samples from the environment and a hidden state output by the temporal prediction network, a preserved copy of the temporal prediction network, and a preserved copy of the controller. The preserved copy of the temporal prediction network and the preserved copy of the controller are configured to generate simulated rollouts, and the system is configured to interleave the simulated rollouts with a second set of samples from the environment during performance of a second task to preserve knowledge of the temporal prediction network for performing the first task.
    Type: Application
    Filed: August 22, 2019
    Publication date: April 30, 2020
    Inventors: Nicholas A. Ketz, Praveen K. Pilly, Soheil Kolouri, Charles E. Martin, Michael D. Howard
  • Publication number: 20200125930
    Abstract: A method for retraining an artificial neural network trained on data from an old task includes training the artificial neural network on data from a new task different than the old task, calculating a drift, utilizing Sliced Wasserstein Distance, in activation distributions of a series of hidden layer nodes during the training of the artificial neural network with the new task, calculating a number of additional nodes to add to at least one hidden layer based on the drift in the activation distributions, resetting connection weights between input layer nodes, hidden layer nodes, and output layer nodes to values before the training of the artificial neural network on the data from the new task, adding the additional nodes to the at least one hidden layer, and training the artificial neural network on data from the new task.
    Type: Application
    Filed: September 5, 2019
    Publication date: April 23, 2020
    Inventors: Charles E. Martin, Nicholas A. Ketz, Praveen K. Pilly, Soheil Kolouri, Michael D. Howard, Nigel D. Stepp
  • Patent number: 10596372
    Abstract: Described is a system to accelerate memory consolidation using a steerable transcranial intervention. During operation, the system generates a unique transcranial and steerable stimulation tag to associate with memory of a task or event. Once the tag is generated, the system activates a plurality of electrodes (e.g., as few as four) to apply the unique transcranial stimulation tag during the occurrence of the event or task to be consolidated.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: March 24, 2020
    Assignee: HRL Laboratories, LLC
    Inventors: Michael D. Howard, Praveen K. Pilly
  • Publication number: 20200026287
    Abstract: Described is a system for online vehicle recognition in an autonomous driving environment. Using a learning network comprising an unsupervised learning component and a supervised learning component, images of moving vehicles extracted from videos captured in the autonomous driving environment are learned and classified. Vehicle feature data is extracted from input moving vehicle images. The extracted vehicle feature data is clustered into different vehicle classes using the unsupervised learning component. Vehicle class labels for the different vehicle classes are generated using the supervised learning component. Based on a vehicle class label for a moving vehicle in the autonomous driving environment, the system selects an action to be performed by the autonomous vehicle, and causes the selected action to be performed by the autonomous vehicle in the autonomous driving environment.
    Type: Application
    Filed: July 23, 2019
    Publication date: January 23, 2020
    Inventors: Qin Jiang, Youngkwan Cho, Nigel D. Stepp, Steven W. Skorheim, Vincent De Sapio, Praveen K. Pilly, Ruggero Scorcioni
  • Publication number: 20190314600
    Abstract: Described is an improved brain-machine interface including a neural interface and a controllable device in communication with the neural interface. The neural interface includes a neural device with one or more sensors for collecting signals of interest and one or more processors for conditioning the signals of interest, extracting salient neural features from and decoding the conditioned signals of interest, and generating a control command for the controllable device. The controllable device performs one or more operations according to the control command, and the neural device administers neuromodulation stimulation to reinforce operation of the controllable device.
    Type: Application
    Filed: May 30, 2019
    Publication date: October 17, 2019
    Inventors: Aashish N. Patel, Praveen K. Pilly
  • Patent number: 10420937
    Abstract: Described is a system for inducing a desired behavioral effect using an electrical current stimulation. A brain monitoring subsystem includes monitoring electrodes for sensing brain activity, and a brain stimulation subsystem includes stimulating electrodes for applying an electrical current stimulation. Multi-scale distributed data is registered into a graphical representation. The system identifies a sub-graph in the graphical representation and maps the sub-graph onto concept features, generating a concept lattice which relates the concept features to a behavioral effect. Finally, an electrical current stimulation to be applied to produce the behavioral effect is determined.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: September 24, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Praveen K. Pilly, Michael D. Howard, Heiko Hoffmann, Tsai-Ching Lu, Kang-Yu Ni, David W. Payton
  • Patent number: 10413724
    Abstract: Described is a system for synchronization of neurostimulation interventions. The system continuously monitors incoming neurophysiological signals. Latencies present in the monitoring of the incoming neurophysiological signals are measured. Based on the measured latencies, the timing of targeted neurostimulation interventions is determined, resulting in a neurostimulation intervention protocol. The neurostimulation intervention protocol is adjusted in real time for administration of neurostimulation during temporal regions of interest. The system then triggers administration of the neurostimulation during the temporal regions of interest.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: September 17, 2019
    Assignee: HRL Laboratories, LLC
    Inventors: Jaehoon Choe, Praveen K. Pilly
  • Publication number: 20190224480
    Abstract: Described is a system for cueing a specific memory in a waking state. The system sends an initiation signal to a memory recall controller to select a stored stimulation pattern previously associated with a specific memory of an event. The system signals to a memory recall controller to initiate delivery of the selected stimulation pattern to a brain in a waking state for a duration of the event via a brain stimulation system. Following completion of the event, the system signals for the memory recall controller to stop the brain stimulation system from delivering the selected stimulation pattern.
    Type: Application
    Filed: April 3, 2019
    Publication date: July 25, 2019
    Inventors: Michael D. Howard, Praveen K. Pilly, Michael J. Daily
  • Publication number: 20190228300
    Abstract: Described is a system for pattern recognition designed for neuromorphic hardware. The system generates a spike train of neuron spikes for training patterns with each excitatory neuron in an excitatory layer, where each training pattern belongs to a pattern class. A spiking rate distribution of excitatory neurons is generated for each pattern class. Each spiking rate distribution of excitatory neurons is normalized, and a class template is generated for each pattern class from the normalized spiking rate distributions. An unlabeled input pattern is classified using the class templates. A mechanical component of an autonomous device can be controlled based on classification of the unlabeled input pattern.
    Type: Application
    Filed: November 23, 2018
    Publication date: July 25, 2019
    Inventors: Yongqiang Cao, Praveen K. Pilly