Patents by Inventor Parth H. Pathak

Parth H. Pathak 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).

  • Energy-efficient, accelerometer-based hotword detection to launch a voice-control system
    Patent number: 10347249
    Abstract: The disclosed embodiments relate to the design of a system that uses an accelerometer in a mobile device to detect hotwords, which activate a voice interface to recognize subsequent voice input. During operation, the system gathers samples comprising readings from the accelerometer in the mobile device. Next, the system calculates features from the gathered samples. The system then classifies the calculated features using a classifier, which has been trained to detect hotwords based on calculated features. Finally, if the classifier detects one or more hotwords, the system causes the mobile device to launch a voice-control system that recognizes subsequent voice input received from an audio microphone.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: July 9, 2019
    Assignee: The Regents of the University of California
    Inventors: Prasant Mohapatra, Li Zhang, Parth H. Pathak, Muchen Wu
  • WiFi-based person-identification technique for use in smart spaces
    Patent number: 10045717
    Abstract: The disclosed embodiments relate to the design of a system that identifies a person. During operation, the system receives channel state information (CSI) for a set of orthogonal frequency division modulation (OFDM) subcarriers while the person moves in a region that includes two or more nodes that use the set of OFDM subcarriers to communicate with one another. Next, the system analyzes the CSI to obtain an analysis result. The system then determines the identity of the person based on the analysis result.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: August 14, 2018
    Assignee: The Regents of the University of California
    Inventors: Prasant Mohapatra, Parth H. Pathak, Yunze Zeng
  • WIFI-BASED PERSON-IDENTIFICATION TECHNIQUE FOR USE IN SMART SPACES
    Publication number: 20170354349
    Abstract: The disclosed embodiments relate to the design of a system that identifies a person. During operation, the system receives channel state information (CSI) for a set of orthogonal frequency division modulation (OFDM) subcarriers while the person moves in a region that includes two or more nodes that use the set of OFDM subcarriers to communicate with one another. Next, the system analyzes the CSI to obtain an analysis result. The system then determines the identity of the person based on the analysis result.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 14, 2017
    Applicant: The Regents of the University of California
    Inventors: Prasant Mohapatra, Parth H. Pathak, Yunze Zeng
  • ENERGY-EFFICIENT, ACCELEROMETER-BASED HOTWORD DETECTION TO LAUNCH A VOICE-CONTROL SYSTEM
    Publication number: 20170316779
    Abstract: The disclosed embodiments relate to the design of a system that uses an accelerometer in a mobile device to detect hotwords, which activate a voice interface to recognize subsequent voice input. During operation, the system gathers samples comprising readings from the accelerometer in the mobile device. Next, the system calculates features from the gathered samples. The system then classifies the calculated features using a classifier, which has been trained to detect hotwords based on calculated features. Finally, if the classifier detects one or more hotwords, the system causes the mobile device to launch a voice-control system that recognizes subsequent voice input received from an audio microphone.
    Type: Application
    Filed: April 27, 2017
    Publication date: November 2, 2017
    Applicant: The Regents of the University of California
    Inventors: Prasant Mohapatra, Li Zhang, Parth H. Pathak, Muchen Wu