Patents by Inventor Preethi Parasseri Narayanan
Preethi Parasseri Narayanan 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).
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Patent number: 11951357Abstract: In one aspect, an example method includes (i) receiving, from one or more cameras in a viewing environment of a content-presentation device, video of a user performing a fitness exercise in the viewing environment; (ii) using the received video and a skeletal detection model to estimate skeletal movement of the user; (iii) generating a synthetic video representing the user moving according to the estimated skeletal movement; (iv) based on a comparison of the estimated skeletal movement with predefined reference skeletal movement representing desired skeletal movement for the fitness exercise, and while the user is performing the fitness exercise, continually calculating a metric representing a difference between the estimated skeletal movement and the reference skeletal movement; and (v) causing the content-presentation device to concurrently display the generated synthetic video, a reference video representing the reference skeletal movement, and an indication of the metric.Type: GrantFiled: November 30, 2022Date of Patent: April 9, 2024Assignee: Roku, Inc.Inventors: Karina Levitian, Sunil Ramesh, Michael Cutter, Preethi Parasseri Narayanan
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Patent number: 11501792Abstract: A distributed voice controlled system has a primary assistant and at least one secondary assistant. The primary assistant has a housing to hold one or more microphones, one or more speakers, and various computing components. The secondary assistant is similar in structure, but is void of speakers. The voice controlled assistants perform transactions and other functions primarily based on verbal interactions with a user. The assistants within the system are coordinated and synchronized to perform acoustic echo cancellation, selection of a best audio input from among the assistants, and distributed processing.Type: GrantFiled: December 28, 2020Date of Patent: November 15, 2022Assignee: Amazon Technologies, Inc.Inventors: Michael Alan Pogue, Kavitha Velusamy, Preethi Parasseri Narayanan, Tony David, Philip Ryan Hilmes
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Patent number: 10887710Abstract: A voice-activated computing device configured to transmit a pilot tone and then capture or receive a signal, which corresponds to the pilot tone, reflected from within the environment containing the voice-activated computing device. The voice-activated computing device, or some other computing system or device, analyzes the received signal in order to determine analyze one or more characteristics present within the signal, i.e. noise, echo, etc. Based upon the analysis, models for signal processing can be determined, selected and/or altered. Future signals received by the voice-activated computing device can be processed with such models. The analysis can also allow for the models to be dynamically updated and for models to be dynamically created.Type: GrantFiled: April 18, 2016Date of Patent: January 5, 2021Assignee: Amazon Technologies, Inc.Inventor: Preethi Parasseri Narayanan
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Patent number: 10878836Abstract: A distributed voice controlled system has a primary assistant and at least one secondary assistant. The primary assistant has a housing to hold one or more microphones, one or more speakers, and various computing components. The secondary assistant is similar in structure, but is void of speakers. The voice controlled assistants perform transactions and other functions primarily based on verbal interactions with a user. The assistants within the system are coordinated and synchronized to perform acoustic echo cancellation, selection of a best audio input from among the assistants, and distributed processing.Type: GrantFiled: November 11, 2019Date of Patent: December 29, 2020Assignee: Amazon Technologies, Inc.Inventors: Michael Alan Pogue, Kavitha Velusamy, Preethi Parasseri Narayanan, Tony David, Philip Ryan Hilmes
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Patent number: 10515653Abstract: A distributed voice controlled system has a primary assistant and at least one secondary assistant. The primary assistant has a housing to hold one or more microphones, one or more speakers, and various computing components. The secondary assistant is similar in structure, but is void of speakers. The voice controlled assistants perform transactions and other functions primarily based on verbal interactions with a user. The assistants within the system are coordinated and synchronized to perform acoustic echo cancellation, selection of a best audio input from among the assistants, and distributed processing.Type: GrantFiled: August 28, 2018Date of Patent: December 24, 2019Assignee: Amazon Technologies, Inc.Inventors: Michael Alan Pogue, Kavitha Velusamy, Preethi Parasseri Narayanan, Tony David, Philip Ryan Hilmes
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Patent number: 10147441Abstract: A distributed voice controlled system has a primary assistant and at least one secondary assistant. The primary assistant has a housing to hold one or more microphones, one or more speakers, and various computing components. The secondary assistant is similar in structure, but is void of speakers. The voice controlled assistants perform transactions and other functions primarily based on verbal interactions with a user. The assistants within the system are coordinated and synchronized to perform acoustic echo cancellation, selection of a best audio input from among the assistants, and distributed processing.Type: GrantFiled: December 19, 2013Date of Patent: December 4, 2018Assignee: Amazon Technologies, Inc.Inventors: Michael Alan Pogue, Kavitha Velusamy, Preethi Parasseri Narayanan, Tony David, Philip Ryan Hilmes
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Patent number: 9966086Abstract: A system may be configured to interact with a user through speech using a first and second audio devices, where the first device produces audio and the second device captures audio. The second device may be configured to perform acoustic echo cancellation with respect to a microphone signal based on a reference signal provided by the first device. The reference and microphone signals may have the same nominal signal rates. However, the signal rates may drift from each other over time. In order to synchronize the rates of the signals, each of the devices maintains a signal index. The second device compares the values of the two signal indexes over time to determine rate differences between the reference and microphone signals and then corrects for the rate differences.Type: GrantFiled: June 16, 2016Date of Patent: May 8, 2018Assignee: Amazon Technologies, Inc.Inventors: Kurt Wesley Piersol, Preethi Parasseri Narayanan, Robert Ayrapetian, Arnaud Jean-Louis Charton, Gabe Beddingfield, Michael Alan Pogue, Yuwen Su
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Patent number: 9373318Abstract: A system may be configured to interact with a user through speech using a first and second audio devices, where the first device produces audio and the second device captures audio. The second device may be configured to perform acoustic echo cancellation with respect to a microphone signal based on a reference signal provided by the first device. The reference and microphone signals may have the same nominal signal rates. However, the signal rates may drift from each other over time. In order to synchronize the rates of the signals, each of the devices maintains a signal index. The second device compares the values of the two signal indexes over time to determine rate differences between the reference and microphone signals and then corrects for the rate differences.Type: GrantFiled: March 27, 2014Date of Patent: June 21, 2016Assignee: Amazon Technologies, Inc.Inventors: Kurt Wesley Piersol, Preethi Parasseri Narayanan, Robert Ayrapetian, Arnaud Jean-Louis Charton, Gabe Beddingfield, Michael Alan Pogue, Yuwen Su