Patents by Inventor Sanjay N. Kadiwala
Sanjay N. Kadiwala 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: 10613593Abstract: In aspects of flip position detection, a mobile device has a device housing with a base section and a flip section that folds onto the base section. The mobile device has a hinge that operates between open and closed positions of the device, and the flip section of the device housing operates to open relative to the base section of the device housing. An inductor is positioned in the device housing to have an inductance as the hinge operates to open and close the device housing. A metal plate is coupled to the hinge in a configuration that translates the metal plate relative to the inductor as the hinge operates between the open and closed positions. A sensor is implemented to detect the inductance between the inductor and the metal plate, where inductance values indicate the closed and open positions of the device housing.Type: GrantFiled: October 16, 2019Date of Patent: April 7, 2020Assignee: Motorola Mobility LLCInventors: Wayne Garrett Morrison, Dennis J. Budnick, Sanjay N. Kadiwala
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Patent number: 10531180Abstract: An electronic device, method, and computer program product provide acoustic limiting of an audio output using a feed-forward, filter-based, acoustic control system. An audio signal is received that has more than one acoustic frequency spectra intended for conversion to an acoustic output by transducers of an electronic device. A determination is made of an expected acoustic magnitude respectively for each acoustic frequency spectrum of the more than one acoustic frequency spectra. A determination is made whether the expected acoustic magnitude of any acoustic frequency spectra will exceed an acoustic output threshold. The acoustic control system attenuates the first acoustic frequency spectrum to generate a filtered audio signal with an attenuated acoustic frequency spectrum that is less than or equal to the acoustic output threshold. The filtered audio signal is transmitted to the at least one transducer to the produce the audio output that does not exceed.Type: GrantFiled: April 6, 2018Date of Patent: January 7, 2020Assignee: Motorola Mobility LLCInventors: Sanjay N. Kadiwala, Jonathan E. Eklund
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Patent number: 10481644Abstract: In aspects of flip position detection, a mobile device has a device housing with a base section and a flip section that folds onto the base section. The mobile device has a hinge that operates between open and closed positions of the device, and the flip section of the device housing operates to open relative to the base section of the device housing. An inductor is positioned in the device housing to have an inductance as the hinge operates to open and close the device housing. A metal plate is coupled to the hinge in a configuration that translates the metal plate relative to the inductor as the hinge operates between the open and closed positions. A sensor is implemented to detect the inductance between the inductor and the metal plate, where inductance values indicate the closed and open positions of the device housing.Type: GrantFiled: February 12, 2019Date of Patent: November 19, 2019Assignee: Motorola Mobility LLCInventors: Wayne Garrett Morrison, Dennis J. Budnick, Sanjay N. Kadiwala
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Publication number: 20190313180Abstract: An electronic device, method, and computer program product provide acoustic limiting of an audio output using a feed-forward, filter-based, acoustic control system. An audio signal is received that has more than one acoustic frequency spectra intended for conversion to an acoustic output by transducers of an electronic device. A determination is made of an expected acoustic magnitude respectively for each acoustic frequency spectrum of the more than one acoustic frequency spectra. A determination is made whether the expected acoustic magnitude of any acoustic frequency spectra will exceed an acoustic output threshold. The acoustic control system attenuates the first acoustic frequency spectrum to generate a filtered audio signal with an attenuated acoustic frequency spectrum that is less than or equal to the acoustic output threshold. The filtered audio signal is transmitted to the at least one transducer to the produce the audio output that does not exceed.Type: ApplicationFiled: April 6, 2018Publication date: October 10, 2019Inventors: SANJAY N. KADIWALA, JONATHAN E. EKLUND
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Patent number: 9930183Abstract: A method includes cycling through a plurality of microphone and speaker combinations in a mobile device in response to the mobile device being placed in speakerphone mode. The mobile device includes a plurality of microphones and at least one speaker. The method obtains acoustic echo data from an echo canceller for each microphone and speaker combination, calculates an acoustic isolation value for each combination and then selects a microphone and speaker combination based on the acoustic isolation value. The method may also include determining an echo spectrum for each microphone and speaker combination using the obtained acoustic echo data, and select an echo control profile based on a characteristic of the echo spectrum. The echo control profile is selected to further improve acoustic isolation for the selected microphone and speaker combination.Type: GrantFiled: February 27, 2017Date of Patent: March 27, 2018Assignee: Google Technology Holdings LLCInventors: Sanjay N. Kadiwala, Joseph C. Dwyer, Jincheng Wu
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Publication number: 20170180561Abstract: A method includes cycling through a plurality of microphone and speaker combinations in a mobile device in response to the mobile device being placed in speakerphone mode. The mobile device includes a plurality of microphones and at least one speaker. The method obtains acoustic echo data from an echo canceller for each microphone and speaker combination, calculates an acoustic isolation value for each combination and then selects a microphone and speaker combination based on the acoustic isolation value. The method may also include determining an echo spectrum for each microphone and speaker combination using the obtained acoustic echo data, and select an echo control profile based on a characteristic of the echo spectrum. The echo control profile is selected to further improve acoustic isolation for the selected microphone and speaker combination.Type: ApplicationFiled: February 27, 2017Publication date: June 22, 2017Inventors: Sanjay N. Kadiwala, Joseph C. Dwyer, Jincheng Wu
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Patent number: 9584642Abstract: A method includes cycling through a plurality of microphone and speaker combinations in a mobile device in response to the mobile device being placed in speakerphone mode. The mobile device includes a plurality of microphones and at least one speaker. The method obtains acoustic echo data from an echo canceller for each microphone and speaker combination, calculates an acoustic isolation value for each combination and then selects a microphone and speaker combination based on the acoustic isolation value. The method may also include determining an echo spectrum for each microphone and speaker combination using the obtained acoustic echo data, and select an echo control profile based on a characteristic of the echo spectrum. The echo control profile is selected to further improve acoustic isolation for the selected microphone and speaker combination.Type: GrantFiled: March 11, 2014Date of Patent: February 28, 2017Assignee: GOOGLE TECHNOLOGY HOLDINGS LLCInventors: Sanjay N Kadiwala, Joseph C Dwyer, Jincheng Wu
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Publication number: 20140274218Abstract: A method includes cycling through a plurality of microphone and speaker combinations in a mobile device in response to the mobile device being placed in speakerphone mode. The mobile device includes a plurality of microphones and at least one speaker. The method obtains acoustic echo data from an echo canceller for each microphone and speaker combination, calculates an acoustic isolation value for each combination and then selects a microphone and speaker combination based on the acoustic isolation value. The method may also include determining an echo spectrum for each microphone and speaker combination using the obtained acoustic echo data, and select an echo control profile based on a characteristic of the echo spectrum. The echo control profile is selected to further improve acoustic isolation for the selected microphone and speaker combination.Type: ApplicationFiled: March 11, 2014Publication date: September 18, 2014Applicant: Motorola Mobility LLCInventors: Sanjay N. Kadiwala, Joseph C. Dwyer, Jincheng Wu