Patents by Inventor Richard Allen Kreifeldt
Richard Allen Kreifeldt 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: 11162806Abstract: Various embodiments provide techniques for performing an operation that includes receiving a request specifying one or more geospatial commands. The operation further includes generating a navigation query based on the one or more geospatial commands and using a user-specific geospatial command model generated based on collected user behavior and feedback. The operation also includes executing the navigation query against a navigation database to determine route and destination information.Type: GrantFiled: December 23, 2015Date of Patent: November 2, 2021Assignee: Harman International Industries, IncorporatedInventor: Richard Allen Kreifeldt
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Patent number: 10582046Abstract: A voice recognition-based dialing method and a voice recognition-based dialing system are provided. The methods includes: determining a recognition result based on a user's voice input, at least one acoustic model and at least one language model, where the at least one acoustic model and the at least one language model are obtained based on information collected in an electronic device. The system includes: obtain at least one acoustic model and at least one language model based on information collected in an electronic device; and determine a recognition result based on a user's voice input, the at least one acoustic model and the at least one language model. The acoustic models and the language models are updated based on the information collected in the electronic device, which may be helpful to the voice recognition-based dialing.Type: GrantFiled: December 30, 2014Date of Patent: March 3, 2020Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: Jianjun Ma, Liping Hu, Richard Allen Kreifeldt
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Patent number: 10555069Abstract: In an audio system, an audio signal is preprocessed to provide an input signal to a fast detector and a slow detector, the input signal comprising alert signals and ambient sounds. The slow detector determines the ambient sound level of the input signal which is output to an alert signal detector. The alert signal detector uses the ambient sound level to compute an adaptive threshold level using an adaptive threshold function. The fast detector determines the envelope level of the input signal which is output to the alert signal detector. The alert signal detector compares the envelope level to the adaptive threshold level to determine if an alert signal is present in the input signal. The adaptive threshold level varies depending on the ambient sound level of the input signal and the alert signal detection of the audio system automatically adapts to changing acoustic environments having different ambient sound levels.Type: GrantFiled: August 14, 2017Date of Patent: February 4, 2020Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: Ajay Iyer, Jeffrey Hutchings, Richard Allen Kreifeldt
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Patent number: 10474716Abstract: One embodiment provides a non-transitory medium containing computer program code that performs an operation that includes determining an initial musical preferences model describing acoustical characteristics of musical content by identifying user preferences. Additionally, the operation includes dividing the initial musical preferences model into a plurality of cluster models based on the identified user preferences, each of the plurality of cluster models representing a respective set of acoustical characteristics of musical content. One of the plurality of cluster models is selected. The operation further includes creating a playlist by selecting instances of available musical content for playback using the selected cluster model.Type: GrantFiled: January 5, 2015Date of Patent: November 12, 2019Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventor: Richard Allen Kreifeldt
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Patent number: 10368164Abstract: An audio processing system for a listening device includes an input device, a voice activity detector and a ratio-based attenuator. The input device is configured to receive a first audio signal emanating from an environment and including a signal of interest. The voice activity detector is configured to generate a control signal in response to the first audio signal. The ratio-based attenuator is configured to receive the control signal and determine whether the signal level of the first audio signal exceeds the signal level of an audio signal received from an audio playback device by at least a target difference. If so, then the audio level of the playback audio signal is maintained. Otherwise, the audio level of the playback audio signal is adjusted, where, at the adjusted value, the first signal level exceeds the playback signal level by at least the target difference.Type: GrantFiled: March 31, 2017Date of Patent: July 30, 2019Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: James M. Kirsch, Ajay Iyer, Richard Allen Kreifeldt
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Publication number: 20190116260Abstract: A voice recognition-based dialing method and a voice recognition-based dialing system are provided. The methods includes: determining a recognition result based on a user's voice input, at least one acoustic model and at least one language model, where the at least one acoustic model and the at least one language model are obtained based on information collected in an electronic device. The system includes: obtain at least one acoustic model and at least one language model based on information collected in an electronic device; and determine a recognition result based on a user's voice input, the at least one acoustic model and the at least one language model. The acoustic models and the language models are updated based on the information collected in the electronic device, which may be helpful to the voice recognition-based dialing.Type: ApplicationFiled: December 30, 2014Publication date: April 18, 2019Inventors: Jianjun MA, Liping HU, Richard Allen KREIFELDT
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Patent number: 10250650Abstract: One embodiment provides a non-transitory medium containing computer program code that performs an operation that includes retrieving, for each of two or more identified users, a respective musical preferences model representing a plurality of acoustical characteristics of musical content determined based on preferences of the respective user. Additionally, the operation includes generating a common musical preferences model representing a set of common acoustical characteristics of musical content for the two or more identified users, based on the musical preferences models for each of the two or more identified users. The operation also includes identifying a library of available musical content. Furthermore, the operation includes creating a playlist of two or more musical selections from the library of available musical content, based on the common musical preferences model.Type: GrantFiled: January 5, 2015Date of Patent: April 2, 2019Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: Richard Allen Kreifeldt, Michelle L. Avary
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Patent number: 10015593Abstract: Digital filters for processing an input audio signal for extending the audio capabilities and reducing distortion of a loudspeaker. Such extension may include a general sound pressure level (SPL) extension or a more targeted low frequency (LF) extension. This may be accomplished by modifying an original frequency response of the loudspeaker to achieve a particular extension, and applying a digital linear filter based on the modified frequency response to the audio signal. A nonlinear digital filter may also be applied to the audio signal reduce nonlinear distortions of the loudspeaker. The nonlinear digital filter may be based on an inverse of an electro-mechanical model of the loudspeaker. In this manner, a loudspeaker may be driven close to its maximum theoretical power capability without increasing distortion in the loudspeaker output.Type: GrantFiled: March 3, 2015Date of Patent: July 3, 2018Assignee: University of UtahInventors: Ajay Iyer, Jeffrey Hutchings, Richard Allen Kreifeldt, V. John Mathews, Shreyas Srikanth Payal
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Publication number: 20180014112Abstract: In an audio system, an audio signal is preprocessed to provide an input signal to a fast detector and a slow detector, the input signal comprising alert signals and ambient sounds. The slow detector determines the ambient sound level of the input signal which is output to an alert signal detector. The alert signal detector uses the ambient sound level to compute an adaptive threshold level using an adaptive threshold function. The fast detector determines the envelope level of the input signal which is output to the alert signal detector. The alert signal detector compares the envelope level to the adaptive threshold level to determine if an alert signal is present in the input signal. The adaptive threshold level varies depending on the ambient sound level of the input signal and the alert signal detection of the audio system automatically adapts to changing acoustic environments having different ambient sound levels.Type: ApplicationFiled: August 14, 2017Publication date: January 11, 2018Inventors: Ajay Iyer, Jeffrey Hutchings, Richard Allen Kreifeldt
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Patent number: 9848262Abstract: A corrector is configured to transform audio signals to compensate for unwanted distortion characteristics of a loudspeaker. A tuning filter is configured to transform audio signals to incorporate desired distortion characteristics associated with a target loudspeaker. By chaining together the tuning filter and the corrector, an audio signal can be modified so that the loudspeaker, when outputting the audio signal, has response characteristics of the target loudspeaker.Type: GrantFiled: March 23, 2016Date of Patent: December 19, 2017Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: Ajay Iyer, Jeffrey Hutchings, Richard Allen Kreifeldt
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Publication number: 20170280241Abstract: A corrector is configured to transform audio signals to compensate for unwanted distortion characteristics of a loudspeaker. A tuning filter is configured to transform audio signals to incorporate desired distortion characteristics associated with a target loudspeaker. By chaining together the tuning filter and the corrector, an audio signal can be modified so that the loudspeaker, when outputting the audio signal, has response characteristics of the target loudspeaker.Type: ApplicationFiled: March 23, 2016Publication date: September 28, 2017Inventors: Ajay Iyer, Jeffrey Hutchings, Richard Allen Kreifeldt
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Patent number: 9749733Abstract: In an audio system, an audio signal is preprocessed to provide an input signal to a fast detector and a slow detector, the input signal comprising alert signals and ambient sounds. The slow detector determines the ambient sound level of the input signal which is output to an alert signal detector. The alert signal detector uses the ambient sound level to compute an adaptive threshold level using an adaptive threshold function. The fast detector determines the envelope level of the input signal which is output to the alert signal detector. The alert signal detector compares the envelope level to the adaptive threshold level to determine if an alert signal is present in the input signal. The adaptive threshold level varies depending on the ambient sound level of the input signal and the alert signal detection of the audio system automatically adapts to changing acoustic environments having different ambient sound levels.Type: GrantFiled: April 7, 2016Date of Patent: August 29, 2017Assignee: HARMAN INTENATIONAL INDUSTRIES, INCORPORATEDInventors: Ajay Iyer, Jeffrey Hutchings, Richard Allen Kreifeldt
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Publication number: 20170223451Abstract: An audio processing system for a listening device includes an input device, a voice activity detector and a ratio-based attenuator. The input device is configured to receive a first audio signal emanating from an environment and including a signal of interest. The voice activity detector is configured to generate a control signal in response to the first audio signal. The ratio-based attenuator is configured to receive the control signal and determine whether the signal level of the first audio signal exceeds the signal level of an audio signal received from an audio playback device by at least a target difference. If so, then the audio level of the playback audio signal is maintained. Otherwise, the audio level of the playback audio signal is adjusted, where, at the adjusted value, the first signal level exceeds the playback signal level by at least the target difference.Type: ApplicationFiled: March 31, 2017Publication date: August 3, 2017Inventors: James M. Kirsch, Ajay Iyer, Richard Allen Kreifeldt
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Patent number: 9615170Abstract: An audio processing system for a listening device includes an input device, a voice activity detector and a ratio-based attenuator. The input device is configured to receive a first audio signal emanating from an environment and including a signal of interest. The voice activity detector is configured to generate a control signal in response to the first audio signal. The ratio-based attenuator is configured to receive the control signal and determine whether the signal level of the first audio signal exceeds the signal level of an audio signal received from an audio playback device by at least a target difference. If so, then the audio level of the playback audio signal is maintained. Otherwise, the audio level of the playback audio signal is adjusted, where, at the adjusted value, the first signal level exceeds the playback signal level by at least the target difference.Type: GrantFiled: June 4, 2015Date of Patent: April 4, 2017Assignee: HARMAN INTERNATIONAL INDUSTRIES, INC.Inventors: James M. Kirsch, Ajay Iyer, Richard Allen Kreifeldt
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Publication number: 20160196345Abstract: One embodiment provides a non-transitory medium containing computer program code that performs an operation that includes determining an initial musical preferences model describing acoustical characteristics of musical content by identifying user preferences. Additionally, the operation includes dividing the initial musical preferences model into a plurality of cluster models based on the identified user preferences, each of the plurality of cluster models representing a respective set of acoustical characteristics of musical content. One of the plurality of cluster models is selected. The operation further includes creating a playlist by selecting instances of available musical content for playback using the selected cluster model.Type: ApplicationFiled: January 5, 2015Publication date: July 7, 2016Inventor: Richard Allen Kreifeldt
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Publication number: 20160197967Abstract: One embodiment provides a non-transitory medium containing computer program code that performs an operation that includes retrieving, for each of two or more identified users, a respective musical preferences model representing a plurality of acoustical characteristics of musical content determined based on preferences of the respective user. Additionally, the operation includes generating a common musical preferences model representing a set of common acoustical characteristics of musical content for the two or more identified users, based on the musical preferences models for each of the two or more identified users. The operation also includes identifying a library of available musical content. Furthermore, the operation includes creating a playlist of two or more musical selections from the library of available musical content, based on the common musical preferences model.Type: ApplicationFiled: January 5, 2015Publication date: July 7, 2016Inventors: Richard Allen Kreifeldt, Michelle L. Avary
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Publication number: 20160195405Abstract: Various embodiments provide techniques for performing an operation that includes receiving a request specifying one or more geospatial commands. The operation further includes generating a navigation query based on the one or more geospatial commands and using a user-specific geospatial command model generated based on collected user behavior and feedback. The operation also includes executing the navigation query against a navigation database to determine route and destination information.Type: ApplicationFiled: December 23, 2015Publication date: July 7, 2016Inventor: Richard Allen Kreifeldt
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Publication number: 20150371628Abstract: One embodiment of the present disclosure sets forth an approach for performing speech recognition. A speech recognition system receives an electronic signal that represents human speech of a speaker. The speech recognition system converts the electronic signal into a plurality of phonemes. The speech recognition system, while converting the plurality of phonemes into a first group of words based on a first voice recognition model, encounters an error when attempting to convert one or more of the phonemes into words. The speech recognition system transmits a message associated with the error to a server machine. The speech recognition system causes the server machine to convert the one or more phonemes into a second group of words based on a second voice recognition model resident on the server machine. The speech recognition system receives the second group of words from the server machine.Type: ApplicationFiled: June 22, 2015Publication date: December 24, 2015Inventor: Richard Allen KREIFELDT
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Publication number: 20150358730Abstract: An audio processing system for a listening device includes an input device, a voice activity detector and a ratio-based attenuator. The input device is configured to receive a first audio signal emanating from an environment and including a signal of interest. The voice activity detector is configured to generate a control signal in response to the first audio signal. The ratio-based attenuator is configured to receive the control signal and determine whether the signal level of the first audio signal exceeds the signal level of an audio signal received from an audio playback device by at least a target difference. If so, then the audio level of the playback audio signal is maintained. Otherwise, the audio level of the playback audio signal is adjusted, where, at the adjusted value, the first signal level exceeds the playback signal level by at least the target difference.Type: ApplicationFiled: June 4, 2015Publication date: December 10, 2015Inventors: James M. Kirsch, Ajay Iyer, Richard Allen Kreifeldt
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Patent number: D795334Type: GrantFiled: January 18, 2016Date of Patent: August 22, 2017Inventors: Richard Allen Kreifeldt, Tyler Allan, Noel Larson