Patents Assigned to IMMERSION NETWORKS, INC.
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Patent number: 12080303Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: GrantFiled: November 20, 2023Date of Patent: September 3, 2024Assignee: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Publication number: 20240087583Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: ApplicationFiled: November 20, 2023Publication date: March 14, 2024Applicant: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Patent number: 11823691Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: GrantFiled: January 23, 2023Date of Patent: November 21, 2023Assignee: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Publication number: 20230359293Abstract: The present invention provides a method that comprises accepting a plurality of positional data with corresponding times of the motion, determining one or more continuous positional functions that together represent an approximation of path of the positional data, and determining, for each positional function, one or more time functions that together represent an approximation of the times for the positional data corresponding to the positional functions. The present invention provides an apparatus that comprises an input device and a computer system configured to accept the motion signals generated by the input device, determine one or more continuous positional functions that together represent an approximation of the path of the positional data, and determine, for each positional function, one or more time functions that together represent an approximation of the times for the positional data corresponding to the positional functions.Type: ApplicationFiled: May 19, 2023Publication date: November 9, 2023Applicant: IMMERSION NETWORKS, INC.Inventor: Joshua Jersild
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Publication number: 20230213342Abstract: A method for stabilizing a magnetic field of an inertial measurement unit (IMU), is provided that includes initializing accelerometer and gyroscope (AG) heading data for the IMU and initializing accelerometer, gyroscope and magnetometer (AGM) heading data for the IMU. Determining whether a tracking state exists and completing processing of the AG heading data and the AGM heading data if the tracking state does not exist. Calculating a magnetic field error if the tracking state exists.Type: ApplicationFiled: March 13, 2023Publication date: July 6, 2023Applicant: IMMERSION NETWORKS, INC.Inventor: Michael J. Felice
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Patent number: 11687176Abstract: The present invention provides a method and apparatus that are directed to accepting a plurality of positional data with corresponding times of the motion, determining one or more continuous positional functions that together represent an approximation of path of the positional data, and determining, for each positional function, one or more time functions that together represent an approximation of the times for the positional data corresponding to the positional functions.Type: GrantFiled: March 10, 2022Date of Patent: June 27, 2023Assignee: IMMERSION NETWORKS, INC.Inventor: Joshua Jersild
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Patent number: 11562758Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: GrantFiled: March 29, 2022Date of Patent: January 24, 2023Assignee: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Publication number: 20220223164Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Applicant: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Patent number: 11380343Abstract: A method for encoding an audio signal, comprising using one or more algorithms operating on a processor to filter the audio signal into two output signals, wherein each output signal has a sampling rate that is equal to a sampling rate of the audio signal, and wherein one of the output signals includes high frequency data. Using one or more algorithms operating on the processor to window the high frequency data by selecting a set of the high frequency data. Using one or more algorithms operating on the processor to determine a set of linear predictive coding (LPC) coefficients for the windowed data. Using one or more algorithms operating on the processor to generate energy scale values for the windowed data. Using one or more algorithms operating on the processor to generate an encoded high frequency bitstream.Type: GrantFiled: September 12, 2019Date of Patent: July 5, 2022Assignee: IMMERSION NETWORKS, INC.Inventors: James David Johnston, King Wei Hor
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Publication number: 20220197404Abstract: Methods and apparatuses that accept user input of motion and produce a representation of the motion smoothly and compactly. The present invention provides a method that comprises accepting a plurality of positional data with corresponding times of the motion, determining one or more continuous positional functions that together represent an approximation of path of the positional data, and determining, for each positional function, one or more time functions that together represent an approximation of the times for the positional data corresponding to the positional functions.Type: ApplicationFiled: March 10, 2022Publication date: June 23, 2022Applicant: IMMERSION NETWORKS, INC.Inventor: Joshua Jersild
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Patent number: 11289108Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: GrantFiled: December 7, 2020Date of Patent: March 29, 2022Assignee: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Patent number: 11281312Abstract: The present invention provides a method that includes accepting a plurality of positional data with corresponding times of the motion, determining one or more continuous positional functions that together represent an approximation of path of the positional data, and determining, for each positional function, one or more time functions that together represent an approximation of the times for the positional data corresponding to the positional functions.Type: GrantFiled: January 7, 2019Date of Patent: March 22, 2022Assignee: IMMERSION NETWORKS, INC.Inventor: Joshua Jersild
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Publication number: 20210090585Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: ApplicationFiled: December 7, 2020Publication date: March 25, 2021Applicant: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Publication number: 20210082448Abstract: A method for encoding an audio signal, comprising using one or more algorithms operating on a processor to filter the audio signal into two output signals, wherein each output signal has a sampling rate that is equal to a sampling rate of the audio signal, and wherein one of the output signals includes high frequency data. Using one or more algorithms operating on the processor to window the high frequency data by selecting a set of the high frequency data. Using one or more algorithms operating on the processor to determine a set of linear predictive coding (LPC) coefficients for the windowed data. Using one or more algorithms operating on the processor to generate energy scale values for the windowed data. Using one or more algorithms operating on the processor to generate an encoded high frequency bitstream.Type: ApplicationFiled: September 12, 2019Publication date: March 18, 2021Applicant: IMMERSION NETWORKS, INC.Inventors: James David Johnston, King Wei Hor
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Publication number: 20200387235Abstract: Methods and apparatuses that accept user input of motion and produce a representation of the motion smoothly and compactly. The present invention provides a method that comprises accepting a plurality of positional data with corresponding times of the motion, determining one or more continuous positional functions that together represent an approximation of path of the positional data, and determining, for each positional function, one or more time functions that together represent an approximation of the times for the positional data corresponding to the positional functions.Type: ApplicationFiled: January 7, 2019Publication date: December 10, 2020Applicant: IMMERSION NETWORKS, INC.Inventor: Joshua Jersild
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Patent number: 10861474Abstract: An encoder operable to filter audio signals into a plurality of frequency band components, generate quantized digital components for each band, identify a potential for pre-echo events within the generated quantized digital components, generate an approximate signal by decoding the quantized digital components using inverse pulse code modulation, generate an error signal by comparing the approximate signal with the sampled audio signal, and process the error signal and quantized digital components. The encoder operable to process the error signal by processing delayed audio signals and Q band values, determining the potential for pre-echo events from the Q band values, and determining scale factors and MDCT block sizes for the potential for pre-echo events.Type: GrantFiled: May 28, 2019Date of Patent: December 8, 2020Assignee: IMMERSION NETWORKS, INC.Inventors: James David Johnston, Stephen Daniel White, King Wei Hor, Barry M. Genova
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Patent number: 10770088Abstract: A decoder generates decoded signals based on quantized signals. The decoder includes an inverse quantizer and a predictor circuit. The quantized signals are generated in an encoder by low-pass filtering an input signal and encoding the filtered signal using adaptive differential pulse code modulation. The predictor circuit has filter coefficients based on a frequency response of the low-pass filter used to filter the input signal.Type: GrantFiled: May 10, 2016Date of Patent: September 8, 2020Assignee: IMMERSION NETWORKS, INC.Inventors: James D. Johnston, Stephen White
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Patent number: 10756755Abstract: An encoder generates quantized signal words based on a difference signal. The encoder includes an adaptive quantizer. A step size applied by the adaptive quantizer is generated in a feedback loop and based on a loading factor and quantized signal words generated by the adaptive quantizer. The encoder includes coding circuitry which generates code words based on quantized signal words generated by the adaptive quantizer. The coding circuitry generates an escape code in response to a quantized signal word not being associated with a corresponding coding code word.Type: GrantFiled: May 10, 2016Date of Patent: August 25, 2020Assignee: IMMERSION NETWORKS, INC.Inventors: James D. Johnston, Stephen White
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Patent number: 10699725Abstract: An encoder includes a low-pass filter to filter input audio signals. The low-pass filter has fixed filter coefficients. The encoder generates quantized signals based on a difference signal. The encoder includes an adaptive quantizer and a decoder to generate feedback signals. The decoder has an inverse quantizer and a predictor. The predictor has fixed control parameters which are based on a frequency response of the low-pass filter. The predictor may include a finite impulse response filter having fixed filter coefficients. The decoder may include an adaptive noise shaping filter coupled between the low-pass filter and the encoder. The adaptive noise shaping filter flattens signals within a frequency spectrum corresponding to a frequency spectrum of the low-pass filter.Type: GrantFiled: May 10, 2016Date of Patent: June 30, 2020Assignee: IMMERSION NETWORKS, INC.Inventors: James D. Johnston, Stephen White
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Patent number: 10670405Abstract: A system, comprising a clock generating a timing signal, a magnetometer coupled to the clock and configured to receive the timing signal and to generate first heading data and a gyroscope coupled to the clock and configured to receive the timing signal and to generate second heading data. The system further includes a first adder coupled to the magnetometer and gyroscope and configured to determine a difference signal as a function of the first heading data and the second heading data and a constrain data system coupled to the first adder and configured to apply a limit to the difference signal. A combine delta system is coupled to the constrain data system and configured to combine two or more of the constrained data values to generate a combined delta signal, and a second adder coupled to the gyroscope and the combine delta system and configured to add the combined delta signal to the second heading data.Type: GrantFiled: September 27, 2018Date of Patent: June 2, 2020Assignee: IMMERSION NETWORKS, INC.Inventor: Michael Felice