Patents by Inventor Gustaf Ullberg
Gustaf Ullberg 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: 11990147Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: GrantFiled: December 21, 2020Date of Patent: May 21, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Gustaf Ullberg, Manuel Briand, Anisse Taleb
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Publication number: 20240119951Abstract: A transient detector analyzes a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals the determined transient hangover indicator to an associated audio encoder to enable proper encoding of the following frame n+1.Type: ApplicationFiled: October 17, 2023Publication date: April 11, 2024Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Anisse TALEB, Gustaf ULLBERG
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Patent number: 11830506Abstract: A transient detector analyzes a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals the determined transient hangover indicator to an associated audio encoder to enable proper encoding of the following frame n+1.Type: GrantFiled: April 17, 2019Date of Patent: November 28, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Anisse Taleb, Gustaf Ullberg
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Publication number: 20210110836Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Gustaf ULLBERG, Manuel BRIAND, Anisse TALEB
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Patent number: 10878829Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: GrantFiled: December 21, 2018Date of Patent: December 29, 2020Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Gustaf Ullberg, Manuel Briand, Anisse Taleb
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Publication number: 20190244625Abstract: A transient detector analyzes a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals the determined transient hangover indicator to an associated audio encoder to enable proper encoding of the following frame n+1.Type: ApplicationFiled: April 17, 2019Publication date: August 8, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Anisse TALEB, Gustaf ULLBERG
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Patent number: 10311883Abstract: A transient detector (100) analyzes (110) a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals (120) the determined transient hangover indicator to an associated audio encoder (10) to enable proper encoding of the following frame n+1.Type: GrantFiled: October 18, 2016Date of Patent: June 4, 2019Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Anisse Taleb, Gustaf Ullberg
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Publication number: 20190122680Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: ApplicationFiled: December 21, 2018Publication date: April 25, 2019Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Gustaf Ullberg, Manuel Briand, Anisse Taleb
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Patent number: 10199049Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: GrantFiled: June 30, 2017Date of Patent: February 5, 2019Assignee: Telefonaktiebolaget LM EricssonInventors: Gustaf Ullberg, Manuel Briand, Anisse Taleb
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Publication number: 20170301358Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: ApplicationFiled: June 30, 2017Publication date: October 19, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Gustaf ULLBERG, Manuel BRIAND, Anisse TALEB
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Patent number: 9711154Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: GrantFiled: December 1, 2015Date of Patent: July 18, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Gustaf Ullberg, Manuel Briand, Anisse Taleb
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Publication number: 20170040024Abstract: A transient detector (100) analyzes (110) a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals (120) the determined transient hangover indicator to an associated audio encoder (10) to enable proper encoding of the following frame n+1.Type: ApplicationFiled: October 18, 2016Publication date: February 9, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Anisse TALEB, Gustaf ULLBERG
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Patent number: 9495971Abstract: A transient detector (100) analyzes (110) a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals (120) the determined transient hangover indicator to an associated audio encoder (10) to enable proper encoding of the following frame n+1.Type: GrantFiled: August 25, 2008Date of Patent: November 15, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Gustaf Ullberg, Anisse Taleb
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Publication number: 20160086614Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining of an initial set of spectral coefficients representing the audio signal, and determining a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled and the initial set of spectral coefficients are bandwidth extended above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: ApplicationFiled: December 1, 2015Publication date: March 24, 2016Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Gustaf ULLBERG, Manuel Briand, Anisse Taleb
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Patent number: 9269372Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining (210) of an initial set of spectral coefficients representing the audio signal, and determining (212) a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled (214) and the initial set of spectral coefficients are bandwidth extended (216) above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: GrantFiled: August 26, 2008Date of Patent: February 23, 2016Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Gustaf Ullberg, Anisse Taleb, Manuel Briand
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Patent number: 9111532Abstract: A method for perceptual spectral decoding includes decoding of spectral coefficients recovered from a binary flux into decoded spectral coefficients of an initial set of spectral coefficients. The initial set of spectral coefficients are spectrum filled. The spectrum filling includes noise filling of spectral holes by setting spectral coefficients in the initial set of spectral coefficients not being decoded from the binary flux equal to elements derived from the decoded spectral coefficients. The set of reconstructed spectral coefficients of a frequency domain formed by the spectrum filling is converted into an audio signal of a time domain.Type: GrantFiled: January 31, 2013Date of Patent: August 18, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Anisse Taleb, Manuel Briand, Gustaf Ullberg
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Patent number: 8370133Abstract: A method for perceptual spectral decoding comprises decoding of spectral coefficients recovered from a binary flux into decoded spectral coefficients of an initial set of spectral coefficients. The initial set of spectral coefficients are spectrum filled. The spectrum filling comprises noise filling of spectral holes by setting spectral coefficients in the initial set of spectral coefficients not being decoded from the binary flux equal to elements derived from the decoded spectral coefficients. The set of reconstructed spectral coefficients of a frequency domain formed by the spectrum filling is converted into an audio signal of a time domain. A perceptual spectral decoder comprises a noise filler, operating according to the method for perceptual spectral decoding.Type: GrantFiled: August 26, 2008Date of Patent: February 5, 2013Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Anisse Taleb, Manuel Briand, Gustaf Ullberg
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Publication number: 20110264454Abstract: A method for spectrum recovery in spectral decoding of an audio signal, comprises obtaining (210) of an initial set of spectral coefficients representing the audio signal, and determining (212) a transition frequency. The transition frequency is adapted to a spectral content of the audio signal. Spectral holes in the initial set of spectral coefficients below the transition frequency are noise filled (214) and the initial set of spectral coefficients are bandwidth extended (216) above the transition frequency. Decoders and encoders being arranged for performing part of or the entire method are also illustrated.Type: ApplicationFiled: August 26, 2008Publication date: October 27, 2011Applicant: Telefonaktiebolaget LM EricssonInventors: Gustaf Ullberg, Anisse Taleb, Manuel Briand
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Publication number: 20110046965Abstract: A transient detector (100) analyzes (110) a given frame n of the input audio signal to determine, based on audio signal characteristics of the given frame n, a transient hangover indicator for a following frame n+1, and signals (120) the determined transient hangover indicator to an associated audio encoder (10) to enable proper encoding of the following frame n+1.Type: ApplicationFiled: August 25, 2008Publication date: February 24, 2011Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Anisse Taleb, Gustaf Ullberg
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Publication number: 20100241437Abstract: A method for perceptual spectral decoding comprises decoding of spectral coefficients recovered from a binary flux into decoded spectral coefficients of an initial set of spectral coefficients. The initial set of spectral coefficients are spectrum filled. The spectrum filling comprises noise filling of spectral holes by setting spectral coefficients in the initial set of spectral coefficients not being decoded from the binary flux equal to elements derived from the decoded spectral coefficients. The set of reconstructed spectral coefficients of a frequency domain formed by the spectrum filling is converted into an audio signal of a time domain. A perceptual spectral decoder comprises a noise filler, operating according to the method for perceptual spectral decoding.Type: ApplicationFiled: August 26, 2008Publication date: September 23, 2010Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Anisse Taleb, Manuel Briand, Gustaf Ullberg