Patents by Inventor Toni Hirvonen
Toni Hirvonen 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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Publication number: 20240112592Abstract: A method in an apparatus, the method comprising receiving a set of learning targets based on a user selection; determining a user skill level by analyzing an input of a user performance of at least one musical piece; determining a difficulty level for each learning target of the set of learning targets; determining an effort parameter for each learning target of the set of learning targets based on the user skill level and/or the difficulty level of each learning target; arranging the set of learning targets based on the effort parameters; and providing a personalized curriculum based on the arranged set of learning targets.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Inventors: Christoph THÜR, Alicja JUNTUNEN, Anssi KLAPURI, Juhani SIMOLA, Marcelo RODRÍGUEZ, Toni HIRVONEN, Pyry NIKUNEN, Jarmo HIIPAKKA
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Publication number: 20240087584Abstract: An encoding system encodes an N-channel audio signal (X), wherein N?3, as a single-channel downmix signal (Y) together with dry and wet upmix parameters ({tilde over (C)}, {tilde over (P)}). In a decoding system, a decorrelating section outputs, based on the downmix signal, an (N?1)-channel decorrelated signal (Z); a dry upmix section maps the downmix signal linearly in accordance with dry upmix coefficients (C) determined based on the dry upmix parameters; a wet upmix section populates an intermediate matrix based on the wet upmix parameters and knowing that the intermediate matrix belongs to a predefined matrix class, obtains wet upmix coefficients (P) by multiplying the intermediate matrix by a predefined matrix, and maps the decorrelated signal linearly in accordance with the wet upmix coefficients; and a combining section combines outputs from the upmix sections to obtain a reconstructed signal ({circumflex over (X)}) corresponding to the signal to be reconstructed.Type: ApplicationFiled: September 25, 2023Publication date: March 14, 2024Applicant: DOLBY INTERNATIONAL ABInventors: Lars Villemoes, Heidi-Maria Lehtonen, Heiko Purnhagen, Toni Hirvonen
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Patent number: 11894003Abstract: Audio objects are associated with positional metadata. A received downmix signal comprises downmix channels that are linear combinations of one or more audio objects and are associated with respective positional locators. In a first aspect, the downmix signal, the positional metadata and frequency-dependent object gains are received. An audio object is reconstructed by applying the object gain to an upmix of the downmix signal in accordance with coefficients based on the positional metadata and the positional locators. In a second aspect, audio objects have been encoded together with at least one bed channel positioned at a positional locator of a corresponding downmix channel. The decoding system receives the downmix signal and the positional metadata of the audio objects. A bed channel is reconstructed by suppressing the content representing audio objects from the corresponding downmix channel on the basis of the positional locator of the corresponding downmix channel.Type: GrantFiled: February 10, 2023Date of Patent: February 6, 2024Assignee: DOLBY INTERNATIONAL ABInventors: Toni Hirvonen, Heiko Purnhagen, Leif Jonas Samuelsson, Lars Villemoes
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Patent number: 11769516Abstract: An encoding system encodes an N-channel audio signal (X), wherein N?3, as a single-channel downmix signal (Y) together with dry and wet upmix parameters ({tilde over (C)}, {tilde over (P)}). In a decoding system, a decorrelating section outputs, based on the downmix signal, an (N?1)-channel decorrelated signal (Z); a dry upmix section maps the downmix signal linearly in accordance with dry upmix coefficients (C) determined based on the dry upmix parameters; a wet upmix section populates an intermediate matrix based on the wet upmix parameters and knowing that the intermediate matrix belongs to a predefined matrix class, obtains wet upmix coefficients (P) by multiplying the intermediate matrix by a predefined matrix, and maps the decorrelated signal linearly in accordance with the wet upmix coefficients; and a combining section combines outputs from the upmix sections to obtain a reconstructed signal ({circumflex over (X)}) corresponding to the signal to be reconstructed.Type: GrantFiled: September 16, 2022Date of Patent: September 26, 2023Assignee: Dolby International ABInventors: Lars Villemoes, Heidi-Maria Lehtonen, Heiko Purnhagen, Toni Hirvonen
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Publication number: 20230290363Abstract: Exemplary embodiments provide encoding and decoding methods, and associated encoders and decoders, for encoding and decoding of an audio scene which is represented by one or more audio signals. The encoder generates a bit stream which comprises downmix signals and side information which includes individual matrix elements of a reconstruction matrix which enables reconstruction of the one or more audio signals in the decoder.Type: ApplicationFiled: May 15, 2023Publication date: September 14, 2023Applicant: Dolby International ABInventors: Heiko PURNHAGEN, Lars VILLEMOES, Leif Jonas SAMUELSSON, Toni HIRVONEN
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Publication number: 20230267939Abstract: Audio objects are associated with positional metadata. A received downmix signal comprises downmix channels that are linear combinations of one or more audio objects and are associated with respective positional locators. In a first aspect, the downmix signal, the positional metadata and frequency-dependent object gains are received. An audio object is reconstructed by applying the object gain to an upmix of the downmix signal in accordance with coefficients based on the positional metadata and the positional locators. In a second aspect, audio objects have been encoded together with at least one bed channel positioned at a positional locator of a corresponding downmix channel. The decoding system receives the downmix signal and the positional metadata of the audio objects. A bed channel is reconstructed by suppressing the content representing audio objects from the corresponding downmix channel on the basis of the positional locator of the corresponding downmix channel.Type: ApplicationFiled: February 10, 2023Publication date: August 24, 2023Applicant: DOLBY INTERNATIONAL ABInventors: Toni Hirvonen, Heiko Purnhagen, Leif Jonas Samuelsson, Lars Villemoes
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Patent number: 11705139Abstract: There is provided encoding and decoding methods for encoding and decoding of object based audio. An exemplary encoding method includes inter alia calculating M downmix signals by forming combinations of N audio objects, wherein M?N, and calculating parameters which allow reconstruction of a set of audio objects formed on basis of the N audio objects from the M downmix signals. The calculation of the M downmix signals is made according to a criterion which is independent of any loudspeaker configuration.Type: GrantFiled: March 7, 2022Date of Patent: July 18, 2023Assignee: Dolby International ABInventors: Heiko Purnhagen, Kristofer Kjoerling, Toni Hirvonen, Lars Villemoes, Dirk Jeroen Breebaart
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Patent number: 11682403Abstract: Exemplary embodiments provide encoding and decoding methods, and associated encoders and decoders, for encoding and decoding of an audio scene which is represented by one or more audio signals. The encoder generates a bit stream which comprises downmix signals and side information which includes individual matrix elements of a reconstruction matrix which enables reconstruction of the one or more audio signals in the decoder.Type: GrantFiled: April 19, 2022Date of Patent: June 20, 2023Assignee: DOLBY INTERNATIONAL ABInventors: Heiko Purnhagen, Lars Villemoes, Leif Jonas Samuelsson, Toni Hirvonen
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Publication number: 20230104408Abstract: An encoding system encodes an N-channel audio signal (X), wherein N?3, as a single-channel downmix signal (Y) together with dry and wet upmix parameters ({tilde over (C)}, {tilde over (P)}). In a decoding system, a decorrelating section outputs, based on the downmix signal, an (N?1)-channel decorrelated signal (Z); a dry upmix section maps the downmix signal linearly in accordance with dry upmix coefficients (C) determined based on the dry upmix parameters; a wet upmix section populates an intermediate matrix based on the wet upmix parameters and knowing that the intermediate matrix belongs to a predefined matrix class, obtains wet upmix coefficients (P) by multiplying the intermediate matrix by a predefined matrix, and maps the decorrelated signal linearly in accordance with the wet upmix coefficients; and a combining section combines outputs from the upmix sections to obtain a reconstructed signal ({circumflex over (X)}) corresponding to the signal to be reconstructed.Type: ApplicationFiled: September 16, 2022Publication date: April 6, 2023Applicant: Dolby International ABInventors: Lars VILLEMOES, Heidi-Maria LEHTONEN, Heiko PURNHAGEN, Toni HIRVONEN
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Patent number: 11580995Abstract: Audio objects are associated with positional metadata. A received downmix signal comprises downmix channels that are linear combinations of one or more audio objects and are associated with respective positional locators. In a first aspect, the downmix signal, the positional metadata and frequency-dependent object gains are received. An audio object is reconstructed by applying the object gain to an upmix of the downmix signal in accordance with coefficients based on the positional metadata and the positional locators. In a second aspect, audio objects have been encoded together with at least one bed channel positioned at a positional locator of a corresponding downmix channel. The decoding system receives the downmix signal and the positional metadata of the audio objects. A bed channel is reconstructed by suppressing the content representing audio objects from the corresponding downmix channel on the basis of the positional locator of the corresponding downmix channel.Type: GrantFiled: April 1, 2021Date of Patent: February 14, 2023Assignee: Dolby International ABInventors: Toni Hirvonen, Heiko Purnhagen, Leif Jonas Samuelsson, Lars Villemoes
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Publication number: 20220310102Abstract: Exemplary embodiments provide encoding and decoding methods, and associated encoders and decoders, for encoding and decoding of an audio scene which is represented by one or more audio signals. The encoder generates a bit stream which comprises downmix signals and side information which includes individual matrix elements of a reconstruction matrix which enables reconstruction of the one or more audio signals in the decoder.Type: ApplicationFiled: April 19, 2022Publication date: September 29, 2022Applicant: Dolby International ABInventors: Heiko PURNHAGEN, Lars VILLEMOES, Leif Jonas SAMUELSSON, Toni HIRVONEN
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Publication number: 20220297977Abstract: An elevator safety system includes an electronic safety controller running a software including a monitoring mode for monitoring the position of an elevator car within a hoistway. The system includes a position measurement device for measuring the elevator car position. There are limit position identification markers being installed in the hoistway for defining a starting point of a final movement zone in which the car is still allowed to run in a direction to the outermost ends of the hoistway. However, as soon as the end of the final limit zone is reached by the car, an emergency stop is triggered. The position data for the final limit zone are laid down in a memory of the safety controller as parametrized data for being able to adjust them if so needed. Therewith, it can be avoided that the hardware components in the shaft have to be replaced.Type: ApplicationFiled: June 7, 2022Publication date: September 22, 2022Applicant: KONE CorporationInventors: Ari JUSSILA, Atso KOSKINEN, Tommi VAINIO, Toni HIRVONEN
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Patent number: 11450330Abstract: An encoding system encodes an N-channel audio signal (X), wherein N?3, as a single-channel downmix signal (Y) together with dry and wet upmix parameters ({tilde over (C)}, {tilde over (P)}). In a decoding system, a decorrelating section outputs, based on the downmix signal, an (N?1)-channel decorrelated signal (Z); a dry upmix section maps the downmix signal linearly in accordance with dry upmix coefficients (C) determined based on the dry upmix parameters; a wet upmix section populates an intermediate matrix based on the wet upmix parameters and knowing that the intermediate matrix belongs to a predefined matrix class, obtains wet upmix coefficients (P) by multiplying the intermediate matrix by a predefined matrix, and maps the decorrelated signal linearly in accordance with the wet upmix coefficients; and a combining section combines outputs from the upmix sections to obtain a reconstructed signal ({circumflex over (X)}) corresponding to the signal to be reconstructed.Type: GrantFiled: April 7, 2020Date of Patent: September 20, 2022Assignee: DOLBY INTERNATIONAL ABInventors: Lars Villemoes, Heidi-Maria Lehtonen, Heiko Purnhagen, Toni Hirvonen
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Publication number: 20220189493Abstract: There is provided encoding and decoding methods for encoding and decoding of object based audio. An exemplary encoding method includes inter alia calculating M downmix signals by forming combinations of N audio objects, wherein M?N, and calculating parameters which allow reconstruction of a set of audio objects formed on basis of the N audio objects from the M downmix signals. The calculation of the M downmix signals is made according to a criterion which is independent of any loudspeaker configuration.Type: ApplicationFiled: March 7, 2022Publication date: June 16, 2022Applicant: DOLBY INTERNATIONAL ABInventors: Heiko PURNHAGEN, Kristofer KJOERLING, Toni HIRVONEN, Lars VILLEMOES, Dirk Jeroen BREEBAART
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Patent number: 11315577Abstract: Exemplary embodiments provide encoding and decoding methods, and associated encoders and decoders, for encoding and decoding of an audio scene which is represented by one or more audio signals. The encoder generates a bit stream which comprises downmix signals and side information which includes individual matrix elements of a reconstruction matrix which enables reconstruction of the one or more audio signals in the decoder.Type: GrantFiled: July 24, 2020Date of Patent: April 26, 2022Assignee: Dolby International ABInventors: Heiko Purnhagen, Lars Villemoes, Leif Jonas Samuelsson, Toni Hirvonen
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Patent number: 11270709Abstract: There is provided encoding and decoding methods for encoding and decoding of object based audio. An exemplary encoding method includes inter alia calculating M downmix signals by forming combinations of N audio objects, wherein M?N, and calculating parameters which allow reconstruction of a set of audio objects formed on basis of the N audio objects from the M downmix signals. The calculation of the M downmix signals is made according to a criterion which is independent of any loudspeaker configuration.Type: GrantFiled: November 22, 2017Date of Patent: March 8, 2022Assignee: Dolby International ABInventors: Heiko Purnhagen, Kristofer Kjoerling, Toni Hirvonen, Lars Villemoes, Dirk Jeroen Breebaart
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Patent number: 11195511Abstract: Described herein is a method for creating object-based audio content from a text input for use in audio books and/or audio play, the method including the steps of: a) receiving the text input; b) performing a semantic analysis of the received text input; c) synthesizing speech and effects based on one or more results of the semantic analysis to generate one or more audio objects; d) generating metadata for the one or more audio objects; and e) creating the object-based audio content including the one or more audio objects and the metadata. Described herein are further a computer-based system including one or more processors configured to perform said method and a computer program product comprising a computer-readable storage medium with instructions adapted to carry out said method when executed by a device having processing capability.Type: GrantFiled: July 17, 2019Date of Patent: December 7, 2021Assignees: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Toni Hirvonen, Daniel Arteaga, Eduard Aylon Pla, Alex Cabrer Manning, Lie Lu, Karl Jonas Roeden
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Publication number: 20210295820Abstract: Described herein is a method for creating object-based audio content from a text input for use in audio books and/or audio play, the method including the steps of: a) receiving the text input; b) performing a semantic analysis of the received text input; c) synthesizing speech and effects based on one or more results of the semantic analysis to generate one or more audio objects; d) generating metadata for the one or more audio objects; and e) creating the object-based audio content including the one or more audio objects and the metadata. Described herein are further a computer-based system including one or more processors configured to perform said method and a computer program product comprising a computer-readable storage medium with instructions adapted to carry out said method when executed by a device having processing capability.Type: ApplicationFiled: July 17, 2019Publication date: September 23, 2021Applicants: DOLBY INTERNATIONAL AB, DOLBY LABORATORIES LICENSING CORPORATIONInventors: Toni Hirvonen, Daniel Arteaga, Eduard Aylon Pla, Alex Cabrer Manning, Lie Lu, Karl Jonas Roeden
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Publication number: 20210287684Abstract: Audio objects are associated with positional metadata. A received downmix signal comprises downmix channels that are linear combinations of one or more audio objects and are associated with respective positional locators. In a first aspect, the downmix signal, the positional metadata and frequency-dependent object gains are received. An audio object is reconstructed by applying the object gain to an upmix of the downmix signal in accordance with coefficients based on the positional metadata and the positional locators. In a second aspect, audio objects have been encoded together with at least one bed channel positioned at a positional locator of a corresponding downmix channel. The decoding system receives the downmix signal and the positional metadata of the audio objects. A bed channel is reconstructed by suppressing the content representing audio objects from the corresponding downmix channel on the basis of the positional locator of the corresponding downmix channel.Type: ApplicationFiled: April 1, 2021Publication date: September 16, 2021Applicant: DOLBY INTERNATIONAL ABInventors: Toni Hirvonen, Heiko Purnhagen, Leif Jonas Samuelsson, Lars Villemoes
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Publication number: 20210284487Abstract: Devices, methods and computer programs for monitoring, processing and/or adjusting of elevator emergency stopping events are disclosed. At least some of the disclosed embodiments allow measuring automatically the performance of an elevator emergency stopping event protection function, and the invention can be utilized together with manual checks for adjusting parametrization of the elevator emergency stopping event protection function. The invention further allows separate safety parameters for up and down direction. Measurements can be done separately to both directions and related safety parameters can be adjusted based on those.Type: ApplicationFiled: February 17, 2021Publication date: September 16, 2021Applicant: Kone CorporationInventors: Ari JUSSILA, Toni HIRVONEN