Patents by Inventor Pasi Liimatainen
Pasi Liimatainen 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: 20240196159Abstract: An apparatus for processing at least one immersive audio signal, the immersive audio signal including at least one audio signal associated with a sound source, at least one sound source parameter defining the sound source and at least one scene parameter for acoustically defining a scene within which the sound source is located, the apparatus including circuitry configured to: obtain the audio signal associated with the sound source; obtain the sound source parameter defining the sound source; obtain the scene parameter for acoustically defining the scene within which the sound source is located; determine information, for the sound source, about a propagation delay; and process the audio signal based on the information, wherein the circuitry configured to process the audio signal is configured to: determine at least one early reverberation parameter; and render the audio signal based on the early reverberation parameter.Type: ApplicationFiled: April 1, 2022Publication date: June 13, 2024Inventors: Antti Johannes Eronen, Jussi Artturi LEPPANEN, Mikko GYNTHER, Pasi LIIMATAINEN
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Patent number: 11688385Abstract: A method and apparatus for simulating reverberation in rendering systems. A decoder/renderer may determine how to simulate reverberation with reference to audio scene description format file information or other bitstream information regarding the virtual scene geometry, and/or a lookup table. Late reverberation may be generated based on reverberator parameters derived from the virtual scene geometry, including the lengths of delay lines, attenuation filter coefficients, and diffuse-to-direct ratio characteristics, using a feedback delay network. Early reverberation may be generated based on determining what potential reflecting elements in a virtual scene geometry are reflecting planes; this may involve the simulation of ray reflection, potentially through beam tracing.Type: GrantFiled: March 16, 2021Date of Patent: June 27, 2023Assignee: Nokia Technologies OyInventors: Antti Eronen, Sujeet Mate, Jussi Leppanen, Pasi Liimatainen
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Publication number: 20230179947Abstract: An apparatus for assisting spatial rendering for room acoustics, the apparatus including means configured to: obtain directivity data having an identifier, wherein the directivity data includes data for at least two separate directions; obtain at least one room parameter; determine information associated with the directivity data; determine gain data based on the determined information; determine averaged gain data based on the gain data; and generate a bitstream defining a rendering, the bitstream including the averaged gain data and the at least one room parameter such that at least one audio signal associated with the identifier is configured to be rendered based on the at least one room parameter and the determined averaged gain data.Type: ApplicationFiled: December 1, 2022Publication date: June 8, 2023Inventors: Antti Johannes ERONEN, Sujeet Shyamsundar MATE, Pasi LIIMATAINEN, Archontis POLITIS, Jaakko Valdemar HYRY, Mikko-Ville LAITINEN
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Publication number: 20210287651Abstract: A method and apparatus for simulating reverberation in rendering systems. A decoder/renderer may determine how to simulate reverberation with reference to audio scene description format file information or other bitstream information regarding the virtual scene geometry, and/or a lookup table. Late reverberation may be generated based on reverberator parameters derived from the virtual scene geometry, including the lengths of delay lines, attenuation filter coefficients, and diffuse-to-direct ratio characteristics, using a feedback delay network. Early reverberation may be generated based on determining what potential reflecting elements in a virtual scene geometry are reflecting planes; this may involve the simulation of ray reflection, potentially through beam tracing.Type: ApplicationFiled: March 16, 2021Publication date: September 16, 2021Inventors: Antti ERONEN, Sujeet Mate, Jussi Leppanen, Pasi Liimatainen
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Patent number: 8054811Abstract: In a packet data transmission and reception system, a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure, which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: GrantFiled: May 15, 2008Date of Patent: November 8, 2011Assignee: Nokia CorporationInventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
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Publication number: 20080219198Abstract: In a packet data transmission and reception system, a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure, which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: ApplicationFiled: May 15, 2008Publication date: September 11, 2008Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
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Patent number: 7376110Abstract: In a packet data transmission and reception system, a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure, which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: GrantFiled: May 21, 2003Date of Patent: May 20, 2008Assignee: Nokia CorporationInventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
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Publication number: 20030210674Abstract: In a packet data transmission and reception system, a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure, which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: ApplicationFiled: May 21, 2003Publication date: November 13, 2003Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
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Patent number: 6584089Abstract: In a packet data transmission and reception system a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: GrantFiled: February 22, 1999Date of Patent: June 24, 2003Assignee: Nokia Mobile Phones Ltd.Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
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Patent number: 6094426Abstract: In a packet data transmission and reception system a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: GrantFiled: February 22, 1999Date of Patent: July 25, 2000Assignee: Nokia Mobile Phones LimitedInventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
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Patent number: 6091717Abstract: In a packet data transmission and reception system a media access control (MAC) message is broadcast by a base station to a plurality of mobile stations. The MAC message contains packet data transmission scheduling information which allows the base station to preemptively control mobile station access to traffic channels in order to maximize the efficiency of packet data transmissions and allow scheduling consideration including priority access, quality of service and maximum bytes per transfer. The MAC message consists of a control frame structure which comprises scheduling parameters including MAC IDs fields, activity fields, and a field representing the number of free traffic channels in a cell. These parameters enable multiple mobile stations to share, in a time multiplexed fashion, traffic channels for packet data transmission on CDMA based mobile communication systems.Type: GrantFiled: May 5, 1997Date of Patent: July 18, 2000Assignee: Nokia Mobile Phones LimitedInventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman