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).

  • Publication number: 20240196159
    Abstract: 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: Application
    Filed: April 1, 2022
    Publication date: June 13, 2024
    Inventors: Antti Johannes Eronen, Jussi Artturi LEPPANEN, Mikko GYNTHER, Pasi LIIMATAINEN
  • Patent number: 11688385
    Abstract: 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: Grant
    Filed: March 16, 2021
    Date of Patent: June 27, 2023
    Assignee: Nokia Technologies Oy
    Inventors: Antti Eronen, Sujeet Mate, Jussi Leppanen, Pasi Liimatainen
  • Publication number: 20230179947
    Abstract: 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: Application
    Filed: December 1, 2022
    Publication date: June 8, 2023
    Inventors: Antti Johannes ERONEN, Sujeet Shyamsundar MATE, Pasi LIIMATAINEN, Archontis POLITIS, Jaakko Valdemar HYRY, Mikko-Ville LAITINEN
  • Publication number: 20210287651
    Abstract: 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: Application
    Filed: March 16, 2021
    Publication date: September 16, 2021
    Inventors: Antti ERONEN, Sujeet Mate, Jussi Leppanen, Pasi Liimatainen
  • Patent number: 8054811
    Abstract: 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: Grant
    Filed: May 15, 2008
    Date of Patent: November 8, 2011
    Assignee: Nokia Corporation
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
  • Publication number: 20080219198
    Abstract: 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: Application
    Filed: May 15, 2008
    Publication date: September 11, 2008
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
  • Patent number: 7376110
    Abstract: 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: Grant
    Filed: May 21, 2003
    Date of Patent: May 20, 2008
    Assignee: Nokia Corporation
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
  • Publication number: 20030210674
    Abstract: 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: Application
    Filed: May 21, 2003
    Publication date: November 13, 2003
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
  • Patent number: 6584089
    Abstract: 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: Grant
    Filed: February 22, 1999
    Date of Patent: June 24, 2003
    Assignee: Nokia Mobile Phones Ltd.
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
  • Patent number: 6094426
    Abstract: 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: Grant
    Filed: February 22, 1999
    Date of Patent: July 25, 2000
    Assignee: Nokia Mobile Phones Limited
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman
  • Patent number: 6091717
    Abstract: 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: Grant
    Filed: May 5, 1997
    Date of Patent: July 18, 2000
    Assignee: Nokia Mobile Phones Limited
    Inventors: Zhi-Chun Honkasalo, Pasi Liimatainen, Sona Kapadia, John Noneman