Patents by Inventor Stefan Abeling

Stefan Abeling 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: 20190281400
    Abstract: The encoding and decoding of HOA signals using Singular Value Decomposition includes forming based on sound source direction values and an Ambisonics order corresponding ket vectors (|Y(?s)) of spherical harmonics and an encoder mode matrix (?O×S). From the audio input signal (|x(?s)) a singular threshold value (?s) determined. On the encoder mode matrix a Singular Value Decomposition is carried out in order to get related singular values which are compared with the threshold value, leading to a final encoder mode matrix rank (rfine). Based on direction values (?l) of loudspeakers and a decoder Ambisonics order (Nl), corresponding ket vectors (|Y(?l)) and a decoder mode matrix (?O×L) are formed. On the decoder mode matrix a Singular Value Decomposition is carried out, providing a final decoder mode matrix rank (rfind).
    Type: Application
    Filed: March 14, 2019
    Publication date: September 12, 2019
    Applicant: DOLBY INTERNATIONAL AB
    Inventors: Holger KROPP, Stefan ABELING
  • Patent number: 10341802
    Abstract: Currently there is no simple and satisfying way to create 3D audio from existing 2D content. The conversion from 2D to 3D sound should spatially redistribute the sound from existing channels. From a multi-channel 2D audio input signal (x(k)(t)) a 3D sound representation is generated which includes an HOA representation Formula (I) and channel object signals Formula (II) scaled from channels of the 2D audio input signal. Additional signals Formula (III) placed in the 3D space are generated by scaling (21, 222; 41, 422; Formula (IV)) channels from the 2D audio input signal and by decorrelating (24, 25; 44, 45, 451; Formula (V)) a scaled version of a mix of channels from the 2D audio input signal, whereby spatial positions for the additional signals are predetermined. The additional signals Formula (III) are converted (27; 47) to a HOA representation Formula (I).
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: July 2, 2019
    Assignee: Dolby Laboratories Licensing Corporation
    Inventors: Alexander Krueger, Johannes Boehm, Sven Kordon, Xiaoming Chen, Stefan Abeling, Florian Keiler, Holger Kropp
  • Patent number: 10244339
    Abstract: The encoding and decoding of HOA signals using Singular Value Decomposition includes forming based on sound source direction values and an Ambisonics order corresponding ket vectors (|Y(?s)) of spherical harmonics and an encoder mode matrix (?O×S). From the audio input signal (|x(?s)) a singular threshold value (?S) determined. On the encoder mode matrix a Singular Value Decomposition is carried out in order to get related singular values which are compared with the threshold value, leading to a final encoder mode matrix rank (rfins). Based on direction values (?l) of loudspeakers and a decoder Ambisonics order (Nl), corresponding ket vectors (|Y(?l)) and a decoder mode matrix (?O×L) are formed. On the decoder mode matrix a Singular Value Decomposition is carried out, providing a final decoder mode matrix rank (rfind).
    Type: Grant
    Filed: August 14, 2017
    Date of Patent: March 26, 2019
    Assignee: Dolby International AB
    Inventors: Holger Kropp, Stefan Abeling
  • Publication number: 20190069115
    Abstract: Currently there is no simple and satisfying way to create 3D audio from existing 2D content. The conversion from 2D to 3D sound should spatially redistribute the sound from existing channels. From a multi-channel 2D audio input signal (x(k)(t)) a 3D sound representation is generated which includes an HOA representation Formula (I) and channel object signals Formula (II) scaled from channels of the 2D audio input signal. Additional signals Formula (III) placed in the 3D space are generated by scaling (21, 222; 41, 422; Formula (IV)) channels from the 2D audio input signal and by decorrelating (24, 25; 44, 45, 451; Formula (V)) a scaled version of a mix of channels from the 2D audio input signal, whereby spatial positions for the additional signals are predetermined. The additional signals Formula (III) are converted (27; 47) to a HOA representation Formula (I).
    Type: Application
    Filed: November 11, 2016
    Publication date: February 28, 2019
    Applicant: DOLBY INTERNATIONAL AB
    Inventors: Alexander KRUEGER, Johannes BOEHM, Sven KORDON, Xiaoming CHEN, Stefan ABELING, Florian KEILER, Holger KROPP
  • Publication number: 20170374485
    Abstract: The encoding and decoding of HOA signals using Singular Value Decomposition includes forming based on sound source direction values and an Ambisonics order corresponding ket vectors (|Y(?s)) of spherical harmonics and an encoder mode matrix (?O×S). From the audio input signal (|x(?s)) a singular threshold value (?S) determined. On the encoder mode matrix a Singular Value Decomposition is carried out in order to get related singular values which are compared with the threshold value, leading to a final encoder mode matrix rank (rfins). Based on direction values (?l) of loudspeakers and a decoder Ambisonics order (Nl), corresponding ket vectors (|Y(?l)) and a decoder mode matrix (?O×L) are formed. On the decoder mode matrix a Singular Value Decomposition is carried out, providing a final decoder mode matrix rank (rfind).
    Type: Application
    Filed: August 14, 2017
    Publication date: December 28, 2017
    Applicant: Dolby International AB
    Inventors: Holger KROPP, Stefan ABELING
  • Patent number: 9736608
    Abstract: The encoding and decoding of HOA signals using Singular Value Decomposition includes forming (11) based on sound source direction values and an Ambisonics order corresponding ket vectors (|Y(?5))) of spherical harmonics and an encoder mode matrix (?0?s). From the audio input signal (|?(?s))) a singular threshold value (??) determined. On the encoder mode matrix a Singular Value Decomposition (13) is carried out in order to get related singular values which are compared with the threshold value, leading to a final encoder mode matrix rank (rfine). Based on direction values (?l) of loudspeakers and a decoder Ambisonics order (Nl ), corresponding ket vectors (IY(?l )) and a decoder mode matrix (?0?L) are formed (18). On the decoder mode matrix a Singular Value Decomposition (19) is carried out, providing a final decoder mode matrix rank (r find).
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: August 15, 2017
    Assignee: Dolby International AB
    Inventors: Holger Kropp, Stefan Abeling
  • Publication number: 20170006401
    Abstract: The encoding and decoding of HOA signals using Singular Value Decomposition includes forming (11) based on sound source direction values and an Ambisonics order corresponding ket vectors (|(?5))) of spherical harmonics and an encoder mode matrix (?0?s). From the audio input signal (|?(?s))) a singular threshold value (??) determined. On the encoder mode matrix a Singular Value Decomposition (13) is carried out in order to get related singular values which are compared with the threshold value, leading to a final encoder mode matrix rank (rfine). Based on direction values (??) of loudspeakers and a decoder Ambisonics order (N?), corresponding ket vectors (IY(??)) and a decoder mode matrix (?0?L) are formed (18). On the decoder mode matrix a Singular Value Decomposition (19) is carried out, providing a final decoder mode matrix rank (r find).
    Type: Application
    Filed: November 18, 2014
    Publication date: January 5, 2017
    Inventors: Holger KROPP, Stefan ABELING
  • Publication number: 20150150040
    Abstract: An audio/video broadcast system, a method for operating the same and a user device for operation in the interactive broadcast system. The broadcast system comprises an capture unit, an editing unit and a user device. A plurality of video streams is captured by the capture unit, a main signal A is broadcast via a broadcast channel to the plurality of user devices. A user request S is transmitted from the user device to the editing unit and is indicative to information about a topic for an edited replay clip. After processing of content at the editing unit so as to generate the edited replay clip in response to the user request, said reply clip is broadcast using free bandwidth of the broadcast channel. A copy of the replay clip is cached at the user device and reproduced upon reception of a user command.
    Type: Application
    Filed: May 21, 2013
    Publication date: May 28, 2015
    Inventors: Malte Borsum, Axel Kochale, Stefan Abeling
  • Patent number: 9026722
    Abstract: High speed mass storage devices using NAND flash memories (MDY.X) are suitable for recording and playing back a video data stream under real-time conditions, wherein the data are handled page-wise in the flash memories and are written in parallel to multiple memory buses (MBy). However, for operating with multiple independent data streams a significant buffer size is required. According to the invention, data from different data streams are collected in corresponding different buffers (FIFO 1, . . . , FIFO Z) until the amount of collected data in a current buffer corresponds to a current one of the data blocks. Then, the data of the current data block from the current buffer are stored into memories connected to a current one of the memory buses, wherein the following buffered data block of the related data stream is later on stored into memories connected to a following one of the memory buses, the number of the following memory bus being increased with respect to the number of the current memory bus.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: May 5, 2015
    Assignee: Thomson Licensing
    Inventors: Oliver Kamphenkel, Thomas Brune, Michael Drexler, Stefan Abeling
  • Patent number: 8933735
    Abstract: A clock generation circuit comprises an internal clock signal source providing an internal clock signal and a synchronization device for synchronization the internal clock signal with a reference clock signal provided externally from the clock generation circuit. The synchronization device comprises n delay locked loop circuits, n being an integer greater than 1, each delay locked loop circuit having a clock input for receiving the internal clock signal and a clock output for providing an output clock signal with an individual phase shift that is adjustable. The synchronization device further comprises a multiplexer having n inputs and an output wherein each of the n inputs is connected to an output of one of the n delay locked loops and a control circuit.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: January 13, 2015
    Assignee: Thomson Licensing
    Inventors: Holger Kropp, Herbert Schuetze, Stefan Abeling
  • Publication number: 20140145770
    Abstract: A clock generation circuit comprises an internal clock signal source providing an internal clock signal and a synchronization device for synchronization the internal clock signal with a reference clock signal provided externally from the clock generation circuit. The synchronization device comprises n delay locked loop circuits, n being an integer greater than 1, each delay locked loop circuit having a clock input for receiving the internal clock signal and a clock output for providing an output clock signal with an individual phase shift that is adjustable. The synchronization device further comprises a multiplexer having n inputs and an output wherein each of the n inputs is connected to an output of one of the n delay locked loops and a control circuit.
    Type: Application
    Filed: July 12, 2012
    Publication date: May 29, 2014
    Applicant: Thomson Licensing
    Inventors: Holger Kropp, Herbert Schuetze, Stefan Abeling
  • Publication number: 20130138875
    Abstract: High speed mass storage devices using NAND flash memories (MDY.X) are suitable for recording and playing back a video data stream under real-time conditions, wherein the data are handled page-wise in the flash memories and are written in parallel to multiple memory buses (MBy). However, for operating with multiple independent data streams a significant buffer size is required. According to the invention, data from different data streams are collected in corresponding different buffers (FIFO 1, . . . , FIFO Z) until the amount of collected data in a current buffer corresponds to a current one of the data blocks. Then, the data of the current data block from the current buffer are stored into memories connected to a current one of the memory buses, wherein the following buffered data block of the related data stream is later on stored into memories connected to a following one of the memory buses, the number of the following memory bus being increased with respect to the number of the current memory bus.
    Type: Application
    Filed: August 8, 2011
    Publication date: May 30, 2013
    Applicant: THOMSON LICENSING
    Inventors: Oliver Kamphenkel, Thomas Brune, Michael Drexler, Stefan Abeling
  • Patent number: 8285932
    Abstract: The present invention relates to a mass storage system with improved usage of buffer capacity, and more specifically to a mass storage system for real-time data storage with an embedded controller. According to the invention, the mass storage system has a first data path between a real-time data interface and a mass storage array, the first data path including a data buffer without access latency, and a second data path between an embedded processor and the mass storage array, wherein the data buffer without access latency is also used as a data buffer for non real-time data transfers between the embedded processor and the mass storage array.
    Type: Grant
    Filed: August 26, 2008
    Date of Patent: October 9, 2012
    Assignee: Thomson Licensing
    Inventors: Stefan Abeling, Johann Maas, Wolfgang Klausberger, Thomas Brune
  • Patent number: 8234448
    Abstract: The present invention relates to a redundancy protected mass storage system with increased performance, and more specifically to a mass storage system with multiple storage units. According to the invention, the resources that are essentially provided for compensating the damage of one or more storage units are also used to enhance the system performance. For this purpose during reading or writing the storage system just waits for the responses of a minimum number of required storage units to start reading or writing, respectively.
    Type: Grant
    Filed: August 5, 2008
    Date of Patent: July 31, 2012
    Assignee: Thomson Licensing
    Inventors: Stefan Abeling, Wolfgang Klausberger, Thomas Brune, Axel Kochale
  • Patent number: 8074015
    Abstract: In a storage medium, an address space is defined which is divided into a first area and a second area. According to the invention, at least one file is stored on the medium which is split into small data packets and large data packets. All small data packets are stored on said first area, and all large data packets are stored on said second area. A single file allocation table (FAT) is used and is small by having one entry per data packet.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: December 6, 2011
    Assignee: Thomson Licensing
    Inventors: Johann Maas, Axel Kochale, Stefan Abeling
  • Publication number: 20110055472
    Abstract: The present invention relates to a redundancy protected mass storage system with increased performance, and more specifically to a mass storage system with multiple storage units. According to the invention, the resources that are essentially provided for compensating the damage of one or more storage units are also used to enhance the system performance. For this purpose during reading or writing the storage system just waits for the responses of a minimum number of required storage units to start reading or writing, respectively.
    Type: Application
    Filed: August 5, 2008
    Publication date: March 3, 2011
    Inventors: Stefan Abeling, Wolfgang Klausberger, Thomas Brune, Axel Kochale
  • Publication number: 20100211738
    Abstract: The present invention relates to a mass storage system with improved usage of buffer capacity, and more specifically to a mass storage system for real-time data storage with an embedded controller. According to the invention, the mass storage system has a first data path between a real-time data interface and a mass storage array, the first data path including a data buffer without access latency, and a second data path between an embedded processor and the mass storage array, wherein the data buffer without access latency is also used as a data buffer for non real-time data transfers between the embedded processor and the mass storage array.
    Type: Application
    Filed: August 26, 2008
    Publication date: August 19, 2010
    Inventors: Stefan Abeling, Johann Maas, Wolfgang Klausberger, Thomas Brune
  • Publication number: 20090059737
    Abstract: In a storage medium, an address space is defined which is divided into a first area and a second area. According to the invention, at least one file is stored on the medium which is split into small data packets and large data packets. All small data packets are stored on said first area, and all large data packets are stored on said second area. A single file allocation table (FAT) is used and is small by having one entry per data packet.
    Type: Application
    Filed: August 28, 2008
    Publication date: March 5, 2009
    Inventors: Johann Maas, Axel Kochale, Stefan Abeling