Patents by Inventor Holger Kropp

Holger Kropp 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
  • Patent number: 9628921
    Abstract: An optical microphone comprises a light source configured to emit a light beam and an acoustic sensor configured to reflect the light beam. The acoustic sensor includes single-wall nanotubes and deflects in response to pressure waves. An optional reflector of the optical microphone is configured to re-reflect the light beam from the acoustic sensor. A detector is configured to detect the light beam from the acoustic sensor or the reflector, and thus measures the pressure waves.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: April 18, 2017
    Assignee: THOMSON LICENSING
    Inventors: Holger Kropp, Jens Spille, Malte Borsum
  • 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
  • Patent number: 9241216
    Abstract: The invention is related to a data structure for Higher Order Ambisonics HOA audio data, which data structure includes 2D or 3D spatial audio content data for one or more different HOA audio data stream descriptions. The HOA audio data can have on order of greater than ‘3’, and the data structure in addition can include single audio signal source data and/or microphone array audio data from fixed or time-varying spatial positions.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: January 19, 2016
    Assignee: Thomson Licensing
    Inventors: Florian Keiler, Sven Kordon, Johannes Boehm, Holger Kropp, Johann-Markus Batke
  • Publication number: 20150365753
    Abstract: An optical microphone and a method using the same are described. The optical microphone comprises a light source configured to emit a light beam and an acoustic sensor configured to reflect the light beam. The acoustic sensor includes single-wall nanotubes and deflects in response to pressure waves. An optional reflector of the optical microphone is configured to re-reflect the light beam from the acoustic sensor. A detector is configured to detect the light beam from the acoustic sensor or the reflector, and thus measures the pressure waves.
    Type: Application
    Filed: June 15, 2015
    Publication date: December 17, 2015
    Inventors: Holger KROPP, Jens SPILLE, Malte BORSUM
  • Patent number: 9154269
    Abstract: The invention is directed to a computer system comprising a server and a client and a method for operating a remote procedure call handler in the client and the server. The Method for operating a remote procedure call handler in the client according to the invention comprises the following steps: a) sending a collected call message comprising a number of call messages to the server, b) receiving an error message indicating a successful or erroneous transmission of the call messages comprised by the collected call message, wherein the error message indicates an erroneous transmission of at least one call message, wherein said at least one erroneous transmitted call message is retransmitted by the step of c) sending a further collected call message comprising said erroneous transmitted call message as well as a plurality of further call messages.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: October 6, 2015
    Assignee: Thomson Licensing
    Inventors: Kai Dorau, Holger Kropp
  • Patent number: 9047957
    Abstract: A bit cell of the PROM-device comprises a carbon nanotube having a tilted portion comprising a free end and a fixed portion which is to the reference node. The carbon nanotube comprises a structural defect between the fixed and the tilted portion which causes the carbon nanotube to tilt such that the free end is electrically connected to either the storage electrode or an opposite release electrode.
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: June 2, 2015
    Assignee: Thomson Licensing
    Inventors: Holger Kropp, Meinolf Blawat
  • 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
  • Patent number: 8923029
    Abstract: The field programmable read-only memory device includes a memory cell having a switching element for storing bit information. The switching element provides a switchable electrical connection between a word line and a bit line and includes a static body and a movable connecting element. The switchable electrical connection is non-volatile.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: December 30, 2014
    Assignee: Thomson Licensing
    Inventors: Meinolf Blawat, Holger Kropp
  • 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
  • Patent number: 8705568
    Abstract: The invention relates to the field of packet-oriented protocols. More particularly, the invention concerns a method of operating a protocol parser generated onto a predefined hardware structure. The protocol is packet-oriented and is hierarchically built from different fields in packets. According to the invention, it comprises: —a step of synthesis to define a parser architecture from the hardware structure; —a step of processing parser operations based on the hardware architecture.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: April 22, 2014
    Assignee: Thomson Licensing
    Inventor: Holger Kropp
  • Publication number: 20130216070
    Abstract: The invention is related to a data structure for Higher Order Ambisonics HOA audio data, which data structure includes 2D or 3D spatial audio content data for one or more different HOA audio data stream descriptions. The HOA audio data can have on order of greater than ‘3’, and the data structure in addition can include single audio signal source data and/or microphone array audio data from fixed or time-varying spatial positions.
    Type: Application
    Filed: October 26, 2011
    Publication date: August 22, 2013
    Inventors: Florian Keiler, Sven Kordon, Johannes Boehm, Holger Kropp, Johann-Markus Batke
  • Publication number: 20130039115
    Abstract: The field programmable read-only memory device comprises a memory cell having a switching element for storing bit information. The switching element provides a switchable electrical connection between word line and a bit line and comprises a static body and a moveable connecting element. The switchable electrical connection is non-volatile.
    Type: Application
    Filed: July 17, 2012
    Publication date: February 14, 2013
    Inventors: Meinolf Blawat, Holger Kropp
  • Publication number: 20130039116
    Abstract: A bit cell of the PROM-device comprises a carbon nanotube having a tilted portion comprising a free end and a fixed portion which is to the reference node. The carbon nanotube comprises a structural defect between the fixed and the tilted portion which causes the carbon nanotube to tilt such that the free end is electrically connected to either the storage electrode or an opposite release electrode.
    Type: Application
    Filed: July 24, 2012
    Publication date: February 14, 2013
    Inventors: Holger Kropp, Meinolf Blawat
  • Publication number: 20120319729
    Abstract: A field programmable gate array is disclosed, which comprises at least one logic element having at least one switching element. The switching element comprises a static support element and a movable connecting element for providing a non-volatile electrical connection.
    Type: Application
    Filed: February 8, 2011
    Publication date: December 20, 2012
    Inventors: Meinolf Blawat, Holger Kropp