Patents by Inventor Martin Wolters

Martin Wolters 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: 20220358944
    Abstract: Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
    Type: Application
    Filed: May 23, 2022
    Publication date: November 10, 2022
    Applicants: Dolby Laboratories Licensing Corporation, DOLBY INTERNATIONAL AB
    Inventors: Jeffrey Riedmiller, Harald Mundt, Michael Schug, Martin Wolters
  • Publication number: 20220256236
    Abstract: The present document discloses a method for playback of media content via a delivery channel. The delivery channel may generally refer to the channels through which audio or video programs are delivered (transmitted) to the user (receiver). The media content may generally comprise consecutive media programs. In particular, for a specific media program within the media content, a respective content type for that specific media program is also provided. The method may comprise receiving an indication of the sensitivity of a media program to playback latency. The method may further comprise receiving at least a portion of the media program. The method may yet further comprise adapting the playback of the media program based on the indication of its sensitivity to playback latency.
    Type: Application
    Filed: July 15, 2020
    Publication date: August 11, 2022
    Applicant: DOLBY INTERNATIONAL AB
    Inventors: Martin Wolters, Kurt Krauss
  • Patent number: 11341982
    Abstract: Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
    Type: Grant
    Filed: February 11, 2020
    Date of Patent: May 24, 2022
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Jeffrey Riedmiller, Harald Mundt, Michael Schug, Martin Wolters
  • Patent number: 11264040
    Abstract: A method for rendering an audio output based on an audio data stream including M audio signals, side information including a series of reconstruction instances of a reconstruction matrix C and first timing data, the side information allowing reconstruction of N audio objects from the M audio signals, and object metadata defining spatial relationships between the N audio objects. The method includes generating a synchronized rendering matrix based on the object metadata, the first timing data, and information relating to a current playback system configuration, the synchronized rendering matrix having a rendering instance for each reconstruction instance, multiplying each reconstruction instance with a corresponding rendering instance to form a corresponding instance of an integrated rendering matrix, and applying the integrated rendering matrix to the audio signals in order to render an audio output.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: March 1, 2022
    Assignee: Dolby International AB
    Inventors: Klaus Peichl, Tobias Friedrich, Robin Thesing, Heiko Purnhagen, Martin Wolters
  • Publication number: 20220059102
    Abstract: A method of encoding audio content comprises performing a content analysis of the audio content, generating classification information indicative of a content type of the audio content based on the content analysis, encoding the audio content and the classification information in a bitstream, and outputting the bitstream. A method of decoding audio content from a bitstream including audio content and classification information for the audio content, wherein the classification information is indicative of a content classification of the audio content, comprises receiving the bitstream, decoding the audio content and the classification information, and selecting, based on the classification information, a post processing mode for performing post processing of the decoded audio content. Selecting the post processing mode can involve calculating one or more control weights for post processing of the decoded audio content based on the classification information.
    Type: Application
    Filed: December 10, 2019
    Publication date: February 24, 2022
    Applicants: DOLBY LABORATORIES LICENSING CORPORATION, DOLBY INTERNATIONAL AB
    Inventors: Yanning Bai, Mark William Gerrard, Richard Han, Martin Wolters
  • Publication number: 20210281014
    Abstract: A plug connector assembly includes first and second connector housings, a rotary lever, and a slide. The rotary lever has side faces each having a guide path into which in each case a guide pin on the second connector housing is inserted and is displaced along the guide path by rotation of the rotary lever whereby the connector housings move toward one another and electrical contact elements thereof connect. The slide is movable on the second plug connector housing. A driver element of the rotary lever cooperates in a form-fit manner with a driver element of the slide when the rotary lever rotates causing the slide to linearly move. A locking element of the slide is displaced relative to a locking element of the first connector housing when the slide linearly moves whereby a form-fit locking action between the locking elements may be established or cancelled.
    Type: Application
    Filed: May 26, 2021
    Publication date: September 9, 2021
    Applicant: KOSTAL Kontakt Systeme GmbH
    Inventors: Martin Wolter, Guido Eberhardt, Joerg Mueller, Michael Hasenbank
  • Patent number: 11075762
    Abstract: The present document relates to transcoding of metadata, and in particular to a method and system for transcoding metadata with reduced computational complexity. A transcoder configured to transcode an inbound bitstream comprising an inbound content frame and an associated inbound metadata frame into an outbound bitstream comprising an outbound content frame and an associated outbound metadata frame is described. The inbound content frame is indicative of a signal encoded according to a first codec system and the outbound content frame is indicative of the signal encoded according to a second codec system. The transcoder is configured to identify an inbound block of metadata from the inbound metadata frame, the inbound block of metadata associated with an inbound descriptor indicative of one or more properties of metadata comprised within the inbound block of metadata, and to generate the outbound metadata frame from the inbound metadata frame based on the inbound descriptor.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: July 27, 2021
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Andreas Schneider, Christof Fersch, Martin Wolters, Jeffrey Riedmiller, Scott Gregory Norcross, Michael Grant
  • Publication number: 20210090580
    Abstract: A method for rendering an audio output based on an audio data stream including M audio signals, side information including a series of reconstruction instances of a reconstruction matrix C and first timing data, the side information allowing reconstruction of N audio objects from the M audio signals, and object metadata defining spatial relationships between the N audio objects. The method includes generating a synchronized rendering matrix based on the object metadata, the first timing data, and information relating to a current playback system configuration, the synchronized rendering matrix having a rendering instance for each reconstruction instance, multiplying each reconstruction instance with a corresponding rendering instance to form a corresponding instance of an integrated rendering matrix, and applying the integrated rendering matrix to the audio signals in order to render an audio output.
    Type: Application
    Filed: December 7, 2020
    Publication date: March 25, 2021
    Applicant: DOLBY INTERNATIONAL AB
    Inventors: Klaus PEICHL, Tobias FRIEDRICH, Robin THESING, Heiko PURNHAGEN, Martin WOLTERS
  • Patent number: 10891962
    Abstract: A method for rendering an audio output based on an audio data stream including M audio signals, side information including a series of reconstruction instances of a reconstruction matrix C and first timing data, the side information allowing reconstruction of N audio objects from the M audio signals, and object metadata defining spatial relationships between the N audio objects. The method includes generating a synchronized rendering matrix based on the object metadata, the first timing data, and information relating to a current playback system configuration, the synchronized rendering matrix having a rendering instance for each reconstruction instance, multiplying each reconstruction instance with a corresponding rendering instance to form a corresponding instance of an integrated rendering matrix, and applying the integrated rendering matrix to the audio signals in order to render an audio output.
    Type: Grant
    Filed: March 6, 2018
    Date of Patent: January 12, 2021
    Assignee: Dolby International AB
    Inventors: Klaus Peichl, Tobias Friedrich, Robin Thesing, Heiko Purnhagen, Martin Wolters
  • Publication number: 20200176008
    Abstract: Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
    Type: Application
    Filed: February 11, 2020
    Publication date: June 4, 2020
    Applicants: Dolby Laboratories Licensing Corporation, DOLBY INTERNATIONAL AB
    Inventors: Jeffrey Riedmiller, Harald Mundt, Michael Schug, Martin Wolters
  • Publication number: 20200127846
    Abstract: The present document relates to transcoding of metadata, and in particular to a method and system for transcoding metadata with reduced computational complexity. A transcoder configured to transcode an inbound bitstream comprising an inbound content frame and an associated inbound metadata frame into an outbound bitstream comprising an outbound content frame and an associated outbound metadata frame is described. The inbound content frame is indicative of a signal encoded according to a first codec system and the outbound content frame is indicative of the signal encoded according to a second codec system. The transcoder is configured to identify an inbound block of metadata from the inbound metadata frame, the inbound block of metadata associated with an inbound descriptor indicative of one or more properties of metadata comprised within the inbound block of metadata, and to generate the outbound metadata frame from the inbound metadata frame based on the inbound descriptor.
    Type: Application
    Filed: December 17, 2019
    Publication date: April 23, 2020
    Applicants: DOLBY LABORATORIES LICENSING CORPORATION, DOLBY INTERNATIONAL AB
    Inventors: Andreas SCHNEIDER, Christof FERSCH, Martin WOLTERS, Jeffrey RIEDMILLER, Scott Gregory NORCROSS, Michael GRANT
  • Patent number: 10566006
    Abstract: Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: February 18, 2020
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Jeffrey Riedmiller, Harald Mundt, Michael Schug, Martin Wolters
  • Patent number: 10554415
    Abstract: The present document relates to transcoding of metadata, and in particular to a method and system for transcoding metadata with reduced computational complexity. A transcoder configured to transcode an inbound bitstream comprising an inbound content frame and an associated inbound metadata frame into an outbound bitstream comprising an outbound content frame and an associated outbound metadata frame is described. The inbound content frame is indicative of a signal encoded according to a first codec system and the outbound content frame is indicative of the signal encoded according to a second codec system. The transcoder is configured to identify an inbound block of metadata from the inbound metadata frame, the inbound block of metadata associated with an inbound descriptor indicative of one or more properties of metadata comprised within the inbound block of metadata, and to generate the outbound metadata frame from the inbound metadata frame based on the inbound descriptor.
    Type: Grant
    Filed: September 2, 2017
    Date of Patent: February 4, 2020
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Andreas Schneider, Christof Fersch, Martin Wolters, Jeffrey Riedmiller, Scott Gregory Norcross, Michael Grant
  • Publication number: 20200005801
    Abstract: A method for rendering an audio output based on an audio data stream including M audio signals, side information including a series of reconstruction instances of a reconstruction matrix C and first timing data, the side information allowing reconstruction of N audio objects from the M audio signals, and object metadata defining spatial relationships between the N audio objects. The method includes generating a synchronized rendering matrix based on the object metadata, the first timing data, and information relating to a current playback system configuration, the synchronized rendering matrix having a rendering instance for each reconstruction instance, multiplying each reconstruction instance with a corresponding rendering instance to form a corresponding instance of an integrated rendering matrix, and applying the integrated rendering matrix to the audio signals in order to render an audio output.
    Type: Application
    Filed: March 6, 2018
    Publication date: January 2, 2020
    Applicant: DOLBY INTERNATIONAL AB
    Inventors: Klaus PEICHL, Tobias FRIEDRICH, Robin THESING, Heiko PURNHAGEN, Martin WOLTERS
  • Publication number: 20190325886
    Abstract: Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
    Type: Application
    Filed: July 5, 2019
    Publication date: October 24, 2019
    Applicants: Dolby Laboratories Licensing Corporation, DOLBY INTERNATIONAL AB
    Inventors: Jeffrey Riedmiller, Harald Mundt, Michael Schug, Martin Wolters
  • Patent number: 10418045
    Abstract: Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio. Implementations in encoders, in transcoders and in decoders are disclosed.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 17, 2019
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Jeffrey Riedmiller, Harald Mundt, Michael Schug, Martin Wolters
  • Patent number: 10050381
    Abstract: A plug connector part includes a housing having first and second housing parts. The housing parts are joined together parallel to a plug contact insertion direction. The housing parts have lateral surfaces which face one another when the housing parts are joined together. The housing parts have parallel grooves at their lateral surfaces. The grooves form plug contact receiving channels when the housing parts are joined together. The plug contacts have lances which engage projections of the receiving channels when the plug contacts are fully received within the receiving channels. The first housing part includes spring tongues along the grooves of the first housing part for fixing the plug contacts within the receiving channels. The spring tongues have tab-like sections which extend into the receiving channels and engage the plug contacts to fix the plug contacts within the receiving channels in a form-fit manner.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: August 14, 2018
    Assignee: Kostal Kontakt Systeme GmbH
    Inventors: Martin Wolter, Uwe Raschke, Guido Eberhardt, Alexander Koch, Christian Jaworek
  • Patent number: 9990935
    Abstract: The present document relates to the design of anti-aliasing and/or anti-imaging filters for resamplers using rational resampling factors. In particular, the present document relates to a method for implementing such anti-aliasing and/or anti-imaging filters with reduced computational complexity. In addition, the present document relates to further aspects of an audio encoding and decoding system, such as the phase relation between the channels of a multi-channel audio signal and/or the structure of the bitstream of an encoded audio signal.
    Type: Grant
    Filed: September 10, 2014
    Date of Patent: June 5, 2018
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Alexander Groeschel, Jens Popp, Martin Wolters, Jeffrey Riedmiller, Michael Ward, Karl Jonas Roeden, Holger Hoerich, Karsten Linzmeier, Tobias Friedrich
  • Publication number: 20180123289
    Abstract: A plug connector part includes a housing having first and second housing parts. The housing parts are joined together parallel to a plug contact insertion direction. The housing parts have lateral surfaces which face one another when the housing parts are joined together. The housing parts have parallel grooves at their lateral surfaces. The grooves form plug contact receiving channels when the housing parts are joined together. The plug contacts have lances which engage projections of the receiving channels when the plug contacts are fully received within the receiving channels. The first housing part includes spring tongues along the grooves of the first housing part for fixing the plug contacts within the receiving channels. The spring tongues have tab-like sections which extend into the receiving channels and engage the plug contacts to fix the plug contacts within the receiving channels in a form-fit manner.
    Type: Application
    Filed: December 22, 2017
    Publication date: May 3, 2018
    Applicant: Kostal Kontakt Systeme GmbH
    Inventors: Martin Wolter, Uwe Raschke, Guido Eberhardt, Alexander Koch, Christian Jaworek
  • Patent number: 9955278
    Abstract: The present document relates to the field of encoding and decoding of audio. In particular, the present document relates to encoding and decoding of an audio scene comprising audio objects. A method (400) for encoding metadata relating to a plurality of audio objects (106a) of an audio scene (102) is described. The metadata comprises a first set (114, 314) of metadata and a second set (104) of metadata. The first and second sets (104, 114, 314) of metadata comprise one or more data elements which are indicative of a property of an audio object (106a) from the plurality of audio objects (106a) and/or of a downmix signal (112) derived from the plurality of audio objects (106a). The method (400) comprises identifying (401) a redundant data element which is common to the first and second sets (104, 114, 314) of metadata.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: April 24, 2018
    Assignee: Dolby International AB
    Inventors: Christof Fersch, Heiko Purnhagen, Jens Popp, Martin Wolters