Patents by Inventor Andreas Ehret

Andreas Ehret 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).

  • Patent number: 9042571
    Abstract: In some embodiments, a method for processing output of at least one microphone of a device (e.g., a headset) to identify at least one touch gesture exerted by a user on the device, including by distinguishing the gesture from input to the microphone other than a touch gesture intended by the user, and by distinguishing between a tap exerted by the user on the device and at least one dynamic gesture exerted by the user on the device, where the output of the at least one microphone is also indicative of ambient sound (e.g., voice utterences). Other embodiments are systems for detecting ambient sound (e.g., voice utterences) and touch gestures, each including a device including at least one microphone and a processor coupled and configured to process output of each microphone to identify at least one touch gesture exerted by a user on the device.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 26, 2015
    Assignees: Dolby Laboratories Licensing Corporation, Dolby International AB
    Inventors: Glenn N. Dickins, David P. Doney, Andreas Ehret, Xuejing Sun
  • Publication number: 20130022214
    Abstract: In some embodiments, a method for processing output of at least one microphone of a device (e.g., a headset) to identify at least one touch gesture exerted by a user on the device, including by distinguishing the gesture from input to the microphone other than a touch gesture intended by the user, and by distinguishing between a tap exerted by the user on the device and at least one dynamic gesture exerted by the user on the device, where the output of the at least one microphone is also indicative of ambient sound (e.g., voice utterences). Other embodiments are systems for detecting ambient sound (e.g., voice utterences) and touch gestures, each including a device including at least one microphone and a processor coupled and configured to process output of each microphone to identify at least one touch gesture exerted by a user on the device.
    Type: Application
    Filed: June 20, 2012
    Publication date: January 24, 2013
    Applicants: DOLBY INTERNATIONAL AB, DOLBY LABORATORIES LICENSING CORPORATION
    Inventors: GLENN N. DICKINS, DAVID P. DONEY, ANDREAS EHRET, XUEJING SUN
  • Patent number: 7936785
    Abstract: An apparatus for generating a data stream having a series of segments using data organized in subsequent data frames, a data frame having more important and less important data. It comprises a packetiser for packetising data from a data frame into the series of segments having a first segment and a second segment, where the packetiser is operative to packetise the data of the frame so that a starting point of the more important data coincides with a starting point of the first segment and an information block adder for adding a first information block to the first segment.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: May 3, 2011
    Assignees: Coding Technologies AB, SK Telecom Co., Ltd.
    Inventors: Andreas Ehret, Holger Hoerich, Michael Schug, Andreas Schneider
  • Patent number: 7809018
    Abstract: An apparatus for generating a data stream having a series of segments using data organized in subsequent data frames. The apparatus comprises a packetiser for packetising data from a data frame into the series of segments having a first segment and a second segment, where the second segment has interpretable data entities and has a data entity fragment, the data entity fragment including only a part of an interpretable data entity preceding an interpretable data entity. The apparatus comprises furthermore an information block adder for adding an information block associated with the second segment, the information block indicating an entry point into the second segment, the entry point indicating a start of the interpretable data entity following the data entity fragment.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: October 5, 2010
    Assignees: Coding Technologies AB, SK Telecom Co., Ltd.
    Inventors: Andreas Ehret, Holger Hoerich, Michael Schug, Andreas Schneider
  • Publication number: 20070216102
    Abstract: Board games include one or more of a game board with a pathway, a plurality of playing pieces, a target, one or more projectiles for launching at the target, a plurality of cards, and a movement indication device. Movement of the playing pieces around the pathway is determined by where a projectile lands on the target upon being launched by a player, by indicia on a card drawn from the plurality of cards, and/or by a movement indication device. Targets may be integral to or separate from the game board.
    Type: Application
    Filed: May 31, 2006
    Publication date: September 20, 2007
    Applicant: MATTEL, INC.
    Inventors: Kimberly Matilla, Andrea Ehret
  • Publication number: 20070156725
    Abstract: An apparatus for generating a data stream having a series of segments using data organized in subsequent data frames. The apparatus comprises a packetiser for packetising data from a data frame into the series of segments having a first segment and a second segment, where the second segment has interpretable data entities and has a data entity fragment, the data entity fragment including only a part of an interpretable data entity preceding an interpretable data entity. The apparatus comprises furthermore an information block adder for adding an information block associated with the second segment, the information block indicating an entry point into the second segment, the entry point indicating a start of the interpretable data entity following the data entity fragment.
    Type: Application
    Filed: December 15, 2006
    Publication date: July 5, 2007
    Inventors: Andreas Ehret, Holger Hoerich, Michael Schug, Andreas Schneider
  • Publication number: 20070140359
    Abstract: An apparatus for generating a data stream having a series of segments using data organized in subsequent data frames, a data frame having more important and less important data. It comprises a packetiser for packetising data from a data frame into the series of segments having a first segment and a second segment, where the packetiser is operative to packetise the data of the frame so that a starting point of the more important data coincides with a starting point of the first segment and an information block adder for adding a first information block to the first segment.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 21, 2007
    Inventors: Andreas Ehret, Holger Hoerich, Michael Schug, Andreas Schneider
  • Patent number: 7050972
    Abstract: An apparatus for encoding an audio signal to obtain an encoded audio signal to be used by a decoder having a high frequency reconstruction module for performing a high frequency reconstruction for a frequency range above a crossover frequency includes, a core encoder for encoding a lower frequency band of the audio signal up to the crossover frequency, the crossover frequency being variable, and the core encoder being operable on a block-wise frame by frame basis, and a crossover frequency control module for estimating, dependent on a measure of the degree of difficulty for encoding the audio signal by the core encoder and/or a boarder between a tonal and a noise-like frequency range of the audio signal, the crossover frequency to be selected by the core encoder for a frame of a series of subsequent frames, so that the crossover frequency is variable adaptively over time for the series of subsequent frames.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: May 23, 2006
    Assignee: Coding Technologies AB
    Inventors: Fredrik Henn, Andrea Ehret, Michael Schug
  • Patent number: 6975254
    Abstract: In a method for coding an audio signal to obtain a coded bit stream, discrete-time samples of the audio signal are transformed into the frequency domain to obtain spectral values. The spectral values are coded with a code table having a limited number of code words of different lengths to obtain spectral values coded by code words, the length of a code word assigned to a spectral value being that much shorter the higher the probability of occurrence of the spectral value is. A raster is then specified for the coded bit stream, the raster having equidistant raster points and the distance between the raster points depending on the code table(s) used. In order to obtain error-tolerant Huffman coding, priority code words, which represent particular spectral values which are psychoacoustically more important than other spectral values, are so arranged in the raster that the start of each priority code word coincides with a raster point.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: December 13, 2005
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung E.V.
    Inventors: Ralph Sperschneider, Martin Dietz, Andreas Ehret, Karlheinz Brandenburg, Heinz Gerhaeuser, Ali Nowbakht-Irani, Pierre Lauber, Roland Bitto
  • Patent number: 6766293
    Abstract: In a method for signalling a noise substitution when coding an audio signal, the time-domain audio signal is first transformed into the frequency domain to obtain spectral values. The spectral values are subsequently grouped together to form groups of spectral values. On the basis of a detection establishing whether a group of spectral values is a noisy group or not, a codebook is allocated to a non-noisy or tonal group by means of a codebook number for redundancy coding of the same. If a group is noisy, an additional codebook number which does not refer to a codebook is allocated to it in order to signal that this group is noisy and therefore does not have to be redundancy coded. By signalling noise substitution by means of a Huffman codebook number for noisy groups of spectral values, which are e.g.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: July 20, 2004
    Assignee: Fraunhofer-Gesellschaft Zur Foerderung der Angewandten Forschung E.V.
    Inventors: Jürgen Herre, Uwe Gbur, Andreas Ehret, Martin Dietz, Bodo Teichmann, Oliver Kunz, Karlheinz Brandenburg, Heinz Gerhäuser
  • Publication number: 20020103637
    Abstract: The present invention relates to digital audio coding systems that employ high frequency reconstruction (HFR) methods. It teaches how to improve the overall performance of such systems, by means of an adaption over time of the crossover frequency between the lowband coded by a core codec, and the highband coded by an HFR system. Different methods of establishing the instantaneous optimum choice of crossover frequency are introduced.
    Type: Application
    Filed: November 15, 2001
    Publication date: August 1, 2002
    Inventors: Fredrik Henn, Andrea Ehret, Michael Schug
  • Patent number: 6424939
    Abstract: A method for coding or decoding an audio signal combines the advantages of TNS processing and noise substitution. A time-discrete audio signal is initially transformed to the frequency domain in order to obtain spectral values of the temporal audio signal. Subsequently, a prediction of the spectral values in relation to frequency is carried out in order to obtain spectral residual values. Within the spectral residual values, areas are detected encompassing spectral residual values with noise properties. The spectral residual values in the noise areas are noise-substituted, whereupon information concerning the noise areas and noise substitution is incorporated into side information pertaining to a coded audio signal. Thus, considerable bit savings in case of transient signals can be achieved.
    Type: Grant
    Filed: October 6, 1999
    Date of Patent: July 23, 2002
    Assignee: Fraunhofer-Gesellschaft zur Forderung Der Angewandten Forschung E.V.
    Inventors: Jürgen Herre, Uwe Gbur, Andreas Ehret, Martin Dietz, Bodo Teichmann, Oliver Kunz, Karlheinz Brandenburg, Heinz Gerhauser