Patents by Inventor Jan Rohden

Jan Rohden 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: 7342167
    Abstract: An encoded rhythmic pattern has several groups of velocity values, wherein the velocity values are sorted, such that the groups are included in sequence in an encoded rhythmic pattern. Now, the velocity values concentrated at the beginning of the encoded rhythmic pattern have a higher importance for characterizing the rhythmic gist of a piece of music than velocity values included in additional groups of velocity values. By using such an encoded rhythmic pattern, an efficient database access can be performed.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: March 11, 2008
    Assignee: Fraunhofer-Gesellschaft zur Forderung der Angewandten Forschung E.V.
    Inventors: Markus Cremer, Matthias Gruhne, Jan Rohden, Christian Uhle
  • Publication number: 20070199430
    Abstract: An encoded rhythmic pattern has several groups of velocity values, wherein the velocity values are sorted, such that the groups are included in sequence in an encoded rhythmic pattern. Now, the velocity values concentrated at the beginning of the encoded rhythmic pattern have a higher importance for characterizing the rhythmic gist of a piece of music than velocity values included in additional groups of velocity values. By using such an encoded rhythmic pattern, an efficient database access can be performed.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 30, 2007
    Inventors: Markus Cremer, Matthias Gruhne, Jan Rohden, Christian Uhle
  • Patent number: 7193148
    Abstract: An encoded rhythmic pattern has several groups of velocity values, wherein the velocity values are sorted, such that the groups are included in sequence in an encoded rhythmic pattern. Now, the velocity values concentrated at the beginning of the encoded rhythmic pattern have a higher importance for characterizing the rhythmic gist of a piece of music than velocity values included in additional groups of velocity values. By using such an encoded rhythmic pattern, an efficient database access can be performed.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: March 20, 2007
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Markus Cremer, Matthias Gruhne, Jan Rohden, Christian Uhle
  • Publication number: 20060075886
    Abstract: An encoded rhythmic pattern has several groups of velocity values, wherein the velocity values are sorted, such that the groups are included in sequence in an encoded rhythmic pattern. Now, the velocity values concentrated at the beginning of the encoded rhythmic pattern have a higher importance for characterizing the rhythmic gist of a piece of music than velocity values included in additional groups of velocity values. By using such an encoded rhythmic pattern, an efficient database access can be performed.
    Type: Application
    Filed: October 8, 2004
    Publication date: April 13, 2006
    Inventors: Markus Cremer, Matthias Gruhne, Jan Rohden, Christian Uhle
  • Patent number: 7012183
    Abstract: An apparatus for analyzing an audio signal with regard to rhythm information of the audio signal by using an autocorrelation function comprises a filter bank for separating the audio signal into at least two sub-band signals. The sub-band signals are examined with regard to periodicities by an autocorrelation function, to obtain rhythm raw-information for the at least two sub-band signals. To reduce or eliminate the ambiguities of the autocorrelation function for periodical signals, the rhythm raw-information is postprocessed to obtain post-processed rhythm raw-information for the sub-band signal. The rhythm information of the audio signal is established based on the postprocessed rhythm raw-information.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: March 14, 2006
    Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung E.V.
    Inventors: J├╝rgen Herre, Jan Rohden, Christian Uhle, Markus Cremer
  • Publication number: 20040094019
    Abstract: An apparatus for analyzing an audio signal with regard to rhythm information of the audio signal by using an autocorrelation function comprises a filter bank for separating the audio signal into at least two sub-band signals. The sub-band signals are examined with regard to periodicities by an autocorrelation function, to obtain rhythm raw-information for the at least two sub-band signals. To reduce or eliminate the ambiguities of the autocorrelation function for periodical signals, the rhythm raw-information is postprocessed to obtain post-processed rhythm raw-information for the sub-band signal. The rhythm information of the audio signal is established based on the postprocessed rhythm raw-information.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 20, 2004
    Inventors: Jurgen Herre, Jan Rohden, Christian Uhle, Markus Cremer
  • Publication number: 20040068401
    Abstract: An apparatus for analyzing an audio signal with regard to rhythm information of the audio signal comprises a filterbank for dividing the audio signal into at least two sub-band signals. Every sub-band signal is examined with regard to a periodicity of the sub-band signal to obtain rhythm raw-information of every sub-band signal. The rhythm raw-information is subjected to a quality evaluation to obtain a significance measure for every sub-band signal. The rhythm information of the audio signal will finally be established by considering the significance measure of the sub-band signal and the rhythm raw-information. This enables a more robust analysis of the audio signal, since sub-band signals, where significant rhythm information are present, are preferred compared to sub-band signals where less significant rhythm information are present, when establishing the rhythm information.
    Type: Application
    Filed: August 11, 2003
    Publication date: April 8, 2004
    Inventors: Jurgen Herre, Jan Rohden, Christian Uhle, Markus Cremer