Patents Assigned to Unlimited Media GmbH
  • Patent number: 8548612
    Abstract: Method of generating a footprint for a useful signal, wherein the useful signal represents the evolution of a spectrum comprising useful signal frequencies, for example audio frequencies, over time, which allows automatic detection of identical or similar useful signals in a cost-efficient way and where the footprint is robust against modifications of the useful signal not perceptible to human users, wherein at least one data set comprising a part of the useful signal is processed by an analyzer according to a predetermined analyzing instruction, where the analyzer outputs as a result of the processing a footprint data vector depending on and identifying the processed data set.
    Type: Grant
    Filed: January 16, 2006
    Date of Patent: October 1, 2013
    Assignee: Unlimited Media GmbH
    Inventor: Hanspeter Rhein
  • Patent number: 8300820
    Abstract: Method of embedding a digital watermark in a useful signal, wherein a watermark bit sequence is embedded into the frequency domain of the useful signal using adaptive frequency modulation of two given frequencies by tracking amplitudes of the chosen frequencies of the original signal and modifying them according to the current bit of watermark bit sequence.
    Type: Grant
    Filed: January 16, 2006
    Date of Patent: October 30, 2012
    Assignee: Unlimited Media GmbH
    Inventor: Hanspeter Rhein
  • Publication number: 20090069909
    Abstract: Method of generating a footprint for a useful signal, wherein the useful signal represents the evolution of a spectrum comprising useful signal frequencies, for example audio frequencies, over time, which allows automatic detection of identical or similar useful signals in a cost-efficient way and where the footprint is robust against modifications of the useful signal not perceptible to human users, wherein at least one data set comprising a part of the useful signal is processed by an analyzer according to a predetermined analyzing instruction, where the analyzer outputs as a result of the processing a footprint data vector depending on and identifying the processed data set.
    Type: Application
    Filed: January 16, 2006
    Publication date: March 12, 2009
    Applicant: UNLIMITED MEDIA GMBH
    Inventor: Hanspeter Rhein