Patents by Inventor Juergen GEIGER
Juergen GEIGER 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).
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Patent number: 11961530Abstract: An apparatus for decoding data segments representing a time-domain data stream, a data segment being encoded in the time domain or in the frequency domain, a data segment being encoded in the frequency domain having successive blocks of data representing successive and overlapping blocks of time-domain data samples. The apparatus includes a time-domain decoder for decoding a data segment being encoded in the time domain and a processor for processing the data segment being encoded in the frequency domain and output data of the time-domain decoder to obtain overlapping time-domain data blocks. The apparatus further includes an overlap/add-combiner for combining the overlapping time-domain data blocks to obtain a decoded data segment of the time-domain data stream.Type: GrantFiled: January 10, 2023Date of Patent: April 16, 2024Assignee: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V.Inventors: Ralf Geiger, Max Neuendorf, Yoshikazu Yokotani, Nikolaus Rettelbach, Juergen Herre, Stefan Geyersberger
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Patent number: 11567162Abstract: A device for estimating Direction of Arrival (DOA) of sound from Q?1 sound sources is provided. The device is configured to obtain a phase difference matrix, which includes measured phase difference values, each of the measured phase difference values being a measured value of a phase difference between two microphone units for a frequency bin in a range of frequencies of the sound. The device is further configured to generate a replicated phase difference matrix by replicating the measured phase difference values to other potential sinusoidal periods, calculate a DOA value for each phase difference value in the replicated phase difference matrix, and determine, as Q DOA results, the Q most prominent peak values in a histogram generated based on the calculated DOA values.Type: GrantFiled: October 25, 2019Date of Patent: January 31, 2023Assignee: Huawei Technologies Co., Ltd.Inventors: Kainan Chen, Jürgen Geiger, Mohammad Taghizadeh, Peter Grosche
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Patent number: 10901063Abstract: The proposed method for localizing a target sound source from a plurality of sound sources, wherein a multi-channel recording signal of the plurality of sound sources comprises a plurality of microphone channel signals, comprises converting each microphone channel signal into a respective channel spectrogram in a time-frequency domain, blindly separating the channel spectrograms to obtain a plurality of separated source signals, identifying, among the plurality of separated source signals, the separated source signal that best matches a target source model, estimating, based on the identified separated source signal, a binary mask reflecting where the target sound source is active in the channel spectrograms in terms of time and frequency, applying the binary mask on the channel spectrograms to obtain masked channel spectrograms, and localizing the target sound source from the plurality of sound sources based on the masked channel spectrograms.Type: GrantFiled: June 21, 2018Date of Patent: January 26, 2021Assignee: Huawei Technologies Duesseldorf GmbHInventors: Karim Helwani, Kainan Chen, Juergen Geiger
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Patent number: 10834505Abstract: An apparatus configured to obtain a plurality of phase differences is provided. Each phase difference represents a difference in phase between a spectral component in a first sound signal and a corresponding spectral component in a second sound signal, to estimate an aliasing frequency. Phase differences in frequency bands above the aliasing frequency are expected to be wrapped, and to unwrap the plurality of phase differences in dependence on the estimated aliasing frequency. A phase difference obtained from spectral components that are comprised in one frequency band is unwrapped independently of any phase difference obtained from spectral components that are comprised in another frequency band.Type: GrantFiled: May 28, 2019Date of Patent: November 10, 2020Assignee: Huawei Technologies Duesseldorf GmbHInventors: Jürgen Geiger, Kainan Chen, Peter Grosche
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Patent number: 10665248Abstract: A device having an input that is configured to receive a sound signal captured from an acoustic environment where the device is located, is provided. The device also includes a signal processor that is configured to obtain a reverberation signature from the sound signal and classify the acoustic environment as being of a particular type in dependence on that reverberation signature. It also includes a controller configured to control an operation of the device in dependence on the classification of the acoustic environment. By using the reverberation signature to classify the environment, the device it is not dependent on a particular type of signal having to be present in the environment at the time when the sound signal is captured. The reverberation properties of the environment will be embodied by any sound signal captured from that environment.Type: GrantFiled: March 8, 2019Date of Patent: May 26, 2020Assignee: Huawei Technologies Co., Ltd.Inventors: Milos Markovic, Jürgen Geiger
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Publication number: 20200057132Abstract: A device for estimating Direction of Arrival (DOA) of sound from Q?1 sound sources is provided. The device is configured to obtain a phase difference matrix, which includes measured phase difference values, each of the measured phase difference values being a measured value of a phase difference between two microphone units for a frequency bin in a range of frequencies of the sound. The device is further configured to generate a replicated phase difference matrix by replicating the measured phase difference values to other potential sinusoidal periods, calculate a DOA value for each phase difference value in the replicated phase difference matrix, and determine, as Q DOA results, the Q most prominent peak values in a histogram generated based on the calculated DOA values.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Inventors: Kainan CHEN, Jürgen GEIGER, Mohammad TAGHIZADEH, Peter GROSCHE
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Patent number: 10484808Abstract: Example audio signal processing apparatuses and methods for processing an input audio signal into an output audio signal are disclosed. An example audio signal processing apparatus comprises a decomposer configured to decompose the input audio signal into a direct audio signal and a diffuse audio signal, a modifier configured to modify the direct audio signal in order to obtain a modified direct audio signal, wherein the modifier comprises a bandwidth extender configured to extend an upper cutoff frequency of a frequency range of the direct audio signal, and a combiner configured to combine the modified direct audio signal with the diffuse audio signal to obtain the output audio signal.Type: GrantFiled: March 13, 2018Date of Patent: November 19, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Juergen Geiger, Peter Grosche
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Patent number: 10433056Abstract: An input audio signal is separated into input audio signal components (X(k,b)). A set of two or more band branches provides output audio signal components (Y(k,b)). The set of band branches comprises one or more compressor branches Each compressor branch compresses a respective input audio signal component (X(k,b)) into a respective output audio signal component (Y(k,b)). A summed audio signal (y(t)) is generated by summing the output audio signal components (Y(k,b)). A residual audio signal (v(t)) is a difference between the input audio signal and the summed audio signal(y(t)) A virtual bass signal (w(t)) comprises one or more harmonics of the residual audio signal (v(t)). An output audio signal is generated by summing the summed audio signal (y(t)) and the virtual bass signal (w(t)).Type: GrantFiled: November 21, 2018Date of Patent: October 1, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Christof Faller, Alexis Favrot, Peter Grosche, Martin Pollow, Jürgen Geiger
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Publication number: 20190281386Abstract: An apparatus is configured to obtain a plurality of phase differences, wherein each phase difference represents a difference in phase between a spectral component in a first sound signal and a corresponding spectral component in a second sound signal, to estimate an aliasing frequency, wherein phase differences in frequency bands above the aliasing frequency are expected to be wrapped, and to unwrap the plurality of phase differences in dependence on the estimated aliasing frequency, wherein a phase difference obtained from spectral components that are comprised in one frequency band is unwrapped independently of any phase difference obtained from spectral components that are comprised in another frequency band.Type: ApplicationFiled: May 28, 2019Publication date: September 12, 2019Inventors: Jürgen Geiger, Kainan Chen, Peter Grosche
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Publication number: 20190206418Abstract: A device has an input that is configured to receive a sound signal captured from an acoustic environment in which the device is located. The device also includes a signal processor that is configured to obtain a reverberation signature from the sound signal and classify the acoustic environment as being of a particular type in dependence on that reverberation signature. It also includes a controller configured to control an operation of the device in dependence on the classification of the acoustic environment. By using the reverberation signature to classify the environment, the device it is not dependent on a particular type of signal having to be present in the environment at the time when the sound signal is captured. The reverberation properties of the environment will be embodied by any sound signal captured from that environment.Type: ApplicationFiled: March 8, 2019Publication date: July 4, 2019Inventors: Milos MARKOVIC, Jürgen GEIGER
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Publication number: 20190098407Abstract: An input audio signal (101) is separated into input audio signal components (X(k,b)). A set of two or more band branches (105e) provides output audio signal components (Y(k,b)). The set of band branches (105e) comprises one or more compressor branches Each compressor branch compresses a respective input audio signal component (X(k,b)) into a respective output audio signal component (Y(k,b)). A summed audio signal (y(t)) is generated by summing the output audio signal components (Y(k,b)). A residual audio signal (v(t)) is a difference between the input audio signal (101) and the summed audio signal (y(t)) A virtual bass signal (w(t)) comprises one or more harmonics of the residual audio signal (v(t)). An output audio signal (103) is generated by summing the summed audio signal (y(t)) and the virtual bass signal (w(t)).Type: ApplicationFiled: November 21, 2018Publication date: March 28, 2019Inventors: Christof FALLER, Alexis FAVROT, Peter GROSCHE, Martin POLLOW, Jürgen GEIGER
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Patent number: 10210883Abstract: A signal processing apparatus for enhancing a voice component within a multi-channel audio signal comprising a left channel audio signal, a center channel audio signal, and a right channel audio signal, the signal processing apparatus comprising a filter and a combiner; wherein the filter is configured to determine an overall magnitude of the multi-channel audio signal over frequency based on the multi-channel audio signal, to obtain a gain function based on a ratio between a magnitude of the center channel audio signal and the overall magnitude of the multi-channel audio signal, and to weight the left channel audio signal, the center channel audio signal, and the right channel audio signal by the gain function; and wherein the combiner is configured to combine individually the left channel audio signal, the center channel audio signal, and the right channel audio signal with the weighted right channel audio signal.Type: GrantFiled: February 9, 2017Date of Patent: February 19, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Juergen Geiger, Peter Grosche
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Publication number: 20180299527Abstract: The proposed method for localizing a target sound source from a plurality of sound sources, wherein a multi-channel recording signal of the plurality of sound sources comprises a plurality of microphone channel signals, comprises converting each microphone channel signal into a respective channel spectrogram in a time-frequency domain, blindly separating the channel spectrograms to obtain a plurality of separated source signals, identifying, among the plurality of separated source signals, the separated source signal that best matches a target source model, estimating, based on the identified separated source signal, a binary mask reflecting where the target sound source is active in the channel spectrograms in terms of time and frequency, applying the binary mask on the channel spectrograms to obtain masked channel spectrograms, and localizing the target sound source from the plurality of sound sources based on the masked channel spectrograms.Type: ApplicationFiled: June 21, 2018Publication date: October 18, 2018Inventors: Karim HELWANI, Kainan CHEN, Juergen GEIGER
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Patent number: 10057702Abstract: The disclosure relates to an audio signal processing apparatus for modifying a stereo image of a stereo signal. The apparatus includes a panning index modifier configured to apply a mapping function to at least all panning indexes of stereo signal time-frequency segments that are within a frequency bandwidth, a first panning gain determiner configured to determine modified panning gains for time-frequency signal segments of the first and second audio signal based on the modified panning indexes, and a re-panner configured to re-pan the stereo signal according to ratios between the modified panning gains and panning gains of the first and second audio signal that correspond to the modified panning gains in time and frequency.Type: GrantFiled: June 7, 2017Date of Patent: August 21, 2018Assignee: Huawei Technologies Co., Ltd.Inventors: Juergen Geiger, Peter Grosche
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Publication number: 20180213342Abstract: Example audio signal processing apparatuses and methods for processing an input audio signal into an output audio signal are disclosed. An example audio signal processing apparatus comprises a decomposer configured to decompose the input audio signal into a direct audio signal and a diffuse audio signal, a modifier configured to modify the direct audio signal in order to obtain a modified direct audio signal, wherein the modifier comprises a bandwidth extender configured to extend an upper cutoff frequency of a frequency range of the direct audio signal, and a combiner configured to combine the modified direct audio signal with the diffuse audio signal to obtain the output audio signal.Type: ApplicationFiled: March 13, 2018Publication date: July 26, 2018Inventors: Juergen GEIGER, Peter GROSCHE
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Publication number: 20170272881Abstract: The disclosure relates to an audio signal processing apparatus for modifying a stereo image of a stereo signal. The apparatus includes a panning index modifier configured to apply a mapping function to at least all panning indexes of stereo signal time-frequency segments that are within a frequency bandwidth, a first panning gain determiner configured to determine modified panning gains for time-frequency signal segments of the first and second audio signal based on the modified panning indexes, and a re-panner configured to re-pan the stereo signal according to ratios between the modified panning gains and panning gains of the first and second audio signal that correspond to the modified panning gains in time and frequency.Type: ApplicationFiled: June 7, 2017Publication date: September 21, 2017Inventors: Juergen Geiger, Peter Grosche
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Publication number: 20170154636Abstract: A signal processing apparatus for enhancing a voice component within a multi-channel audio signal comprising a left channel audio signal, a center channel audio signal, and a right channel audio signal, the signal processing apparatus comprising a filter and a combiner; wherein the filter is configured to determine an overall magnitude of the multi-channel audio signal over frequency based on the multi-channel audio signal, to obtain a gain function based on a ratio between a magnitude of the center channel audio signal and the overall magnitude of the multi-channel audio signal, and to weight the left channel audio signal, the center channel audio signal, and the right channel audio signal by the gain function; and wherein the combiner is configured to combine individually the left channel audio signal, the center channel audio signal, and the right channel audio signal with the weighted right channel audio signal.Type: ApplicationFiled: February 9, 2017Publication date: June 1, 2017Inventors: Juergen GEIGER, Peter GROSCHE
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Patent number: 6437773Abstract: A notebook computer has a basic body comprising a bottom shell and a top shell. A display unit is arranged in a pivotable lid housing and a keyboard is detachably mounted on the top shell. A cutout is provided in the top shell and an outwardly directed electrical contact configuration is secured on an assembly that is attached to the basic body such that the contact configuration is secured in the cutout. The contact configuration is for electrically contacting the keyboard, which has a corresponding mating contact configuration.Type: GrantFiled: September 18, 2000Date of Patent: August 20, 2002Assignee: Fujitsu Siemens Computers GmbHInventors: Ingbert Kornmayer, Bernd Seidel, August Scherer, Jürgen Geiger, Christoph Mayer
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Patent number: D1025407Type: GrantFiled: October 5, 2021Date of Patent: April 30, 2024Assignee: BOTT GMBH & CO. KGInventors: Bernd Geiger, Jürgen Dahner, Simon Dunkinson, Witalij Breimeier