Patents by Inventor Jonas Samuelsson
Jonas Samuelsson 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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Publication number: 20160111097Abstract: The present disclosure provides methods, devices and computer program products which provide less complex and more flexible control of the introduced decorrelation in an audio coding system. According to the disclosure, this is achieved by calculating and using two weighting factors, one for an approximated audio object and one for a decorrelated audio object, for introduction of decorrelation of audio objects in the audio coding system.Type: ApplicationFiled: May 23, 2014Publication date: April 21, 2016Applicant: DOLBY INTERNATIONAL ABInventors: Heiko PURNHAGEN, Lars VILLEMOES, Leif Jonas SAMUELSSON, Toni HIRVONEN
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Publication number: 20160111099Abstract: Audio objects are associated with positional metadata. A received downmix signal comprises downmix channels that are linear combinations of one or more audio objects and are associated with respective positional locators. In a first aspect, the downmix signal, the positional metadata and frequency-dependent object gains are received. An audio object is reconstructed by applying the object gain to an upmix of the downmix signal in accordance with coefficients based on the positional metadata and the positional locators. In a second aspect, audio objects have been encoded together with at least one bed channel positioned at a positional locator of a corresponding downmix channel. The decoding system receives the downmix signal and the positional metadata of the audio objects. A bed channel is reconstructed by suppressing the content representing audio objects from the corresponding downmix channel on the basis of the positional locator of the corresponding downmix channel.Type: ApplicationFiled: May 23, 2014Publication date: April 21, 2016Applicant: DOLBY INTERNATIONAL ABInventors: Toni HIRVONEN, Heiko PURNHAGEN, Leif Jonas SAMUELSSON, Lars VILLEMOES
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Patent number: 9313597Abstract: In one embodiment, a pickup system includes a wind detector and a wind suppressor. The wind detector has a plurality of analyzers each configured to analyze first and second input signals, and a combiner configured to combine outputs of the plurality of analyzers and issue, based on the combined outputs, a wind level indication signal indicative of wind activity. The analyzers can be selected from a group of analyzers including a spectral slope analyzer, a ratio analyzer, a coherence analyzer, a phase variance analyzer and the like. The wind suppressor has a ratio calculator configured to generate a ratio of the first and second input signals, and a mixer configured to select one of the first or second input signals and to apply to the selected input signal one of first or second panning coefficients based on the wind level indication signal and on the ratio.Type: GrantFiled: January 26, 2012Date of Patent: April 12, 2016Assignees: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Glenn N. Dickins, Leif Jonas Samuelsson
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Publication number: 20150356978Abstract: The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accordance with decomposition parameters controlling the quantitative properties of an orthogonal energy-compacting transform, into rotated audio signals. Further, a time-variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also comprise mutually independent broadband gains.Type: ApplicationFiled: September 11, 2013Publication date: December 10, 2015Applicants: DOLBY INTERNATIONAL AB, DOLBY LABORATORIES LICENSING CORPORATIONInventors: Glenn DICKINS, Heiko PURNHAGEN, Leif Jonas SAMUELSSON
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Publication number: 20150248889Abstract: The invention provides a layered audio coding format with a monophonic layer and at least one sound field layer. A plurality of audio signals is decomposed, in accordance with decomposition parameters controlling the quantitative properties of an orthogonal energy-compacting transform, into rotated audio signals. Further, a time-variable gain profile specifying constructively how the rotated audio signals may be processed to attenuate undesired audio content is derived. The monophonic layer may comprise one of the rotated signals and the gain profile. The sound field layer may comprise the rotated signals and the decomposition parameters. In one embodiment, the gain profile comprises a cleaning gain profile with the main purpose of eliminating non-speech components and/or noise. The gain profile may also comprise mutually independent broadband gains.Type: ApplicationFiled: September 10, 2013Publication date: September 3, 2015Applicants: DOLBY INTERNATIONAL AB, DOLBY LABORATORIES LICENSING CORPORATIONInventors: Glenn Dickins, Heiko Purnhagen, Leif Jonas Samuelsson
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Publication number: 20150221313Abstract: A method for encoding sound field signals includes allocating coding rate by application of a uniform criterion to all subbands of all signals in a joint process. An allocation criterion may be based on a comparison, in a given subband, between a spectral envelope of the signals to be encoded and a coding noise profile, wherein the noise profile may be a sum of a noise shape and a noise offset, which noise offset is computed on the basis of the coding bit budget. The rate allocation process may be combined with an energy-compacting orthogonal transform, for which there is proposed a parameterization susceptible of efficient coding and having adjustable directivity. In a further aspect, the invention provides a corresponding decoding method.Type: ApplicationFiled: September 20, 2013Publication date: August 6, 2015Applicants: DOLBY INTERNATIONAL AB, DOLBY LABORATORIES LICENSING CORPORATIONInventors: Heiko Purnhagen, Leif Jonas Samuelsson, Janusz Klejsa, Lars Villemoes, Toni Hirvonen, Glenn N. Dickins, Richard James Cartwright
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Patent number: 9047473Abstract: A customer server receives a client request to access protected resources over the Internet. First factor authentication is performed and if it is successful a vendor authentication engine is invoked to undertake second factor authentication. The results of the second factor authentication are returned to the customer server, which grants access only if both first and second factor authentication succeeds.Type: GrantFiled: August 30, 2013Date of Patent: June 2, 2015Assignee: Anakam, Inc.Inventors: Jonas Samuelsson, Allan Camaisa
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Patent number: 8938387Abstract: The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; and a quantization unit for quantizing the transform domain signal. The quantization unit decides, based on input signal characteristics, to encode the transform domain signal with a model-based quantizer or a non-model-based quantizer. Preferably, the decision is based on the frame size applied by the transformation unit.Type: GrantFiled: May 28, 2013Date of Patent: January 20, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Per Hedelin, Pontus Carlsson, Leif Jonas Samuelsson, Michael Schug
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Patent number: 8924201Abstract: The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; and a quantization unit for quantizing the transform domain signal. The quantization unit decides, based on input signal characteristics, to encode the transform domain signal with a model-based quantizer or a non-model-based quantizer. Preferably, the decision is based on the frame size applied by the transformation unit.Type: GrantFiled: May 24, 2013Date of Patent: December 30, 2014Assignee: Dolby International ABInventors: Per Hedelin, Pontus Carlsson, Leif Jonas Samuelsson, Michael Schug
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Publication number: 20130347129Abstract: A customer server receives a client request to access protected resources over the Internet. First factor authentication is performed and if it is successful a vendor authentication engine is invoked to undertake second factor authentication. The results of the second factor authentication are returned to the customer server, which grants access only if both first and second factor authentication succeeds.Type: ApplicationFiled: August 30, 2013Publication date: December 26, 2013Applicant: Anakam, Inc.Inventors: Jonas Samuelsson, Allan Camaisa
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Publication number: 20130315403Abstract: A spatial adaptation system for multiple-microphone sound capture systems and methods thereof are described. A spatial adaptation system includes an inference and weight module configured to receive a inputs. The inputs based on two or more input signals captured by at least two microphones. The inference and weight module to determine one or more weight values base on at least one of the inputs. The spatial adaptation system also including a noise magnitude ratio update module coupled with the inference and weight module. The noise magnitude ratio update module to determine an updated noise target based on the one or more weight values from the inference and weight module.Type: ApplicationFiled: February 10, 2012Publication date: November 28, 2013Applicant: Dolby International ABInventor: Leif Jonas Samuelsson
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Publication number: 20130308784Abstract: In one embodiment, a pickup system includes a wind detector and a wind suppressor. The wind detector has a plurality of analyzers each configured to analyze first and second input signals, and a combiner configured to combine outputs of the plurality of analyzers and issue, based on the combined outputs, a wind level indication signal indicative of wind activity. The analyzers can be selected from a group of analyzers including a spectral slope analyzer, a ratio analyzer, a coherence analyzer, a phase variance analyzer and the like. The wind suppressor has a ratio calculator configured to generate a ratio of the first and second input signals, and a mixer configured to select one of the first or second input signals and to apply to the selected input signal one of first or second panning coefficients based on the wind level indication signal and on the ratio.Type: ApplicationFiled: January 26, 2012Publication date: November 21, 2013Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Glenn N. Dickins, Leif Jonas Samuelsson
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Publication number: 20130282382Abstract: The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; and a quantization unit for quantizing the transform domain signal. The quantization unit decides, based on input signal characteristics, to encode the transform domain signal with a model-based quantizer or a non-model-based quantizer. Preferably, the decision is based on the frame size applied by the transformation unit.Type: ApplicationFiled: May 24, 2013Publication date: October 24, 2013Applicant: DOLBY INTERNATIONAL ABInventors: Per Hedelin, Pontus Carlsson, Leif Jonas Samuelsson, Michael Schug
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Publication number: 20130282383Abstract: The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; and a quantization unit for quantizing the transform domain signal. The quantization unit decides, based on input signal characteristics, to encode the transform domain signal with a model-based quantizer or a non-model-based quantizer. Preferably, the decision is based on the frame size applied by the transformation unit.Type: ApplicationFiled: May 28, 2013Publication date: October 24, 2013Applicant: DOLBY INTERNATIONAL ABInventors: Per Hedelin, Pontus Carlsson, Leif Jonas Samuelsson, Michael Schug
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Patent number: 8533791Abstract: A customer server receives a client request to access protected resources over the Internet. First factor authentication is performed and if it is successful a vendor authentication engine is invoked to undertake second factor authentication. The results of the second factor authentication are returned to the customer server, which grants access only if both first and second factor authentication succeeds.Type: GrantFiled: June 19, 2008Date of Patent: September 10, 2013Assignee: Anakam, Inc.Inventors: Jonas Samuelsson, Allan Camaisa
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Patent number: 8528078Abstract: The authenticity of a website is determined using a unique string of characters known only to the user and the website on each page of the website that is displayed to the user, with a false site being incapable of displaying this unique string of characters, thereby putting the user on notice that the current site is not the authentic one the user desires to access. Voice methods for conveying one-time pass codes to users and for permitting customer institutions to select authentication rules are also disclosed.Type: GrantFiled: July 2, 2007Date of Patent: September 3, 2013Assignee: Anakam, Inc.Inventors: Allan Camaisa, Jonas Samuelsson
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Patent number: 8484019Abstract: The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; and a quantization unit for quantizing the transform domain signal. The quantization unit decides, based on input signal characteristics, to encode the transform domain signal with a model-based quantizer or a non-model-based quantizer. Preferably, the decision is based on the frame size applied by the transformation unit.Type: GrantFiled: December 30, 2008Date of Patent: July 9, 2013Assignee: Dolby Laboratories Licensing CorporationInventors: Per Hedelin, Pontus Carlsson, Jonas Samuelsson, Michael Schug
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Patent number: 8219822Abstract: The geographic location of a computer attempting to gain authentication to a server is obtained using the IP address of the computer, with authentication being denied if the geographic location is not approved.Type: GrantFiled: October 24, 2005Date of Patent: July 10, 2012Assignee: Anakam, Inc.Inventors: Allan Camaisa, Jonas Samuelsson
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Patent number: 8079070Abstract: When a user successfully logs in to an information server such as an online banking server, an e-commerce server, or a VPN server, for greater security communication is transferred transparently to the user to an authentication server for additional authentication. The additional authentication can include comparing elements of a previously deposited cookie on the user computer to test elements, and if the elements, match, granting access and transparently transferring the user computer back to the information server. If the secondary authentication fails, however, the user may be asked questions as tertiary authentication, or a PIN code can be sent to the user's cell phone, which PIN code can then be input on the user computer to gain access.Type: GrantFiled: March 11, 2005Date of Patent: December 13, 2011Assignee: Anakam LLCInventors: Allan Camaisa, Jonas Samuelsson
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Publication number: 20100286991Abstract: The present invention teaches a new audio coding system that can code both general audio and speech signals well at low bit rates. A proposed audio coding system comprises linear prediction unit for filtering an input signal based on an adaptive filter; a transformation unit for transforming a frame of the filtered input signal into a transform domain; and a quantization unit for quantizing the transform domain signal. The quantization unit decides, based on input signal characteristics, to encode the transform domain signal with a model-based quantizer or a non-model-based quantizer. Preferably, the decision is based on the frame size applied by the transformation unit.Type: ApplicationFiled: December 30, 2008Publication date: November 11, 2010Applicant: DOLBY INTERNATIONAL ABInventors: Per Hedelin, Pontus Carlsson, Jonas Samuelsson, Michael Schug