Patents by Inventor Mark Stuart Vinton
Mark Stuart Vinton 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: 9185507Abstract: Ambience signal components are obtained from source audio signals, matrix-decoded signal components are obtained from the source audio signals, and the ambience signal components are controllably combined with the matrix-decoded signal components. Obtaining ambience signal components may include applying at least one decorrelation filter sequence. The same decorrelation filter sequence may be applied to each of the input audio signals or, alternatively, a different decorrelation filter sequence may be applied to each of the input audio signals.Type: GrantFiled: June 6, 2008Date of Patent: November 10, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Stuart Vinton, Mark F. Davis, Charles Quito Robinson
-
Patent number: 9177564Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: GrantFiled: May 31, 2013Date of Patent: November 3, 2015Assignee: Dolby Laboratories Licensing CorporationInventors: Michael Mead Truman, Mark Stuart Vinton
-
Publication number: 20140161283Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: ApplicationFiled: May 31, 2013Publication date: June 12, 2014Inventors: Michael Mead Truman, Mark Stuart Vinton
-
Patent number: 8706507Abstract: In a first aspect, arbitrary shaping of the temporal envelope of noise is provided in spectral domain coding systems without the need of side-information. In the encoding, a filtered measure of quantization error is applied as a feedback signal to the frequency-domain representation of a discrete time-domain signal prior to quantization, so that the filtering parameters of said filtering affect the shaping of quantization noise in the time domain of the quantized frequency-domain representation with unchanged quantization of the discrete time-domain signal when it is inversely transformed from the frequency domain back to the time domain in decoding. This may be accomplished with respect to each of a plurality of frequency bins or groups of bins. In another aspect, frequency-domain noise-feedback quantizing in digital audio encoding is provided.Type: GrantFiled: August 10, 2007Date of Patent: April 22, 2014Assignee: Dolby Laboratories Licensing CorporationInventor: Mark Stuart Vinton
-
Patent number: 8527264Abstract: A method for determining mantissa bit allocation of frequency domain audio data to be encoded, including by performing adaptive low frequency compensation on each frequency band of a set of low frequency bands of the data.Type: GrantFiled: August 17, 2012Date of Patent: September 3, 2013Assignees: Dolby Laboratories Licensing Corporation, Dolby International ABInventors: Arijit Biswas, Vinay Melkote, Michael Schug, Grant Allen Davidson, Mark Stuart Vinton
-
Patent number: 8457956Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: GrantFiled: August 31, 2012Date of Patent: June 4, 2013Assignee: Dolby Laboratories Licensing CorporationInventors: Michael Mead Truman, Mark Stuart Vinton
-
Publication number: 20120328121Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: ApplicationFiled: August 31, 2012Publication date: December 27, 2012Applicant: Dolby Laboratories Licensing CorporationInventors: Michael Mead Truman, Mark Stuart Vinton
-
Patent number: 8285543Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: GrantFiled: January 24, 2012Date of Patent: October 9, 2012Assignee: Dolby Laboratories Licensing CorporationInventors: Michael Mead Truman, Mark Stuart Vinton
-
Patent number: 8280743Abstract: During production, at least one audio signal is processed in order to derive instructions for channel reconfiguring it. The at least one audio signal and the instructions are stored or transmitted. During consumption, the at least one audio signal is channel reconfigured in accordance with the instructions. Channel reconfiguring includes upmixing, downmixing, and spatial reconfiguration. By determining the channel reconfiguration instructions during production, processing resources during consumption are reduced.Type: GrantFiled: December 3, 2007Date of Patent: October 2, 2012Assignee: Dolby Laboratories Licensing CorporationInventors: Alan Jeffrey Seefeldt, Mark Stuart Vinton, Charles Quito Robinson
-
Patent number: 8255211Abstract: Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.Type: GrantFiled: August 15, 2005Date of Patent: August 28, 2012Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Stuart Vinton, Alan Jeffrey Seefeldt
-
Publication number: 20120128177Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: ApplicationFiled: January 24, 2012Publication date: May 24, 2012Applicant: Dolby Laboratories Licensing CorporationInventors: Michael Mead Truman, Mark Stuart Vinton
-
Patent number: 8126709Abstract: An audio signal is conveyed more efficiently by transmitting or recording a baseband of the signal with an estimated spectral envelope and a noise-blending parameter derived from a measure of the signal's noise-like quality. The signal is reconstructed by translating spectral components of the baseband signal to frequencies outside the baseband, adjusting phase of the regenerated components to maintain phase coherency, adjusting spectral shape according to the estimated spectral envelope, and adding noise according to the noise-blending parameter. Preferably, the transmitted or recorded signal also includes an estimated temporal envelope that is used to adjust the temporal shape of the reconstructed signal.Type: GrantFiled: February 24, 2009Date of Patent: February 28, 2012Assignee: Dolby Laboratories Licensing CorporationInventors: Michael Mead Truman, Mark Stuart Vinton
-
Patent number: 8050933Abstract: A receiver in an audio coding system receives a signal conveying frequency subband signals representing an audio signal. The subband signals are examined to assess one or more characteristics of the audio signal including temporal shape. Spectral components are synthesized having the one or more assessed characteristics, integrated with the subband signals and passed through a synthesis filterbank to generate an output signal.Type: GrantFiled: February 4, 2009Date of Patent: November 1, 2011Assignee: Dolby Laboratories Licensing CorporationInventors: Grant Allen Davidson, Michael Mead Truman, Matthew Conrad Fellers, Mark Stuart Vinton
-
Patent number: 8045719Abstract: An audio upmixer, such as a two-channel to three-channel upmixer, employs a difference in a measure of sound at the ears of a listener in accordance with first and second models, one based on a reproduction of the original channels and the other based on a reproduction of the upmixed channels. The difference is minimized while simultaneously causing a, portion of one or more of the stereophonic channels to be applied to the center loudspeaker under some conditions of the signals in the stereophonic channels, the portion being commensurate with the value of a weighting factor, such that the weighting factor controls a balance between two opposing conditions, one in which no signals are applied to the center loudspeaker and another in which no signals are applied to the left and right loudspeakers.Type: GrantFiled: February 23, 2007Date of Patent: October 25, 2011Assignee: Dolby Laboratories Licensing CorporationInventor: Mark Stuart Vinton
-
Patent number: 8032387Abstract: A receiver in an audio coding system receives a signal conveying frequency subband signals representing an audio signal. The subband signals are examined to assess one or more characteristics of the audio signal including temporal shape. Spectral components are synthesized having the one or more assessed characteristics, integrated with the subband signals and passed through a synthesis filterbank to generate an output signal.Type: GrantFiled: February 4, 2009Date of Patent: October 4, 2011Assignee: Dolby Laboratories Licensing CorporationInventors: Grant Allen Davidson, Michael Mead Truman, Matthew Conrad Fellers, Mark Stuart Vinton
-
Patent number: 8015018Abstract: Each of N audio signals are filtered with a unique decorrelating filter (38) characteristic, the characteristic being a causal linear time-invariant characteristic in the time domain or the equivalent thereof in the frequency domain, and, for each decorrelating filter characteristic, combining (40, 44, 46), in a time and frequency varying manner, its input (Zi) and output (Z-i) signals to provide a set of N processed signals (X i). The set of decorrelation filter characteristics are designed so that all of the input and output signals are approximately mutually decorrelated. The set of N audio signals may be synthesized from M audio signals by upmixing (36), where M is one or more and N is greater than M.Type: GrantFiled: August 24, 2005Date of Patent: September 6, 2011Assignee: Dolby Laboratories Licensing CorporationInventors: Alan Jeffrey Seefeldt, Mark Stuart Vinton
-
Patent number: 7945449Abstract: Certain types of parametric spatial coding encoders use interchannel amplitude differences, interchannel time differences, and interchannel coherence or correlation to build a parametric model of a multichannel soundfield that is used by a decoder to construct an approximation of the original soundfield. However, such a parametric model does not reconstruct the original temporal envelope of the soundfield's channels, which has been found to be extremely important for some audio signals. The present invention provides for the reshaping the temporal envelope of one or more of the decoded channels in a spatial coding system to better match one or more original temporal envelopes.Type: GrantFiled: July 31, 2007Date of Patent: May 17, 2011Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Stuart Vinton, Alan Jeffrey Seefeldt
-
Patent number: 7840410Abstract: Blocks of audio information are arranged in groups that share encoding control parameters to reduce the amount of side information needed to convey the control parameters in an encoded signal. The configuration of groups that reduces the distortion of the encoded audio information may be determined by any of several techniques that search for an optimal or near optimal solution. The techniques include an exhaustive search, a fast optimal search and a greed merge, which allow the search technique to tradeoff the reduction in distortion against the bit rate of the encoded signal and/or the computational complexity of the search technique.Type: GrantFiled: January 19, 2005Date of Patent: November 23, 2010Assignee: Dolby Laboratories Licensing CorporationInventors: Matthew Conrad Fellers, Mark Stuart Vinton, Claus Bauer, Grant Allen Davidson
-
Publication number: 20100177903Abstract: Ambience signal components are obtained from source audio signals, matrix-decoded signal components are obtained from the source audio signals, and the ambience signal components are controllably combined with the matrix-decoded signal components. Obtaining ambience signal components may include applying at least one decorrelation filter sequence. The same decorrelation filter sequence may be applied to each of the input audio signals or, alternatively, a different decorrelation filter sequence may be applied to each of the input audio signals.Type: ApplicationFiled: June 6, 2008Publication date: July 15, 2010Applicant: DOLBY LABORATORIES LICENSING CORPORATIONInventors: Mark Stuart Vinton, Mark F. Davis, Charles Quito Robinson
-
Patent number: RE43985Abstract: Mechanisms are known that allow receivers to control loudness of speech in broadcast signals but these mechanisms require an estimate of speech loudness be inserted into the signal. Disclosed techniques provide improved estimates of loudness. According to one implementation, an indication of the loudness of an audio signal containing speech and other types of audio material is obtained by classifying segments of audio information as either speech or non-speech. The loudness of the speech segments is estimated and this estimate is used to derive the indication of loudness. The indication of loudness maybe used to control audio signal levels so that variations in loudness of speech between different programs is reduced. A preferred method for classifying speech segments is described.Type: GrantFiled: November 17, 2010Date of Patent: February 5, 2013Assignee: Dolby Laboratories Licensing CorporationInventors: Mark Stuart Vinton, Charles Quito Robinson, Kenneth James Gundry, Steven Joseph Venezia, Jeffrey Charles Riedmiller