Patents by Inventor Anssi Sakari Ramo
Anssi Sakari Ramo 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: 9799339Abstract: An apparatus comprising a mapper configured to map an instance of a parameter according to a first mapping to generate a first mapped instance; a remapper configured to remap the first mapped instance dependent on the frequency distribution of mapped instances to generate a remapped instance with an associated order position; and an encoder configured to encode the remapped instance dependent on an order position of the remapped instance.Type: GrantFiled: May 29, 2012Date of Patent: October 24, 2017Assignee: Nokia Technologies OyInventors: Adriana Vasilache, Lasse Juhani Laaksonen, Anssi Sakari Rämö
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Publication number: 20170272856Abstract: Methods, apparatuses, and computer program products are provided to indicate or automatically configure headphone channel orientation based on a physical orientation determination. An apparatus is provided that is configured to at least determine an orientation of the headphone device; analyze the determined orientation; and provide an indication of the determined orientation or adjust the output channel configuration of the apparatus for the headphone device. The apparatus may be further configured to determine the orientation of the headphone device based on at least one of: a head turn position; a direction of one or more audio signals; a direction of movement, wherein the movement is determined based on a determination of acceleration or trajectory of the headphone device; two or more compass data, wherein at least one compass is located in each of the apparatus and the headphone device; and a difference in characteristics of one or more audio signals.Type: ApplicationFiled: June 7, 2017Publication date: September 21, 2017Inventors: Miikka Tapani Vilermo, Lasse Juhani Laaksonen, Antti Eronen, Anssi Sakari Ramo, Koray Ozcan, Jussi Artturi Leppanen
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Patent number: 9681219Abstract: Methods, apparatuses, and computer program products are provided to indicate or automatically configure headphone channel orientation based on a physical orientation determination. An apparatus is provided that is configured to at least determine an orientation of the headphone device; analyze the determined orientation; and provide an indication of the determined orientation or adjust the output channel configuration of the apparatus for the headphone device. The apparatus may be further configured to determine the orientation of the headphone device based on at least one of: a head turn position; a direction of one or more audio signals; a direction of movement, wherein the movement is determined based on a determination of acceleration or trajectory of the headphone device; two or more compass data, wherein at least one compass is located in each of the apparatus and the headphone device; and a difference in characteristics of one or more audio signals.Type: GrantFiled: March 7, 2013Date of Patent: June 13, 2017Assignee: Nokia Technologies OyInventors: Miikka Tapani Vilermo, Lasse Juhani Laaksonen, Antti Eronen, Anssi Sakari Ramo, Koray Ozcan, Jussi Artturi Leppanen
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Publication number: 20170148455Abstract: It is inter alia disclosed to determine a first quantized representation of an input vector, and to determine a second quantized representation of the input vector based on a codebook depending on the first quantized representationType: ApplicationFiled: February 3, 2017Publication date: May 25, 2017Inventors: Adriana VASILACHE, Anssi Sakari RAMO, Lasse Juhani LAAKSONEN
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Patent number: 9659569Abstract: An apparatus comprising: a channel analyzer configured to determine for a first frame of at least one audio signal a set of first frame audio signal multi-channel parameters; a multichannel difference selector configured to select for the first frame groups of elements of the set of first frame audio signal multi-channel parameters based on a value associated with the first frame; and a multichannel parameter encoder configured to generate an encoded first frame audio signal multi-channel parameter based on the selected groups of elements of the set of first frame audio signal multi-channel parameters.Type: GrantFiled: April 26, 2013Date of Patent: May 23, 2017Assignee: Nokia Technologies OyInventors: Adriana Vasilache, Lasse Juhani Laaksonen, Anssi Sakari Rämö
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Patent number: 9542149Abstract: It is inter alia disclosed to receive a set of encoded audio parameters for an audio frame, wherein the set comprises indices representing at least two quantized line spectral frequency coefficients, wherein the audio frame when decoded comprises audio samples digitally sampled at a sampling frequency, wherein the sampling frequency is one of a plurality of sampling frequencies for an audio decoder; to convert the indices to the at least two quantized line spectral frequency coefficients; and to determine the sampling frequency for the audio frame by checking the value of a highest order quantized line spectral frequency coefficient of the at least two quantized line spectral frequency coefficients.Type: GrantFiled: November 10, 2011Date of Patent: January 10, 2017Assignee: Nokia Technologies OyInventors: Anssi Sakari Ramo, Adriana Vasilache, Lasse Juhani Laaksonen
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Patent number: 9532157Abstract: It is inter alia disclosed to generate a signal representation at least based on a noise reduced component from a signal and on a noise component from the signal, said signal representation comprising at least two channel representations.Type: GrantFiled: December 23, 2011Date of Patent: December 27, 2016Assignee: Nokia Technologies OyInventors: Anssi Sakari Rämö, Adriana Vasilache, Lasse Juhani Laaksonen, Miikka Tapani Vilermo
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Publication number: 20160329056Abstract: It is disclosed inter alia a method comprising: estimating a value of entropy for a multi-channel audio signal; determining a channel configuration of the multi-channel audio signal from the value of entropy; and encoding the multi-channel audio signal, wherein the mode of encoding is dependent on the channel configuration.Type: ApplicationFiled: January 13, 2014Publication date: November 10, 2016Inventors: Adriana VASILACHE, Lasse Juhani LAAKSONEN, Anssi Sakari RÄMÖ
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Publication number: 20160314797Abstract: An apparatus comprising: a vector generator configured to generate at least one vector of parameters defining at least one audio signal; a lattice vector quantizer configured to sort the at least one vector of parameters according to an ordering of at least one vector absolute tuples to generate an associated at least one ordered vector of parameters; the lattice vector quantizer configured to select from a list of leader classes at least one potential code vector; the lattice vector quantizer configured to determine a distance between the at least one potential code vector and the at least one ordered vector of parameters; the lattice vector quantizer configured to determine at least one leader class associated with a potential code vector which generates the smallest associated distance; the lattice vector quantizer configured to transpose the at least one leader class to generate an output lattice quantized codevector.Type: ApplicationFiled: December 17, 2013Publication date: October 27, 2016Inventors: Adriana VASILACHE, Anssi Sakari RÄMÖ, Lasse Juhani LAAKSONEN
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Publication number: 20160210975Abstract: It is inter alia disclosed to determine a first quantized representation of an input vector, and to determine a second quantized representation of the input vector based on a codebook depending on the first quantized representationType: ApplicationFiled: July 12, 2012Publication date: July 21, 2016Inventors: Adriana Vasilache, Anssi Sakari Ramo, Lasse Juhani Laaksonen
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Patent number: 9357306Abstract: A method comprising: generating at least one audio signal to be output by at least one speaker for a multi-speaker system; receiving at least two output signals, the at least two output signals provided by at least two microphones and based on the at least one acoustic wave output by the at least one speaker in response to the at least one audio signal; determining a directional component associated with the at least two output signals; and comparing the directional component with an expected location of the at least one speaker.Type: GrantFiled: February 26, 2014Date of Patent: May 31, 2016Assignee: Nokia Technologies OyInventors: Mikko Tapio Tammi, Anssi Sakari Rämö, Ravi Shenoy, Sampo Vesa
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Patent number: 9344826Abstract: A method, apparatus computer program product are provided to facilitate the utilization of the spatial position of audio signals in order to improve voice quality. In the context of a method, a main mono signal is determined from one or more audio signals that were received. The method also includes determining one or more ambience signals from the one or more audio signals that were received, such as following removal of the main mono signal therefrom. The method also adjusts at least one of a virtual position of the main mono signal for provision to a recipient device or the one or more ambience signals for provision to the recipient device.Type: GrantFiled: March 4, 2013Date of Patent: May 17, 2016Assignee: Nokia Technologies OyInventors: Anssi Sakari Ramo, Lasse Juhani Laaksonen, Miika Tapani Vilermo, Adriana Vasilache
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Publication number: 20160111100Abstract: An apparatus comprising: a parameter determiner configured to determine for a frame of at least one audio signal a set of frame audio signal multi-channel parameters; a parameter selector configured to select for the frame a sub-set of the set of frame audio signal multi-channel parameters based on an error value associated with the sub-set of the set of frame audio signal multi-channel parameters; and parameter encoder configured to generate an encoded frame audio signal multi-channel parameter based on the selected sub-set of the set of frame audio signal multi-channel parameters.Type: ApplicationFiled: May 28, 2013Publication date: April 21, 2016Applicant: Nokia Technologies OyInventors: Anssi Sakari Ramo, Adriana Vasilache, Lasse Juhani Laaksonen
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Patent number: 9318115Abstract: It is inter alia disclosed to apply a function on a string in accordance with a rule of a set of rules, the string comprising first and second representatives, wherein the function ensures that the string comprises at least one of a predetermined representative at an end of the string after the function has been applied; and to determine a representation of the string, wherein said representation comprises at least one encoded representative, each of said at least one encoded representative being associated with at least one representative of the string, wherein said representation does not comprise an encoded representative being associated with at least one of the at least one predetermined representative at the end of the string.Type: GrantFiled: November 26, 2010Date of Patent: April 19, 2016Assignee: Nokia Technologies OyInventors: Adriana Vasilache, Lasse Juhani Laaksonen, Anssi Sakari Rämö, Mikko Tapio Tammi
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Publication number: 20160078877Abstract: An apparatus comprising: a channel analyser configured to determine for a first frame of at least one audio signal a set of first frame audio signal multi-channel parameters; a multichannel difference selector configured to select for the first frame groups of elements of the set of first frame audio signal multi-channel parameters based on a value associated with the first frame; and a multichannel parameter encoder configured to generate an encoded first frame audio signal multi-channel parameter based on the selected groups of elements of the set of first frame audio signal multi-channel parameters.Type: ApplicationFiled: April 26, 2013Publication date: March 17, 2016Inventors: Adriana VASILACHE, Lasse Juhani LAAKSONEN, Anssi Sakari RÄMÖ
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Patent number: 9280976Abstract: An apparatus comprising: a coding rate determiner configured to determine a first coding bitrate for at least one first frame audio signal multi-channel parameter and a second coding bitrate for at least one second frame audio signal multi-channel parameter, wherein the combined first and second coding bitrate is less than a bitrate limit; a channel analyser configured to determine for a first frame the at least one first frame audio signal multi-channel parameter and configured to determine for a second frame the at least one second frame audio signal multi-channel parameter; a multi-channel parameter determiner configured to generate an encoded first frame audio signal multi-channel parameter within the first coding bitrate from the at least one first frame audio signal multi-channel parameter and configured to generate an encoded at least one second frame audio signal parameter within the second coding bitrate from the at least one second frame audio signal multi-channel parameter; and a multiplexer configType: GrantFiled: December 26, 2013Date of Patent: March 8, 2016Assignee: Nokia Technologies OyInventors: Adriana Vasilache, Lasse Juhani Laaksonen, Anssi Sakari Rämö
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Publication number: 20160064004Abstract: It is inter alia disclosed a method comprising: determining an indication of similarity between a first audio frame of a multiple channel input audio signal and a second audio frame of the multiple channel input audio signal; and determining a coding mode for a multiple channel audio spatial encoder dependent on each of: data indicating a coding mode of a mono audio encoder for the first audio frame of the multiple channel input audio signal; a coding mode of the multichannel spatial audio encoder for the first audio frame of the multiple channel input audio signal; and the indication of similarity.Type: ApplicationFiled: April 15, 2013Publication date: March 3, 2016Inventors: Lasse Juhani LAAKSONEN, Adriana VASILACHE, Anssi Sakari RÄMÖ, Mikko Tapio TAMMI
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Publication number: 20160035357Abstract: An apparatus comprising: a channel analyser configured to determine for a first frame of at least one audio signal a set of first frame audio signal multi-channel parameters; a multichannel parameter selector configured to select for the first frame a sub-set of the set of first frame audio signal multi-channel parameters based on a value associated with the first frame; and a multichannel parameter encoder configured to generate an encoded first frame audio signal multi-channel parameter based on the selected sub-set of the set of first frame audio signal multi-channel parameters.Type: ApplicationFiled: March 20, 2013Publication date: February 4, 2016Inventors: Adriana VASILACHE, Lasse Juhani LAAKSONEN, Anssi Sakari RÄMÖ
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Publication number: 20160027445Abstract: An apparatus comprising a mapper configured to map an instance of a parameter according to a first mapping to generate a first mapped instance; a remapper configured to remap the first mapped instance dependent on the frequency distribution of mapped instances to generate a remapped instance with an associated order position; and an encoder configured to encode the remapped instance dependent on an order position of the remapped instance.Type: ApplicationFiled: May 29, 2012Publication date: January 28, 2016Applicant: Nokia CorporationInventors: Adriana VASILACHE, Lasse Juhani LAAKSONEN, Anssi Sakari RÄMÖ
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Publication number: 20160019900Abstract: An apparatus comprising: a vector generator configured to generate a first vector of parameters defining at least one audio signal; a vector extender configured to extend the first vector of parameters to a second vector, where the first vector is length n and the second vector is length n, where m is greater than n; a vector transformer configured to transform the second vector, a lattice quantizer configured to lattice quantize the transformed second vector; and a reverse transformer configured to reverse transform the lattice quantized transformed second vector, such that the first n components of a reverse transformed lattice quantized transformed second vector are a lattice quantization of the first vector.Type: ApplicationFiled: February 1, 2013Publication date: January 21, 2016Inventors: Adriana VASILACHE, Lasse Juhani LAAKSONEN, Anssi Sakari RÄMÖ