Patents by Inventor Venkatraman Srinivasa Atti
Venkatraman Srinivasa Atti 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: 20190141598Abstract: Aspects of the present disclosure provide techniques and apparatus for wireless communication, and more particularly, increasing network coverage using rate adaption. The techniques include adjusting a cell transition threshold based on, for example, maximum packet loss rates (PLRs) for a VOIP terminal, for example, taking into consideration application layer redundancy employed at the terminal. Numerous other aspects are provided.Type: ApplicationFiled: October 26, 2018Publication date: May 9, 2019Inventors: Nikolai Konrad LEUNG, Venkatraman Srinivasa ATTI
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Patent number: 10063609Abstract: Methods and apparatus are disclosed for communication in a conference using a single source multi-unicast architecture. In one aspect, a method for communication between participants in a conference is provided. The method includes receiving, from a first device, a first message for establishing a conference, the first message including a list of codec types for use in the conference. The method further includes transmitting, at a second device, a second message to a third device, the second message offering one or more codec types from the list of codec types. The method further includes processing, at the second device, a first data stream having a first codec type from the one or more codec types.Type: GrantFiled: August 3, 2016Date of Patent: August 28, 2018Assignee: QUALCOMM IncorporatedInventors: Nikolai Konrad Leung, Venkatraman Srinivasa Atti
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Patent number: 9741350Abstract: A particular method includes determining, based on an inter-line spectral pair (LSP) spacing corresponding to an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes, in response to determining that the audio signal includes the component, adjusting a gain parameter corresponding to the audio signal. For example, the gain parameter may be adjusted via gain attenuation and/or gain smoothing.Type: GrantFiled: August 5, 2013Date of Patent: August 22, 2017Assignee: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatesh Krishnan
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Patent number: 9711156Abstract: A particular method includes determining, based on spectral information corresponding to an audio signal that includes a low-band portion and a high-band portion, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes filtering the high-band portion of the audio signal and generating an encoded signal. Generating the encoded signal includes determining gain information based on a ratio of a first energy corresponding to filtered high-band output to a second energy corresponding to the low-band portion to reduce an audible effect of the artifact-generating condition.Type: GrantFiled: August 5, 2013Date of Patent: July 18, 2017Assignee: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatesh Krishnan, Vivek Rajendran, Stephane Pierre Villette
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Patent number: 9601125Abstract: A method includes receiving a first value of a mixing factor. The first value corresponds to a first portion of an audio signal received at an audio encoder. The method includes receiving a second value of the mixing factor. The second value corresponds to a second portion of the audio signal. The method also includes generating a third value of the mixing factor at least partially based on the first value and the second value and mixing an excitation signal with modulated noise based on the third value. Another method includes determining a first set of spectral frequency values corresponding to an audio signal and determining a second set of spectral frequency values that approximates the first set of spectral frequency values. A gain value corresponding to at least a portion of the audio signal is adjusted based on a difference between the first set and the second set.Type: GrantFiled: August 28, 2013Date of Patent: March 21, 2017Assignee: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatesh Krishnan
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Publication number: 20170054777Abstract: Methods and apparatus are disclosed for communication in a conference using a single source multi-unicast architecture. In one aspect, a method for communication between participants in a conference is provided. The method includes receiving, from a first device, a first message for establishing a conference, the first message including a list of codec types for use in the conference. The method further includes transmitting, at a second device, a second message to a third device, the second message offering one or more codec types from the list of codec types. The method further includes processing, at the second device, a first data stream having a first codec type from the one or more codec types.Type: ApplicationFiled: August 3, 2016Publication date: February 23, 2017Inventors: Nikolai Konrad Leung, Venkatraman Srinivasa Atti
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Patent number: 9263054Abstract: A method for controlling an average encoding rate by an electronic device is described. The method includes obtaining a speech signal. The method also includes determining a first average rate. The method further includes determining a first threshold based on the first average rate. The method additionally includes controlling the average encoding rate by determining at least one other threshold based on the first threshold. The method also includes sending an encoded speech signal.Type: GrantFiled: August 30, 2013Date of Patent: February 16, 2016Assignee: QUALCOMM IncorporatedInventors: Subasingha Shaminda Subasingha, Vivek Rajendran, Venkatesh Krishnan, Venkatraman Srinivasa Atti
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Patent number: 9111531Abstract: Improved audio classification is provided for encoding applications. An initial classification is performed, followed by a finer classification, to produce speech classifications and music classifications with higher accuracy and less complexity than previously available. Audio is classified as speech or music on a frame by frame basis. If the frame is classified as music by the initial classification, that frame undergoes a second, finer classification to confirm that the frame is music and not speech (e.g., speech that is tonal and/or structured that may not have been classified as speech by the initial classification). Depending on the implementation, one or more parameters may be used in the finer classification. Example parameters include voicing, modified correlation, signal activity, and long term pitch gain.Type: GrantFiled: December 20, 2012Date of Patent: August 18, 2015Assignee: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Ethan Robert Duni
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Patent number: 9099098Abstract: In speech processing systems, compensation is made for sudden changes in the background noise in the average signal-to-noise ratio (SNR) calculation. SNR outlier filtering may be used, alone or in conjunction with weighting the average SNR. Adaptive weights may be applied on the SNRs per band before computing the average SNR. The weighting function can be a function of noise level, noise type, and/or instantaneous SNR value. Another weighting mechanism applies a null filtering or outlier filtering which sets the weight in a particular band to be zero. This particular band may be characterized as the one that exhibits an SNR that is several times higher than the SNRs in other bands.Type: GrantFiled: November 6, 2012Date of Patent: August 4, 2015Assignee: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatesh Krishnan
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Publication number: 20140236587Abstract: A method for controlling an average encoding rate by an electronic device is described. The method includes obtaining a speech signal. The method also includes determining a first average rate. The method further includes determining a first threshold based on the first average rate. The method additionally includes controlling the average encoding rate by determining at least one other threshold based on the first threshold. The method also includes sending an encoded speech signal.Type: ApplicationFiled: August 30, 2013Publication date: August 21, 2014Applicant: QUALCOMM IncorporatedInventors: Subasingha Shaminda Subasingha, Vivek Rajendran, Venkatesh Krishnan, Venkatraman Srinivasa Atti
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Publication number: 20140229171Abstract: A particular method includes determining, based on spectral information corresponding to an audio signal that includes a low-band portion and a high-band portion, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes filtering the high-band portion of the audio signal and generating an encoded signal. Generating the encoded signal includes determining gain information based on a ratio of a first energy corresponding to filtered high-band output to a second energy corresponding to the low-band portion to reduce an audible effect of the artifact-generating condition.Type: ApplicationFiled: August 5, 2013Publication date: August 14, 2014Applicant: Qualcomm IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatesh Krishnan, Vivek Rajendran, Stephane Pierre Villette
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Publication number: 20140229172Abstract: A method includes receiving a first value of a mixing factor. The first value corresponds to a first portion of an audio signal received at an audio encoder. The method includes receiving a second value of the mixing factor. The second value corresponds to a second portion of the audio signal. The method also includes generating a third value of the mixing factor at least partially based on the first value and the second value and mixing an excitation signal with modulated noise based on the third value. Another method includes determining a first set of spectral frequency values corresponding to an audio signal and determining a second set of spectral frequency values that approximates the first set of spectral frequency values. A gain value corresponding to at least a portion of the audio signal is adjusted based on a difference between the first set and the second set.Type: ApplicationFiled: August 28, 2013Publication date: August 14, 2014Applicant: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatash Krishnan
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Publication number: 20140229170Abstract: A particular method includes determining, based on an inter-line spectral pair (LSP) spacing corresponding to an audio signal, that the audio signal includes a component corresponding to an artifact-generating condition. The method also includes, in response to determining that the audio signal includes the component, adjusting a gain parameter corresponding to the audio signal. For example, the gain parameter may be adjusted via gain attenuation and/or gain smoothing.Type: ApplicationFiled: August 5, 2013Publication date: August 14, 2014Applicant: QUALCOMM IncorporatedInventors: Venkatraman Srinivasa Atti, Venkatesh Krishnan