Patents by Inventor Sadhana Gupta
Sadhana Gupta 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: 10347262Abstract: Systems, methods, apparatus, and articles of manufacture to improve timestamp transition resolution of watermarks are disclosed. An example system includes a watermark detector to detect watermarks and a decoder to decode timestamps in respective ones of the watermarks. The example system also includes a timestamp transition resolution enhancer that estimates a first transition window indicative of a transition between a first time period to a second time period based on a first one of the timestamps and a second one of the timestamps. The timestamp transition resolution enhancer also estimates, when the first transition window does not satisfy a threshold, a second transition window indicative of a transition between the second time period and a third time period based on the second timestamp and a third one of the timestamps.Type: GrantFiled: November 1, 2017Date of Patent: July 9, 2019Assignee: The Nielsen Company (US), LLCInventors: Ken Joseph Frett, Vladimir Kuznetsov, David Gish, Sadhana Gupta
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Publication number: 20190115034Abstract: Systems, methods, apparatus, and articles of manufacture to improve timestamp transition resolution of watermarks are disclosed. An example system includes a watermark detector to detect watermarks and a decoder to decode timestamps in respective ones of the watermarks. The example system also includes a timestamp transition resolution enhancer that estimates a first transition window indicative of a transition between a first time period to a second time period based on a first one of the timestamps and a second one of the timestamps. The timestamp transition resolution enhancer also estimates, when the first transition window does not satisfy a threshold, a second transition window indicative of a transition between the second time period and a third time period based on the second timestamp and a third one of the timestamps.Type: ApplicationFiled: November 1, 2017Publication date: April 18, 2019Inventors: Ken Joseph FRETT, Vladimir KUZNETSOV, David GISH, Sadhana GUPTA
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Patent number: 10236005Abstract: A method for generating a signature is disclosed. As part of the method, a first number of bits are identified in respective rows of an audio signature matrix that are determined to be the strongest bits in the row, bits of the audio signature matrix are replaced with respective cells having values depending on whether the respective bits are included in the first number of bits, a set of uniformly distributed numbers are generated within a range of numbered locations corresponding to cells of the audio signature matrix; numerical distances are determined, from respective numbers in the set of uniformly distributed numbers, to the numbered locations of the matrix, associated with nearest occurrences of a first value. A set of integers is generated based on the distances.Type: GrantFiled: June 8, 2017Date of Patent: March 19, 2019Assignee: THE NIELSEN COMPANY (US), LLCInventors: Venugopal Srinivasan, Alexander Topchy, Sadhana Gupta
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Publication number: 20180358027Abstract: A method for generating a signature is disclosed. As part of the method, a first number of bits are identified in respective rows of an audio signature matrix that are determined to be the strongest bits in the row, bits of the audio signature matrix are replaced with respective cells having values depending on whether the respective bits are included in the first number of bits, a set of uniformly distributed numbers are generated within a range of numbered locations corresponding to cells of the audio signature matrix; numerical distances are determined, from respective numbers in the set of uniformly distributed numbers, to the numbered locations of the matrix, associated with nearest occurrences of a first value. A set of integers is generated based on the distances.Type: ApplicationFiled: June 8, 2017Publication date: December 13, 2018Inventors: Venugopal Srinivasan, Alexander Topchy, Sadhana Gupta
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Publication number: 20180165784Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example metering apparatus disclosed herein include detector means for detecting watermarks in a media signal. Disclosed example metering apparatus also include controller means for operating the detector means to (1) detect a first watermark in the media signal, and (2) cycle between sleep intervals and active intervals to detect a second watermark at a second location in the media signal relative to a first location of the first watermark in the media signal after the first watermark has been verified.Type: ApplicationFiled: February 9, 2018Publication date: June 14, 2018Inventors: David Gish, Sadhana Gupta, Vladimir Kuznetsov, Wendell D. Lynch, Alan R. Neuhauser
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Patent number: 9904968Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example watermark detection methods disclosed herein include operating a watermark detector in a first operating mode to detect a first watermark in a media signal. Disclosed example watermark detection methods also include, in response to the first watermark being verified, operating the watermark detector in a second operating mode in which the watermark detector cycles between sleep intervals and active intervals to detect a second watermark at a second location in the media signal relative to a first location of the first watermark in the media signal.Type: GrantFiled: April 24, 2017Date of Patent: February 27, 2018Assignee: The Nielsen Company (US), LLCInventors: David Gish, Sadhana Gupta, Vladimir Kuznetsov, Wendell D. Lynch, Alan R. Neuhauser
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Publication number: 20170228848Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example watermark detection methods disclosed herein include operating a watermark detector in a first operating mode to detect a first watermark in a media signal. Disclosed example watermark detection methods also include, in response to the first watermark being verified, operating the watermark detector in a second operating mode in which the watermark detector cycles between sleep intervals and active intervals to detect a second watermark at a second location in the media signal relative to a first location of the first watermark in the media signal.Type: ApplicationFiled: April 24, 2017Publication date: August 10, 2017Inventors: David Gish, Sadhana Gupta, Vladimir Kuznetsov, Wendell D. Lynch, Alan R. Neuhauser
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Patent number: 9641857Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example watermark detection methods disclosed herein include initiating a first search interval in which to attempt to detect watermarks in a media signal. Disclosed example watermark detection methods also initiating a sleep mode upon expiration of the first search interval in response to no valid watermarks being detected during the first search interval. Disclosed example watermark detection methods further include, upon expiration of a first sleep interval after initiation of the sleep mode, initiating a second search interval.Type: GrantFiled: August 8, 2016Date of Patent: May 2, 2017Assignee: The Nielsen Company (US), LLCInventors: David Gish, Sadhana Gupta, Vladimir Kuznetsov, Wendell D. Lynch, Alan R. Neuhauser
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Publication number: 20160353124Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example watermark detection methods disclosed herein include initiating a first search interval in which to attempt to detect watermarks in a media signal. Disclosed example watermark detection methods also initiating a sleep mode upon expiration of the first search interval in response to no valid watermarks being detected during the first search interval. Disclosed example watermark detection methods further include, upon expiration of a first sleep interval after initiation of the sleep mode, initiating a second search interval.Type: ApplicationFiled: August 8, 2016Publication date: December 1, 2016Inventors: David Gish, Sadhana Gupta, Vladimir Kuznetsov, Wendell D. Lynch, Alan R. Neuhauser
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Patent number: 9418395Abstract: Methods, apparatus, systems and articles of manufacture (e.g., physical storage media) to implement power efficient detection of watermarks in media signals are disclosed. Example watermark detection methods disclosed herein include operating a watermark detector in a first operating mode to search for a first watermark in a media signal. Such disclosed example methods also include, in response to detecting the first watermark, determining whether the first watermark satisfies a first condition. Such disclosed example methods further include, in response to determining the first watermark satisfies the first condition, operating the watermark detector in a second operating mode in which the watermark detector cycles between a sleep interval and an active interval to detect a second watermark at a second location in the media signal relative to a first location of the first watermark in the media signal.Type: GrantFiled: December 31, 2014Date of Patent: August 16, 2016Assignee: The Nielsen Company (US), LLCInventors: David Gish, Sadhana Gupta, Vladimir Kuznetsov, Wendell D. Lynch, Alan R. Neuhauser
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Patent number: 7173727Abstract: A computer implemented method of rasterizing a page in a page description language efficiently utilizes the resources of a multiprocessor integrated circuit by spawning of subtasks from a RISC type processor to one or more DSP type processors. The RISC type processor interprets the page in the page description language and detects a Y coordinate of edge intersection using the floating point calculation unit. The DSP type processors sort polygon edges in increasing Y coordinate and detect a Y coordinate of edge intersections via successive midpoint approximation using an integer multiplier unit.Type: GrantFiled: December 30, 2003Date of Patent: February 6, 2007Assignee: Texas Instruments IncorporatedInventors: Sadhana Gupta, Suvarna Harish Kumar, Venkat V. Easwar, Arunabha Ghose
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Publication number: 20040257607Abstract: A computer implemented method of clipping to a clip polygon and trapezoid formation employs an edge array rather than a set linked list from an array of pointers equal in number to the number of scan lines. This eliminates storage of linked list pointers which in the prior art included many null pointers resulting in better memory utilization. This method sorts the active edge table only at edge intersections and vertices, thus eliminating much unneeded sorting. This method permits integrated clipping of a subject polygon by a clip polygon and forming trapezoids filling the clipped area by activating trapezoid formation at every vertex of either polygon and at every edge intersection.Type: ApplicationFiled: December 30, 2003Publication date: December 23, 2004Inventors: Sadhana Gupta, Suvarna Harish Kumar, Venkat V. Easwar, Arunabha Ghose
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Publication number: 20040160627Abstract: This invention cures many inefficiencies with known scan conversion methods. This invention employs a edge array rather than a set linked list from an array of pointers equal in number to the number of scan lines. This invention thus eliminates storage of linked list pointers which in the prior art included many null pointers resulting in better memory utilization. es on-chip memory when employing a single chip microprocessor. This invention sorts the active edge table only at edge intersections and vertices, thus eliminating much unneeded sorting. This invention permits integrated clipping of a subject polygon by a clip polygon and forming trapezoids filling the clipped area by activating trapezoid formation at every vertex of either polygon and at every edge intersection. This process saves code space and computer processing time. This invention efficiently utilizes the resources of a multiprocessor integrated circuit by spawning of subtasks from a RISC type processor to one or more DSP type processors.Type: ApplicationFiled: December 30, 2003Publication date: August 19, 2004Inventors: Sadhana Gupta, Suvarna Harish Kumar, Venkat V. Easwar, Arunabha Ghose
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Patent number: 6693719Abstract: This invention cures many inefficiencies with known scan conversion methods. This invention employs an edge array rather than a set linked list from an array of pointers equal in number to the number of scan lines. This invention thus eliminates storage of linked list pointers which in the prior art included many null pointers resulting in better memory utilization. This invention sorts the active edge table only at edge intersections and vertices, thus eliminating much unneeded sorting. This invention permits integrated clipping of a subject polygon by a clip polygon and forming trapezoids filling the clipped area by activating trapezoid formation at every vertex of either polygon and at every edge intersection. This process saves code space and computer processing time. This invention efficiently utilizes the resources of a multiprocessor integrated circuit by spawning of subtasks from a RISC type processor to one or more DSP type processors.Type: GrantFiled: September 16, 1999Date of Patent: February 17, 2004Assignee: Texas Instruments IncorporatedInventors: Sadhana Gupta, Suvarna Harish Kumar, Venkat V. Easwar, Arunabha Ghose
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Patent number: 6567182Abstract: This invention cures many inefficiencies with known scan conversion methods. This invention employs a edge array rather than a set linked list from an array of pointers equal in number to the number of scan lines. This invention thus eliminates storage of linked list pointers which in the prior art included many null pointers resulting in better memory utilization. es on-chip memory when employing a single chip microprocessor. This invention sorts the active edge table only at edge intersections and vertices, thus eliminating much unneeded sorting. This invention permits integrated clipping of a subject polygon by a clip polygon and forming trapezoids filling the clipped area by activating trapezoid formation at every vertex of either polygon and at every edge intersection. This process saves code space and computer processing time. This invention efficiently utilizes the resources of a multiprocessor integrated circuit by spawning of subtasks from a RISC type processor to one or more DSP type processors.Type: GrantFiled: September 16, 1999Date of Patent: May 20, 2003Assignee: Texas Instruments IncorporatedInventors: Suvarna Harish Kumar, Sadhana Gupta, Lowell Boggs, Venkat V. Easwar, Arunabha Ghose