Patents by Inventor Srinivasan Rajagopalan
Srinivasan Rajagopalan 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: 20140086145Abstract: Techniques for optimized HARQ recombining are provided. In one exemplary embodiment, a method for wireless communication comprises receiving a broadcast message to determine a timing of a transmission window, receiving at least one transmission within the transmission window, and determining whether the at least one transmission is successfully decoded. The method further comprises instructing a lower protocol layer to ignore remaining transmissions within the transmission window upon a determination that the at least one transmission is successfully decoded, wherein the remaining transmissions and the at least one transmission comprise duplicate copies of a message segment.Type: ApplicationFiled: March 13, 2013Publication date: March 27, 2014Applicant: QUALCOMM INCORPORATEDInventors: Vasanth Kumar Ramkumar, Muralidharan Murugan, Pratik Kotkar, Aparna S. Ghorpade, Srinivasan Rajagopalan
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Patent number: 8602113Abstract: Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated device includes one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more cylindrical bodies, and a coating on at least a portion of the inner surface, the outer surface, or a combination thereof of the one or more cylindrical bodies. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.Type: GrantFiled: March 30, 2011Date of Patent: December 10, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Hyun Woo Jin, Srinivasan Rajagopalan, Adnan Ozekcin, Tabassumul Haque, Mehmet Deniz Ertas, Bo Zhao, Jeffrey Roberts Bailey, Terris Field Walker
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Publication number: 20130322331Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus is a UE. The UE transmits data packets. The UE determines to implement a flow control to reduce a transmission rate of the data packets. The UE determines whether the data packets include known or potential real-time data packets. The UE refrains from implementing the flow control to reduce the transmission rate of the known/potential real-time data packets when the data packets include known/potential real-time data packets.Type: ApplicationFiled: March 7, 2013Publication date: December 5, 2013Applicant: QUALCOMM IncorporatedInventors: Vasanth Kumar RAMKUMAR, Navid EHSAN, Praveen N. KONA, Srinivasan RAJAGOPALAN, Bao Vinh NGUYEN
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Patent number: 8590627Abstract: Provided are coated sleeved oil and gas well production devices and methods of making and using such coated sleeved devices. In one form, the coated sleeved oil and gas well production device includes one or more cylindrical bodies, one or more sleeves proximal to the outer diameter or inner diameter of the one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more sleeves, and a coating on at least a portion of the inner sleeve surface, the outer sleeve surface, or a combination thereof of the one or more sleeves. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated sleeved oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.Type: GrantFiled: February 22, 2011Date of Patent: November 26, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Hyun Woo Jin, Srinivasan Rajagopalan, Adnan Ozekcin, Tabassumul Haque, Mehmet Deniz Ertas, Bo Zhao, Jeffrey Roberts Bailey, Terris Field Walker
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Patent number: 8561707Abstract: Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly, a coiled tubing coupled to a bottom hole assembly, or a casing string coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, hardbanding on at least a portion of the exposed outer surface of the body assembly, an ultra-low friction coating on at least a portion of the hardbanding, wherein the ultra-low friction coating comprises one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating.Type: GrantFiled: March 8, 2011Date of Patent: October 22, 2013Assignee: ExxonMobil Research and Engineering CompanyInventors: Hyun Woo Jin, Srinivasan Rajagopalan, Adnan Ozekcin, Tabassumul Haque, Mehmet Deniz Ertas, Bo Zhao, Jeffrey Roberts Bailey, Terris Field Walker
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Publication number: 20110220415Abstract: Provided are drill stem assemblies with ultra-low friction coatings for subterraneous drilling operations. In one form, the coated drill stem assemblies for subterraneous rotary drilling operations include a body assembly with an exposed outer surface including a drill string coupled to a bottom hole assembly, a coiled tubing coupled to a bottom hole assembly, or a casing string coupled to a bottom hole assembly and an ultra-low friction coating on at least a portion of the exposed outer surface of the body assembly, hardbanding on at least a portion of the exposed outer surface of the body assembly, an ultra-low friction coating on at least a portion of the hardbanding, wherein the ultra-low friction coating comprises one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating.Type: ApplicationFiled: March 8, 2011Publication date: September 15, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Hyun Woo Jin, Srinivasan Rajagopalan, Adnan Ozekcin, Tabassumul Haque, Mehmet Deniz Ertas, Bo Zhao, Jeffrey Roberts Bailey, Terris Field Walker
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Publication number: 20110220348Abstract: Provided are coated oil and gas well production devices and methods of making and using such coated devices. In one form, the coated device includes one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more cylindrical bodies, and a coating on at least a portion of the inner surface, the outer surface, or a combination thereof of the one or more cylindrical bodies. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.Type: ApplicationFiled: March 30, 2011Publication date: September 15, 2011Applicant: ExxonMobil Research and Engineering CompanyInventors: Hyun Woo Jin, Srinivasan Rajagopalan, Adnan Ozekcin, Tabassumul Haque, Mehmet Deniz Ertas, Bo Zhao, Jeffrey Roberts Bailey, Terris Field Walker
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Patent number: 8019801Abstract: A system and method for rating the validity of multiple data processing algorithms A1-An on a set of multi-dimensional input data I where P1-Pn is the output data produced by the competing algorithms. Processing steps include: (1) computing the Fourier Transform or the phase congruence of the input data I, (2) computing the Fourier Transform or the phase congruence of the output data P1-Pn, (3) computing the phase of the data computed at step 1, (4) computing the phases of the data computed at step 2, and (5) computing a similarity metric, such as the normalized cross correlation of each phase computed at step 4 with the corresponding phase computed at step 3. The similarity metrics computed at step 5 can be ordered to provide a ranking of the algorithm validity.Type: GrantFiled: June 23, 2005Date of Patent: September 13, 2011Assignee: Mayo Foundation for Medical Education and ResearchInventors: Richard A. Robb, Srinivasan Rajagopalan
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Publication number: 20110203791Abstract: Provided are coated sleeved oil and gas well production devices and methods of making and using such coated sleeved devices. In one form, the coated sleeved oil and gas well production device includes one or more cylindrical bodies, one or more sleeves proximal to the outer diameter or inner diameter of the one or more cylindrical bodies, hardbanding on at least a portion of the exposed outer surface, exposed inner surface, or a combination of both exposed outer or inner surface of the one or more sleeves, and a coating on at least a portion of the inner sleeve surface, the outer sleeve surface, or a combination thereof of the one or more sleeves. The coating includes one or more ultra-low friction layers, and one or more buttering layers interposed between the hardbanding and the ultra-low friction coating. The coated sleeved oil and gas well production devices may provide for reduced friction, wear, erosion, corrosion, and deposits for well construction, completion and production of oil and gas.Type: ApplicationFiled: February 22, 2011Publication date: August 25, 2011Applicant: EXXONMOBIL RESEARCH AND ENGINEERING COMPANYInventors: Hyun Woo Jin, Srinivasan Rajagopalan, Adnan Ozekcin, Tabassumul Haque, Mehmet Deniz Ertas, Bo Zhao, Jeffrey Roberts Bailey, Terris Field Walker
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Patent number: 7937851Abstract: A method and apparatus for continuously treating a moist biomass feedstock is disclosed. The method includes treating a biomass feedstock with a swelling agent in a pressurized first vessel, transferring the feedstock to a second vessel at a lower operating pressure than the first vessel such that the biomass fibers rupture. At least portions the swelling agent, and/or the moisture are recycled in the process.Type: GrantFiled: November 9, 2005Date of Patent: May 10, 2011Assignee: Michigan Biotechnology InstituteInventors: Srinivasan Rajagopalan, Tonya Tiedje, Darold McCalla
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Publication number: 20110078182Abstract: Systems and methods for providing instructions for loading objects into a storage space and for generating an optimized list of vehicles. The methods include generating a list of objects including receiving an object characteristic, retrieving an object based on the object characteristic, and receiving a selection of a retrieved object. The methods further include retrieving dimensional data associated with objects and retrieving dimensional data associated with a storage space of a vehicle.Type: ApplicationFiled: September 28, 2009Publication date: March 31, 2011Inventors: Peter A. Fenyes, John A. Cafeo, Qi D. Van Eikema Hommes, Artemis Kloess, Srinivasan Rajagopalan, Jian Tu
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Patent number: 7718109Abstract: Techniques for generating tissue support structure are presented. A curved minimal surface shape is determined as a template for generating a tissue support structure. The determined curved minimal surface shape is numerically or functionally defined to create data representing the shape. The data is exported to a rapid prototyping system to generate a plurality of tissue support structures having a curved minimal surface. The tissue support structure can have a pore sub-section and a non-pore sub-section divided by a non-intersecting two-sided surface. A number of characteristics of the tissue support structure can be modulated including porosity and mechanical strength.Type: GrantFiled: February 14, 2006Date of Patent: May 18, 2010Assignee: Mayo Foundation for Medical Education and ResearchInventors: Richard A. Robb, Srinivasan Rajagopalan
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Publication number: 20090098251Abstract: A method and apparatus for continuously treating a moist biomass feedstock is disclosed. The method includes treating a biomass feedstock with a swelling agent in a pressurized first vessel, transferring the feedstock to a second vessel at a lower operating pressure than the first vessel such that the biomass fibers rupture. At least portions the swelling agent, and/or the moisture are recycled in the process.Type: ApplicationFiled: November 9, 2005Publication date: April 16, 2009Inventors: Srinivasan Rajagopalan, Tonya Tiedje, Darold McCalla
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Patent number: 7363401Abstract: A method and apparatus is presented that can provide first and second windows for driving data onto a bus in dependence on bus clock frequency. In one example, the speed of the bus clock is determined by a component such as a processor. If the bus clock frequency is at a first, relatively high frequency, data is driven onto the bus in an earlier time window (e.g., near the rising edge of the bus clock signal). If the bus clock frequency is at a second, lower frequency, data is driven onto the bus in a second, later time window (e.g., near the center of the high level of the bus clock). Accordingly, the time window for receiving the data driven onto the bus need not be changed (e.g., near the rising edge of the next bus clock signal) allowing components to work effectively with both bus clock frequencies.Type: GrantFiled: December 15, 1997Date of Patent: April 22, 2008Assignee: Intel CorporationInventor: Srinivasan Rajagopalan
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Patent number: 7354988Abstract: A method for manufacturing a conductive composition comprises blending a polymer precursor with a single wall carbon nanotube composition; and polymerizing the polymer precursor to form an organic polymer. The method may be advantageously used for manufacturing automotive components, computer components, and other components where electrical conductivity properties are desirable.Type: GrantFiled: November 11, 2005Date of Patent: April 8, 2008Assignee: General Electric CompanyInventors: Sanjay Gurbasappa Charati, Dibakar Dhara, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Abbas Alli Shaikh, Mark D. Elkovitch
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Patent number: 7309727Abstract: Disclosed herein is an electrically conductive precursor composition comprising an organic polymer precursor; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and an optional nanosized conductive filler. A conductive composition comprises an organic polymer; a single wall nanotube composition, wherein the single wall nanotube composition contains at least 0.1 wt % of production related impurities; and a nanosized conductive filler.Type: GrantFiled: September 29, 2003Date of Patent: December 18, 2007Assignee: General Electric CompanyInventors: Mark Elkovitch, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Sai-Pei Ting
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Patent number: 7190163Abstract: A training module is used to produce a database that stores histogram landmarks for MR images acquired with different scan parameters such as TR, TE flip angle and inversion recovery time. This database is used by a transformation module which enables an MR image acquired at one prescribed set of scan parameters to be transformed into MR images that simulate MR images acquired with different scan parameters.Type: GrantFiled: February 22, 2005Date of Patent: March 13, 2007Assignee: Mayo Foundation for Medical Education and ResearchInventors: Srinivasan Rajagopalan, Richard A. Robb
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Publication number: 20060249875Abstract: Techniques for generating tissue support structure are presented. A curved minimal surface shape is determined as a template for generating a tissue support structure. The determined curved minimal surface shape is numerically or functionally defined to create data representing the shape. The data is exported to a rapid prototyping system to generate a plurality of tissue support structures having a curved minimal surface. The tissue support structure can have a pore sub-section and a non-pore sub-section divided by a non-intersecting two-sided surface. A number of characteristics of the tissue support structure can be modulated including porosity and mechanical strength.Type: ApplicationFiled: February 14, 2006Publication date: November 9, 2006Inventors: Richard Robb, Srinivasan Rajagopalan
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Patent number: 7026432Abstract: A method for manufacturing a conductive composition comprises blending a polymer precursor with a single wall carbon nanotube composition; and polymerizing the polymer precursor to form an organic polymer. The method may be advantageously used for manufacturing automotive components, computer components, and other components where electrical conductivity properties are desirable.Type: GrantFiled: March 18, 2004Date of Patent: April 11, 2006Assignee: General Electric CompanyInventors: Sanjay Gurbasappa Charati, Dibakar Dhara, Mark Elkovitch, Soumyadeb Ghosh, Nitin Mutha, Srinivasan Rajagopalan, Abbas Alli Shaikh
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Publication number: 20060066346Abstract: An apparatus comprising a voltage divider, a counter and a comparison circuit. The voltage divider is coupled to a first reference and includes a reference impedance and an adjustable impedance circuit coupled to the reference impedance circuit at a first node. The adjustable impedance circuit includes inputs to adjust the impedance according to a weighted coding pattern. The counter includes at least one input to cause the counter to count and change counter outputs in accordance with a weighted coding pattern that includes a pseudo-thermometer code. The counter outputs are coupled to the inputs of the adjustable impedance circuit. The comparison circuit is coupled to the first node and causes the counter to count in accordance with an outcome of a comparison between the first node and a second reference.Type: ApplicationFiled: September 28, 2004Publication date: March 30, 2006Inventors: Eugene Tat Lim, Kok Lim, Yin Liew, Srinivasan Rajagopalan