Patents by Inventor Sriram Rajagopal
Sriram Rajagopal 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: 20170325754Abstract: An imaging system (100) includes a gantry (101) that defines an examination region (106) and a subject support (112). The subject support includes a tabletop (116) that supports an object or subject in the examination region for a scan of the object or subject and a base (114) that supports the tabletop. A support frame (132) supports the base. The base is moveably affixed to the support frame and moves between a plurality of predetermined locations, which are based on corresponding distances from the gantry. A support frame drive system (134) moves the base alternatively to one of the plurality of predetermined locations in response to an input signal indicative of the one of the plurality of predetermined locations, which corresponds to a location of interest for the scan of the object or subject.Type: ApplicationFiled: August 3, 2017Publication date: November 16, 2017Inventors: Jeremy David PETTINATO, Shufang DONG, Sriram RAJAGOPAL, Joanne Marie STACK OYEN
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Patent number: 9750468Abstract: An imaging system (100) includes a gantry (101) that defines an examination region (106) and a subject support (112). The subject support includes a tabletop (116) that supports an object or subject in the examination region for a scan of the object or subject and a base (114) that supports the tabletop. A support frame (132) supports the base. The base is moveably affixed to the support frame and moves between a plurality of predetermined locations, which are based on corresponding distances from the gantry. A support frame drive system (134) moves the base alternatively to one of the plurality of predetermined locations in response to an input signal indicative of the one of the plurality of predetermined locations, which corresponds to a location of interest for the scan of the object or subject.Type: GrantFiled: April 8, 2013Date of Patent: September 5, 2017Assignee: KONINKLIJKE PHILIPS N.V.Inventors: Jeremy David Pettinato, Shufang Dong, Sriram Rajagopal, Joanne Marie Stack Oyen
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Patent number: 9252923Abstract: An ACK-NACK feedback message indicates which code words within a transport block that were received in error. The ACK-NACK message has a variable format based on the number of code words in the transport block and the number of code words received in error.Type: GrantFiled: December 30, 2014Date of Patent: February 2, 2016Assignee: Broadcom CorporationInventors: Gowrisankar Somichetty, Sriram Rajagopal
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Publication number: 20150113352Abstract: An ACK-NACK feedback message indicates which code words within a transport block that were received in error. The ACK-NACK message has a variable format based on the number of code words in the transport block and the number of code words received in error.Type: ApplicationFiled: December 30, 2014Publication date: April 23, 2015Applicant: Broadcom CorporationInventors: Gowrisankar Somichetty, Sriram Rajagopal
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Patent number: 9008734Abstract: A wireless communication device is disclosed that is capable of reduced power consumption. Uplink and downlink sub-frames in a WiMAX, 802.16m or LTE environment often include several vacant symbols during which power-hungry hardware and software components need not operate at full power. By analyzing a physical layer beacon and control information of a received signal, the specific locations of data bursts can be determined, as well as periods of needed operation of a receiver module to effectively decode those data bursts. The receiver module can otherwise be controlled to operate in a LOW power state during remaining periods of vacant time, thereby conserving power consumption and extending battery life.Type: GrantFiled: December 1, 2011Date of Patent: April 14, 2015Assignee: Broadcom CorporationInventors: Shashidhar Vummintala, Gowrisankar Somichetty, Sriram Rajagopal, Sindhu Verma, Manish Airy, Hariprasad Gangadharan, Ramasamy Palanisamy Pugazhanthi, Felix Varghese, Erik Stauffer
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Publication number: 20150078514Abstract: An imaging system (100) includes a gantry (101) that defines an examination region (106) and a subject support (112). The subject support includes a tabletop (116) that supports an object or subject in the examination region for a scan of the object or subject and a base (114) that supports the tabletop. A support frame (132) supports the base. The base is moveably affixed to the support frame and moves between a plurality of predetermined locations, which are based on corresponding distances from the gantry. A support frame drive system (134) moves the base alternatively to one of the plurality of predetermined locations in response to an input signal indicative of the one of the plurality of predetermined locations, which corresponds to a location of interest for the scan of the object or subject.Type: ApplicationFiled: April 8, 2013Publication date: March 19, 2015Inventors: Jeremy David Pettinato, Shufang Dong, Sriram Rajagopal, Joanne Marie Stack Oyen
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Patent number: 8977922Abstract: An Acknowledgement-Negative Acknowledgement (ACK-NACK) feedback message transmitted from a receiving device to a source device indicates which code words within a transport block transmitted from the source device to the receiving device were received in error by the receiving device. The ACK-NACK message has a variable format based on the number of code words in the transport block and the number of code words received in error.Type: GrantFiled: November 27, 2012Date of Patent: March 10, 2015Assignee: Broadcom CorporationInventors: Gowrisankar Somichetty, Sriram Rajagopal
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Publication number: 20150009836Abstract: In MIMO systems employing closed loop link adaptation, channel state information reporting can be enhanced using various types of side information, such as scheduling information indicating constraints on the scheduler related to the generation of downlink MIMO signals.Type: ApplicationFiled: July 31, 2013Publication date: January 8, 2015Applicant: BROADCOM CORPORATIONInventors: Djordje Tujkovic, Gowrisankar Somichetty, Mrinmoy Jana, Sriram Rajagopal
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Patent number: 8856609Abstract: Improved strategies for a Cyclical Redundancy Check (CRC) are disclosed. A CRC check of a codeblock may be initiated by a CRC decoder before receiving all of the bits by a corresponding FEC encoder. Furthermore, an incremental CRC check with respect to the data packet without the need for requesting passed through data from higher layers.Type: GrantFiled: March 29, 2012Date of Patent: October 7, 2014Assignee: Broadcom CorporationInventors: Shashidhar Vummintala, Arumugam Velayoudame, Gowrisankar Somichetty, Sriram Rajagopal, Sandip Solanki, Kalyana Krishnan
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Patent number: 8842760Abstract: A spatial multiplexing scheduler in, for example, an eNB or other base station, determines rank n precoders for UEs. Each UE reports the preferred precoder from this set of rank n precoders. The preferred precoder results in imbalance in performance over m layers compared to the rest of (n?m) layers. The UEs also report channel quality to the eNB, from which the eNB determines which layer(s) is better for the UE. For example, when n=2 and m=1, the eNB may then select two UEs such that, for the same precoder used by the UEs, the first UE has much higher layer 1 performance than layer 2, and the second UE has much higher layer 2 performance than layer 1. These two UEs may then share the same frequency-time domain resources, with the first UE information sent/received on layer 1, while the second UE information is sent/received on layer 2.Type: GrantFiled: March 5, 2013Date of Patent: September 23, 2014Assignee: Broadcom CorporationInventors: Sriram Rajagopal, Gowrisankar Somichetty
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Publication number: 20140155117Abstract: A communication device, such as a smart phone, receives a power specification message from a network controller. The power specification message specifies an output power applicable for a particular communication subframe or symbol within the subframe. In response to the power specification message, the communication device determines a new shaping table and replaces an existing shaping table with the new shaping table. The communication device uses the shaping table to generate an envelope signal for an envelope tracking power supply, and the new shaping table is adapted to provide power saving operation at the specified output power.Type: ApplicationFiled: June 21, 2013Publication date: June 5, 2014Inventors: Ying Xia, Gowrisankar Somichetty, Bongseok Park, Sriram Rajagopal, Sriraman Dakshinamurthy, Robert Gustav Lorenz
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Patent number: 8675761Abstract: Methods and apparatus of allocating antennas for cyclic delay diversity (CDD) transmission are disclosed. One method includes estimating a transmission channel of a transceiver having a plurality of antennas. A subset of a plurality of transceiver antennas is selected based on the estimated transmission channel. A single transceiver antenna of the subset is identified based on a channel quality of a transmission path of the single transceiver antenna. Cyclic delay diversity (CDD) signals are transmitted from the subset of the plurality of antennas, wherein a minimally delayed CDD signal is transmitted from the identified single transceiver antenna of the subset of the plurality of transceiver antennas.Type: GrantFiled: June 15, 2010Date of Patent: March 18, 2014Assignee: Broadcom CorporationInventors: Djordje Tujkovic, Vummintala Shashidhar, Erik Stauffer, Rishi Ranjan, Soumen Chakraborty, Bertrand Hochwald, Sriram Rajagopal, Sam Alex
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Publication number: 20140023154Abstract: A spatial multiplexing scheduler in, for example, an eNB or other base station, determines rank n precoders for UEs. Each UE reports the preferred precoder from this set of rank n precoders. The preferred precoder results in imbalance in performance over m layers compared to the rest of (n?m) layers. The UEs also report channel quality to the eNB, from which the eNB determines which layer(s) is better for the UE. For example, when n=2 and m=1, the eNB may then select two UEs such that, for the same precoder used by the UEs, the first UE has much higher layer 1 performance than layer 2, and the second UE has much higher layer 2 performance than layer 1. These two UEs may then share the same frequency-time domain resources, with the first UE information sent/received on layer 1, while the second UE information is sent/received on layer 2.Type: ApplicationFiled: March 5, 2013Publication date: January 23, 2014Applicant: Broadcom CorporationInventors: Sriram Rajagopal, Gowrisankar Somichetty
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Publication number: 20130340165Abstract: A method includes receiving a subject support motion disable signal indicative of at least one of power removal of an imaging system, a collision of a horizontally moving tabletop of the imaging system, a decoupling of a horizontal motion drive system configured to horizontally drive the tabletop, or a collision of a vertically moving subject support of the imaging system, wherein a vertical motion drive system drives the subject support vertical motion, and disabling, in response to receiving the subject support motion disable signal, at least one of tabletop horizontal motion or subject support vertical motion.Type: ApplicationFiled: March 9, 2012Publication date: December 26, 2013Applicant: KONINKLIJKE PHILIPS N.V.Inventors: Shufang Dong, Terrance Joseph Nemenz, Patrick Cumpson, Jeremy David Pettinato, Sriram Rajagopal
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Publication number: 20130254613Abstract: An ACK-NACK feedback message indicates which code words within a transport block that were received in error. The ACK-NACK message has a variable format based on the number of code words in the transport block and the number of code words received in error.Type: ApplicationFiled: November 27, 2012Publication date: September 26, 2013Applicant: BROADCOM CORPORATIONInventors: Gowrisankar Somichetty, Sriram Rajagopal
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Patent number: 8476255Abstract: Provided herein are novel, stilbene like compounds of the general formula (I), their derivatives, analogs, tautomeric forms, stereoisomers, polymorphs, hydrates, metabolites, prodrugs, solvates, pharmaceutically acceptable salts and compositions thereof. These compounds can inhibit HDACs and are useful as a therapeutic or ameliorating agent for diseases that are involved in cellular growth such as malignant tumors, autoimmune diseases, skin diseases, infections, inflammation, etc.Type: GrantFiled: October 8, 2008Date of Patent: July 2, 2013Assignee: Orchid Chemicals & Pharmaceuticals LimitedInventors: Sridharan Rajagopal, Virendra Kachhadia, Thanasekaran Ponpandian, Abdul Raheem Keeri, Umamaheswari Mani, Suresh Rathinasamy, Praveen Rajendran, Kamaraj Mani, Balaji Ramachandran, Punthalir Narayanaswamy, Sriram Rajagopal
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Patent number: 8450525Abstract: Novel compounds of the general formula (I), having histone deacetylase (HDAC) inhibiting enzymatic activity, their derivatives, analogs, tautomeric forms, stereoisomers, polymorphs, hydrates, solvates, intermediates, pharmaceutically acceptable salts, pharmaceutical compositions, metabolites and prodrugs thereof. The present invention more particularly provides novel compounds of the general formula (I). Also included is a method for treatment of cancer, psoriasis, proliferative conditions and conditions mediated by HDAC, in a mammal comprising administering an effective amount of a novel compound of formula (I).Type: GrantFiled: October 21, 2008Date of Patent: May 28, 2013Assignee: Orchid Chemicals & Pharmaceuticals LimitedInventors: Sridharan Rajagopal, Virendra Kachhadia, Thanasekaran Ponpandian, Abdul Raheem Keeri, Karnambaram Anandhan, Sriram Rajagopal, Rajendran Praveen, Prabhu Daivasigamani
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Publication number: 20130132796Abstract: The disclosure relates generally to the field of communications in transceiver, and more particularly to improved strategies for Cyclical Redundancy Check (CRC). A CRC check of a codeblock may be initiated by a CRC decoder before receiving all of the bits by a corresponding FEC encoder. Furthermore, an incremental CRC check with respect to the data packet without the need for requesting passed through data from higher layers.Type: ApplicationFiled: March 29, 2012Publication date: May 23, 2013Applicant: Broadcom CorporationInventors: Shashidhar VUMMINTALA, Arumugam Velayoudame, Gowrisankar Somichetty, Sriram Rajagopal, Sandip Solanki, Kalyana Krishnan
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Publication number: 20130130751Abstract: A wireless communication device is disclosed that is capable of reduced power consumption. Uplink and downlink sub-frames in a WiMAX, 802.16m or LTE environment often include several vacant symbols during which power-hungry hardware and software components need not operate at full power. By analyzing a physical layer beacon and control information of a received signal, the specific locations of data bursts can be determined, as well as periods of needed operation of a receiver module to effectively decode those data bursts. The receiver module can otherwise be controlled to operate in a LOW power state during remaining periods of vacant time, thereby conserving power consumption and extending battery life.Type: ApplicationFiled: December 1, 2011Publication date: May 23, 2013Applicant: Broadcom CorporationInventors: Shashidhar Vummintala, Gowrisankar Somichetty, Sriram Rajagopal, Sindhu Verma, Manish Airy, Hariprasad Gangadharan, Pugazhanthi R.P., Felix Varghese, Erik Stauffer
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Patent number: 8420653Abstract: Described are novel heterocyclic compounds of the general formula (I), their derivatives, analogs, tautomeric forms, stereoisomers, polymorphs, hydrates, solvates, pharmaceutically acceptable salts, pharmaceutical compositions, metabolites and prodrugs thereof. These compounds are useful in the treatment of immunological diseases, inflammation, pain disorder, rheumatoid arthritis; osteoporosis; multiple myeloma; uveititis; acute and chronic myelogenous leukemia; atherosclerosis; cancer; cachexia; ischemic-induced cell damage; pancreatic beta cell destruction; osteoarthritis; rheumatoid spondylitis; gouty arthritis; inflammatory bowel disease; ARDS; psoriasis; Crohn's disease; allergic rhinitis; ulcerative colitis; anaphylaxis; contact dermatitis; muscle degeneration; asthma; COPD; bone resorption diseases; multiple sclerosis; sepsis; septic shock; toxic shock syndrome and fever. More particularly these compounds are useful as PDE4 inhibitors and are useful for treating PDE4 mediated diseases.Type: GrantFiled: January 30, 2009Date of Patent: April 16, 2013Assignee: Orchid Chemicals & Pharmaceuticals LimitedInventors: Visweswara Akella Satya Surya Srinivas, Ravikumar Tadiparthi, Ganapavarapu Veera Raghava Sharma, Thirunavukkarasu Sappanimuthu, Durairaj Peter Bhakiaraj, Virendra Kachhadia, Kilambi Narasimhan, Sathya Narayana Thara, Sriram Rajagopal, Sukunath Narayanan, Venkatesan Parameswaran, Venkatesan Janarthanam, Maruthikumar Narayanam, Sathyanarayana Gadde, Uma Ramachandran, Gopalan Balasubramanian, Narayanan Surendran, Shridhar Narayanan, Lolaknath Santosh Vishwakarma, Sanjeev Saxena, Nishikanth Reddy Gaddam