Patents by Inventor A. Rao

A. Rao 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).

  • Narrowband system and method for defining narrowband wideband channels in unused wideband channels
    Patent number: 8107887
    Abstract: A narrowband communication system (100) includes a base station (102) and a plurality of subscriber units (104). The base station assigns one or more wideband channels to be measured to each subscriber unit (606). The subscriber units tune to their assigned wideband channels and perform narrowband measurements, then report the results to the base station (612). The base station then analyzes the measurement results (614) and selects available wideband channels to be divided into narrowband channels for use by the narrowband system.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: January 31, 2012
    Assignee: Motorola Solutions, Inc.
    Inventors: Yadunandana N. Rao, Apoorv Chaudhri, Geetha K. Thampi
  • Route tracing program configured to detect particular network element making type of service modification
    Patent number: 8107388
    Abstract: One or more network elements that modify type of service values in a network are detected by sending route tracing messages having increasing time-to-live values and a designated type of service value from a first network element to a second network element. Type of service values are monitored in respective time exceeded messages received from respective network elements on a given network path between the first network element and the second network element responsive to the route tracing messages. At least a particular one of the network elements on the given network path that has made a modification in type of service value relative to the designated type of service value is identified, based on the monitored type of service values in the respective time exceeded messages.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: January 31, 2012
    Assignee: Avaya Inc.
    Inventors: Paul Blum, Jean Meloche, Kenneth Pearl, Anton Rager, Balaji Sathyanarayana Rao, John R. Tuck, Jr.
  • Calcium channel blockers
    Patent number: 8106062
    Abstract: The present invention is directed in part towards methods of modulating the function of calcium channels with dihydropyrimidine, dihydropyrimidone, dihydropyrimidinethione, and dihydropyridine compounds. In addition, the invention describes methods of preventing and treating protein kinase-related abnormal conditions in organisms with a compound identified by the invention. Furthermore, the invention pertains to T-channel agonists that have a slow onset of activity and long duration of activity.
    Type: Grant
    Filed: September 11, 2003
    Date of Patent: January 31, 2012
    Assignee: Diakron Pharmaceuticals, Inc.
    Inventors: Jeffrey A. Bibbs, Srirama Rao
  • Methodology and system for file replication based on a peergroup
    Patent number: 8108548
    Abstract: The claimed invention adapts an existing operating system native replication service component to interface with a general application running on a peer-to-peer network. The claimed invention provides the general application with replication services without the need for coding this functionality from scratch. The claimed invention also adapts the replication service functionality to create a topology of connections based on information received from a peer-to-peer network component, thereby making the replication service function more efficiently with a peer-to-peer network.
    Type: Grant
    Filed: December 22, 2005
    Date of Patent: January 31, 2012
    Assignee: Microsoft Corporation
    Inventors: Dan Teodosiu, Ravi T. Rao, Ryan Y. Kim, Sandeep K. Singhal, Todd R. Manion
  • Communication device and method of communicating transmissions
    Patent number: 8107999
    Abstract: A communication device including a first transceiver arranged to communicate transmissions based upon a first communications protocol, a second transceiver arranged to communicate transmissions based upon a second communications protocol that is different from the first communication protocol, an antenna connected to the first transceiver and to the second transceiver and arranged to communication transmissions for the first transceiver and the second transceiver, and a controller arranged to prioritize simultaneous communication of a transmission of the first transceiver and a transmission of the second transceiver based upon signal strength of transmissions of the first transceiver into either a higher prioritized transmission or a lower prioritized transmission and arranged to allow communication of the higher prioritized transmission.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: January 31, 2012
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Srinivas Rao Pandruvada
  • Process for the preparation of Irbesartan
    Patent number: 8106216
    Abstract: The present invention relates to an improved process for the preparation of 2-n-butyl-3-[[2?-(1H-tetrazol-5-yl)[1,1?-biphenyl]-4-yl]-1,3-diazaspiro[4.4]non-1-en-4-one (Irbesartan).
    Type: Grant
    Filed: April 23, 2007
    Date of Patent: January 31, 2012
    Assignee: Aurobindo Pharma Ltd.
    Inventors: Venkata vara prasada rao Korrapati, Venkata subramanyeswara rao Inti, Rani Ananta, Ramesh Dandala, Sivakumaran Meenakshisunderam
  • Semiconductor devices with graded dopant regions
    Patent number: 8106481
    Abstract: Most semiconductor devices manufactured today, have uniform dopant concentration, either in the lateral or vertical device active (and isolation) regions. By grading the dopant concentration, the performance in various semiconductor devices can be significantly improved. Performance improvements can be obtained in application specific areas like increase in frequency of operation for digital logic, various power MOSFET and IGBT ICS, improvement in refresh time for DRAM's, decrease in programming time for nonvolatile memory, better visual quality including pixel resolution and color sensitivity for imaging ICs, better sensitivity for varactors in tunable filters, higher drive capabilities for JFET's, and a host of other applications.
    Type: Grant
    Filed: August 27, 2009
    Date of Patent: January 31, 2012
    Inventor: G. R. Mohan Rao
  • ORGANIC SEMICONDUCTORS CAPABLE OF AMBIPOLAR TRANSPORT
    Publication number: 20120018706
    Abstract: Electrodes in an organic thin film transistor based on single component organic semiconductors may be chemically modified to realize ambipolar transport. Electronic circuits may be assembled which include at least two such organic thin film transistors wherein at least one transistor is configured as a pmos transistor and at least on other transistor is configured as a nmos transistor.
    Type: Application
    Filed: December 8, 2009
    Publication date: January 26, 2012
    Inventors: Cherie Kagan, Sangameshwar Rao Saudari
  • PHOTOGRAPHIC SOCIAL GAME METHOD, SYSTEM, AND APPARATUS
    Publication number: 20120021829
    Abstract: A game machine may facilitate a photographic social game. The photographic social game may be played using, for example, camera-enabled devices (e.g., participating devices). The photographic social game may prompt users of camera-enabled devices to take and submit photographs at a particular time (e.g., 5:00 PM GMT or 5:00 PM local time), after occurrence of a particular event (e.g., 5 minutes after waking up), or any suitable combination thereof. These photos may be assembled by the game machine into a presentation that is shared among the users participating in the photographic social game, and one or more of various games may be played by the users based on the presentation.
    Type: Application
    Filed: July 20, 2011
    Publication date: January 26, 2012
    Applicant: KATANGO, INC.
    Inventors: Yoav Shoham, Shailendra Ramineni Rao, Michael Andrew Munie, Thuc D. Vu
  • PROTEIN KINASE C INHIBITORS AND USES THEREOF
    Publication number: 20120022092
    Abstract: This disclosure concerns compounds which are useful as inhibitors of protein kinase C (PKC) and are thus useful for treating a variety of diseases and disorders that are mediated or sustained through the activity of PKC. This disclosure also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Sacha Holland, Rao Kolluri, Salvador Alvarez, Matthew Duncton, Rajinder Singh, Jing Zhang, Esteban Masuda
  • METHOD OF USING DIKETOPIPERAZINES AND COMPOSITION CONTAINING THEM
    Publication number: 20120022081
    Abstract: The invention provides a method of inhibiting the effects of platelet activating factor (PAF). For instance, a disease or condition mediated by PAF (particularly inflammation) can be treated or platelet aggregation can be inhibited. The invention also provides a method of inhibiting the production and/or release of interleukin 8 (IL-8) by cells. The effects of PAF and the production and/or release of IL-8 are inhibited according to the invention by a compound of the formula: wherein R1 and R2 are defined in the application, or a physiologically-acceptable salt thereof. The invention also provides pharmaceutical compositions comprising these compounds.
    Type: Application
    Filed: October 4, 2011
    Publication date: January 26, 2012
    Inventors: David Bar-Or, C. Gerald Curtis, Nagaraja K.R. Rao, Greg Thomas
  • APPARATUS, AND AN ASSOCIATED METHOD, FOR IMPLEMENTING A PARENTAL CONTROL FEATURE AT A WIRELESS DEVICE
    Publication number: 20120023548
    Abstract: An apparatus, and an associated method, facilitates implementation of a parental control feature at a mobile station. A parental authority selects a parental control feature to be implemented at the mobile station and by way of a user interface at a computer workstation or a master mobile station. Detection is made of the selection, and a control signal is generated that includes identification of the selection. The control signal is sent to the affected mobile station. Once received at the mobile station, the control signal is detected, its contents ascertained, and the parental control feature is implemented at the mobile station.
    Type: Application
    Filed: July 26, 2010
    Publication date: January 26, 2012
    Applicant: RESEARCH IN MOTION LIMTED
    Inventors: NICHOLAS PATRICK ALFANO, SURESH CHITTURI, MICHAEL RAO, JANELE BULLER, VIKRAM RATTAN KEWALRAMANI, THANE EISENER, SHILADITYA SIRCAR, JAMES PAUL WARDEN, AXEL DENIS FERRAZZINI, SALIM HAYDER OMAR
  • Flavanoid Compounds and Process for Preparation Thereof
    Publication number: 20120022062
    Abstract: The present invention relates to flavanoid compounds of general formula (X1) wherein: R1 is selected from a group consisting of morpholinyl, N-methyl piperizinyl, piperidinyl and N,N?-dimethylamino groups, and n ranges from 3 to 6, and process for preparation thereof. The present invention relates to the demonstration of anti Helicobacter pylori activity and gastric antisecretory activity of semisynthetically designed flavonoid compounds, to be used for the prevention and treatment of gastroduodenal disorders in general and peptic ulcer diseases in particular. The present invention also relates to a hetero-dimeric bi-functional molecule that can be used as monotherapy substituting/replacing/overcoming currently used triple/quadruple therapy, thereby implicating/anticipating/envisaging its commercial applicability.
    Type: Application
    Filed: February 26, 2010
    Publication date: January 26, 2012
    Inventors: Pratap Kumar Dab, Suchandra Goswami, Annalaskhmi Chinniah, Janaswamy Madusudana Rao, Suresh Babu Katragadda
  • BORDER GATEWAY PROTOCOL INBOUND POLICY OPTIMIZATION
    Publication number: 20120020364
    Abstract: A BGP capable packet network device is located at the boundary of an autonomous network and in communication with a peer BGP capable packet network device in a neighboring autonomous network. The BGP capable packet network device is comprised of one or more line cards for receiving and, processing and sending packets of information, and for receiving and forwarding routing update information to a route processor comprising the packet network device. The route processor runs a border gateway protocol which is configured with one or more policies that operate to filter the routing update information received from the line card. The routing update information filter is comprised of at least one variable length path attribute and the filter operates such that it only applies the variable length path attribute one time to the routing update information.
    Type: Application
    Filed: July 23, 2010
    Publication date: January 26, 2012
    Applicant: Force10 Networks, Inc.
    Inventors: KALPESH ZINJUWADIA, Srikanth Rao
  • INSURANCE QUOTING APPLICATION FOR HANDHELD DEVICE
    Publication number: 20120022896
    Abstract: A method of providing location-based insurance rate quotes and a system for implementing that method. The method comprises determining a property address proximate a mobile electronic device based on global positioning system signals received by the mobile electronic device, prompting a user of the mobile electronic device to input a name, requesting a determination of insurable property affiliated with the property address and the name, requesting an insurance rate quote for the insurable property, and receiving and displaying the insurance rate quote on the mobile electronic device.
    Type: Application
    Filed: July 22, 2010
    Publication date: January 26, 2012
    Applicant: Webcetera, L.P.
    Inventors: Jaideep Jayaram, Nagraj V. Rao
  • Novel Hydrated Form of Erlotinib Free Base and a Process For Preparation Of Erlotinib Hydrochloride Polymorph Form A Substantially Free of Polymorph Form B
    Publication number: 20120022256
    Abstract: The present invention provides a novel and stable hydrated form of erlotinib free base, and a process for its preparation thereof. The present invention also provides a process for preparation of erlotinib hydrochloride crystalline polymorph a substantially free of polymorph B. The present invention further relates to erlotinib hydrochloride crystalline particles having mean particle size (D50) ranging from about 4 ?m to 15 ?m and 90 volume-% of the particles (D90) ranging from about 14 ?m to 30 ?m, to the methods for the manufacture of said crystalline particles, and to pharmaceutical compositions comprising said crystalline particles.
    Type: Application
    Filed: August 31, 2011
    Publication date: January 26, 2012
    Applicant: HETERO DRUGS LIMITED
    Inventors: BANDI PARTHASARADHI REDDY, KURA RATHNAKAR REDDY, RAPOLU RAJI REDDY, DASARI MURALIDHARA REDDY, THUNGATHURTHY SRINIVASA RAO
  • METHOD OF USING DIKETOPIPERAZINES AND COMPOSITION CONTAINING THEM
    Publication number: 20120022003
    Abstract: The invention provides a method of inhibiting the effects of platelet activating factor (PAF). For instance, a disease or condition mediated by PAF (particularly inflammation) can be treated or platelet aggregation can be inhibited. The invention also provides a method of inhibiting the production and/or release of interleukin 8 (IL-8) by cells. The effects of PAF and the production and/or release of IL-8 are inhibited according to the invention by a compound of the formula: wherein R1 and R2 are defined in the application, or a physiologically-acceptable salt thereof. The invention also provides pharmaceutical compositions comprising these compounds.
    Type: Application
    Filed: September 29, 2011
    Publication date: January 26, 2012
    Inventors: David Bar-Or, C. Gerald Curtis, Nagaraja K.R. Rao, Greg Thomas
  • Terpene, terpenoid, and fullerene stabilizers for fluoroolefins
    Patent number: 8101094
    Abstract: The present invention relates to compositions comprising at least one fluoroolefin and an effective amount of stabilizer that may be a terpene, terpenoid or fullerene; or a mixture of a terpene, terpenoid or fullerene with other stabilizers. The stabilized compositions may be useful in cooling apparatus, such as refrigeration, air-conditioning, chillers, and heat pumps, as well as in applications as foam blowing agents, solvents, aerosol propellants, fire extinguishants, and sterilants.
    Type: Grant
    Filed: August 31, 2007
    Date of Patent: January 24, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jon Lee Howell, Velliyur Nott Mallikarjuna Rao, Thomas J. Leck, Barbara Haviland Minor, Mario Joseph Nappa, Nandini C. Mouli, Ekaterina Swearingen, Andrew Edward Feiring
  • Restrictive and preferential routing in a distributed mobile switching center environment with media gateway clusters
    Patent number: 8103279
    Abstract: A system and method for routing calls in a distributed mobile switching center environment involves receiving a call at a first node (115(1)) in a telecommunication network (100). The first node is associated with multiple trunks (430, 445). A constraint relating to selection of a circuit for routing the call is identified (320). The circuit is associated with one of the trunks that is associated with the first node. The call is routed (350) to a trunk in accordance with the constraint.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: January 24, 2012
    Assignees: Alcatel Lucent, Alcatel-Lucent
    Inventors: Charles Marvin Berteau, Michael Aguilar, Seshagiri Rao Madhavapeddy
  • System and method of pulse generation
    Patent number: 8102720
    Abstract: In a particular embodiment, a device includes a reference voltage circuit to generate a controlled voltage. The device includes a frequency circuit configured to generate a frequency output signal having a pre-set frequency and a counter to generate a count signal based on the pre-set frequency. The device also includes a delay circuit coupled to receive the count signal and to produce a delayed digital output signal and a latch to generate a pulse. The pulse has a first edge responsive to a write command and a trailing edge formed in response to the delayed digital output signal. In a particular embodiment, the pulse width of the pulse corresponds to an applied current level that exceeds a critical current to enable data to be written to an element of the memory but does not exceed a predetermined threshold.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: January 24, 2012
    Assignee: QUALCOMM Incorporated
    Inventors: Hari Rao, Anosh B. Davierwalla, Dongkyu Park, Sei Seung Yoon