Patents by Inventor Chandra A

Chandra A 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).

  • Publication number: 20050121599
    Abstract: A semiconductor image sensor utilizing a metal mesh filter to transmit light of a specific wavelength to a photoconversion device, and method of making said image sensor. Semiconductor image sensor pixel cells using varied metal mesh filters may be arranged in a Bayer pattern for color imaging. As a result, the need for using conventional polymer color filters in image sensor applications is eliminated.
    Type: Application
    Filed: December 3, 2003
    Publication date: June 9, 2005
    Inventor: Chandra Mouli
  • Publication number: 20050125185
    Abstract: A method and apparatus for improved formal equivalence checking to verify the operation of components in a VLSI integrated circuit. The present invention enhances previous techniques for dynamic circuits by generating a multi-level transistor abstraction for dynamic circuits. Two-levels of abstracted code are generated. First, an abstracted legal Verilog® is generated for the evaluate phase of a dynamic circuit. Second, “comment-logic” in Verilog® syntax is generated for the pre-charge phase of the dynamic circuit. Using the method and apparatus of the present invention, it is possible to obtain a multi-level transistor abstraction for both the “clk=0” and the “clk=1” conditions. The binary decision diagram property of the circuit being analyzed is used to generate multi-level representations for both the pre-charge (clk=0) and the evaluate phases (clk=1). The multi-level abstracted model of the present invention has several advantages over the prior art.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Inventors: Manish Singh, Arun Chandra
  • Patent number: 6902960
    Abstract: An oxide interface and a method for fabricating an oxide interface are provided. The method comprises forming a silicon layer and an oxide layer overlying the silicon layer. The oxide layer is formed at a temperature of less than 400° C. using an inductively coupled plasma source. In some aspects of the method, the oxide layer is more than 20 nanometers (nm) thick and has a refractive index between 1.45 and 1.47. In some aspects of the method, the oxide layer is formed by plasma oxidizing the silicon layer, producing plasma oxide at a rate of up to approximately 4.4 nm per minute (after one minute). In some aspects of the method, a high-density plasma enhanced chemical vapor deposition (HD-PECVD) process is used to form the oxide layer. In some aspects of the method, the silicon and oxide layers are incorporated into a thin film transistor.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: June 7, 2005
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Pooran Chandra Joshi, John W. Hartzell, Masahiro Adachi, Yoshi Ono
  • Publication number: 20050118582
    Abstract: Various embodiments of the invention provide human nucleic acid-associated proteins (NAAP) and polynucleotides which identify and encode NAAP. Embodiments of the invention also provide expression vectors, host cells, antibodies, agonists, and antagonists. Other embodiments provide methods for diagnosing, treating, or preventing disorders associated with aberrant expression of NAAP.
    Type: Application
    Filed: July 10, 2002
    Publication date: June 2, 2005
    Inventors: Anita Swarnakar, Thomas Richardson, Bridget Warren, Jennifer Griffin, Y Tang, Henry Yue, Mariah Baughn, Brooke Emerling, Preeti Lal, Dyung Lu, Ian Forsythe, Jayalaxmi Ramkumar, Joana Li, Shanya Becha, Brendan Duggan, Madhusudan Sanjanwala, Ernestine Lee, Neil Burford, Vicki Elliott, Craig Ison, Li Ding, Mark Borowsky, Monique Yao, Ines Barroso, Bao Tran, Narinder Chawla, April Hafalia, Danniel Nguyen, Yan Lu, Chandra Arvizu
  • Patent number: 6901572
    Abstract: A programming technique for a programmable logic device (PLD) is disclosed wherein the programmed PLD controls a circuit's behavior according to a desired circuit behavior implementation. A user constructs a program, wherein the program comprises instructions defining inputs, outputs, and conditional branching for an abstract state sequencer that implements the desired circuit behavior. The programming technique then translates the states and resources for the abstract state sequencer into HDL source code, which in turn may be translated into a programming bit pattern for the PLD.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: May 31, 2005
    Assignee: Lattice Semiconductor Corporation
    Inventors: Paul R. Dougherty, Srirama Chandra, Hans W. Klein
  • Patent number: 6900296
    Abstract: The invention relates to a cost effective and industrially advantageous process for the selective methylation of a hydroxy group at the 6 position of erythromycin A derivative which comprised methylating the erythromycin A derivative with a methylating agent in a mixture of toluene and a ploar aprotic solvent.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: May 31, 2005
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Mohammad Salman, Parma Chandra Ray, Kiran Kumar Gangakhedkar, Harish Niranjan Lal Dorwal, Naresh Kumar
  • Publication number: 20050112220
    Abstract: A skin whitening composition includes an extract of black cohosh obtained by sequentially exposing the black cohosh to two or more solvents of varying solvent strengths. The root of the black cohosh can be separately used to obtain the extract. The composition can be topically applied to the human skin and can further include one or more cosmetically acceptable ingredients. A method of suppressing melanogenesis includes topically applying to the skin a composition comprising an extract of black cohosh obtained by sequentially exposing the black cohosh to two or more solvents of varying solvent strength.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 26, 2005
    Inventors: Jesse Leverett, Stephen Missler, Haeri Roh-Schmidt, Amitabh Chandra
  • Publication number: 20050112565
    Abstract: The invention provides human proteases (PRTS) and polynucleotides which identify and encode PRTS. The invention also provides expression vectors, host cells, antibodies, agonists, and antagonists. The invention also provides methods for diagnosing, treating, or preventing disorders associated with aberrant expression of PRTS.
    Type: Application
    Filed: March 16, 2001
    Publication date: May 26, 2005
    Inventors: Henry Yue, Dyung Lu, Jennifer Policky, Angelo Delegeane, Catherine Tribouley, Farrah Khan, Janice Au-Young, Olga Bandman, Preeti Lal, Mark Borowsky, Ameena Gandhi, Jennifer Hillman, Y. Tang, Neil Burford, Mariah Baughn, Danniel Nguyen, Monique Yao, Narinder Walia, Ann He, April Hafalia, Yan Lu, Chandra Arvizu
  • Publication number: 20050111847
    Abstract: A dispersion compensator is provided that includes an input port 102 for receiving a WDM optical signal and a dispersion compensating element 110 coupled to the input port for substantially compensating the WDM optical signal for dispersion that has accumulated along an external transmission path. The dispersion compensator also includes an output port 104 for directing the dispersion compensated WDM optical signal to an external element and a dynamic power controller 106, 108, 112, 114, 116 for maintaining a total power of the WDM signal below a prescribed level prior to receipt of the WDM optical signal by the dispersion compensating element.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 26, 2005
    Inventors: Chandra Jasti, Hermann Gysel, Mani Ramachandran
  • Publication number: 20050112221
    Abstract: A skin whitening composition includes an extract of asparagus obtained by sequentially exposing the asparagus to two or more solvents of varying solvent strengths. The root and shoot portions of the asparagus can be separately used to obtain the extract. The composition can be topically applied to the human skin and can further include one or more cosmetically acceptable ingredients. A method of suppressing melanogenesis includes topically applying to the skin a composition comprising an extract of asparagus obtained by sequentially exposing the asparagus to two or more solvents of varying solvent strengths.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 26, 2005
    Inventors: Jesse Leverett, Stephen Missler, Haeri Roh-Schmidt, Amitabh Chandra
  • Patent number: 6896907
    Abstract: The invention relates to a novel pharmaceutical composition comprising an effective amount of bio-active fraction from cow urine distillate as a bioavailability facilitator and pharmaceutically acceptable additives selected from anticancer compounds, antibiotics, drugs, therapeutic and nutraceutic agents, ions and similar molecules which are targeted to the living systems.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: May 24, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Suman Preet Singh Khanuja, Sushil Kumar, Ajit Kumar Shasany, Jai Shankar Arya, Mahendra Pandurang Darokar, Monika Singh, Prachi Sinha, Soumya Awasthi, Subhash Chandra Gupta, Vivek Kumar Gupta, Madan Mohan Gupta, Ram Kishore Verma, Sweta Agarwal, Sunil Balkrishna Mansinghka, Suresh Haribhau Dawle
  • Publication number: 20050108718
    Abstract: Techniques for parallel processing of events within multiple event contexts include dynamically binding an event context to an execution context in response to receiving an event by storing arriving events into a global event queue and storing events from the global event queue in per-execution context event queues. The techniques associate event queues with the execution contexts to temporarily store the events for a duration of the binding and thus dynamically bind the events received on a per-event basis in the context queues.
    Type: Application
    Filed: November 19, 2003
    Publication date: May 19, 2005
    Inventors: Alok Kumar, Prashant Chandra
  • Publication number: 20050108479
    Abstract: In general, in one aspect, the disclosure describes a processor that includes a memory to store at least a portion of instructions of at least one program and multiple packet engines that include an engine instruction cache to store a subset of the at least one program. The processor also includes circuitry coupled to the packet engines and the memory to receive requests from the multiple engines for subsets of the at least one portion of the at least one set of instructions.
    Type: Application
    Filed: November 6, 2003
    Publication date: May 19, 2005
    Inventors: Sridhar Lakshmanamurthy, Wilson Liao, Prashant Chandra, Jeen-Yuan Miin, Yim Pun
  • Publication number: 20050106672
    Abstract: The invention provides human neurotransmission associated proteins (NTAP) and polynucleotides which identify and encode NTAP. The invention also provides expression vectors, host cells, antibodies, antagonists. The invention also provides methods for diagnosing, treating or preventing disorders associated with expression of NTAP.
    Type: Application
    Filed: November 29, 2004
    Publication date: May 19, 2005
    Inventors: Preeti Lal, Y. Tang, Henry Yue, Neil Corley, Karl Guegler, Gina Gorgone, Mariah Baughn, Chandra Patterson
  • Publication number: 20050107612
    Abstract: A process for preparation of montelukast or a salt thereof is provided, the process including reacting a late intermediate compound which is 2-[1-[1-R-3-[2-(7 chloro quinolin-2-yl) vinyl [phenyl]-3-[2-methoxy carbonyl phenyl] propyl sulfonyl methyl] cyclo propyl] acetic acid or a salt thereof with methyl magnesium chloride or methyl magnesium bromide in an organic solvent. In one embodiment, the process includes reacting an earlier intermediate compound which is methyl 2-(3-R-(3-(2-(7-chloro 2-quinolinyl)-ethenyl)-3 hydroxy propyl) benzoate with methane sulfonyl chloride or toluene sulfonyl chloride to obtain a mesylated or tosylated derivative of the earlier intermediate compound; followed by a reaction of the mesylated or tosylated derivative with 1-mercapto methyl cyclopropane acetic acid in a polar solvent in a presence of a base to obtain the late intermediate compound.
    Type: Application
    Filed: December 30, 2003
    Publication date: May 19, 2005
    Inventors: Buchi Reguri, Satyanarayana Bollikonda, Veera Chandra Sekhar Bulusu, Ravi Kasturi, Sanjeev Aavula
  • Publication number: 20050104754
    Abstract: A method and apparatus are provided for encoding and decoding digital information. A sequence of data words is received, wherein each data word has a running digital sum (RDS). The sequence of data words is encoded into a sequence of corresponding code words, which has a current RDS. For each data word a binary symbol is added to the data word and the data word is selectively complemented as a function of the RDS of the data word and the current RDS of the sequence of code words to form the corresponding code word.
    Type: Application
    Filed: November 17, 2003
    Publication date: May 19, 2005
    Inventors: Chandra Varanasi, Kinhing Tsang
  • Patent number: 6893849
    Abstract: The present invention deals with an improved fermentation process for the production of xylitol from Pichia sp. and the said process is submerged fermentation for the production of xylitol using cotton seed flour as cheap organic nitrogen source and the main advantage is short fermentation time and higher yield of xylitol from xylose moreover, one of the essential aspects of the present invention is that the medium for the fermentation using Pichia sp. for producing high yield of xylitol from xylose has been obtained using a specific combination of nutritional parameters.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: May 17, 2005
    Assignee: Council of Scientific and Industrial Research
    Inventors: Arulmuthu Eugene Raj, Marichetti Kuppuswami Gowthaman, Nandan Prakash Ghildyal, Mahesh Chandra Mishra, Ganesh Karanth Naikankatte
  • Patent number: 6893858
    Abstract: An isolated polynucleotide encoding a novel potassium channel polypeptide, KCNQ5, that is expressed primarily in brain and skeletal muscle is described. The new polypeptide has been cloned and isolated from a human brain cDNA library and is a member the KCNQ family of potassium channels. The provided human KCNQ5 nucleic acid sequence and encoded polypeptide can be employed for diagnostic, screening and therapeutic uses.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: May 17, 2005
    Assignee: Bristol-Myers Squibb Company
    Inventors: Steven I. Dworetzky, Chandra S. Ramanathan, Joanne T. Trojnacki, Valentin K. Gribkoff
  • Publication number: 20050099979
    Abstract: The present invention is directed to methods and wireless communication devices that are configured to enhance communication capacity in a wireless network. In one aspect of the invention various scheduling processes and schedulers for the transmissions of data packets are disclosed. In another aspect of the invention, the selection of appropriate transmission rates to advertise by a common unit which provides wireless service to different types of wireless transmit receive units (WTRUs) is addressed.
    Type: Application
    Filed: September 2, 2004
    Publication date: May 12, 2005
    Applicant: InterDigital Technology Corporation
    Inventor: Arty Chandra
  • Publication number: 20050102474
    Abstract: In general, in one aspect, the disclosure describes a processor that includes an instruction store to store instructions of at least a portion of at least one program and a set of multiple engines coupled to the instruction store. The engines include an engine instruction cache and circuitry to request a subset of the at least the portion of the at least one program.
    Type: Application
    Filed: November 6, 2003
    Publication date: May 12, 2005
    Inventors: Sridhar Lakshmanamurthy, Wilson Liao, Prashant Chandra, Jeen-Yuan Miin, Yim Pun