Patents by Inventor Ajay Bhatia

Ajay Bhatia 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: 20150227456
    Abstract: A system for storing data in a memory may include circuitry that may receive an address, a command and data. The circuitry may also determine a type of the command and generate a read control or write control signal dependent upon the type. The system may also include a plurality of sub-arrays and sense amplifiers. Each of the sub-arrays may include a plurality of memory cells. Each of the sense amplifiers may be coupled to a respective one of the plurality of sub-arrays and may read data stored in a first memory cell included in the respective sub-array. The system may also include one or more write driver circuits. A first write driver circuit may be coupled to at least two of the plurality of sub-arrays. The first write driver circuit may be configured to store data into a second memory cell in one of the at least two sub-arrays.
    Type: Application
    Filed: June 4, 2014
    Publication date: August 13, 2015
    Inventors: Ajay Bhatia, Michael Dreesen
  • Publication number: 20150017200
    Abstract: The present invention relates generally to a fusion protein made from a synthetic gene construct comprising of elements derived from the Leishmania antigens K26, K39, and K9. The fusion protein is particularly useful in the diagnosis of leishmaniasis, particularly visceral leishmaniasis in animals such as humans and dogs.
    Type: Application
    Filed: May 23, 2014
    Publication date: January 15, 2015
    Applicant: INFECTIOUS DISEASE RESEARCH INSTITUTE
    Inventors: Ajay BHATIA, Steven G. REED
  • Patent number: 8885393
    Abstract: A voltage source controller for a memory array includes an input coupled to a voltage source, an output coupled to one or more memory cells of a memory array, where the output is configured to provide a cell source voltage to the memory cells. The controller also includes a switch circuit configured to: receive a retention enable signal, a write assist enable signal, and a standard mode enable signal; and based on the retention enable signal, write assist enable signal, and standard mode enable signal, selectively set the cell source voltage for one or more of the memory cells to one of: a retention voltage, a write assist voltage, or a standard mode voltage, where the retention voltage and the write assist voltage are less than the standard mode voltage.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: November 11, 2014
    Assignee: Apple Inc.
    Inventors: Ajay Bhatia, Hang Huang
  • Patent number: 8771710
    Abstract: The present invention relates generally to a fusion protein made from a synthetic gene construct comprising of elements derived from the Leishmania antigens K26, K39, and K9. The fusion protein is particularly useful in the diagnosis of leishmaniasis, particularly visceral leishmaniasis in animals such as humans and dogs.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: July 8, 2014
    Assignee: Infectious Disease Research Institute
    Inventors: Ajay Bhatia, Steven G. Reed
  • Publication number: 20140169075
    Abstract: A voltage source controller for a memory array includes an input coupled to a voltage source, an output coupled to one or more memory cells of a memory array, where the output is configured to provide a cell source voltage to the memory cells. The controller also includes a switch circuit configured to: receive a retention enable signal, a write assist enable signal, and a standard mode enable signal; and based on the retention enable signal, write assist enable signal, and standard mode enable signal, selectively set the cell source voltage for one or more of the memory cells to one of: a retention voltage, a write assist voltage, or a standard mode voltage, where the retention voltage and the write assist voltage are less than the standard mode voltage.
    Type: Application
    Filed: December 18, 2012
    Publication date: June 19, 2014
    Applicant: APPLE INC.
    Inventors: Ajay Bhatia, Hang Huang
  • Publication number: 20140112429
    Abstract: A register file cell structure to enable lower voltage writes is disclosed. In one embodiment, a register file includes a state element made up of two cross-coupled inverters. Each of the inverters includes a p-channel metal oxide semiconductor (PMOS) transistor having a source terminal coupled to a virtual voltage node. One or more PMOS transistors are coupled in series between the virtual voltage node and a global voltage node. Each of the one or more PMOS transistors includes a gate terminal that is hardwired to a ground node, and thus these devices remain active when power is applied to the global voltage node. The presence of the one or more PMOS devices coupled between the virtual and global voltage nodes results in the ability to overwrite contents stored in the state element at lower voltages than otherwise attainable without the one or more PMOS devices.
    Type: Application
    Filed: October 23, 2012
    Publication date: April 24, 2014
    Applicant: APPLE INC.
    Inventors: Ajay Bhatia, Greg M. Hess, Sanjay P. Zambare
  • Patent number: 8541007
    Abstract: The present invention relates to compositions comprising proteins or polynucleotides of Chlamydia sp., in particular combinations of proteins or polynucleotides encoding them, and methods for the use of the proteins or polynucleotides in the treatment, prevention and diagnosis of Chlamydia infection.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: September 24, 2013
    Assignees: GlaxoSmithKline Biologicals S.A., Corixa Corporation
    Inventors: Mark Alderson, Ajay Bhatia, Yves Lobet, Brenda Maisonneuve, Jean-Francois L Maisonneuve, Martine Marchand, Pascal Mettens, Florence Bernadette Nozay, Peter Probst, Samira H Skeiky
  • Publication number: 20130071862
    Abstract: The present invention relates generally to a fusion protein made from a synthetic gene construct comprising of elements derived from the Leishmania antigens K26, K39, and K9. The fusion protein is particularly useful in the diagnosis of leishmaniasis, particularly visceral leishmaniasis in animals such as humans and dogs.
    Type: Application
    Filed: July 27, 2012
    Publication date: March 21, 2013
    Applicant: INFECTIOUS DISEASE RESEARCH INSTITUTE
    Inventors: Ajay Bhatia, Steven G. Reed
  • Patent number: 8263089
    Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: September 11, 2012
    Assignee: Corixa Corporation
    Inventors: Ajay Bhatia, Yasir A. W. Skeiky, Peter Probst
  • Patent number: 8231881
    Abstract: The present invention relates generally to a fusion protein made from a synthetic gene construct comprising of elements derived from the Leishmania antigens K26, K39, and K9. The fusion protein is particularly useful in the diagnosis of leishmaniasis, particularly visceral leishmaniasis in animals such as humans and dogs.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: July 31, 2012
    Assignee: Infectious Disease Research Institute
    Inventors: Ajay Bhatia, Steven G. Reed
  • Publication number: 20120114688
    Abstract: Compositions and methods for preventing, treating and detecting leishmaniasis are disclosed. The compositions generally comprise fusion polypeptides comprising Leishmania antigens, in particular, SMT and NH antigens or immunogenic portions or variants thereof, as well as polynucleotides encoding such fusion polypeptides.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 10, 2012
    Applicant: INFECTIOUS DISEASE RESEARCH INSTITUTE
    Inventors: Ajay Bhatia, Steven G. Reed
  • Publication number: 20120114684
    Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.
    Type: Application
    Filed: September 30, 2011
    Publication date: May 10, 2012
    Applicant: CORIXA CORPORATION
    Inventors: Ajay Bhatia, Yasir A.W. Skeiky, Peter Probst
  • Publication number: 20110300206
    Abstract: The present invention relates to compositions comprising proteins or polynucleotides of Chlamydia sp., in particular combinations of proteins or polynucleotides encoding them, and methods for the use of the proteins or polynucleotides in the treatment, prevention and diagnosis of Chlamydia infection.
    Type: Application
    Filed: December 21, 2010
    Publication date: December 8, 2011
    Applicants: GlaxoSmithKline Biologicals, sa, Corixa Corporation
    Inventors: Mark ALDERSON, Ajay BHATIA, Yves LOBET, Brenda MAISONNEUVE, Jean-Francois L. MAISONNEUVE, Martine MARCHAND, Pascal METTENS, Florence Bernadette NOZAY, Peter PROBST, Yasir A. SKEIKY, Samira H. SKEIKY
  • Patent number: 8052975
    Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.
    Type: Grant
    Filed: October 30, 2007
    Date of Patent: November 8, 2011
    Assignee: Corixa Corporation
    Inventors: Ajay Bhatia, Yasir A. W. Skeiky, Peter Probst
  • Publication number: 20110142872
    Abstract: Compounds and methods for the diagnosis and treatment of Chlamydial infection are disclosed. The compounds provided include polypeptides that contain at least one antigenic portion of a Chlamydia antigen and DNA sequences encoding such polypeptides. Pharmaceutical compositions and vaccines comprising such polypeptides or DNA sequences are also provided, together with antibodies directed against such polypeptides. Diagnostic kits containing such polypeptides or DNA sequences and a suitable detection reagent may be used for the detection of Chlamydial infection in patients and in biological samples.
    Type: Application
    Filed: October 30, 2007
    Publication date: June 16, 2011
    Applicant: CORIXA CORPORATION
    Inventors: Ajay Bhatia, Yasir A.W. Skeiky, Peter Probst
  • Patent number: 7952910
    Abstract: A memory device having a split power switch is provided to improve the writeability of static random access memory (SRAM) cells without adversely compromising their stability. For example, various split power switch circuits are used to permit the voltage or current of a power supply line connected with one side of an SRAM cell to drop during write operations. This drop weakens one side of the SRAM cell and reduces the drive-fight between transistors of the SRAM cell and external write circuitry. As a result, the minimum voltage for writing new logic states into the SRAM cell is reduced to permit overall lower operating voltages for the SRAM cell and related circuitry. By continuing to maintain a second side of the SRAM cell at the reference voltage or current, the SRAM cell can successfully switch to a newly written logic state.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: May 31, 2011
    Assignee: Oracle America, Inc.
    Inventors: Yolin Lih, Dennis Wendell, Jun Liu, Daniel Fung, Ajay Bhatia, Shyam Balasubramanian
  • Patent number: 7872935
    Abstract: Static random access memory (SRAM) cells and methods of operation are provided which may be used to provide improved writeability and stability to support low voltage operation of memory devices. For example, in one implementation, by temporarily interrupting the connection between portions of an SRAM cell and a power source such as a reference voltage or current source, the writeability of SRAM cells can be improved. Additional read port implementations are also provided to facilitate low voltage operation. In another implementation, a power switch circuit responsive to a word line and logic signals may be used to provide such interruptions.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: January 18, 2011
    Assignee: Oracle America, Inc.
    Inventor: Ajay Bhatia
  • Patent number: 7869263
    Abstract: An elastic power header device and methods of operation are provided to improve the read margin of static random access memory (SRAM) cells by increasing read stability, reducing read disturbance and improving the Signal to Noise Margin (SNM) figure of merit. For example, various implementations of an elastic power header device are utilized as programmable resistances to permit the power supply lines to reach a maximum voltage. Allowing the power supply lines to reach the reference voltage allows more flexibility in read margin and read stability. Furthermore, this additional flexibility can be controlled by means for adjusting a voltage. This adjustment voltage can fine-tune the programmable resistances so that the read margin can be more conveniently controlled.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: January 11, 2011
    Assignee: Oracle America, Inc.
    Inventors: Yolin Lih, Ajay Bhatia, Dennis Wendell, Jun Liu, Daniel Fung, Shyam Balasubramanian
  • Patent number: 7710155
    Abstract: A dynamic latch includes a first stage for receiving an input data value and for providing true and complement logic values representing the input data value; a second stage for receiving the true and complement logic values into first and second dynamic node, when a control signal is active; and a holding that outputs the true and complement logic values while the control signal is active. The second stage may provide a feedback signal to the first stage to block propagation of changes in the input data value after the true and complement logic values have been received. The feedback signal may be derived, for example, from logic values on the dynamic nodes. A holding circuit may be provided.
    Type: Grant
    Filed: April 20, 2007
    Date of Patent: May 4, 2010
    Assignee: Oracle America, Inc.
    Inventors: Ajay Bhatia, Uttam Saha
  • Patent number: 7672187
    Abstract: An elastic power header device and methods of operation are provided to improve both the read and the write margin of static random access memory (SRAM) cells by increasing read stability, reducing read disturbance and improving the Signal to Noise Margin (SNM) figure of merit. For example, various implementations of an elastic power header device are utilized as programmable resistances to permit the power supply lines to reach a maximum voltage. Allowing the power supply lines to reach the reference voltage allows more flexibility in read margin, write margin and read stability. Furthermore, this additional flexibility can be controlled by means for adjusting a voltage. This adjustment voltage can fine-tune the programmable resistances so that the read margin and the write margin can be more conveniently controlled.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 2, 2010
    Assignee: Sun Microsystems, Inc.
    Inventors: Yolin Lih, Ajay Bhatia, Dennis Wendell, Jun Liu, Daniel Fung, Shyam Balasubramanian