Patents by Inventor Badrinarayanan Kothandaraman

Badrinarayanan Kothandaraman 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: 20070139029
    Abstract: A reference circuit can include a reference section that provides a reference value for other circuits of an integrated circuit and can be enabled and disabled in response to an enable signal. The reference circuit can include at least a first node, draw a reference current in the enabled mode, and draw essentially no current in the disabled mode. A pulse start-up section can provides a low impedance path between the first node and a first potential for a predetermined duration in response to the reference circuit being enabled. A continuous start-up section can provide a low impedance path between the first node and the first potential based on a logic state of an enable signal.
    Type: Application
    Filed: August 25, 2006
    Publication date: June 21, 2007
    Inventors: Damaraju Naga Radha Krishna, Badrinarayanan Kothandaraman, Sushma Nirmala Sambatur
  • Publication number: 20070140037
    Abstract: A line driver circuit can include an integrated circuit substrate of a first conductivity type having at least a first and a second well of a second conductivity type formed therein. The second well can be coupled to a first power supply node. A first transistor can be formed in the first well having a source coupled to a first input signal node, a drain coupled to a conductive line, and a gate coupled to a second input signal node. A second transistor can have a source coupled to a second power supply node, a drain coupled to the conductive line, and a gate coupled to the second input signal node. A third transistor can be formed in the second well and have a source coupled to the first power supply node, a drain coupled to the first well, and a gate coupled to receive a mode signal.
    Type: Application
    Filed: August 25, 2006
    Publication date: June 21, 2007
    Inventors: Arun Khamesra, Badrinarayanan Kothandaraman
  • Patent number: 7227804
    Abstract: A memory device (200) can include a memory cell block (202), a standby current source (206), an active current source (208), and a clamping device (212). In a standby mode, a standby current source (206) can provide constant standby current ISTBY to memory cell block (202) via block supply node (204). In an active mode, active current source (208) can provide current to accommodate current necessary for active operations (e.g., accessing the memory cell block). A clamping circuit (212) can provide additional current in the event a block supply node (204) potential VCCX collapses due to the presence of micro-defects. In addition, compensation for process variation can be achieved by a self regulating well (454) to source (404) back bias that can modulate the threshold voltage of p-channel transistors of memory cells within the well (454), reducing overall leakage.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: June 5, 2007
    Assignee: Cypress Semiconductor Corporation
    Inventors: Badrinarayanan Kothandaraman, Eric Mann, Thurman J. Rodgers