Patents by Inventor Sunil Thamaran

Sunil Thamaran 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).

  • Programmable low voltage reset apparatus for multi-Vdd chips
    Patent number: 7221200
    Abstract: A programmable low voltage reset apparatus for a device having a plurality of power supplies comprises a low voltage signal generator for sensing when a power supply output decreases below a predetermined voltage and generating a reset signal, a reset selector for selecting one of the power supplies, and a programmable reference voltage for varying a reference voltage according to the voltage of the selected power supply.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: May 22, 2007
    Assignee: Cypress Semiconductor Corp.
    Inventors: Prasad Kotra, Sunil Thamaran, Shailesh Shah
  • Method and system for measuring threshold of EPROM cells
    Patent number: 6574158
    Abstract: An approach for testing an erasable programmable read-only memory (EPROM) cell for a threshold voltage is provided. A voltage lower than a source voltage that is associated with a read operation is applied to the gate of the EPROM cell. A signal is read out from the EPROM cell when the voltage is applied to the EPROM cell. The signal is used to calculate the threshold voltage of the EPROM cell.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: June 3, 2003
    Assignee: Cypress Semiconductor Corp.
    Inventor: Sunil Thamaran
  • Oscillator based power-on-reset circuit
    Patent number: 6388479
    Abstract: An apparatus comprising a first circuit and a second circuit. The first circuit may be configured to generate a first signal comprising a series of one or more pulses. The second circuit may be configured to generate a second signal in response to the first signal. The second signal may be configured to control the reset of an external device. In one example, the present invention may be implemented as a power on reset circuit.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: May 14, 2002
    Assignee: Cypress Semiconductor Corp.
    Inventors: Rajat Gupta, Sunil Thamaran