Patents by Inventor K. Krishna Mahesh

K. Krishna Mahesh 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).

  • Low noise, high CMRR and PSRR input buffer
    Patent number: 8330537
    Abstract: A rail-to-rail buffer receiving a differential input signal and generating a differential output signal includes first and second amplifier circuits configured in a pseudo differential buffer structure and first and second comparators coupled to compare the respective part of the differential input signal and a first voltage and to generate select signals. Each of the first and second amplifier circuits includes first and second complementary differential input stages and the first and second comparators generate respective select signals to turn on only one of the first or the second differential input stage in each amplifier circuit depending on a value of the respective part of the differential input signal. In operation, the first and second complementary differential input stages of each amplifier circuit not being turned on at the same time.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: December 11, 2012
    Assignee: National Semiconductor Corporation
    Inventors: Gururaj Ghorpade, Theertham Srinivas, D V J Ravi Kumar, Mehmet Aslan, K. Krishna Mahesh