Patents by Inventor Shiva Sharath Babu Kaleru

Shiva Sharath Babu Kaleru 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).

  • Self-calibrated digital-to-analog converter
    Patent number: 9379728
    Abstract: A digital-to-analog converter has an output. An analog-to-digital converter senses a voltage at the output of the digital-to-analog converter and generates a digital voltage signal. A source mismatch estimator processes the digital voltage signal to output an error signal indicative of current source mismatch within the digital-to-analog converter. An error code generator generates a digital calibration signal from the error signal. The digital calibration signal is converted by a redundancy digital-to-analog converter to an analog compensation signal for application to the output of analog-to-digital converter to nullify effects of the current source mismatch.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: June 28, 2016
    Assignee: STMicroelectronics International N.V.
    Inventors: Pratap Narayan Singh, Shiva Sharath Babu Kaleru, Ankur Bal, Mohit Singh, Rakesh Malik