Patents by Inventor Ankur Guha Roy

Ankur Guha Roy 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).

  • Use of redundancy in sub-ranging time-to-digital converters to eliminate offset mismatch issues
    Patent number: 9804573
    Abstract: A time-to-digital converter utilizes both coarse and fine quantizers and addresses mismatch by using redundant bits in the coarse time representation and the fine time representation. The redundant bits are compared and if the redundant bits are the same, no mismatch correction is required but if the redundant bits are different a correction is applied to correct the redundant portion of the coarse time information. The redundant portion includes the most significant bit generated by the fine quantizer and the least significant bit of the coarse quantizer. The correction adds to or subtracts from the redundant information.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: October 31, 2017
    Assignee: Silicon Laboratories Inc.
    Inventors: Brian G. Drost, Ankur Guha Roy