Patents by Inventor Parthiban Rajendran

Parthiban Rajendran 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).

  • System and methods for improving opportunistic envelope tracking in a multi-subscriber identity module (SIM) wireless communication device
    Patent number: 9374786
    Abstract: Various embodiments enable a multi-SIM multi-active (MSMA) communication device to operate a power amplifier in a power saving envelope tracking mode when a first radio frequency (RF) resource is supporting data transmission to a communication network associated with a first SIM and a second RF resource is supporting a voice call in discontinuous transmission mode. A MSMA communication device processor may monitor the second RF resource supporting the voice call for silence periods, the power amplifier of the first RF resource may operate in a first power-saving mode during silence periods on the voice call, and the power amplifier of the first RF resource may operate in a second power-saving mode when the voice call on second RF resource is not in a period of silence. Periods of silence may be determined by monitoring a protocol stack of the second RF resource for silence descriptor (SID) frames scheduled for transmission.
    Type: Grant
    Filed: February 17, 2015
    Date of Patent: June 21, 2016
    Assignee: QUALCOMM Incorporated
    Inventors: Ankit Maheshwari, Subbarayudu Mutya, Revathi Sundara Raghavan, Qijia Liu, Parthiban Rajendran