Patents by Inventor Rob Kopmeiners

Rob Kopmeiners 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).

  • Time accurate control of RF over a digrf interface
    Patent number: 8542755
    Abstract: A communication system includes a RF subsystem that communicates with a BB subsystem through a digital RF-BB interface multiplexing I/Q data and control signals in both TX and RX directions. The RF subsystem includes a FIFO buffer in each respective TX and RX chain and a timer that assigns a timestamp to the continuous stream in both TX and RX chains whenever it is equal to a time event from the BB subsystem. The BB subsystem includes a sample counter that counts the number (k) of data samples at the FIFO buffer and a controller that defines the time event. Precise alignment at the air interface between a data burst from the RF subsystem and a data burst from the BB subsystem can be achieved using the timer, based on the relation between the timer value (n) and the sample count (k).
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: September 24, 2013
    Assignee: St-Ericsson SA
    Inventors: Rob Kopmeiners, Jeroen Cornelis Kuenen
  • TIME ACCURATE CONTROL OF RF OVER A DIGRF INTERFACE
    Publication number: 20100074311
    Abstract: A communication system includes a RF subsystem that communicates with a BB subsystem through a digital RF-BB interface multiplexing I/Q data and control signals in both TX and RX directions. The RF subsystem includes a FIFO buffer in each respective TX and RX chain and a timer that assigns a timestamp to the continuous stream in both TX and RX chains whenever it is equal to a time event from the BB subsystem. The BB subsystem includes a sample counter that counts the number (k) of data samples at the FIFO buffer and a controller that defines the time event. Precise alignment at the air interface between a data burst from the RF subsystem and a data burst from the BB subsystem can be achieved using the timer, based on the relation between the timer value (n) and the sample count (k).
    Type: Application
    Filed: August 12, 2009
    Publication date: March 25, 2010
    Applicant: ST-Ericsson SA
    Inventor: Rob Kopmeiners