Patents by Inventor Juha Tapani Rostrom

Juha Tapani Rostrom 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).

  • Systems and methods for signal acquisition using predicted environmental context
    Patent number: 8964510
    Abstract: This disclosure involves methods and systems for a GNSS receiver to ascertain its environmental context and subsequently adjust the signal processing and search algorithms to provide improved acquisition. A rapid pre-scan is performed to determine the presence of relatively strong signals. If no satellites are found in the initial pre-scan, successively more sensitive searches are conducted until at least one satellite is acquired. The information from these pre-scans is used to predict the environmental context of the receiver and correspondingly tailor the parameters for the remaining search operations.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: February 24, 2015
    Assignee: Qualcomm Incorporated
    Inventors: Abdelmonaem Lakhzouri, Juha Tapani Rostrom
  • Optimized time acquisition algorithm for low-power GPS-based watch applications
    Patent number: 7920441
    Abstract: A GPS enabled timepiece. A Global Positioning System (GPS) enabled timepiece in accordance with the present invention comprises a timepiece, the timepiece comprising a local oscillator, and a GPS receiver, coupled to the timepiece, the GPS receiver using the local oscillator to predict a time arrival of a GPS message from a GPS satellite, wherein the GPS receiver is powered on based on the predicted time.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: April 5, 2011
    Assignee: Atheros Communications, Inc.
    Inventor: Juha Tapani Rostrom
  • OPTIMIZED TIME ACQUISITION ALGORITHM FOR LOW-POWER GPS-BASED WATCH APPLICATIONS
    Publication number: 20080074950
    Abstract: A GPS enabled timepiece. A Global Positioning System (GPS) enabled timepiece in accordance with the present invention comprises a timepiece, the timepiece comprising a local oscillator, and a GPS receiver, coupled to the timepiece, the GPS receiver using the local oscillator to predict a time arrival of a GPS message from a GPS satellite, wherein the GPS receiver is powered on based on the predicted time.
    Type: Application
    Filed: August 8, 2007
    Publication date: March 27, 2008
    Inventor: Juha Tapani Rostrom