Sirf Technology, Inc.

Sony Ericsson Mobile Communications Ab

Scott Bloebaum

Andrew Chou

Benjamin Van Roy

William O Camp, Jr

Gunnar Klinghult

Jr William O Camp

A multi-function device with a positioning function and a real time positioning engine is disclosed. The device contains also a shared processor used by the positioning function and other functions of the device, such as a mobile radio-communication function. The positioning engine performs in real time the most computational intensive calculations of the positioning function, such as downsampling, Doppler mixing and correlation calculations. Since the received signal need not be stored, the memory requirements of the positioning function are significantly reduced if aiding data is available.

Multi-function device with positioning system and shared processor

An acceleration measurement circuit is calibrated based on wireless communication signals that are received by a mobile terminal. A location of the mobile terminal is then determined using the calibrated acceleration measurement circuit.

Mobile terminals and methods for determining a location based on acceleration information

Growing community of inventors

Cary, NC, United States of America

Scott Bloebaum