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Method and apparatus for tracking, in real-time, a position of a mobile wireless communication device

  • US 9,641,973 B2
  • Filed: 12/09/2014
  • Issued: 05/02/2017
  • Est. Priority Date: 12/12/2013
  • Status: Expired due to Fees
First Claim
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1. A data processing apparatus comprising:

  • one or more integrated circuit (IC) devices including a location processor configured to acquire and track measurements of location for a mobile wireless communication device; and

    a host processor programmed with a host software manager configured to obtain various positioning input signals from different device positioning technologies and assemble a selected set of the various positioning input signals into a unified format;

    wherein the data processing apparatus includes a hybrid fusion engine configured to receive data from the host software manager in the unified format and calculate a position of the mobile wireless communication device using the received data in accordance with input type information for the received data;

    wherein the host software manager is further configured to manage a location database for wireless positioning and map aiding information used with the position calculation;

    wherein the location database comprises a virtual database distributed between a first database local to the mobile wireless communication device and one or more second databases accessible over a network, wherein the host software manager maintains data relevant to the calculated position in the first database; and

    wherein the host software manager controls selection and indexing of map data based on global coordinates from a satellite navigation receiver, including caching map data in the first database.

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