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Dummy information for location privacy in location based services

  • US 8,559,927 B2
  • Filed: 12/21/2010
  • Issued: 10/15/2013
  • Est. Priority Date: 12/21/2010
  • Status: Expired due to Fees
First Claim
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1. A method for protecting location privacy by employing dummy information when using location based services, the method comprising:

  • connecting to a location based service (LBS) provider;

    submitting a user'"'"'s actual location and a first sub-group of dummy locations representing a maximum number of dummy locations allowed to be submitted by the user based on one or more constraints to the LBS provider, wherein the first sub-group is selected among a total group of dummy locations representing a maximum number of dummy locations allowed by the LBS provider regardless of any constraints, the one or more constraints comprising an available bandwidth, a power consumption of a computing device connecting to the LBS provider, and/or a service requirement of the LBS provider; and

    receiving location based service data associated with a second sub-group of dummy locations and the user'"'"'s actual location from the LBS provider, wherein the second sub-group is a subset of the first sub-group and the second sub-group of dummy locations is selected using a sub-code that represents an index between the user'"'"'s actual location and the second sub-group of dummy locations.

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