US Patent No. 9,510,152

SYSTEM AND METHOD FOR SCHEDULING LOCATION MEASUREMENTS


Patent No. 9,510,152
Issue Date November 29, 2016
Title System And Method For Scheduling Location Measurements
Inventorship Andrew Weiss, San Ramon, CA (US)
Scott Hotes, Berkeley, CA (US)
Assignee Location Labs, Inc., Emeryville, CA (US)

Claim of US Patent No. 9,510,152

1. A method for initiating radio signal measurements to determine mobile device location, the method comprising:
determining a plurality of locations of at least one mobile device based on radio signal measurements initiated during a first
time period;

determining acceleration of the at least one mobile device at least between the plurality of locations based on sensor measurements
performed during the first time period;

determining at least one time interval between the plurality of locations of the at least one mobile device based on time
stamps corresponding to the radio signal measurements initiated during the first time period;

initiating radio signal measurements by a particular mobile device during a second time period;
determining a first location of the particular mobile device based on the radio signal measurements by the particular mobile
device initiated during the second time period;

measuring acceleration by the particular mobile device during the second time period;
determining when to initiate radio signal measurements by the particular mobile device to determine a second location of the
particular mobile device based at least on the measured acceleration of the particular mobile device during the second time
period, the determined plurality of locations of the at least one mobile device based on measurements initiated during the
first time period, the at least one time interval between the plurality of locations of the at least one mobile device, and
the determined acceleration of the at least one mobile device based on the sensor measurements performed during the first
time period; and

initiating radio signal measurements by the particular mobile device during the second time period to determine the second
location of the particular mobile device.