Google Inc.

Kevin Michael Grennan

Yiyang Joy Ding

When a portable device cannot connect to a network, offline navigation directions are generated and displayed by obtaining navigation instructions stored on the portable device which direct a user from a first location to a second location. When a network connection later becomes available, the portable device obtains online navigation directions from the first location to the second location from a navigation server. The portable device updates the offline navigation directions in a least disruptive manner, with information from the online navigation directions by determining the difference between the online and the offline navigation directions. If the online and offline navigation directions are similar, the portable device updates the display with estimated time data, traffic data, etc., from the online navigation directions. Otherwise, if there is a significant difference between the online and offline navigation directions, the portable device displays the online navigation directions as an alternative route.

Integrating online navigation data with cached navigation data during active navigation

An initial sequence of one or more symbols is received via a user interface. An attempt is made to send a request for online suggestions to a network server via a communication network, the request including at least one symbol in the initial sequence. When the initial sequence is less than n symbols long, and if no response to the request is received, the initial sequence is displayed without generating offline suggestions. When the initial sequence is at least n symbols long, and if no response to the request is received within a predetermined period of time, offline suggestions consistent with the initial sequence are generated using offline geospatial data stored in the computing device, and the offline suggestions are provided via the user interface.

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San Francisco, CA, United States of America

Kevin Michael Grennan