Telecommunication Systems, Inc.

Telecommunications Systems, Inc.

Bob Barcklay

Kevin Tsurutome

Robert Wang

John Hahn

Ritesh Bansal

A remotely provisioned proxy within a wireless/mobile phone that proxies a wireless communication path between a disconnected piconet (e.g., BLUETOOTH&#x2122;) device and a network resource such as a universal resource locator (URL) via a mating mobile phone. Thus, an application proxy module embodied within the mobile phone provides managed access of a piconet device connected to the mating mobile phone to remote services. A disconnected piconet device uses the full data bandwidth available to a wireless phone, without the need for the disconnected piconet device to include its own separate wireless front end, or to require use of a modem within the mobile phone. Thus, using a mobile phone with application proxy, the user need not pay for the luxury of a tethered data plan.

Remotely provisioned wireless proxy

The accuracy of a reverse geocode for a GPS fix in a mobile phone navigation device is improved significantly by considering together the user's last known location on an original route, the elapsed time between the last known location on the original route and the latest GPS fix, and the likelihood that the user could have traveled from the last known location on the original route to one of numerous candidate locations (generated from the reverse geocode) in the elapsed time. The navigation server relies only on a GPS fix, timestamps, and a back-end routing database to provide improved or superior accuracy of reverse geocoding a GPS fix (selection of a point on a road) when a relevant user has deviated from the intended route. The reverse geocoding allows for accurate and functional re-routing capabilities.

Probabilistic reverse geocoding

A tiled-map display control with a predictive caching technique that minimizes user wait time and provides at least the illusion of continuous panning, even while map tile images are being loaded. Important components of the tiled map display are its definition and cached use of map tiles, as well as the way that the map tiles are put together on a small screen. Easy, seamless, wait-free and convenient viewing of a map for a user of a wireless device provides information, e.g., mapped traffic conditions. The disclosed embodiments are techniques that have been reduced to practice in both a BREW platform, and then in a J2ME platform, and deployed for operation in major carrier wireless networks. The invention has particular applicability for use in wireless devices with typically smaller display screens requiring the need for panning, and limited bandwidth capabilities of the supporting wireless network.

Tiled map display on a wireless device

The accuracy of a reverse geocode for a GPS fix in a mobile phone navigation device is improved significantly by considering together the user's last known location on an original route, the elapsed time between the last known location on the original route and the latest GPS fix, and the likelihood that the user could have travelled from the last known location on the original route to one of numerous candidate locations (generated from the reverse geocode) in the elapsed time. The navigation server relies only on a GPS fix, timestamps, and a back-end routing database to provide improved or superior accuracy of reverse geocoding a GPS fix (selection of a point on a road) when a relevant user has deviated from the intended route. The reverse geocoding allows for accurate and functional re-routing capabilities.

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Berkely, CA, United States of America

Bob Barcklay