Systems, devices and methods are provided for an improved navigational route planning device which provides more understandable, accurate and timely route calculation capabilities. The navigational aid device with route calculation capabilities includes a processor connected to a memory. The memory includes...http://www.google.es/patents/US7062378?utm_source=gb-gplus-sharePatente US7062378 - Portable navigation system and device with audible turn instructions
Portable navigation system and device with audible turn instructions
