Abstract: A method of providing vehicular navigation information includes providing a head unit embedded in a vehicle and configuring the head unit as a client device running an HTML-5 based navigation app. A smart phone is configured as a server device and linked to the head unit utilizing wireless local area network technologies. The wireless local area network technology may be Bluetooth. The smart phone transmits to the head unit via the wireless local area network technologies as needed a navigational map tile in vector format, a calculated route, and a proper subset of navigational raw voice guidance data stored on the smart phone. The HTML-5 based navigation app renders the navigational map tile and the calculated route geometry on a display of the head unit and the head unit plays at least a portion of the proper subset of the navigational raw voice guidance data through a speaker.

Abstract: A method of providing vehicular navigation information includes providing a head unit embedded in a vehicle and configuring the head unit as a client device running an HTML-5 based navigation app. A smart phone is configured as a server device and linked to the head unit utilizing wireless local area network technologies. The wireless local area network technology may be Bluetooth. The smart phone transmits to the head unit via the wireless local area network technologies as needed a navigational map tile in vector format, a calculated route, and a proper subset of navigational raw voice guidance data stored on the smart phone. The HTML-5 based navigation app renders the navigational map tile and the calculated route geometry on a display of the head unit and the head unit plays at least a portion of the proper subset of the navigational raw voice guidance data through a speaker.

Abstract: A navigation system for providing navigation information to a user responsive to user commands includes (1) a user device for issuing user commands and displaying a user interface to the user and (2) a navigation device for connecting to the user device and receiving user commands from the user device and transmitting navigation information to the user device. The information received from the user device includes updated map information, traffic information, news information, weather information, event-related information, business-related information, and user-specified information. The navigation device performs route following based on commands received from the user device and transmits routing instructions to the user device. The navigation device and user device are separately operable by a user.