Server-based navigation system and method of operating same

Details Server-based navigation system and method of operating same Server-based navigation system and method of operating same

2003-06-03

2004-02-10

Chin, Gary (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Determination of travel data based on the start point and...

C701S209000, C701S211000, C340S995120, C340S995200

Reexamination Certificate

active

06691028

ABSTRACT:

FIELD OF THE INVENTION
This invention in general relates to a server-based navigation system and method of transmitting navigation data to a navigation unit and, more particularly, to a system and method that reduces the complexity of the unit and minimizes the data transmitted to the unit.
BACKGROUND OF THE INVENTION
Devices that provide navigation guidance to a driver in a vehicle are well known. In conventional systems, a navigation unit is installed in the vehicle. The navigation unit typically has an interactive visual screen or buttons that allows a driver to enter a desired destination location. The navigation unit has memory or a CD drive that keeps map data and a processor that generates routes based on the map data and desired destination. Conventional navigation units having map data and map generation processors are expensive. They also require a user to update the map data and do not permit the unit to select a route based on other considerations such as current traffic patterns or delays.
There has been increasing interest in server-based navigation systems. A server-based navigation system typically downloads map information to a navigation unit by a wireless communication. The downloaded information contains the topology or other attribute information much like the original map information. The downloaded information can become quite large and may conflict with available bandwidth. Additionally, such systems still require excessive computations to be done by the navigation unit, increasing the complexity and cost of the navigation unit.
There is a need to reduce the computation complexity in a navigation unit. Reducing the computational complexity of the navigation unit reduces the cost of electronics required to perform vehicle navigation. Additionally, there is a need to decrease or minimize the amount of data transmitted to a navigation unit. Decreasing or minimizing the amount of data transmitted to the navigation unit allows the unit to respond quicker and reduces data usage and cost for the wireless communications.
It is, therefore, desirable to provide an improved navigation system and method to overcome or minimize most, if not all, of the preceding problems.


REFERENCES:
patent: 4951212 (1990-08-01), Kurihara et al.
patent: 5131020 (1992-07-01), Liebesny et al.
patent: 5172321 (1992-12-01), Ghaem et al.
patent: 5369588 (1994-11-01), Hayami et al.
patent: 5774827 (1998-06-01), Smith, Jr. et al.
patent: 5892463 (1999-04-01), Hikita et al.
patent: 5911773 (1999-06-01), Mutsuga et al.
patent: 5933100 (1999-08-01), Golding
patent: 5948042 (1999-09-01), Heimann et al.
patent: 6023241 (2000-02-01), Clapper
patent: 6211798 (2001-04-01), Albrecht et al.
patent: 6212470 (2001-04-01), Seymour et al.
patent: 6212472 (2001-04-01), Nonaka et al.
patent: 6216086 (2001-04-01), Seymour et al.
patent: 6263276 (2001-07-01), Yokoyama et al.
patent: 6275585 (2001-08-01), Ablay et al.
patent: 6278939 (2001-08-01), Robare et al.
patent: 6278941 (2001-08-01), Yokoyama
patent: 6529826 (2003-03-01), Kawai et al.
patent: 6542816 (2003-04-01), Ito et al.
patent: 2002/0027511 (2002-03-01), Horita et al.
patent: 2002/0111737 (2002-08-01), Hoisko
patent: 0 756 153 (1997-01-01), None
patent: 0 883 871 (2002-09-01), None
patent: 0 756 153 (2002-11-01), None
patent: 1 262 936 (2002-12-01), None

Affiliated with

Also associated with

Rating

Server-based navigation system and method of operating same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Server-based navigation system and method of operating same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Server-based navigation system and method of operating same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3335096