Navigation system for vehicle
First Claim
1. A navigation system for a vehicle, comprising a GPS receiver, a display unit having a display screen, map storage means in which a map to be displayed on said display screen is stored, detecting means for detecting a driving position and a driving direction of said vehicle from information received from said GPS receiver, and controlling means for receiving information of a driving speed of said vehicle from said vehicle and controlling, when the driving speed is equal to or higher than a preset speed, said display unit to indicate on said display screen the driving position and driving direction of said vehicle received from said detecting means together with the map received from said map storage means but controlling, when the driving speed is lower than the preset speed, said display unit to indicate on said display screen only the driving position of said vehicle received from said detecting means together with the map received from said map storage means.
1 Assignment
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Accused Products
Abstract
A navigation system for a vehicle which does not bewilder a driver of the vehicle with heading indication also when the driving speed of the vehicle is low. The navigation system comprises a GPS receiver, a display unit, a map memory in which a map is stored, a detecting section for detecting a driving position and a driving direction of the vehicle from information received from the GPS receiver, and a controller. The controller receives information of a driving speed of the vehicle from the vehicle and controls, when the driving speed is equal to or higher than a preset speed, the display unit to indicate on a display screen thereof the driving position and driving direction of the vehicle received from the detecting section together with the map received from the map memory, but controls, when the driving speed is lower than the preset speed, the display unit to indicate only the driving position of the vehicle received from the detecting section together with the map received from the map memory.
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Citations
9 Claims
- 1. A navigation system for a vehicle, comprising a GPS receiver, a display unit having a display screen, map storage means in which a map to be displayed on said display screen is stored, detecting means for detecting a driving position and a driving direction of said vehicle from information received from said GPS receiver, and controlling means for receiving information of a driving speed of said vehicle from said vehicle and controlling, when the driving speed is equal to or higher than a preset speed, said display unit to indicate on said display screen the driving position and driving direction of said vehicle received from said detecting means together with the map received from said map storage means but controlling, when the driving speed is lower than the preset speed, said display unit to indicate on said display screen only the driving position of said vehicle received from said detecting means together with the map received from said map storage means.
Specification