Vehicle navigation and safety systems
First Claim
1. A vehicle navigation system, comprising:
- a traffic control unit in communication with a traffic control device for determining time remaining before the traffic control device changes traffic flow;
a transmitter coupled to the traffic control unit for transmitting at least one signal to a receiver, wherein the signal represents the amount of time remaining before the traffic control device changes traffic flow;
a receiver for receiving at least one traffic signal from the transmitter and for receiving global positioning system signals; and
a navigation device for receiving the at least one traffic signal from the transmitter, alerting a driver of the time period remaining before the traffic control device changes traffic flow, and alerting the driver of locations of traffic devices.
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Accused Products
Abstract
A vehicle navigation system for alerting a vehicle driver of the presence and status of traffic devices. The vehicle navigation system may alert a driver of the time remaining before a traffic device, such as a traffic light, changes the flow of traffic. The vehicle navigation system may also alert a vehicle driver of traffic devices, such as stop signs and speed limit signs, when the driver is approaching the traffic device. The vehicle navigation system may alert a driver through audible or visual alerts, or both. The vehicle navigation system may include a display screen that may or may not be attached to a vehicle. The vehicle navigation system may also include an in-vehicle alert system enabling vehicle drivers to send alert messages to other vehicle drivers within a close proximity.
55 Citations
20 Claims
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1. A vehicle navigation system, comprising:
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a traffic control unit in communication with a traffic control device for determining time remaining before the traffic control device changes traffic flow;
a transmitter coupled to the traffic control unit for transmitting at least one signal to a receiver, wherein the signal represents the amount of time remaining before the traffic control device changes traffic flow;
a receiver for receiving at least one traffic signal from the transmitter and for receiving global positioning system signals; and
a navigation device for receiving the at least one traffic signal from the transmitter, alerting a driver of the time period remaining before the traffic control device changes traffic flow, and alerting the driver of locations of traffic devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A vehicle navigation system, comprising:
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a traffic control unit in communication with a traffic control device for determining time remaining before the traffic control device changes traffic flow;
a transmitter coupled to the traffic control unit for transmitting at least one signal to a receiver, wherein the signal represents the amount of time remaining before the traffic control device changes traffic flow;
a receiver for receiving at least one traffic signal from the transmitter; and
a navigation device for receiving the at least one traffic signal from the transmitter and alerting a driver of the time period remaining before the traffic control device changes traffic flow. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A vehicle navigation system, comprising:
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a signal generator for generating alert signals;
a receiver for receiving at least one alert signal generated by the signal generator; and
a navigation device for alerting a driver of a vehicle of the at least one alert signal. - View Dependent Claims (17, 18, 19, 20)
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Specification