Method and arrangement for communicating between vehicles
First Claim
1. A method for transferring information between a vehicle and a transmitter, comprising the steps of:
- transmitting a unique pseudorandom noise signal by the transmitter in a carrier-less fashion composed of frequencies within a pre-selected band;
encoding information in the noise signal relating to an identification of the transmitter and a position of the transmitter; and
providing the vehicle with means for extracting the information from the noise signal.
2 Assignments
0 Petitions
Accused Products
Abstract
Method for transferring information between a vehicle and a transmitter in which a unique pseudorandom noise signal is transmitted by the transmitter in a carrier-less fashion composed of frequencies within a pre-selected band. Information is encoded in the noise signal relating to an identification of the transmitter and a position of the transmitter and the vehicle is provided with a device for extracting the information from the noise signal. The code to use for encoding the noise signal may be selected based on the position of the transmitter so that analysis of the code, or a portion thereof, provides an indication of the position of the transmitter. Information about accidents, weather conditions, road conditions, map data and traffic control devices and about errors in a GPS signal can also be encoded in the noise signals. The transmitter may be at a fixed location or in another vehicle to thereby enable vehicle-to-vehicle communications for the purposes of collision avoidance, intelligent highway applications and the like.
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Citations
22 Claims
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1. A method for transferring information between a vehicle and a transmitter, comprising the steps of:
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transmitting a unique pseudorandom noise signal by the transmitter in a carrier-less fashion composed of frequencies within a pre-selected band;
encoding information in the noise signal relating to an identification of the transmitter and a position of the transmitter; and
providing the vehicle with means for extracting the information from the noise signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22)
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16. An arrangement for transferring information between a vehicle and a transmitter, comprising:
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an antenna mounted on the vehicle and capable of transmitting and receiving radar waves;
a position determining device for determining the position of the vehicle; and
a processor coupled to said antenna and said position determining device for directing the transmission of encoded noise signals from said antenna including information about the position of the vehicle and identification of the vehicle.
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Specification