Communication system for vehicles
First Claim
1. A communication system for a vehicle traveling over a road surface and having a front end, a forward compartment, a passenger compartment, a wall dividing the forward compartment and the passenger compartment, and a rear end;
- a detector at the front end for sensing speed detection signals impinging on said vehicle, to monitor the speed of said vehicle or a nearby vehicle and to generate an output signal in response thereto;
a radio frequency transmitter adjacent the front end for receiving said detector output signal and for transmitting a transmit signal indicative of said speed detection signals in response thereto directed toward said road surface so as to be deflected toward the passenger compartment;
a receiver adjacent said wall, either in said front compartment or in said passenger compartment, for receiving said transmit signal from the road surface and for outputting an annunciator signal in response thereto; and
an annunciator in said passenger compartment, coupled to said receiver to receive said annunciator signal and for outputting an annunciator indication in response thereto.
4 Assignments
0 Petitions
Accused Products
Abstract
A communication system for a vehicle traveling over a road surface is provided with at least one detector for sensing speed detection signals impinging on the vehicle, to monitor the speed of the vehicle or a nearby vehicle. A radiofrequency transmitter communicates the detector output to a receiver adjacent the passenger compartment of the vehicle. The receiver controls one or more annunciators to output one or more annunciator indications to the system user. The radiofrequency transmitter in one embodiment directs transmissions along a ground skip path, reflecting information over the road surface so as to enter the receiver located in or near a passenger compartment of the vehicle. A wireless control unit provides indication of system operating status and allows a user to input commands to the system.
35 Citations
20 Claims
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1. A communication system for a vehicle traveling over a road surface and having a front end, a forward compartment, a passenger compartment, a wall dividing the forward compartment and the passenger compartment, and a rear end;
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a detector at the front end for sensing speed detection signals impinging on said vehicle, to monitor the speed of said vehicle or a nearby vehicle and to generate an output signal in response thereto;
a radio frequency transmitter adjacent the front end for receiving said detector output signal and for transmitting a transmit signal indicative of said speed detection signals in response thereto directed toward said road surface so as to be deflected toward the passenger compartment;
a receiver adjacent said wall, either in said front compartment or in said passenger compartment, for receiving said transmit signal from the road surface and for outputting an annunciator signal in response thereto; and
an annunciator in said passenger compartment, coupled to said receiver to receive said annunciator signal and for outputting an annunciator indication in response thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A communication system for a vehicle traveling over a road surface and having a front end, a forward compartment, a passenger compartment, a wall dividing the forward compartment and the passenger compartment, and a rear end;
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a detector at the front end for sensing speed detection signals impinging on said vehicle, to monitor the speed of said vehicle or a nearby vehicle and to generate an output signal in response thereto;
a radio frequency transmitter adjacent the front end for receiving said detector output signal and for transmitting a transmit signal indicative of said speed detection signals in response thereto;
a receiver adjacent said wall, either in said front compartment or in said passenger compartment, for receiving said transmit signal and for outputting an annunciator signal in response thereto; and
an annunciator in said passenger compartment, coupled to said receiver to receive said annunciator signal and for outputting an annunciator indication in response thereto. - View Dependent Claims (18)
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19. A communication system for a vehicle traveling over a road surface and having a front end, a forward compartment, a passenger compartment, a wall dividing the forward compartment and the passenger compartment, a rear end and wiring from the front and rear ends to the passenger compartment carrying signals unrelated to monitoring of the speed of the vehicle;
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a detector at the front end for sensing speed detection signals impinging on said vehicle, to monitor the speed of said vehicle or a nearby vehicle and to generate an output signal in response thereto;
a radio frequency injector adjacent the front end for receiving said detector output signal and for injecting a transmit signal indicative of said speed detection signals in response thereto on said wiring for delivery to said passenger compartment;
a receiver operatively associated with said wiring for receiving said transmit signal and for outputting an annunciator signal in response thereto; and
an annunciator in said passenger compartment, coupled to said receiver to receive said annunciator signal and for outputting an annunciator indication in response thereto. - View Dependent Claims (20)
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Specification