Abstract An induction radio transmission system for vehicles wherein three spaced conductors are installed in parallel along the vehicle path with a generator feeding an in-phase signal electric current to the outer of said three conductors and the signal electric current in opposite phase to the remaining center conductor. Two antenna are mounted aboard the vehicle and are respectively and cooperatively coupled with the magnetic fields of opposite phase generated by the energized conductors and are serially connected to additively combine the signal received from each antenna and cancel unwanted noise. The system may be reversed such that the antennas are energized to induce signal current flow in the conductors.
An induction radio transmission system for moving vehicles comprising three evenly spaced conductors installed in parallel along a vehicle path of movement, generator means to simultaneously energize the outer two conductors of said three with an in-phase signal electric current while energizing the remaining center conductor with said signal electric current in opposite phase such that matched magnetic fields of opposite phase are created between each outer conductor and said center conductor respectively, two spaced antennas mounted in a common plane transverse to said conductors on a vehicle following said path and uniformly positioned in relation to each other and said conductors such that they are inductively coupled with said matched magnetic fields of opposite phase respectively, said antennas being serially connected such that any signal electric current flowing therein is additively combined.
Claim 2
Dependent Claim
133 words
An induction radio transmission system for moving vehicles comprising three evenly spaced conductors installed in parallel along a vehicle path of movement, generator means to simultaneously energize the outer two conductors of said three with an in-phase signal electric current while energizing the remaining center conductor with said signal electric current in opposite phase such that matched magnetic fields of opposite phase are created between each outer conductor and said center conductor respectively, two spaced antennas mounted in a common plane transverse to said conductors on a vehicle following said path and uniformly positioned in relation to each other and said conductors such that they are inductively coupled with said matched magnetic fields of opposite phase respectively, said antennas being serially connected such that any signal electric current flowing therein is additively combined.