Apparatus and method for transmitting of energy and/or data between a source and a receiver movable relative thereto
First Claim
1. An apparatus for transmitting energy and information between a source and a receiver movable relative to the source, comprising:
- a first coil coupled to the source;
a second coil coupled to the receiver and rotatable about a rotation axis relative to the first coil; and
a magnetic field transmitter of magnetizable material for transmitting a magnetic field generated by the first coil to the second coil for inducing a current in the second coil;
wherein the rotation axis of the rotatable second coil coincides with a longitudinal axis of the magnetic field transmitter, and wherein the magnetic field transmitter of magnetizable material extends through the first and second coils.
1 Assignment
0 Petitions
Accused Products
Abstract
An apparatus for transmitting energy and/or information between a source and a receiver movable relative to the source includes a first coil coupled to the source, a second coil coupled to the movable receiver and movable relative to the first coil, and means for transmitting a magnetic field generated by the first coil to the second coil for inducing a current in the second coil. Thereby, it is achieved that the receiver can be energized, without having to use a battery for this. Furthermore, information may thereby be transmitted from the source to the receiver. By taking out energy from the magnetic field and by modulation of the same induced thereby, information also may be transmitted from the receiver to the source.
9 Citations
14 Claims
-
1. An apparatus for transmitting energy and information between a source and a receiver movable relative to the source, comprising:
-
a first coil coupled to the source;
a second coil coupled to the receiver and rotatable about a rotation axis relative to the first coil; and
a magnetic field transmitter of magnetizable material for transmitting a magnetic field generated by the first coil to the second coil for inducing a current in the second coil;
wherein the rotation axis of the rotatable second coil coincides with a longitudinal axis of the magnetic field transmitter, and wherein the magnetic field transmitter of magnetizable material extends through the first and second coils. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of transmitting energy and information between a source coupled to a coil and a receiver movable relative to the source and coupled to a second coil movable relative to the first coil and rotatable about a rotation axis, comprising the steps of:
-
feeding alternating current from the source to the first coil for generating a magnetic field;
transmitting the magnetic field to the second coil, with the use of a magnetic field transmitter of magnetizable material for transmitting a magnetic field, which has a longitudinal axis, for inducing current in the second coil through the magnetic field, wherein the rotation axis of the second coil coincides with the longitudinal axis, wherein the magnetic field transmitter of magnetizable material extends through the first and second coils;
transmitting the current induced in the second coil to the receiver. - View Dependent Claims (12, 13, 14)
-
Specification