Patent ID: 6384587
Filing Date: 2002-05-07
Classification: H01F,H04M,H04N

Abstract:
A non-contact signal and power transmission apparatus for signal and power transmission between a main unit and an auxiliary unit via electromagnetic induction without contact, said non-contact signal and power transmission apparatus comprising:first and second power coils for feeding power from a main unit to an auxiliary unit, each of said first and second power coils having a power core with a hollow and a wire wound around said power core, pairs of said first and second power coils being located at corresponding positions of the main unit and of the auxiliary unit, respectively, and at least one pair of signal coils for transmitting signals between the main unit and the auxiliary unit, each signal coil having a signal core and a wire wound around said signal core, said signal coils being located at corresponding positions of the main unit and of the auxiliary unit, respectively, wherein at least one pair of said signal coils is located in corresponding hollows of said power cores of said first and second power coils.