Patent ID: 7423257
Filing Date: 2008-09-09
Classification: A61B,H04B

Abstract:
1. A signal transmission device for transmitting a signal between two elements that are moving relative to each other, comprising: a signal transmission device comprising at least one RF strip conductor, mounted on a first of said two elements; a reception device comprising at least one scanning unit for said RF strip conductor mounted at a second of said two elements; said strip conductor and said scanning unit being mounted respectively on said first of said elements and said of second of said elements to cause said scanning unit to move along a longitudinal section of said strip conductor during at least a portion of the relative movement of the two elements; said strip conductor comprising a dielectric layer having electro-optical properties disposed between two electrically conductive strips, across which said signal is fed, said electro-optical properties locally and temporally changing dependent on said signal; and said scanning unit comprising a light source and an opto-electronic detector, said light source emitting a light beam that interacts with said dielectric layer as said scanning unit moves with said second of said elements along said longitudinal section of said strip conductor, said localized, temporal changes in said electro-optical properties of said dielectric layer altering said light beam, and said altered light beam being detected by said opto-electronic detector.