Abstract: Systems and methods for a magnetic braking system for controlling the descent of a payload against gravity are disclosed herein. The magnetic braking system may allow for a user to descend along a descending structure, such as a rope, hands-free. A plurality of conductive bands, comprising a non-ferromagnetic material, may be affixed to an exterior of the descending structure. The payload may be connected to the descending structure via a lanyard having a collar that circumferentially attaches to the descending structure. The collar may comprise magnetic assemblies arranged as a linear Halbach array. As the collar translates past the conductors, eddy currents may be generated within the conductive bands, resulting in a repelling magnetic field that may provide a braking force that acts upon the collar, thereby slowing the descent of the payload.

Abstract: A still picture video telephone transmission system for transmitting and receiving, via a telephone line, a still picture taken by a camera; a picture signal is transmitted and received by a transmitting circuit and a receiving circuit, to which improvements are made so as to display a still picture clearly without distortion. For this purpose, the transmitting circuit sends picture element signals together with image correcting signals such as a picture element displacement detecting signal, a phase inversion detecting signal, and settling data. The receiving circuit detects the image correcting signals in the picture element signal, and makes the necessary corrections so as to enable the still picture to be displayed in good shape.