This word can pertain to any function that can be operated from a distance, i.e. (1) video switching; (2) camera motion; (3) recording; (4) relay action. These remote functions can be caused to happen due to direct voltage over a long cable or digital information carried by cable, light, radio frequency transmission, etc. RESOLUTION (horizontal) The amount of resolvable detail in the horizontal direction in a picture. It is usually expressed as the number of distinct vertical lines, alternately black and white, which can be seen in a distance equal to picture height. RESOLUTION (vertical) The amount of resolvable detail in the vertical direction in a picture. It is usually expressed as the number of distinct horizontal lines, alternately black and white, which can theoretically be seen in a picture.
sensing When current is flowing the voltage at the end of a cable is different from the voltage at the beginning because of the resistance of the wire. The higher the current the higher this loss. Since switching power supplies contain feedback loops to keep the voltage constant it is feasible to sense the voltage at the other end of the cable with wires that do not conduct current, thus regulating the voltage were it is used, rather than where it is generated. Clever