Abstract: The invention relates to a ring installation pistol (1), which is used to automatically install orthodontic rings made of elastic material, which are molded onto a strip (7). By pulling the trigger (2), which is installed in a pistol-shaped housing (3), the working piston (4) is pressed forward. There, the wire fork tips (5), which have been moved toward each other, reach into one of the molded-on rings (6) and remove said ring from the strip of the ring by pulling the ring. At the same time, the magazine (8) moves to the side. The ring separated in such a way is then expanded by the spreading of the forks and pushed off onto a metal lock. When the trigger is returned, a gear (10) in the magazine is actuated by means of a transport lever (9), which gear moves the strip by means of a transport wheel (11) in such a way that the next ring on the strip can be grabbed in the following operation.

Abstract: Groups (e.g. 3) of parallel digital video input signals having a first frequency are provided, each group having a first number (e.g. 8) of binary bits. The parallel signals in each group correspond in gray scale to the signals providing one of the colors in a single color pixel. The parallel signals may have a first particular frequency. The parallel digital signals are serialized at a second frequency constituting an integral multiple (e.g. 3) of the frequency of the parallel signals. The serialized signals are converted in a look-up table to serialized signals having the second frequency. The number of bits in each group of the signals from the look-up table have an arbitrary relationship to the number of the binary bits in each group introduced to the look-up table. For example, the number of binary bits in each group from the look-up table may be ten (10). The signals from the look-up table are converted to analog signals which produce a gray scale image on a monitor face.