Siemens Aktiengesellschaft

Bernd Schneider

Stefan Mueller

Udo Klotz

Helmut Rau

Franz Egger

A telephone switching system and method for switching CENTREX (CTX) calls between CTX subscribers, is provided in which the CTX subscribers comprise mobile subscribers and wired subscribers. A message interface for the transmission of CTX-specific information is established between the mobile switching center allocated to the mobile subscribers and the fixed network switching center allocated to the wired CTX subscribers, and the control of the mobile switching center is supplemented by a control part for the CTX-specific mobile call processing.

Telephone switching system and method

In the automatic equipping of, for example, printed circuit boards with components, the problem of the unknown position of the component legs occurs. According to the invention, the positions of the component legs in a component picked up by a gripper are measured by a sensor immediately before plug-in. This sensor is essentially composed of two independently horizontally movable perforated plates, each including an infrared emitting diode which emits onto a stationary position photodiode situated therebelow. The measured result can be employed for the positional correction or for the rejection or acceptance of the component.

Sensor for component plug-in

A splicing device for connecting light waveguides together by utilizing a splicing element having a centering groove for guiding the ends of the light waveguides therein characterized by a vertically moving support for the splicing element, a holding device at each side of the support being mounted for rotation on a horizontal axle and having a clamp for holding the end of the light waveguide at an acute angle to the base of the groove of the splicing element, each of the holding devices being mounted for movement in a horizontal plane so that the distance between the axles can be varied and an arrangement for controlling the movement of the axles of the holding device as a function of the angle of inclination of each device. The splicing device operates by the splicing element being vertically raised relative to the holding device so that the ends of the light waveguides are introduced into the centering groove and moved towards one another to be brought into mutual contact and after securing the ends together, the holding devices are rotated to coaxially align the cladding or jackets of the spliced waveguides for connecting by a bridge element.

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Munich, Germany

Bernd Schneider