Schleifring Und Apparatebau Gmbh

Siemens Aktiengesellschaft

Non-contacting Rotary Joint

Stephan Lindorfer

Nils Krumme

Georg Lohr

Stefan Popescu

Harry Schilling

Herbert Weithmann

Ulrich Bertl

A rotary joint for transmission of data from a data source to a data sink, between a rotating part and a stationary part, includes a transmission line arrangement fed from a transmission means, and also a receiving means which taps signals from the transmission line arrangement with the aid of a receiving coupler arrangement. A control unit controls the data source. For transmission of data having a small band-width an encoder is provided which converts the data from the data source to a duobinary code.

Non-contacting rotary joint

A non-contacting data path for rotating data transmission of digital data from a data source to a data sink includes at least one clock modulator. A data clock frequency is specifically modulated with the clock modulator to widen a spectrum of data signals and achieve improved EMC properties in measurements according to valid EMC Standards. Owing to use of a plurality of clock modulators along a course of a non-contacting rotary transmission path, signal jitter caused by individual components of the data transmission path is in each case replaced by artificially caused jitter of clock modulation. Thus, data transmission with defined jitter and defined signal quality can be achieved.

Non-contacting rotary joint with clock modulation

A rotating data transmission device for computer tomographs, for transmission from a rotating part to a stationary part that is rotatably supported relative to the rotating part, comprises at least a rotating high-speed data transmitter unit, a rotating high-speed transmission line, a stationary high-speed data receiver unit. The rotating high-speed data transmitter unit contains a rotating pattern controller and the stationary high-speed data receiver unit contains a stationary data analyzer for analyzing patterns generated by the rotating pattern controller. Furthermore unit controllers are provided to control the units.

Rotating data transmission device

A device for signal transmission in computer tomographs comprising a rotating part supported to be rotatable with respect to a stationary part. A transmission controller is provided on the rotating part for compiling, from video data of a video source and from control information of a control unit, serial data for transmission to the stationary part by means of a rotary joint. A receiving controller is provided in the stationary part for receiving the serial data transmitted by the rotary joint and for evaluating these data and communicating the control information contained therein to a control unit, and the video data to a data sink. The serial data generated by the transmission controller comprise data frames, and video data and control information each being transmitted in a data frame.

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Müchen, Germany

Stephan Lindorfer