Patent ID: 7899149

Claim:
A rotating data transmission path comprising: a rotating part; a stationary part; and a rotary joint with a transmission line arrangement and a receiving coupler arrangement, for transmission of signals between the rotating part and the stationary part; with the rotating part comprising: at least one data source with a first transmitter, for generating a digital data stream; at least one first line for relaying the digital data stream from the first transmitter; and at least one driver with a first receiver for receiving the digital data stream along the first line, and for controlling the transmission line arrangement; and with the stationary part comprising: at least one receiving unit for receiving and conditioning signals of a data stream received via the receiving coupler arrangement, having a second transmitter for retransmitting the data stream; at least one second line for relaying the data stream retransmitted from the second transmitter; and at least one data sink with at least one second receiver for receiving the retransmitted data stream along the second line; wherein at least one of the data source, driver, receiving unit, and data sink comprises a clock modulator for broadening a frequency spectrum of a data clock, so that further spectral spikes occur in close proximity of individual spectral spikes of an unmodulated data clock, whereby a signal amplitude of the individual spectral spikes is reduced.