Patent ID: 7599445

Claim:
Rotating data transmission device for electrical transmission of broadband digital signals between at least one first unit and at least one second unit disposed to be rotatable relative to the first unit, wherein: the at least one first unit comprises; a data source for generating a serial data stream; a transmitter for generating electrical signals from the serial data stream of the data source; a transmission conductor structure for carrying the electrical signals generated by the transmitter; the at least one second unit comprises: a receiving antenna for tapping-off electrical signals in a near field of the transmission conductor structure; a receiver for receiving signals tapped-off by the receiving antenna; a data sink for further processing the signals received by the receiver; wherein the first unit further comprises: an encoder provided between the data source and the transmitter for digitally encoding the serial data stream so that a power of the electrical signals generated by the transmitter in given spectral ranges is either increased or lowered, wherein an encoding function of the encoder is dynamically adjusted as a function of a location of a rotary movement of the two units relative to each other; and wherein the second unit further comprises: a decoder provided between the receiver and the data sink for restoring, from signals of data encoded by the encoder and received by the receiver, data in an original form as issued by the data source.