Device for transmitting digital signals between mobile units with modification of the spectral characteristics
AssigneeSchleifring und Apparatebau GmbH
InventorsHarry Schilling, Nils Krumme, Georg Lohr
Life of this patent
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Abstract
A device for transmission of digital signals between two units movable relative to each other, particularly with non-contacting rotating data transmission devices, comprises an encoder on a transmitter side along a signal path for conforming a coding of the digital signals to transmission characteristic of a transmission path, so that a given spectral distribution of signals is attained. An optional decoder on a receiver side restores original signals, so that the coding remains concealed, but a substantially more reliable transmission is achieved.
Claims11
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.
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;
- and
- 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;
- and
- wherein at least one filter, assigned optionally to the transmitter or the receiver, is provided to effect matching to transmission characteristics of a data path coupled between the transmitter and the receiver, wherein the filter is dynamically adjustable, and wherein the dynamic adjustment is provided as a function of a location of a rotary movement of the two units relative to each other.
Method for electrically transmitting broadband digital signals between at least one first unit and at least one second unit disposed to be rotatable relative to the first unit in a rotating data transmission device, comprising the steps of:
- generating a serial data stream from a data source on the at least one first unit;
- generating electrical signals from the serial data stream with a transmitter on the at least one first unit;
- carrying the electrical signals generated by the transmitter in a transmission conductor structure on the at least one first unit;
- tapping-off electrical signals in a near field of the transmission conductor structure with a receiving antenna on the at least one second unit;
- receiving signals tapped-off by the receiving antenna with a receiver on the at least one second unit;
- further processing the signals received by the receiver in a data sink on the at least one second unit;
- the method comprising the further steps of:
- encoding the signals to be transmitted on the at least one first unit so that a spectral power density of the signals is either increased or decreased in given spectral ranges, wherein the encoding of signals is adjusted dynamically as a function of location of a rotary movement of the two units relative to each other;
- and
- decoding the signals received on the at least one second unit to restore data in an original form as issued by the data source.
Dependencies are inferred from the claim text.