Device and method for low interference signal transmission
AssigneeSchleifring und Apparatebau GmbH
InventorsHarry Schilling, Georg Lohr
Life of this patent
Estimating the term…
Abstract
The invention relates to a device and a method for transmitting digital signals between at least two units disposed to move relative to each other. By combining information signals with random signals, the spectral power density of a signal is reduced for the same transmission power.
Claims13
Device for transmitting digital signals from a first unit to a second unit, the first unit comprising:
- a data transmitter for emitting the digital signals;
- a pseudo random-generator or a random generator for generating pseudo random values or random values, respectively, and
- a combining unit for combining the signals emitted by the data transmitter with the pseudo random values or the random values;
- and the second unit comprising:
- a data receiver connected to the data transmitter by a transmission path, for receiving the digital signals;
- wherein
- a control unit is provided for controlling the combining unit in such manner that pseudo random data or random data are transmitted during intervals between periods for transmitting information data.
Method for transmitting digital signals between a plurality of units of which at least one first unit comprises a data transmitter and at least one second unit comprises a data receiver, and the at least one first unit is connected by at least one transmission path to the at least one second unit;
- wherein true or pseudo random data are inserted between information data, so that in a spectrum of a signal to be transmitted, gaps between spectral lines are substantially reduced, so that amplitudes of the spectral lines fall off, however without an entire bandwidth needed for transmission being substantially increased.
Method for transmitting digital signals between a first unit comprising a data transmitter, and a second unit comprising a data receiver, the data transmitter and the data receiver being joined by a transmission path, the method comprising the steps of:
- emitting digital information signals with the data transmitter;
- generating pseudo random values or random values with a pseudo random generator or a random generator;
- encoding the digital information signals by combining the signals with the generated pseudo random values or random values;
- and
- receiving the encoded digital signals with the data receiver;
- wherein the method includes the further step of:
- inserting true random data or pseudo random data in intervals between information data.
Dependencies are inferred from the claim text.