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Device for low-interfernce signal transmission

  • US 7,295,594 B1
  • Filed: 12/31/1998
  • Issued: 11/13/2007
  • Est. Priority Date: 12/31/1997
  • Status: Expired due to Term
First Claim
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1. System for low-interference transmission of a signal, comprising:

  • a transmitter for generating an output signal to be transmitted via a transmission circuit, the signal having substantially a line spectrum;

    a modulator unit associated with the transmitter for modulating the output signal to be transmitted, or a carrier signal of transmitting means in the transmitter, or the output signal at any site in the transmission circuit, independently of a modulation technique selected for the purpose of signal transmission;

    a receiver, spatially separated from the transmitter, for receiving a modulated transmitted signal via the transmission circuit; and

    wherein the modulator unit modulates the signal so that spectral lines of the output signal are broadened to fill gaps between individual spectral lines, and a spectral power density of the output signal is reduced without a bandwidth of the output signal being substantially changed.

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