Patent ID: 11882454
Assignee: LAMBDA:4 ENTWICKLUNGEN GMBH
Field: Digital communication (Electrical engineering)
Classification: CPC B  H  G | IPC H

Claim 0:
1. A use in a radio authorization system comprising one first object and one second object:
wherein a plurality of symbols or chips encoded in at least one first analog data signal are transmitted at a first symbol or chip rate from the first object to the second object or from the second object to the first object by means of the radio authorization system;
wherein the radio authorization system is designed to bring about an approval by means of at least one enabling signal from the second object to the first object;
wherein a metric of a spectral distribution of an input signal received at the first object is compared with at least one predetermined span;
wherein the predetermined span is or will be determined by the radio authorization system solely on a basis of data predetermined in the radio authorization system or on signals of the radio authorization system; and
a. the input signal received is considered to be an attack or a signal with which the radio authorization system is unfamiliar or approval is denied if the metric of the spectral distribution is outside the at least one predetermined span; or
b. is considered to be a signal of the radio authorization system or approval is brought about if the metric of the spectral distribution is within the at least one predetermined span;
wherein the second object is designed to emit the at least one enabling signal, wherein the metric of the spectral distribution of the at least one enabling signal is within the at least one predetermined span;
wherein the at least one enabling signal is or will be determined by means of the radio authorization system solely on the basis of data predetermined in the radio authorization system or on the basis of signals of the radio authorization system;
wherein the at least one enabling signal is part of the at least one first analog data signal and information is encoded in the at least one enabling signal in the plurality of symbols or chips.