METHODS AND SYSTEMS FOR SECURING COMMUNICATION WITHIN A BOUNDARY
A message signal which is to be securely communicated is encoded, using a preselected code, to generate an encoded signal. A radio frequency signal representative of the encoded signal is transmitted, wherein the radio frequency signal may propagate beyond the predetermined boundary. A code signal r...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A message signal which is to be securely communicated is encoded, using a preselected code, to generate an encoded signal. A radio frequency signal representative of the encoded signal is transmitted, wherein the radio frequency signal may propagate beyond the predetermined boundary. A code signal representative of the preselected code is also transmitted, wherein propagation of the code signal is confined within the predetermined boundary. At a corresponding receiver within the predetermined boundary, the code signal and the radio frequency signal are received. The encoded signal represented by the radio frequency signal is decoded based upon the preselected code in order to recover the message signal. |
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