A SYSTEM FOR SECURE COMMUNICATIONS
First Claim
Patent Images
1. A communications system comprising:
- at least one wireless transmitter; and
at least one receiver; and
wherein;
the at least one transmitter may send encrypted signals on various frequencies at various times;
the at least one receiver may receive encrypted signals;
a schedule of encryption keys and frequencies for transmission is provided as needed to at the least one receiver; and
the schedule of encryption keys and frequencies changes from time to time.
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Accused Products
Abstract
A system having transmitters, receivers, transceivers, actuators, sensors, input/output rack, and/or a computer with application specific software and/or hardware, for secure communication and control. The system may use frequency hopping spread spectrum (FHSS) and encryption. Schedules for FHSS and encryption keys may be varied in variously elaborate ways. The system may utilize a distributed control system to manage the transmission and reception of signals, control operations, FHSS scheduling, changing of keys, and information.
30 Citations
20 Claims
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1. A communications system comprising:
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at least one wireless transmitter; and
at least one receiver; and
wherein;
the at least one transmitter may send encrypted signals on various frequencies at various times;
the at least one receiver may receive encrypted signals;
a schedule of encryption keys and frequencies for transmission is provided as needed to at the least one receiver; and
the schedule of encryption keys and frequencies changes from time to time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for secure wireless communication comprising:
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transmitting signals to a receiver;
transmitting the signals via a frequency-hopping spread spectrum;
providing a schedule of the frequency-hopping spectrum to the receiver;
encrypting the signals to the receiver; and
providing an encryption key to the receiver via a second frequency-hopping spread spectrum. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A system for secure wireless communication comprising:
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a receiver; and
a transmitter; and
wherein;
the transmitter may send encrypted signals via a frequency hopping spread spectrum of a first schedule;
the transmitter may send an encryption key signal via a frequency hopping spread spectrum of a second schedule; and
the receiver may receive and decrypt the signals. - View Dependent Claims (18, 19, 20)
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Specification