Methods and apparatus for masking and securing communications transmissions
First Claim
1. A method comprising:
- identifying a value of a common instant in time in first and second communication devices;
generating identical unique communications keys locally within each of the first and second communication devices based on the value of the common instant in time, wherein no communications keys are exchanged or transmitted between the first and second communication devices;
originating a same random stochastic sequence of variations within each of the first and second communication devices using the communications keys, wherein the communications keys define a time instant at which the sequence of variations originates, the sequence of variations being unique to the communications keys; and
encoding and decoding communication signals conveyed between the first and second communication devices using the sequence of variations to independently vary over time waveform parameters of the communication signals.
0 Assignments
0 Petitions
Accused Products
Abstract
A secure information transmission system includes one or more transmitters and one or more receivers. The transmission waveform employed includes highly randomized, independent stochastic processes, and is secured as a separate entity from the information it carries. The signal, using novel modulation methodology reducing impulse responses, has a paucity of spectral information and may be detected, acquired and demodulated only by communicants generating the necessary receiving algorithm coefficients. The physical area of signal reception is restricted to that of each intended communicant, reception areas following movements of mobile communicants. A unique instant in time is used as basis for communications keys to the securing algorithms dynamically generated on a one-time basis and never exchanged or stored by communicants. Technology is applicable to both fixed and mobile communications and may be applied to communications systems using wireless, fiber-optic, copper, acoustic and any other man-made or naturally occurring transmission media.
-
Citations
29 Claims
-
1. A method comprising:
-
identifying a value of a common instant in time in first and second communication devices; generating identical unique communications keys locally within each of the first and second communication devices based on the value of the common instant in time, wherein no communications keys are exchanged or transmitted between the first and second communication devices; originating a same random stochastic sequence of variations within each of the first and second communication devices using the communications keys, wherein the communications keys define a time instant at which the sequence of variations originates, the sequence of variations being unique to the communications keys; and encoding and decoding communication signals conveyed between the first and second communication devices using the sequence of variations to independently vary over time waveform parameters of the communication signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 25, 26, 27, 28, 29)
-
-
20. A communication device comprising:
a controller configured to; establish a common instant in time in conjunction with a second communication device; locally generate a communications key for coding and decoding signals based on the value of the common instant in time, the communications key being identical to a communication key generated by the second communication device, wherein no communications keys are exchanged or transmitted between the communication device and the second communication device; and originate a random stochastic sequence of variations using the communications key, wherein the communications key defines a time instant at which the sequence of variations originates, the sequence of variations being unique to the communications key; a transmitter configured to encode and transmit signals using the sequence of variations to independently vary over time waveform parameters of the signals; and a receiver configured to receive and decode signals using the sequence of variations to independently vary over time waveform parameters of the signals. - View Dependent Claims (21, 22, 23)
-
24. A non-transitory controller-readable medium encoded with instructions that, when executed by a controller, cause the controller to:
-
identify a value of a common time instant in time in first and second communication devices; generate identical unique communications keys locally within each of the first and second communication devices based on the value of the common time instant, wherein no communications keys are exchanged or transmitted between the first and second communication devices; originate a same random stochastic sequence of variations within each of the first and second communication devices using the communications keys, wherein the communications keys define a time instant at which the sequence of variations originates, the sequence of variations being unique to the communications keys; and encode and decode communication signals conveyed between the first and second communication devices using the sequence of variations to independently vary over time waveform parameters of the communication signals.
-
Specification