Patent US4260667A successfully refreshed from Google Patents.
Patent US5438332A successfully refreshed from Google Patents.
US5438332A
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US
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Method of hardening transmissions, in particular between a control station and a transponder, and a device implementing the method
Assignee: Thales SA
•
Filing: 1994-06-28
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Granted: 1995-08-01
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Expires: 2014-06-28
Abstract
Abstract To harden transmissions, in both directions, between a master station (1) and a slave station (2), a table of communication parameter values is memorized in each station and the table values are then used in accordance with the master station's decision. Each message from one station to the other contains information to allow the receiving station to determine the parameter values to be selected in the table to eliminate values where there is a high risk of jamming.
Inventors
- 👤 Daniel Adam
- 👤 Andre Bech
- 👤 Alain Desmoucelles
- 👤 Denis Vallier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:03
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/59; H04B1/69; H04B1/713; H04K; H04K1/00; H04K1/003
Claims Analysis
Total Claims: 50
Claim 1
Independent Claim
152 words
A method for frequency hopping communication, comprising the steps of: transmitting, a frequency hopping first signal which includes pulses, from a first station to a second station; transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 2
Independent Claim
152 words
A method for frequency hopping communication, comprising the steps of: transmitting, a frequency hopping first signal which includes pulses, from a first station to a second station; transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 3
Dependent Claim
23 words
A method according to claim 1, wherein said at least one of the communication parameters which has been changed is the pulse width.
Claim 4
Dependent Claim
24 words
A method according to claim 1, wherein said at least one of the communication parameters which has been changed is the number of pulses.
Claim 5
Dependent Claim
25 words
A method according to claim 1, wherein said at least one of the communication parameters which has been changed is the timing of the pulses.
Claim 6
Dependent Claim
35 words
A method according to claim 4, wherein the changing of the timing of the pulses includes a changing of at least one of a repetition rate, a word length, and intervals between words and packets.
Claim 7
Dependent Claim
22 words
A method according to claim 1, wherein the second station causes said at least one of the communication parameters to be changed.
Claim 8
Dependent Claim
32 words
A method according to claim 1, wherein when a frequency is jammed for a predetermined period of time, said first station is inhibited from transmitting on the frequency which has been jammed.
Claim 9
Dependent Claim
42 words
A method according to claim 1, wherein after a predetermined period of time during which a communication quality is below a predetermined threshold, said first station and said second station use standby values for said at least one of the communication parameters.
Claim 10
Dependent Claim
24 words
A method according to claim 1, wherein the second station imposes time windows during which pulses subsequent to a first pulse must be received.
Claim 11
Dependent Claim
24 words
A method according to claim 1, wherein said at least one of the communication parameters is changed from one pulse to a next pulse.
Claim 12
Dependent Claim
27 words
An apparatus according to claim 10, wherein said at least one of the communication parameters of the pulses is changed from one pulse to a next pulse.
Claim 13
Dependent Claim
26 words
A method according to claim 1, wherein said at least one of the communication parameters is changed from one pulse packet to a next pulse packet.
Claim 14
Dependent Claim
45 words
A method according to claim 1, wherein the first station is a master control station which transmits at least one of an absolute value of and variations in characteristics of at least one of the pulses and frequency of the transmitted signals in coded form.
Claim 15
Dependent Claim
15 words
A method according to claim 13, wherein the coded form is a compressed coded form.
Claim 16
Dependent Claim
15 words
A method according to claim 13, wherein the coded form is generated using correlation data.
Claim 17
Dependent Claim
38 words
A method according to claim 1, wherein the second station is a vehicle for launching, said method further comprising the step of: storing values for said second table within said second table before said second station is launched.
Claim 18
Dependent Claim
41 words
A method according to claim 1, wherein the second station is a vehicle for launching, said method further comprising the step of: downloading values into said second table, during a flight of said second station, after said second station is launched.
Claim 19
Dependent Claim
35 words
A method according to claim 1, further comprising the steps of: reading said table in the first station in sequence by said first station; and reading said second table in sequence by said second station.
Claim 20
Dependent Claim
37 words
A method according to claim 1, further comprising the steps of: reading said table in said first station out of sequence by said first station; and reading said second table out of sequence by said second station.
Claim 21
Dependent Claim
17 words
A method according to claim 1, wherein values within said table in the first station are constant.
Claim 22
Dependent Claim
22 words
A method according to claim 1, wherein values within said table in the first station vary and are selected by a program.
Claim 23
Independent Claim
163 words
An apparatus for frequency hopping communication, comprising: a first transmitter means for transmitting a frequency hopping first signal which includes pulses, from a first station to a second station; a second transmitter means for transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; a receiver for receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed. PG,14
Claim 24
Independent Claim
163 words
An apparatus for frequency hopping communication, comprising: a first transmitter means for transmitting a frequency hopping first signal which includes pulses, from a first station to a second station; a second transmitter means for transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; a receiver for receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed. PG,14
Claim 25
Dependent Claim
25 words
An apparatus according to claim 22, wherein said second transmitter means changes said at least one of the communication parameters which is the pulse width.
Claim 26
Dependent Claim
26 words
An apparatus according to claim 22, wherein said second transmitter means changes said at least one of the communication parameters which is the number of pulses.
Claim 27
Dependent Claim
27 words
An apparatus according to claim 22, wherein said second transmitter means changes said at least one of the communication parameters which is the timing of the pulses.
Claim 28
Dependent Claim
36 words
An apparatus according to claim 25, wherein said second transmitter means which changes the timing of the pulses changes at least one of a repetition rate, a word length, and an interval between words and packets.
Claim 29
Dependent Claim
22 words
An apparatus according to claim 22, wherein the second station causes said at least one of the communication parameters to be changed.
Claim 30
Dependent Claim
48 words
An apparatus according to claim 22, wherein said first station comprises a means for inhibiting a transmission on a jammed frequency such that when said frequency is jammed for a predetermined period of time, said first station is inhibited from transmitting on said frequency which has been jammed.
Claim 31
Dependent Claim
54 words
An apparatus according to claim 22, wherein said first station and said second station contain erspective standby means for causing said first and second station to use standby values for said at least one of the communication parameters, after a predetermined period of time during which a communication quality is below a predetermined threshold.
Claim 32
Dependent Claim
24 words
An apparatus according to claim 22, wherein the second station imposes time windows during which pulses subsequent to a first pulse must be received.
Claim 33
Dependent Claim
29 words
An apparatus according to claim 22, wherein said at least one of the communication parameters of the pulses is changed from one pulse packet to a next pulse packet.
Claim 34
Dependent Claim
43 words
An apparatus according to claim 22, wherein the first station is a master control station which transmits at least one of an absolute value of and variations in characteristics of at least one of the pulses and frequency of the transmitted coded form.
Claim 35
Dependent Claim
15 words
An apparatus according to claim 32, wherein the coded form is a compressed coded form.
Claim 36
Dependent Claim
15 words
An apparatus according to claim 32, wherein the coded form is generated using correlation data.
Claim 37
Dependent Claim
36 words
An apparatus according to claim 22, wherein said first station comprises means for reading said table in the first station in sequence; and wherein said second station comprises means for reading said second table in sequence.
Claim 38
Dependent Claim
38 words
An apparatus according to claim 22, wherein said first station comprises means for reading said table in the first station out of sequence; and wherein said second station comprises means for reading said second table out of sequence.
Claim 39
Dependent Claim
17 words
An apparatus according to claim 22, wherein values within said table in the first station are constant.
Claim 40
Dependent Claim
22 words
An apparatus according to claim 22, wherein values within said table in the first station vary and are selected by a program.
Claim 41
Dependent Claim
38 words
An apparatus according to claim 22, wherein the second station is a vehicle for launching, and the second station comprises: means for storing values of said second table within said second table before said second station is launched.
Claim 42
Dependent Claim
41 words
An apparatus according to claim 22, wherein the second station is a vehicle for launching, and the second station comprises: means for downloading values into said second table, during a flight of said second station, after said second station is launched.
Claim 43
Independent Claim
152 words
A method for frequency hopping communication, comprising the steps of: transmitting, a frequency hopping first signal which includes pulses, from a first station to a second station; transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 44
Independent Claim
152 words
A method for frequency hopping communication, comprising the steps of: transmitting, a frequency hopping first signal which includes pulses, from a first station to a second station; transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 45
Independent Claim
162 words
An apparatus for frequency hopping communication, comprising: a first transmitter means for transmitting a frequency hopping first signal which includes pulses, from a first station to a second station; a second transmitter means for transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; a receiver for receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 46
Independent Claim
162 words
An apparatus for frequency hopping communication, comprising: a first transmitter means for transmitting a frequency hopping first signal which includes pulses, from a first station to a second station; a second transmitter means for transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to a jamming of said first signal; a receiver for receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 47
Independent Claim
152 words
A method for frequency hopping communication, comprising the steps of: transmitting, a frequency hopping first signal which includes pulses, from a first station to a second station; transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to an intrusion of said first signal; receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 48
Independent Claim
152 words
A method for frequency hopping communication, comprising the steps of: transmitting, a frequency hopping first signal which includes pulses, from a first station to a second station; transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to an intrusion of said first signal; receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 49
Independent Claim
162 words
An apparatus for frequency hopping communication, comprising: a first transmitter means for transmitting a frequency hopping first signal which includes pulses, from a first station to a second station; a second transmitter means for transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to an intrusion of said first signal; a receiver for receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
Claim 50
Independent Claim
162 words
An apparatus for frequency hopping communication, comprising: a first transmitter means for transmitting a frequency hopping first signal which includes pulses, from a first station to a second station; a second transmitter means for transmitting a frequency hopping second signal from the first station to the second station, at a predetermined period of time after the transmission of the first signal, the second signal having at least one of the following communication parameters including a number of pulses, a pulse width, and a timing of pulses, which is different from the first signal, wherein said at least one of the communication parameters is changed using a table in the first station, and a changing of the communication parameters is performed in response to an intrusion of said first signal; a receiver for receiving the second signal by the second station using a second table in the second station which indicates how said at least one of the communication parameters has been changed.
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