US5214788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and device for information transmission between radioelectric transceivers of the same network operating in frequency hopping
Assignee: Thales SA
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Filing: 1990-05-04
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Granted: 1993-05-25
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Expires: 2010-05-04
Abstract
Abstract The process consists in: using at least one transceiver station to search for a set of usable frequencies, transmitting the set of usable frequencies to the other transceivers in the network and performing the communication transfers in frequency hopping in the set of usable frequencies communicated to all the transceivers in the network.
Inventors
- 👤 Jean-Paul Delaperriere
- 👤 Alain Eberland
- 👤 Yves Singlas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:22
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/69; H04B1/713; H04B1/715; H04B2001/7154
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
162 words
A process of transmitting information between radio transceivers in the same network operating in frequency hopping, comprising the steps of: using at least one transceiver station to search for a set of usable frequencies from channels it receives; determining a first minimum comparison threshold value corresponding to the channel with the weakest reception level; determining a second comparison threshold value by adding a predetermined incremental value to the first minimum comparison threshold value; selecting a set of usable frequencies from the other channels received, the set of usable frequencies being channels with reception levels between the first and the second minimum comparison threshold values; storing a limited number of the set of usable frequencies, the limited number corresponding to frequencies within the set of usable frequencies with the lowest reception levels; transmitting the set of usable frequencies to the other transceivers in the network; and transmitting, during frequency hopping, the set of usable frequencies to all of the transceivers in the network.
Claim 2
Dependent Claim
162 words
A process of transmitting information between radio transceivers in the same network operating in frequency hopping, comprising the steps of: using at least one transceiver station to search for a set of usable frequencies from channels it receives; determining a first minimum comparison threshold value corresponding to the channel with the weakest reception level; determining a second comparison threshold value by adding a predetermined incremental value to the first minimum comparison threshold value; selecting a set of usable frequencies from the other channels received, the set of usable frequencies being channels with reception levels between the first and the second minimum comparison threshold values; storing a limited number of the set of usable frequencies, the limited number corresponding to frequencies within the set of usable frequencies with the lowest reception levels; transmitting the set of usable frequencies to the other transceivers in the network; and transmitting, during frequency hopping, the set of usable frequencies to all of the transceivers in the network.
Claim 3
Dependent Claim
54 words
The process according to claim 1 wherein, when the transceivers in the network are geographically distant from each other, the set of usable frequencies are determined by all or some of the transceivers in the network and a concatenation of all of the usable frequencies is performed to form the set of usable frequencies.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-24 | 1996-11-23 | 1997-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-24 | 2000-11-23 | 2001-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-24 | 2004-11-23 | 2005-05-25 | $7700.00 | Window Closed / Lapsed |