Variometer |
| The invention has, therefore, more particularly for its object a variometer whose general principal ... |
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Apparatus for controlling the temperature of rods in a continuous rolling mill |
| Accordingly, it is an object of the present invention to provide an apparatus for controlling the ... |
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Electronic postage meter with a ring counter |
| What is claimed is: 1. In an electronic postage meter having at least one volatile register for ... |
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Mode detection circuit for a dual purpose analog input |
| Referring to the drawing, a mode detection circuit in accordance with the present invention is ... |
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Circuit for maintaining the state of an output despite changes in the state of input |
| It is an object of the present invention to provide a low voltage control circuit for maintaining ... |
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Helicopter, high rotor load speed enhancement |
| We claim: 1. A control for a helicopter engine having a free turbine for normally driving the ... |
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Mobile receiver |
| It is an object of the present invention to provide a mobile receiver which allows easy ... |
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Detent remover for a postage meter |
| It has been found that the detent mechanism of a postage meter may be prevented from premature wear ... |
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Anti-energy diversion system for electric utility meters |
| It is, therefore, the primary object of the present invention to provide an anti-theft system for ... |
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Carriage for sorting-machines in particular, with independently actioned tiltable plate |
| I claim: 1. In a carriage for a sorting machine, the sorting machine having at least one track, a ... |
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Wireless network security
| Details |
Inventors: Day, Christopher W.; Patterson, Joseph M.;
Assignee: Steelcloud, Inc. (Herndon, VA)
Primary Examiner: Ramos-Feliciano; Eliseo
Assistant Examiner:
Attorney, Agent or Firm: Greenberg, Esq.; Steven M., Christopher & Weisberg, P.A.
The present invention is secure wireless network. The secure wireless network can include multiple receiver nodes coupled to corresponding high-precision clocks. Each of the receiver nodes can be configured to receive wireless frames transmitted both within and outside a secured geographic area covered by the secure wireless network. A master synchronization high-precision clock can be coupled to the corresponding high-precision clocks. Additionally, a position location system can be coupled to the receiver nodes. Specifically, the position location system can be programmed to compute estimated positions for individual ones of wireless nodes transmitting the wireless frames. Finally, access management logic can be coupled to the position location system. More particularly, the access management logic can be configured to manage access to the wireless network by the individual ones of the wireless nodes based upon the computed estimated positions. |
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DETAILED DESCRIPTION The present invention is secure wireless network. The secure wireless network can include multiple receiver nodes coupled to corresponding high-precision clocks. Each of the receiver nodes can be configured to receive wireless frames transmitted from both within and outside a secured geographic area covered by the secure wireless network. A master synchronization high-precision clock can be coupled to the corresponding high-precision clocks. Notably, the high-precision clocks and the master synchronization high-precision clock can include nano-second resolution. Importantly, a position location system can be coupled to the receiver nodes. Specifically, the position location system can be programmed to compute estimated positions for individual ones of wireless nodes transmitting the wireless frames. Finally, access management logic can be coupled to the position location system. More particularly, the access management logic can be configured to manage access to the wireless network by the individual ones of the wireless nodes based upon the computed estimated positions. In one aspect of the present invention, the position location system can include at least one two-dimensional position location system. In particular, the two-dimensional position location system can include one of a hyperbolic position location system or an elliptical position location system. In another aspect of the present invention, the position location system can include at least one three-dimensional position location system. In that case, the three-dimensional position location system can include one of a hyperboloidic position location system and an ellipsoid position location system. In a preferred aspect of the present invention, the access management logic can include a mapping of the secured geographic area. To that end, one of an iconic and a textual indication of the computed estimated positions of the wireless nodes transmitting the wireless frames to the receiver nodes can be included about the mapping
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