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US 5,454,037 AGranted
Portable secure-telephone communications module
AssigneeGrayline International Limited
InventorAngelo M. Pacella
Life of this patent
Estimating the term…
Abstract
A portable secure-telephone communications module including a collapsible enclosure for holding a person desiring to perform secure remote telephone communications, a secure telephone remote communication device in the enclosure, and RF shielding for the enclosure to inhibit RF leakage for preventing eavesdropping from outside the enclosure.
Claims39
A portable secure-telephone communications module, comprising:
- a collapsible enclosure for holding a person desiring to perform secure remote telephone communications;
- a secure remote telephone communication device in said enclosure;
- and
- means for RF shielding said enclosure to inhibit RF leakage for preventing eavesdropping from outside the enclosure.
1 more element
A portable secure telephone communications module, comprising:
- a collapsible enclosure including a collapsing pantograph-type frame covered with an RF shielded flexible cover for collapsing with said frame into at least one or both rigid base and top members;
- means for ventilating said enclosure, including RF shielded ventilation ports;
- means for projecting wide-band noise from said enclosure to mask voice audio leakage from said enclosure;
- means for vibrating said flexible cover, and rigid top/bottom cabinet sections to inhibit external monitoring of said cover and cabinet sections;
- and
- a secure remote telephone communication device in said enclosure for providing for secure communications from said enclosure.
3 more elements
A portable secure-telephone communications module, comprising:
- a collapsible enclosure for holding a person desiring to perform secure remote telephone communications, said collapsible enclosure including a collapsing frame and a flexible cover for collapsing with said frame;
- a secure remote telephone communication device in said enclosure;
- means for RF shielding said enclosure to inhibit RF leakage for preventing eavesdropping from outside the enclosure including a metallic substance in said flexible cover;
- and
- metallic zipper means electrically communicating with said metallic substance for providing an RF shielded opening in said flexible cover.
2 more elements
Dependencies are inferred from the claim text.