| 摘要 |
The invention relates to a system for the blocking of transceptions of a wireless communication device situated within an area or space designated, for purposes of safety or security, for protection from selectable electromagnetic frequencies. The system, more particularly, includes elements for detecting and identifying the selected frequencies transmitted from the wireless device; a subsystem for blocking the frequencies which are received by the device; elements for electronic communication between the detecting elements and the blocking elements; and an actuator for the blocking elements. The system must be situated within sufficient physical relationship to the wireless communication device to permit reception of frequencies generated by it and the transmission, without use of unacceptable power levels, of blocking noise. |
