Multiplex communications – Communication over free space – Combining or distributing information via time channels
Reexamination Certificate
2011-06-28
2011-06-28
Desir, Pierre-Louis (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via time channels
C455S519000, C455S404100, C455S410000, C340S007460, C340S539100, C340S442000, C340S445000, C340S441000, C370S390000, C370S310000, C709S206000, C709S207000
Reexamination Certificate
active
07969959
ABSTRACT:
A system and method are provided for reliable, wireless group alerting in a system having a database, switch, wireless network, and a plurality of intelligent mobile receivers, and preferably employing a modified two-way paging based on ReFLEX™ protocol information service (IS) messages and a novel ALOHA command for multicast acknowledgement from mobile receivers. An encrypted message is broadcast to a group address and received by a selected number of the mobile receivers. The network replies to the sender with detailed information about the individual members in the alert group. Each of the mobile receivers in the group then acknowledges the common message back to the system, decrypts the message, displays it to the user, and allows the user to respond. The system employs centralized management to simplify the roles of the mobile users and administrators, minimizing configuration and operational human errors that would otherwise result in confusion or lost messages.
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Claise Brian
Dabbs, III James M.
Critical Response Systems, Inc.
Desir Pierre-Louis
Roylance Abrams Berdo & Goodman LLP
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