Telecommunications – Transmitter and receiver at separate stations – Plural transmitters or receivers
Reexamination Certificate
2011-06-28
2011-06-28
Ferguson, Keith T (Department: 2618)
Telecommunications
Transmitter and receiver at separate stations
Plural transmitters or receivers
C455S519000, C455S500000, C455S517000, C455S466000, C455S550100, C370S310000, C370S262000, C370S261000, C370S259000, C370S260000
Reexamination Certificate
active
07970424
ABSTRACT:
A method and apparatus for floor control in a multi-media dispatch network is disclosed. The method includes receiving a floor request message related to a first media type at a dispatch network controller from a first user and receiving a floor grant request message related to a second media type at the dispatch network controller from the first user. The apparatus includes a dispatch network controller where the dispatch network controller receives a floor request message related to a first media type from a first user and receives a floor grant request message related to a second media type from the first user.
REFERENCES:
patent: 2005/0124365 (2005-06-01), Balasuriya et al.
patent: 2007/0021133 (2007-01-01), Coulas
patent: 2008/0320083 (2008-12-01), Albertsson et al.
Pending Patent Application, titled “Method and Apparatus for Floor Control in Multi-Media Push-to-Talk Network”, Inventors Cai, et al., filed Feb. 25, 2008.
Cai Zheng
Manroa Arun
Ferguson Keith T
Nextel Communications Inc.
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