Multiplex communications – Special services – Conferencing
Reexamination Certificate
2006-01-03
2006-01-03
Pezzlo, John (Department: 2662)
Multiplex communications
Special services
Conferencing
C379S202010
Reexamination Certificate
active
06982961
ABSTRACT:
A method of providing push-to-talk and push-to-conference functionality in a CDMA system. Participants, in one embodiment, may be divided into active and inactive participants with active participants assigned a private uplink/downlink channel pair by the communication system. Inactive participants may be assigned a public downlink channel. In one embodiment, silent active participants of a conference or talk session are timed out and the private uplink/downlink channel pair previously assigned to such individuals are released for use elsewhere in the network or by other members of the conference. In a push-to-talk embodiment one private uplink/downlink channel pair may at any given time be passed between the presently active members of the group.
REFERENCES:
patent: 4873711 (1989-10-01), Roberts et al.
patent: 4979231 (1990-12-01), Johnson et al.
patent: 5491835 (1996-02-01), Sasuta et al.
patent: 5594948 (1997-01-01), Talarmo et al.
patent: 5914958 (1999-06-01), Chinitz et al.
patent: 6005848 (1999-12-01), Grube et al.
patent: 6115388 (2000-09-01), Chinitz et al.
patent: 6178166 (2001-01-01), Wilson et al.
patent: 6181685 (2001-01-01), Chinitz et al.
patent: 6188767 (2001-02-01), Needham et al.
patent: 6741856 (2004-05-01), McKenna et al.
patent: WO 00/69189 (2000-11-01), None
patent: WO0069189 (2000-11-01), None
Refai Wail M.
Sourour Essam
Witter Robert C.
Coats & Bennett P.L.L.C.
Pezzlo John
Telefonaktiebolaget LM Ericsson (publ)
LandOfFree
Push-to-talk and push-to-conference in a CDMA wireless... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Push-to-talk and push-to-conference in a CDMA wireless..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Push-to-talk and push-to-conference in a CDMA wireless... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3573015