Multiplex communications – Special services – Conferencing
Patent
1997-03-10
1999-07-20
Pham, Chi H.
Multiplex communications
Special services
Conferencing
370342, 375207, 455 531, H04B 7216
Patent
active
059264659
ABSTRACT:
A conference calling spread-spectrum communications system and method using a plurality of spread-spectrum units, any one of which may serve as the base station and where the base station may be changed from one spread-spectrum unit to another upon command. Each spread-spectrum unit includes a base subunit, a remote subunit, and a command subunit. An operator may initiate from the command subunit of a particular spread-spectrum unit, a command signal to activate the base subunit of the particular spread-spectrum unit. Upon initiating the command signal, the particular spread-spectrum unit is activated as the base station and the command signal is broadcast to the remaining plurality of spread-spectrum units. At a respective remote subunit of each of the remaining plurality of spread-spectrum units, the command signal is received and, in response to receiving the command signal, the respective remote subunit in each of the remaining plurality of spread-spectrum units is activated to operate the remaining plurality of spread-spectrums units as remote units.
REFERENCES:
patent: 3731198 (1973-05-01), Blasbalg
patent: 4222115 (1980-09-01), Cooper et al.
patent: 4279018 (1981-07-01), Carson
patent: 4519069 (1985-05-01), Pudsey
patent: 4765753 (1988-08-01), Schmidt
patent: 4799252 (1989-01-01), Eizenhoffer et al.
patent: 4901307 (1990-02-01), Gilhousen et al.
patent: 4914651 (1990-04-01), Lusignan
patent: 4979170 (1990-12-01), Gilhousen et al.
patent: 5040238 (1991-08-01), Comroe et al.
patent: 5056109 (1991-10-01), Gilhousen et al.
patent: 5073900 (1991-12-01), Mallinckrodt
patent: 5101501 (1992-03-01), Gilhousen et al.
patent: 5109390 (1992-04-01), Gilhousen et al.
patent: 5166951 (1992-11-01), Schilling
patent: 5179572 (1993-01-01), Schilling
patent: 5218618 (1993-06-01), Sagey
patent: 5224094 (1993-06-01), Maher
patent: 5257283 (1993-10-01), Gilhousen et al.
patent: 5263045 (1993-11-01), Schilling
patent: 5265119 (1993-11-01), Gilhousen et al.
patent: 5610906 (1997-03-01), Schilling
InterDigital Technology Corporation
Luther William
Pham Chi H.
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