Extended cordless telephone system

Details Extended cordless telephone system Extended cordless telephone system

1990-06-25

1992-05-19

Dwyer, James L.

Telephonic communications

Having light wave or ultrasonic link for speech or paging...

Including fiber optic link within telephone network

379 61, 455103, 455 551, H04M 1100

Patent

active

051154633

ABSTRACT:
An extended cordless telephone system for communicating information signals from a plurality of telephone lines through a telephone exchange, including a central station and a plurality of remote units. The plurality of remote units may be radio telephone handsets, data sets, and the like. The central station includes a plurality of transceivers, a power combiner, a duplexer, a power divider, and a plurality of radiax cables. The plurality of transceivers transmits and receives the information signals as ACSB signals. Alternatively, the plurality of transceivers may transmit and receive the information signals as spread spectrum signals, using frequency hopping and FSK modulation. The power combiners include a plurality of combiner striplines for impedence matching the plurality of transceivers to an output of the power combiner.

REFERENCES:
patent: 4476574 (1984-10-01), Struven
patent: 4639914 (1987-01-01), Winters
patent: 4672658 (1987-06-01), Kavehrad et al.
patent: 4697281 (1987-09-01), O'Sullivan
patent: 4731812 (1988-03-01), Akerberg
patent: 4741019 (1988-04-01), Takahashi
patent: 4771448 (1988-09-01), Koohgoli et al.
patent: 4852148 (1989-07-01), Shibata et al.
patent: 4866732 (1989-09-01), Carey et al.
patent: 4866753 (1989-09-01), Fric
patent: 4879740 (1989-11-01), Nagashima et al.
Publication: Communication U.S.A., `The Transmitter Combiner`, by J. R. Hall, pp. 30, 31 and 34, Mar. 1970.

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