Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network
Patent
1992-07-14
1994-12-27
Kuntz, Curtis
Telephonic communications
Having light wave or ultrasonic link for speech or paging...
Including fiber optic link within telephone network
379 56, 379 59, 379 61, 379121, 455 8, 455 9, 455 17, 455 18, 370 7, 370 97, H04M 1100, H04M 1500, H04B 336, H04B 715
Patent
active
053772555
ABSTRACT:
An RF repeater for interfacing with a base station for exchanging transmit and receive signals in a time division duplex cordless telephone system comprises a multicarrier amplifier having an input and an output and a transfer switch connected to the amplifier output and the amplifier input and having first and second switch states. The switch means connects receive signals from the handset to the amplifier input and the amplifier output to the base station in the first switch state, and connects the base station to the amplifier input and transmit signals from the amplifier output to be broadcast to the handset in the second switch state. The operation of the switch is controlled so that the transmit and receive signals are alternately amplified by the amplifier. Thus, only a single amplifier is required.
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Cumming William
Kuntz Curtis
Long Brian M.
PCS Microcell International Inc.
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