Telecommunications – Transmitter and receiver at same station – With a common signal processing stage
Reexamination Certificate
2007-04-23
2011-11-29
Huang, Wen (Department: 2618)
Telecommunications
Transmitter and receiver at same station
With a common signal processing stage
C455S079000, C455S080000, C455S081000, C455S082000, C455S083000
Reexamination Certificate
active
08068791
ABSTRACT:
A Time Division Duplex (TDD) switch of a TDD wireless communication system is provided. By its unique arrangement, the TDD switch protects a receiver of the wireless system. The TDD switch includes an isolator connected to an output port of a transmitter, a first transmission line stub, connected between the isolator and a circulator, for transmitting a transmission signal received from the isolator when in a transmission mode, and for isolating a transmission path when in a reception mode, a first transmission line connected to the circulator, for isolating a reception path when in the transmission mode, and for supplying to a receiver a reception signal provided from an antenna connected to the circulator when in the reception mode, and a second transmission line stub connected between the first transmission line and an input port of the receiver in a stub form, for controlling the first transmission line to isolate the reception path when in the transmission mode, and for supplying the reception signal to the receiver when in the reception mode.
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Huang Wen
Jefferson IP Law, LLP
Samsung Electronics Co,. Ltd
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