Receiver/transmitter circuit

Details Receiver/transmitter circuit Receiver/transmitter circuit

2007-04-10

2007-04-10

Anderson, Matthew D. (Department: 2618)

Telecommunications

Transmitter and receiver at same station

With transmitter-receiver switching or interaction prevention

C455S073000, C455S084000, C455S086000, C370S276000, C370S280000, C375S373000, C375S374000, C375S375000

Reexamination Certificate

active

10681326

ABSTRACT:
A receiver/transmitter circuit includes an antenna terminal, a transmitter circuit which outputs a transmission signal in response to a transmit control signal, a receiver circuit which receives a reception signal from the antenna terminal, and a waveform control circuit. The waveform control circuit outputs a switching signal having a gradual logic transition in response to the transmit control signal. The receiver/transmitter circuit further includes a first switch connected between the antenna terminal and the transmitter circuit, and a second switch connected between the antenna terminal and the receiver circuit. The first switch transfers the transmission signal to the antenna terminal in response to the switching signal.

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