Matches 1 - 6 out of 6
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5924019 Radio frequency switch including voltage multiplier  
A radio frequency switch includes a field-effect-transistor (FET) having a gate connected to a voltage multiplier. The control voltage for the switch is delivered to the voltage multiplier which...
5659885 Radio frequency switch including voltage multiplier  
A radio frequency switch includes a field-effect-transistor (FET) having a gate connected to a voltage multiplier. The control voltage for the switch is delivered to the voltage multiplier which...
5561848 Two way paging system with answer-back function  
After bit synchronization and frame synchronization are established in accordance with a transmission signal from a transmission office, reception RX is stopped until a reception timing assigned to...
5553317 Quadrature modulator for TDMA/TDD radio communication apparatus  
In a radio telephone apparatus of the TDMA/TDD system, signal transmission and reception are conducted by use of carriers having an identical frequency. This leads to a problem that the...
5261120 Method and apparatus for transmitting a signal with an offset which follows a received signal  
A transmitting and receiving apparatus suitable for use as a digital cellular type mobile station. The reference reception carrier frequency and the reference transmission carrier frequency are...
5123008 Single frequency time division duplex transceiver  
A time division duplex transceiver incorporating a dual conversion superheterodyne receiver, and in which the first receiver local oscillator doubles as the frequency source for the transmitter....
Matches 1 - 6 out of 6