Abstract: A transceiver may include a reception (Rx) radio frequency (RF) part configured to process a received signal, a transmission (Tx) RF part configured to process a transmitted signal, and a phase lock loop (PLL) configured to provide a reception frequency to the reception RF part and provide a transmission frequency to the transmission RF part. The PLL may be controlled according to whether the reception RF part or the transmission RF part is on. In addition, a transceiver may include quenching waveform generator (QWGs) to control quenching waveforms of the RF parts corresponding to a plurality of antennas. The quenching waveforms may be generated respectively by VCOs operating at a same frequency. The QWGs may control the VCOs such that the quenching waveforms do not overlap.

Abstract: Disclosed is a computer system having a computer and a monitor connected to the computer for displaying an image from the computer thereon. The monitor has an input unit for each user to set and select the display environment, a profile storing unit for storing therein the display environment information set by each user, and a monitor control unit for storing the display environment information set by each user through manipulation of the input unit in the profile storing unit and outputting the display environment information of each user to the computer. The computer has a storage unit for storing the display environment information by each user therein, and a computer control unit for storing the display environment information input by each user from the monitor in the storage unit.