Abstract: A transceiver arrangement for a smart antenna system of a mobile communication base station is disclosed. A receiving apparatus comprises N array antennas, N AFEUs for down-converting each of signals which are received from the N array antennas into N different frequencies, respectively, N:1 power combiner for combining the converted N signals into one signal, a wideband transceiver for down-converting the combined signal into a base frequency band, a wide band analog-to-digital converter for converting the down-converted signal into a digital signal, N digital filters for dividing the digital signal into N different digital signals and L beam forming modules for receiving one by one the N digital signals divided by each of N digital dividing means and for forming adaptive beam, wherein L is the number of subscribers.

Abstract: The present invention provides an apparatus for lifting up and down of window glass for a vehicle and method thereof that is controlled by a switch called a shuttle switch to move the window glass automatically to a desired position according to the rotation of the shuttle switch without visually checking the movement of the window glass and without taking eyes away from the road by a user. The present invention includes a reversible motor for moving the window glass, a controller for moving and stopping the window glass to the desired position corresponding to the rotation of the shuttle switch, and a motor sensor providing feedback to the controller for stopping the movement of the window glass.

Abstract: An apparatus for driving a seat testing machine that accurately tests the durability of the seat element, which includes a twisting assembly for providing both rubbing and impact engagements with the seat element, one common power source to activate a first mechanism to reciprocate the seat element along a first axis, and activate a second mechanism to reciprocate the twisting assembly about a rotary axis; and vertical loading and lifting mechanisms to repeatedly engage and disengage the twisting assembly from the seat element under a gravitational loading while simulating the varying weight of the occupant.