Abstract: An algorithm for a sparse attention operation is provided, and the algorithm includes following steps. An attention probability matrix is calculated based on a query matrix and a key matrix. A pruning ratio is calculated based on the attention probability matrix. The attention probability matrix is pruned based on the pruning ratio to obtain a pruned attention probability matrix. A value matrix is pruned based on the pruning ratio to obtain a pruned value matrix. The pruned attention probability matrix and the pruned value matrix are multiplied to obtain an attention matrix.

Abstract: Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit.

Abstract: A cap structure includes a capping body, for covering a container mouth of a container. The capping body includes a base layer, a plurality of protruding members disposed on the base layer, and a sidewall joined to a periphery of the base layer. A liner layer having coupling structures is locked with the protruding members. A space is formed between the base layer and the liner layer.

Abstract: Provided is a switched beam-forming apparatus which includes a beam-forming unit forming a plurality of beams using an array antenna, a beam selection adjusting unit measuring Quality of Service (QoS) values of each of a plurality of signals received through the plurality of beams, a beam selecting unit selecting at least two beams with high QoS from among the plurality of beams according to the results of the QoS measuring, and a beam combining unit combining the at least two beams selected by the beam selecting unit.

Abstract: Provided is a method of compensating for energy loss and eliminating inter-symbol interference (ISI) and inter-chip interference (ISI) in wireless signals, and a rake receiver for wireless LANs adopting the same. The rake receiver compensates for energy loss of a CCK signal transmitted in a multi-path wireless channel environment and eliminates ISI and ICI from the received CCK signal because a DFE structure per chip used for calculating ICI components, is connected in parallel with a DFE structure per symbol, thus eliminating ISI and ICI components.

Abstract: Provided is a method of compensating for energy loss and eliminating inter-symbol interference (ISI) and inter-chip interference (ISI) in wireless signals, and a rake receiver for wireless LANs adopting the same. The rake receiver compensates for energy loss of a CCK signal transmitted in a multi-path wireless channel environment and eliminates ISI and ICI from the received CCK signal because a DFE structure per chip used for calculating ICI components, is connected in parallel with a DFE structure per symbol, thus eliminating ISI and ICI components.

Abstract: A zero insertion force socket comprises a base and a cover movably mounted on the base. The base has a body portion from a front edge of which a head extends and two cutouts defined beside the head. A hole is defined in the head and in communicating with the two cutouts via a space defined below the bottom of the head. The cover has two sockets extending downward therefrom and movably received in the cutouts. A locking strip has two ends firmly retained in the sockets and an intermediate portion positioned in the space below the bottom of the head. A spring member is formed in the intermediate portion of the locking strip and movably received in the hole of the head of the base. A recess is defined at a bottom of the base for receiving the spring member when the spring member is deformed and moved together with the cover.

Abstract: A zero insertion force (ZIF) socket comprises a dielectric base defining a number of contact receiving passageways for receiving a number of contacts therein and forming a pair of platforms outwardly extending from opposite lateral edges thereof, a slidable cover defining a number of pin receiving passageways for receiving corresponding pins of an IC package therein, and a resilient retention member received in one of the platforms of the base for locking the cover with the base in position thereby ensuring excellent electrical connection between the IC package and the ZIF socket.