149results about How to "Guaranteed smooth reception" patented technology

The pressure sensor device has a laminated diaphragm (12) in which a strain resistance gauge is formed in a surface and a stopper member (13) including a concave portion forming a curved surface parallel to a surface formed by displacement of the diaphragm, the concave portion being disposed to face the diaphragm. Specifically, the concave portion of the stopper member is formed into a curved surface in which depth y at a distance x from the center of the diaphragm is expressed by a quartic function [y=pr4(1−x2 / r2)2 / 64D] in relation to the operating pressure for protection against maximum pressure p when the diaphragm has a radius of r, a thickness of t, and a flexural rigidity of D.

Disclosed are a codebook-based signal transmission / reception method in a multi-antenna wireless communication system, and a device for same. Specifically, provided is a method by which a terminal transmits / receives a signal on the basis of a codebook, in a 2-dimensional multi-antenna wireless communication system, comprising the steps of: receiving a channel state information reference signal (CSI-RS) from a base station, via a multi-antenna port; and reporting channel state information to the base station. The channel state information comprises a precoding matrix indicator (PMI) for indicating a precoding matrix. The PMI comprises a first PMI for selecting a precoding matrix set from a codebook, and a second PMI for selecting one precoding matrix from the precoding matrix set. The pair of the first dimensional index and second dimensional index of the precoding matrix belonging to the precoding matrix set is (x, y), (x+2, y), (x, y+1), (x+1, y+1), x and y being whole numbers that are not negative.

A ball screw device includes a screw shaft threaded with a ball nut which has two channels and an opening, a guide member is engaged into the opening of the ball nut and has two curved pathways communicating with the channels to form two separated endless ball rolling passages in the ball nut, and two groups of bearing members are engaged in the two separated endless ball rolling passages for facilitating a movement of the ball nut relative to the screw shaft. The guide member includes two bars for enclosing the curved pathways of the guide member, and the bars each have a curved recess for forming the curved pathways of the guide member and for allowing the guide member to be easily manufactured.

The invention discloses a processing method and a processing system for uplink data retransmission. In the scheme of the invention, a plurality of eNBs collaborate to perform CoMP uplink transmission and UE performs the uplink data retransmission according to the instruction of the eNB when the uplink data retransmission is needed; when receiving uplink scheduling information related to the retransmission transmitted by the serving eNB, the non-serving eNB receives the retransmission uplink data of the UE and transmits the data to the serving eNB; and when not receiving the uplink scheduling information related to the retransmission transmitted by the serving eNB, the non-serving eNB does not perform the operation related to the uplink data retransmission. The method has the advantages of making the behaviors of the serving eNB and the non-serving eNB clear, smoothly receiving the retransmission uplink data, solving the problem of the uplink data retransmission during the CoMP uplink transmission of the plurality of collaborative eNBs well, and adapting to the various special uplink data transmission scenes, along with no need of alteration of the uplink data transmission behavior on the UE side, easy implementation, and less required alteration of the LTE system.

A wireless communication device including a sending data amount determination unit, a data sending unit, a monitor function unit, a transmission control data producing unit, a transmission control data sending unit, a data reception unit, and an application I / F (interface) unit. The transmission control data sending unit includes a transmission control data separation unit, a transmission control data replication unit, and a data mapping unit.

A horizontal articulated robot includes a base, a first arm provided rotatably around a first rotation axis on the base, a second arm provided rotatably around a second rotation axis on the first arm, the second rotation axis being parallel to the first rotation axis, and a main shaft provided in the second arm to be extended in a direction parallel to the second rotation axis. A distance between the second rotation axis and the main shaft is shorter than a length of a straight line connecting the first and the second rotation axes. Additionally, the first arm has a recessed portion formed so as to include a position on a rotation path where a rotation radius around the second rotation axis is equivalent to the distance between the second rotation axis and the main shaft.

An image forming apparatus having an improved power-transmission assembly to drive a developing cartridge mounted in a main body of the apparatus. The apparatus includes a main body, at least one driving coupling unit rotatably located in a side region of the main body, at least one driven coupling unit connected to a rotator inside a developing cartridge, and a coupling holder in which the driving and driven coupling units are connected to each other to enable a power-transmission from the driving coupling unit to the driven coupling unit. The driving coupling unit includes a first spherical portion to come into contact with one side of an inner surface of the coupling holder when received in the coupling holder. The driven coupling unit includes a second spherical portion to come into contact with the other side of the inner surface of the coupling holder when received in the coupling holder.