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公开(公告)号：US11193729B2
公开(公告)日：2021-12-07
申请号：US16716538
申请日：2019-12-17
申请人： Bo Chen
发明人： Bo Chen
摘要： A toy water gun for water streaming and spraying comprising a piston type water gun, a nozzle, an adjustment sleeve and a position adjustment mechanism. The water gun comprises a cylinder, a piston fitted in a cavity of the cylinder, a pump rod connected to the piston, a handle disposed on the pump rod, and a water duct mounted on and communicating with the cylinder. The nozzle is mounted on the water duct, rear and front ends of the nozzle are disposed with a water inlet and a water outlet respectively, and the water inlet communicates with the water duct. The adjustment sleeve is sleeved on the nozzle, an inner side wall of the adjustment sleeve makes sealing contact with an outer side wall of the nozzle, the adjustment sleeve is disposed with a sealing plate having a water jet hole located right in front of the water outlet.
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公开(公告)号：US11177862B2
公开(公告)日：2021-11-16
申请号：US16088285
申请日：2017-05-10
申请人： QUALCOMM Incorporated , Chao Wei , Yu Zhang , Bo Chen , Jilei Hou
IPC分类号： H04W4/00 , H04B7/0452 , H04B7/0417 , H04B7/0456 , H04B7/06 , H04L5/00
摘要： A hybrid class B channel state information (CSI) reference signal (CSI-RS) scheme is discussed which configures one cell-common beamformed CSI-RS resource for beam tracking and another UE-specific beamformed CSI-RS resource for CSI feedback. The cell-common beamformed CSI-RS resource may be transmitted at a longer periodicity and shared by user equipments (UEs) in the cell. The beamforming may be cycled over a set of predefined weights transparent to UE. The UE-specific beamformed CSI-RS may be transmitted at a shorter periodicity and can be activated dynamically to allow resource sharing among multiple UEs. The UEs will report a CSI for the cell-common beamformed CSI-RS resource which provides a quality indicator for the associated cell-common beam and is utilized by the base station to determine the precoding weight for the UE-specific beamformed CSI-RS resource. Both resources can be configured with different parameter sets, such as number of ports, codebook type, and CSI reporting parameters.
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