Force feedback control apparatus and control method for same

    公开(公告)号:US12105883B2

    公开(公告)日:2024-10-01

    申请号:US18320096

    申请日:2023-05-18

    发明人: Keehoon Kim

    IPC分类号: G06F3/01

    CPC分类号: G06F3/016

    摘要: The present disclosure relates to a cable-based force feedback control apparatus capable of automatically determining the unspecified number and positions of cable haptic apparatus and performing force feedback control based on the determination result and a control method for the apparatus. A force feedback control apparatus and a control method for the apparatus according to the present disclosure may freely change the number and positions of haptic modules, may be installed according to various screen sizes, and may automatically detect the number and positions of the haptic devices, thereby achieving scalability.

    INTEGRATE-AND-FIRE NEURON CIRCUIT AND OPERATION METHOD THEREOF

    公开(公告)号:US20240296319A1

    公开(公告)日:2024-09-05

    申请号:US18544268

    申请日:2023-12-18

    摘要: Disclosed are an integrate-and-fire neuron circuit implemented to enable an integrate-and-fire operation with only a small number of devices by using bistable resistance characteristics of the same two heterojunction NPN devices, unlike a CMOS-based integrate-and-fire neuron circuit having a complex structure, and an operation method thereof. In one or more aspects, an integrate-and-fire neuron circuit and an operation method thereof can increase neuron integration in a system by implementing an integrate-and-fire operation of neurons using only three transistors and two capacitors, or two transistors, one resistor and one capacitor, can improve the efficiency of spiking neural network learning by controlling a fire threshold point of neurons through regulation of a gate voltage of the same two NPN devices, and can expect an increase in energy efficiency of the entire system through inhibition of excessive fire by implementing excitatory and inhibitory post-synaptic potentials.

    TREE-SEARCH BASED TRAJECTORY PLANNING AND RESOURCE MANAGEMENT METHOD AND APPARATUS OF UNMANNED AERIAL VEHICLE BASE STATION

    公开(公告)号:US20240233555A1

    公开(公告)日:2024-07-11

    申请号:US18319369

    申请日:2023-05-17

    IPC分类号: G08G5/00

    CPC分类号: G08G5/003 G08G5/0069

    摘要: The present disclosure relates to a tree-search based trajectory planning and resource management method and apparatus of an unmanned aerial vehicle base station. The tree-search based trajectory planning and resource management method of an unmanned aerial vehicle base station according to an embodiment of the present disclosure includes: decomposing an optimization problem of trajectory planning, user association (UA), resource allocation (RA), and power control (PC) related to the unmanned aerial vehicle base station into a time axis; managing resources by jointly optimizing variables of the UA, RA, and PC for an arbitrary location of the unmanned aerial vehicle base station; and obtaining the trajectory planning by obtaining position variables based on the obtained predetermined function value and a depth-first search (DFS) algorithm.