Abstract: Apparatus and method provided herein are directed to a linear differential directional microphone array (LDDMA), which takes into account the directionality of the array elements. The LDDMA may be designed by generating a steering vector for a linear array (LA) having preselected parameters including parameters ?, p, ?, N, and M, generating a constraint matrix based on the steering vector, reformulating the constraint matrix based on a microphone response matrix and a steering matrix, obtaining a beamformer by applying a minimum norm solution in terms of the constraint matrix, verifying a desired characteristic of the LA by calculating the beamformer for a desired direction, and constructing the LA based on the preselected parameters and the beamformer.

Abstract: A touch panel and a touch display are disclosed. The touch panel mainly comprises a light transmissive substrate and two sensing units. The two sensing units are disposed oppositely through the light transmissive substrate. A mesh width of a metal mesh in the two sensing units is large, which can increase a variation of capacitance value and improve the touch sensitivity. In addition, an angle between metal lines with sensing function is configured in a random manner under a certain condition to reduce an area of nodes, thus a rounding effect at the nodes can be effectively reduced or eliminated. The metal meshes of the two sensing units disposed oppositely are staggered with a non-conductive node-free pattern to form a staggered pattern with irregular polygons, so that no interference fringes would be generated when the touch panel is used together with display panels of various mainstream sizes.

Abstract: The present disclosure discloses a sound detection method.

Abstract: Apparatus and method provided herein are directed to a linear differential directional microphone array (LDDMA), which takes into account the directionality of the array elements. The LDDMA may be designed by generating a steering vector for a linear array (LA) having preselected parameters including parameters ?, p, ?, N, and M, generating a constraint matrix based on the steering vector, reformulating the constraint matrix based on a microphone response matrix and a steering matrix, obtaining a beamformer by applying a minimum norm solution in terms of the constraint matrix, verifying a desired characteristic of the LA by calculating the beamformer for a desired direction, and constructing the LA based on the preselected parameters and the beamformer.

Abstract: A touch panel and a touch display are disclosed. The touch panel mainly comprises a light transmissive substrate and two sensing units. The two sensing units are disposed oppositely through the light transmissive substrate. A mesh width of a metal mesh in the two sensing units is large, which can increase a variation of capacitance value and improve the touch sensitivity. In addition, an angle between metal lines with sensing function is configured in a random manner under a certain condition to reduce an area of nodes, thus a rounding effect at the nodes can be effectively reduced or eliminated. The metal meshes of the two sensing units disposed oppositely are staggered with a non-conductive node-free pattern to form a staggered pattern with irregular polygons, so that no interference fringes would be generated when the touch panel is used together with display panels of various mainstream sizes.

Abstract: A switch reluctance motor wide speed-regulation range cross-control method, the switch reluctance motor wide speed-regulation range control system consisting of a revolving speed regulator, a current chopper controller, an angle position controller, a chopper counter, a comparison selector and two resettable constant registers; the chopper counter counts the current chopping number of each electrical period, and according to the comparison result between a counting value of the chopper counter and a constant value set by the two constant registers, the comparison selector selects the current chopper controller or the angle position controller, such that when in the three phases of low revolving speed, medium revolving speed and high revolving speed or in the runtime of acceleration, deceleration and uniform velocity, the current chopper controller and the angle position controller can automatically switch, and seamlessly connect without being affected by load change, and switching from a turn-on angle to a tu

Abstract: A switch reluctance motor wide speed-regulation range cross-control method, the switch reluctance motor wide speed-regulation range control system consisting of a revolving speed regulator, a current chopper controller, an angle position controller, a chopper counter, a comparison selector and two resettable constant registers; the chopper counter counts the current chopping number of each electrical period, and according to the comparison result between a counting value of the chopper counter and a constant value set by the two constant registers, the comparison selector selects the current chopper controller or the angle positon controller, such that when in the three phases of low revolving speed, medium revolving speed and high revolving speed or in the runtime of acceleration, deceleration and uniform velocity, the current chopper controller and the angle positon controller can automatically switch, and seamlessly connect without being affected by load change, and switching from a turn-on angle to a turn