7 results about "Cross point" patented technology

An object of the present invention is to provide a neuromorphic system including a synaptic unit capable of causing a gradual change in resistance for analog information processing, and an operating method therefor. In order to achieve the above object, an aspect of the present invention may provide a neuromorphic system including an input signal unit for generating an input signal, a synapse unit including a plurality of synaptic units that receive a signal of the input signal unit and cause a current to flow according to a set weight, an output signal unit for generating an output signal by receiving a current generated from the synapse unit, and a controller unit for controlling the input signal unit, the synapse unit, and the output signal unit, in which the input signal unit includes a digital-to-analog converter (DAC), the synaptic units include a plurality of memory cells that are connected to each other and are each capable of selectively storing a logic state, the plurality of memory cells are arranged in a cross-point structure including an input electrode line and an output electrode line that cross each other to form one or more memory arrays, the output signal unit includes an analog-to-digital converter (ADC), and the controller unit generates an analog input signal through the DAC in the input signal unit, allows the generated analog input signal to be applied to each of the plurality of memory cells included in the synaptic unit so that a current flows, and generates a sum of currents flowing from the plurality of memory cells as the output signal through the ADC in the output signal unit.

The utility model discloses large displacement friction damping device of multidirectional sliding, including first friction plate and second friction plate, second friction plate all sets up between two first friction plates, first friction plate all is cross -shaped, and the cross point position of cross -shaped is equipped with first friction piece, and four end portions all are first anchor nail connecting part for first anchor nail of wearing and setting, every second friction plate all is circular, and the position of the center of a circle coincides with the cross point position of all cross -shaped on a straight line, and the periphery annularly distributes second anchor nail connecting part for second anchor nail of wearing and setting, and every second anchor nail connecting part distance corresponding one side any first friction plate's two first anchor nail connecting part is equal, and the first anchor nail connecting part of a straight line arrangement is connected with same first anchor nail, and all second anchor nail connecting parts of a straight line arrangement all are connected with same second anchor nail. The utility model has the construction form of playing the damping effect in each direction of horizontal plane, can realize the effect of bridge in longitudinal and transverse isolation.

This invention discloses a switchless redundant fault-tolerant memristor cross array circuit for resolving bridging faults, comprising a main array, two redundant word lines, two redundant bit lines, and a controller. The main array consists of N word lines, M bit lines, and cross-point memristor cells. The redundant word lines cross with all bit lines, and the redundant bit lines cross with all word lines. The controller is directly connected to all word lines, redundant word lines, bit lines, and redundant bit lines. This circuit does not contain any physical switches for fault isolation, has a simple structure, low hardware overhead, and is easy to integrate.

Technology for reading memory cells in a cross-point architecture. A memory system reads one memory cell in each module in parallel. The memory system performs two reads of the memory cells with a first read using a first reference signal and a second read using a second reference signal instead of the first reference signal. The second reference signal has a different magnitude from the first reference signal in order to compensate for differences between the modules.

Object image values for each position in the image of ultrasound reflectivity are computed by summing image values from images associated with selected cross-points of different rows and columns in an array of ultrasound transducers. The image value for each of these cross points is determined by transmitting ultrasound transmission signals from the ultrasound transducers at a subsampled first selection of first sampling locations along the column of the cross point and receiving reflections at least partly simultaneously from a subsampled second selection of second sampling locations along the row of the cross point. The image values for different locations are computed by synthesizing vertical resolution from the ultrasound sub-sampled transmission signals and horizontal resolution from the sub-sampled received signals. The ranges of sub-sampling locations for each cross point have large overlap with the sub-sampling ranges of for neighboring cross points, with the sub-sampling locations for different cross-points lying at least partly interspersed between each other in the overlap. The extension of sub-sampling locations over large overlapping ranges ensures high resolution in the cross-point images and the use of different sampling points in the overlap reduces artifacts in the summed image.

An apparatus comprising a crystal; at least three first wires arranged substantially parallel to each other; at least two second wires arranged substantially parallel to each other, each second wire arranged non-parallel to each first wire, such that each second wire crosses each first wire, forming at least six cross points; and at least six colour centres, each colour centre located within the crystal adjacent a different one of the at least six cross points.

This invention discloses a two-dimensional fast-reflecting mirror support structure, including a mounting base and multiple sets of cross-shaped spring assemblies disposed on the mounting base. Each set of cross-shaped spring assemblies includes two flat springs arranged in a cross shape, with the deflection axes of the flat springs collinear. The multiple sets of cross-shaped spring assemblies are arranged axially, and the cross points of each set of springs coincide, forming a common pivoting elastic support structure. This invention achieves wear-free and backlash-free two-axis deflection by using elastic deformation drive, solving the core problems of accuracy attenuation and high maintenance costs of traditional fast-reflecting mirrors. It breaks through the limitation of the deflection angle of traditional fast-reflecting mirrors, achieving a large angle deflection of ±7°, while improving the rotation accuracy to within 0.1 arcseconds.