Abstract:
A memory cell for an electrically writeable and erasable memory medium as well as a memory medium thereof is provided. The memory cell comprises a data recording element, the data recording element has a plurality of multiple-layer structure disposed one on top of another; each the multiple-layer structure comprising a plurality of sequentially disposed individual layers. At least one of the plurality of individual layers is capable of changing phase between a crystalline state and an amorphous state in response to an electrical pulse, one of the plurality of individual layers having at least one atomic element which is absent from other one of the plurality of individual layers, and the plurality of multiple-layer structure is of a superlattice-like structure to lower a heat diffusion out of the data recording element to shorten a phase change time of the respective individual layers.
Abstract:
The present invention involves a surveying system and method which determines the position of a object point using two images. First, at least two reference points appearing on the two images are correlated. Then the position of the object point is determined based on the two images and the two reference points. The application discloses the use of light rays from a region and based on those light rays generates a map of the region.
Abstract:
The invention relates to digital memorizing devices using magnetic memory elements. A memory on cylindrical magnetic domains comprising a single-axis magnetic layer (1) and, mounted on its surface, an input-output channel (5), information storage registers (2), a device (36) for generating cylindrical magnetic domains and a device (37) for reading-out the cylindrical magnetic domains. The channel (5) consists of meander-shaped conductors (25, 26) located above each other. Above the channel (5) is located an additional conductor (38), identical to the conductor (26), in which the space (42), limited by the sides of the neighbouring loops (39, 40) of the meander and facing the registers (2), is fully filled with an electric conductive material. The information storage registers (2) are magnetically connected to the channel (5) and consist of electric conductive layers (6, 7, 8) with periodically alternating openings (9, 12; 10, 13; 11, 14).