Abstract:
PROBLEM TO BE SOLVED: To provide a storage system which enables memory density of several hundred Gb/inch2 without receiving mechanical wear. SOLUTION: The method of using a magnetizable memory medium (10), exposing the memory medium to an artificial external magnetic field H coupled externally to the memory medium, simultaneously applying heat extremely locally thereto at magnitude of a bit size in bit writing and making the external magnetic field locally greater than the holding magnetic field (dependent upon temperature) in locations (32) where the heat is applied is proposed. Further, two-dimensional arrays of cantilever chips (24) are advantageously used in this storage system. The respective chips act as heat sources when activated by current. The current flows in the resistance passages in the chips (24) and generates the necessary temperature in the small memory medium locations (32) where the writing of the bit is planned. This temperature is made closer to the Curie temperature or compensation temperature of the magnetic material.
Abstract:
PROBLEM TO BE SOLVED: To easily learn and understand knowledge through a knowledge database by processing text information which is transmitted with an input character string together with information included in the knowledge database. SOLUTION: The input character string 12 of a text, a voice, etc., is converted by a semantic preprocessor 17 to a regular input network 18 of meaning units. The semantic preprocessor 17 converts the input character string 12 to the regular input network 18. A semantic processor 19 finds, in the knowledge database, the subset which matches all the semantic units of the input network 18 most. Further, expansion from the knowledge database 11 is performed in relative semantic units. The input network is called a resulting semantic network 13 there. The semantic processor 19 generates a new fractal hierarchic network of semantic units and pointers from the input network 18 and the knowledge data base 11. The resulting semantic network 13 reflects both general meanings of the input character string 12 and individual sides and is represented as the fractal hierarchical network of the semantic units and pointers like the knowledge database 11.
Abstract:
PROBLEM TO BE SOLVED: To provide a method to add elements to a database system. SOLUTION: A fractal hierarchical index database 13 and a processor 19 are included in the database system 10 and the processor 19 is used to obtain an input network 18 including a semantic unit SU1 to represent an element E1 and to evaluate an inputted character string 12 to describe the element E1 to be added to the database system 10. Next, an index database 13 is updated by the processor 19. Finally, the conventional access pointer 22 is maintained or a new access pointer 22 is generated between the element E1 and the semantic unit SU1 to represent the element E1 and the element E1 of the database system 10 is made to be accessible or retrievable.
Abstract:
PROBLEM TO BE SOLVED: To provide a probe, for scanning across a substrate in which simple and accurate operation can be made, and a data storage device equipped with the probe. SOLUTION: The data storage device includes a storage medium for storing the data in a form of a mark and at least one probe for scanning across the storage medium. The probe includes, a spring cantilever (31) mechanically fixed to the probe holding structure during operation of the probe, a chip (32) equipped with a tip of a nanoscale, and an actuator for positioning the chip (32) in longitudinal direction. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
A method for writing data to and/or reading data from locations on a surface (90) via a tip (40) comprises moving the tip between the locations on the surface. At each location, energy (250) is selectively applied to the surface via the tip and the tip and the surface are selectively forced together in synchronization with the application of energy.
Abstract:
Apparatus for reducing sensitivity of an article to mechanical shock comprises a frame; first and second planar masses mounted in the frame for bi-directional movement relative to the frame along a first axis of displacement; a first lever pivotable about a first fulcrum secured to the frame; the lever having one end connected to the first mass and the other end connected to the second mass, and the fulcrum being disposed between the ends of the lever; whereby the torque exerted about the fulcrum by the first mass is countered by the torque exerted about the fulcrum by the second mass in response to a mechanical shock applied to the frame along the axis of displacement such that an article carried by the first mass in use has reduced sensitivity to the shock.
Abstract:
An optical device comprises a substrate having a plane surface. An optical path is disposed on the substrate and extends in a plane parallel to the surface of the substrate. A recess intercepts the optical path. An optical element is provided for modifying light incident thereon. The optical element is moveable within the recess between a first position in which the optical element is located in the path and a second position in which optical element is remote from the path. A cantilever suspends the optical elements for movement within the recess between the second and first positions in a direction normal to the surface of the substrate.
Abstract:
An optical device comprises a substrate having a plane surface. An optical path is disposed on the substrate and extends in a plane parallel to the surface of the substrate. A recess intercepts the optical path. An optical element is provided for modifying light incident thereon. The optical element is moveable within the recess between a first position in which the optical element is located in the path and a second position in which optical element is remote from the path. A cantilever suspends the optical elements for movement within the recess between the second and first positions in a direction normal to the surface of the substrate.
Abstract:
In accordance with the present invention, there is provided an apparatus comprising a tape having an information layer on which information is storable in the form of perturbations, an array (10) of probes (11) that in function faces the tape (2) such that the probes scan the surface of the tape, means for selectively forming the perturbations via the probes, means for detecting the presence of the perturbations via the probes, and drive means (20, 25, 40, 42) for moving the tape relative to the array of probes. The apparatus allows to store high data capacities at a small form factor.
Abstract:
Apparatus for detecting data in a sensor signal generated by a read sensor in a local probe data storage device comprises a differentiation for subtracting a value of the sensor signal from the succeeding value of the sensor signal to generate a ternary difference signal ; and a convertor connected to the differentiator for converting the difference signal into a binary output signal indicative of the detected data. A local probe data storage device comprising such apparatus is also described.