Abstract: In illustrative implementations, shape is used to encode computer passwords or other information. The passwords may be easy for a human to remember—and yet have an extremely high number of permutations (e.g., in some cases, greater than 1030 permutations, or greater than 10261 permutations, or greater than 106264 permutations). This combination of a password being easy for a human to remember—yet having a large number of permutations—offers many practical benefits. Among other things, the huge number of permutations makes the password extremely resistant to guessing attacks. In addition, in some cases, the passwords that are created with the shapes are highly resistant to attacks by keystroke logging, mouse logging, touch-gesture logging, screen logging, shoulder surfing, phishing, and social engineering. Alternatively, the shapes may be used to encode other information, such as information that uniquely identifies a product or a machine part.

Abstract: In illustrative implementations, shape is used to encode computer passwords or other information. The passwords may be easy for a human to remember—and yet have an extremely high number of permutations (e.g., in some cases, greater than 1030 permutations, or greater than 10261 permutations, or greater than 106264 permutations). This combination of a password being easy for a human to remember—yet having a large number of permutations—offers many practical benefits. Among other things, the huge number of permutations makes the password extremely resistant to guessing attacks. In addition, in some cases, the passwords that are created with the shapes are highly resistant to attacks by keystroke logging, mouse logging, touch-gesture logging, screen logging, shoulder surfing, phishing, and social engineering. Alternatively, the shapes may be used to encode other information, such as information that uniquely identifies a product or a machine part.

Abstract: A notched 2D shape may encode information. For instance, a physical tag may display, form or include a polygon that is modified by notches and by one or more holes. This notched 2D shape may encode data that identifies, or provides information regarding, a physical product to which the tag is physically attached. Alternatively, this notched 2D shape may encode any other type of information, such as information about what we sometimes call a product shape or shape matrix. The notched shape may be an octagon that is modified by notches and by one or more holes.

Abstract: Shape-matrix geometric instruments having numerous applications including, but not limited to, anti-counterfeiting, graphical passwording, games, and geometry education. A shape-matrix geometric instrument is a manufacture and/or a method whose design is based on a shape-matrix that, in turn comprises a set of building blocks that are N-dimensional polytopes. Corner shapes are positioned in or near the interior corner spaces of at least ones of the shape-matrix building blocks. At least ones of the corner shapes differ from others in at least one property or aspect including, for example, geometric shape, orientation within the building block, and one or more surface “finishes,” such as color, shading, cross-hatching or real or apparent texture.

Abstract: Shape-matrix geometric instruments having numerous applications including, but not limited to, anti-counterfeiting, graphical passwording, games, and geometry education. A shape-matrix geometric instrument is a manufacture and/or a method whose design is based on a shape-matrix that, in turn comprises a set of building blocks that are N-dimensional polytopes. Corner shapes are positioned in or near the interior corner spaces of at least ones of the shape-matrix building blocks. At least ones of the corner shapes differ from others in at least one property or aspect including, for example, geometric shape, orientation within the building block, and one or more surface “finishes,” such as color, shading, cross-hatching or real or apparent texture.

Abstract: In illustrative implementations, shape is used to encode computer passwords or other information. The passwords may be easy for a human to remember—and yet have an extremely high number of permutations (e.g., in some cases, greater than 1030 permutations, or greater than 10261 permutations, or greater than 106264 permutations). This combination of a password being easy for a human to remember—yet having a large number of permutations—offers many practical benefits. Among other things, the huge number of permutations makes the password extremely resistant to guessing attacks. In addition, in some cases, the passwords that are created with the shapes are highly resistant to attacks by keystroke logging, mouse logging, touch-gesture logging, screen logging, shoulder surfing, phishing, and social engineering. Alternatively, the shapes may be used to encode other information, such as information that uniquely identifies a product or a machine part.

Abstract: In illustrative implementations, shape is used to encode computer passwords or other information. The passwords may be easy for a human to remember—and yet have an extremely high number of permutations (e.g., in some cases, greater than 1030 permutations, or greater than 10261 permutations, or greater than 106264 permutations). This combination of a password being easy for a human to remember—yet having a large number of permutations—offers many practical benefits. Among other things, the huge number of permutations makes the password extremely resistant to guessing attacks. In addition, in some cases, the passwords that are created with the shapes are highly resistant to attacks by keystroke logging, mouse logging, touch-gesture logging, screen logging, shoulder surfing, phishing, and social engineering. Alternatively, the shapes may be used to encode other information, such as information that uniquely identifies a product or a machine part.

Abstract: Shape-matrix geometric instruments having numerous applications including, but not limited to, anti-counterfeiting, graphical passwording, games, and geometry education. A shape-matrix geometric instrument is a manufacture and/or a method whose design is based on a shape-matrix that, in turn comprises a set of building blocks that are N-dimensional polytopes. Corner shapes are positioned in or near the interior corner spaces of at least ones of the shape-matrix building blocks. At least ones of the corner shapes differ from others in at least one property or aspect including, for example, geometric shape, orientation within the building block, and one or more surface “finishes,” such as color, shading, cross-hatching or real or apparent texture.

Abstract: A quantum mechanical measurement device is provided. A spin ensemble is provided. A first light source provides a first light at a first wavelength, wherein the first light source is positioned to provide light into the spin ensemble. A detector is positioned to detect light from the spin ensemble. A modulator modulates absorption of the first light from the first light source by the spin ensemble at a frequency greater than a Larmor frequency of the spin ensemble.

Abstract: An optical magnetometer is disclosed. The device includes a cell filled with a substance that has a magnetic moment, such as an alkali metal. First and second light sources, typically diode lasers, illuminate the cell, one optically pumping the cell and one probing the cell. The two diode lasers are set to emit light at two distinct wavelengths, one set to drive a first transition and the other set to drive a second transition within the substance filling the cell. The probe laser light transiting the cell is used to modulate the frequency of the probe laser. The two beams of light are polarized with an ellipticity of at least 0.3.

Abstract: In a first embodiment of the present invention, a hydrophone is provided comprising: a rigid tubular substrate; an annular cavity formed around the rigid tubular substrate by affixing a tubular diaphragm around the rigid tubular substrate; a flexible piezoelectric element wrapped around and bonded to the flexible tubular diaphragm; and a molded portion covering the piezoelectric element.

Abstract: A system for large scale spatial positioning of a 3D virtual object in a 3D virtual scene, includes a computing device. The computing device: displays a guide plane attached to the object, the guide plane passing through a center of the object and being translucent, the guide plane indicating lines and curves of intersection between the guide plane and other objects of the scene. When moving the object along an axis, the computing device determines a normal of the guide plane to be parallel to the axis and passing through the center of the object, and moves the guide plane with the movement of the object. When moving the object across the movement plane, the computing device determines a normal of the guide plane to be parallel to a normal of the movement plane, and holds the guide plane static.

Abstract: A method of automatic manufacturability evaluation of plastic models comprises generation of a likely pulling direction, recognition of common features on plastic parts, and then applying manufacturability rules The manufacturability rules can be specified and customized through user specified rule parameters and depend upon the geometric parameters of the recognized features. A system comprises a user interface for selection and customization of DFX (Design for ‘X’) rules for evaluation of a design. The system includes a user interface integrated with a CAD system for receiving the CAD data and displaying the results to the user. Geometry analysis engines are integrated into the system, for extracting the various features and corresponding parameters required as input to the manufacturability rules. The system further involves extensible interfaces for rules and analysis engines which allows users to write their own customized rules and engines and integrate these into the CAD based DFX evaluation system.

Abstract: A method of automatic manufacturability evaluation of plastic models comprises generation of a likely pulling direction, recognition of common features on plastic parts, and then applying manufacturability rules The manufacturability rules can be specified and customized through user specified rule parameters and depend upon the geometric parameters of the recognized features. A system comprises a user interface for selection and customization of DFX (Design for ‘X’) rules for evaluation of a design. The system includes a user interface integrated with a CAD system for receiving the CAD data and displaying the results to the user. Geometry analysis engines are integrated into the system, for extracting the various features and corresponding parameters required as input to the manufacturability rules. The system further involves extensible interfaces for rules and analysis engines which allows users to write their own customized rules and engines and integrate these into the CAD based DFX evaluation system.

Abstract: A golf swing training device includes a base, an extension bar, and a grid assembly. The grid assembly includes a grid and a putting flange. The grid assembly further includes a grid adjuster connecting the grid and putting flange to the extension bar. An alignment rod is removably coupled to the base.

Abstract: A magnetometer is constructed wherein the sweeping is performed at one half the Larmor frequency and has as its center the absorption line. This allows the emitter to tune onto the absorption line twice per cycle as it passes through the line. This causes the increase in absorption as would the normal sweep of a Bell-Bloom magnetometer but avoids the drawbacks, such as drift and heading error.

Abstract: A method and associated apparatus for capturing an image of a 3D object (100) which encodes the surface geometry of at least a portion of the object, comprising: 1. projecting (304) a plurality of fringe patterns (312A, 314A) onto the object; 2. capturing (306) phase alterations in reflections of the fringe patterns (312B, 314B) from the object; 3. projecting a uniform image (310A) onto the object; 4. capturing a reflection of the uniform image (310B) from the object; and 5. combining (310) captured phase alterations and captured uniform image reflection on a pixel-by-pixel basis, thereby forming a holoimage representation of the object.

Abstract: A golf swing training device includes a base, an extension bar, and a grid assembly. The grid assembly includes a grid and a putting flange. The grid assembly further includes a grid adjuster connecting the grid and putting flange to the extension bar. An alignment rod is removably coupled to the base.