Abstract: The present disclosure provides a brake system including (a) a brake stack, (b) a force member moveable between a retracted position and an extended position in response to a brake command, wherein the force member contacts the brake stack in the extended position, and wherein the brake system includes a running clearance defined by a distance between the brake stack and the force member in the retracted position, (c) a sensor in communication with the brake stack to measure a force between the force member and the brake stack in response to the brake command, and (d) a brake control unit configured to determine a running clearance brake command defined as a percentage of a maximum braking force that causes the force member to contact the brake stack, wherein the running clearance brake command is determined based on the force measured by the sensor for a plurality of brake commands.

Abstract: The present disclosure provides a brake system including (a) a brake stack, (b) a force member moveable between a retracted position and an extended position in response to a brake command, wherein the force member contacts the brake stack in the extended position, and wherein the brake system includes a running clearance defined by a distance between the brake stack and the force member in the retracted position, (c) a sensor in communication with the brake stack to measure a force between the force member and the brake stack in response to the brake command, and (d) a brake control unit configured to determine a running clearance brake command defined as a percentage of a maximum braking force that causes the force member to contact the brake stack, wherein the running clearance brake command is determined based on the force measured by the sensor for a plurality of brake commands.

Abstract: A laser diode array having a plurality of diode bars bonded by a hard solder to expansion matched spacers and mounted on a gas or liquid cooled heatsink. The spacers are formed of an aluminum/diamond composite, a silver/diamond composite or a silver/aluminum alloy/diamond composite material having a thermal expansion that closely matches that of the laser bars.

Abstract: An image projector includes a digital micro device (DMD) spatial light modulator and a rotatable actuator. The rotatable actuator is disposed in a path of light reflected from the spatial light modulator. The rotatable actuator includes a first region and a second region. The first region is tilted at a first non-normal angle with respect to an axis of rotation of the rotatable actuator. The second region is tilted at a second non-normal angle with respect to the axis of rotation of the rotatable actuator. Light reflected by the spatial light modulator and passing through the first region is displaced one pixel relative to light reflected by the spatial light modulator and passing through the second region.

Abstract: A multi-DMD projection system uses an extended X-cube color splitting/recombining prism to implement splitting and recombining functions at different sections of the cube. Light directed from a white light source is split into red, green and blue components in a lower section of the cube. The components are directed to respective first, second and third DMDs for separate modulations and reentered into the X-cube prism by TIR prism for recombining at an upper section of the cube.

Abstract: An image projector includes a digital micro device (DMD) spatial light modulator and a rotatable actuator. The rotatable actuator is disposed in a path of light reflected from the spatial light modulator. The rotatable actuator includes a first region and a second region. The first region is tilted at a first non-normal angle with respect to an axis of rotation of the rotatable actuator. The second region is tilted at a second non-normal angle with respect to the axis of rotation of the rotatable actuator. Light reflected by the spatial light modulator and passing through the first region is displaced one pixel relative to light reflected by the spatial light modulator and passing through the second region.

Abstract: A street sign mounting assembly has a universal sign post cap and at least one sign holder bracket. The cap is universally adapted to fit common street sign posts including, without limitation, square, round and U-channel posts. The sign holder brackets are designed to hold street signs of varying thicknesses.

Abstract: A multi-DMD projection system uses an extended X-cube color splitting/recombining prism to implement splitting and recombining functions at different sections of the cube. Light directed from a white light source is split into red, green and blue components in a lower section of the cube. The components are directed to respective first, second and third DMDs for separate modulations and reentered into the X-cube prism by TIR prism for recombining at an upper section of the cube.

Abstract: A street sign mounting assembly has a universal sign post cap and at least one sign holder bracket. The cap is universally adapted to fit common street sign posts including, without limitation, square, round and U-channel posts. The sign holder brackets are designed to hold street signs of varying thicknesses.

Abstract: A street sign mounting assembly has a universal sign post cap and at least one sign holder bracket. The cap is universally adapted to fit common street sign posts including, without limitation, square, round and U-channel posts. The sign holder brackets are designed to hold street signs of varying thicknesses.

Abstract: Display systems and methods for mobile devices and mobile devices are disclosed. In one embodiment, a display system for a mobile device is provided. The mobile device is handheld and includes a primary display screen. The display system includes an auxiliary screen and a connecting device coupled to the auxiliary screen and attachable to the mobile device. An image from the mobile device is producible on the auxiliary screen. The display system is removable from the mobile device.

Abstract: A street sign mounting assembly has a universal sign post cap and at least one sign holder bracket. The cap is universally adapted to fit common street sign posts including, without limitation, square, round and U-channel posts. The sign holder brackets are designed to hold street signs of varying thicknesses.

Abstract: A method and system are disclosed which provide additional revenue stream to a client while providing training multimedia to a plurality of end users associated with the client. The method comprises comparing a client profile to a plurality of advertisements, selecting an advertisement from the plurality of advertisements based on the client profile, combining the selected advertisement with the training multimedia to create a combined multimedia, and delivering the combined multimedia to a selected one of the plurality of end users.

Abstract: A street sign mounting assembly including a sign post cap and at least one sign holder bracket. The cap is universally adapted to fit common street sign posts, while the sign holder brackets are designed to hold street signs of varying thicknesses. The cap is coupled to a sign holder bracket using a friction-lock connection assembly. Multiple sign holder brackets are likewise connected to one another using a friction-lock connection assembly.

Abstract: Various embodiments of a rear-projection screen, a method of rear-projection collimation and a projection video display (PVD) system. In one embodiment, a rear-projection screen includes: (1) a total-internal-reflection (TIR) fresnel lens configured to aim light received at an incidence angle toward a central axis of the TIR fresnel lens at a convergence angle and (2) a refractive fresnel lens configured to refract the light received from the TIR fresnel lens and at least to reduce the convergence angle.

Abstract: The present invention provides an improved general-purpose system and method for providing dynamically updateable, context-sensitive configuration information based on the state of the application, external configuration data and a set of rules associated with that data. An application definition repository stores application configuration data and rules for managing the application. An application context manager applies application context data to the rules and evaluates the rules to get a context-based result for the application. The application context manager parses the rules and applies retrieved context data and symbols to the rules to reach a result. In addition, an application configuration engine applies the context-based result of evaluating the rules to provide, to a client, information for configuring the application appropriately based on the application context.

Abstract: A method of authenticating an online transaction over a first network uses 2-factor authentication of the user to defeat hacker attacks. A communication device is registered for use with the method. The communication device is configured to receive messages over a second network independent of the first network. The user is authenticated over the first network using a first factor, such as a username and password, and then initiates the transaction. A request to execute the transaction is received and a one-time password is obtained to be used as a second factor of authentication. The one-time password and details describing the transaction are sent to the communication device over the second network. The one-time password is received from the user over the first network to complete the second factor of authentication.

Abstract: Various embodiments of a rear-projection screen, a method of rear-projection collimation and a projection video display (PVD) system. In one embodiment, a rear-projection screen includes: (1) a total-internal-reflection (TIR) fresnel lens configured to aim light received at an incidence angle toward a central axis of the TIR fresnel lens at a convergence angle and (2) a refractive fresnel lens configured to refract the light received from the TIR fresnel lens and at least to reduce the convergence angle.

Abstract: An improved window frame and window piece for a micromirror assembly is disclosed herein. The window frame includes a stress-relieving contour positioned in the middle of the frame that can absorb the mechanical stresses applied to the window frame from the ceramic base and from the window piece. The window frame may be comprised of a single piece of sheet metal that has been stamped to include a stress-relieving contour. The stress-relieving contour may be comprised of a variety of shapes, including a “U” shape, an inverted “U” shape, a curved step shape, or other combinations thereof.

Abstract: According to one embodiment, a method of increasing a perceived resolution of a display includes directing light at an optical dithering system. The position of one or more optical elements associated with the optical dithering system is selectively alternated between a first set of positions relative to a first axis of rotation and a second set of positions relative to a second axis of rotation. As a result, light is alternately directed to at least four different locations on the display, thereby increasing the perceived resolution of the display.