Abstract:
A display controller system is controlled to provide a display surface zoom using hardware scaling from user input at the operating system, application program or hardware level. User input defining coordinates of a frame portion within a frame buffer memory is obtained, and a resolution of the zoom display device is determined. An aspect ratio of the zoom portion defined by the user input is adjusted to correspond to the zoom display device resolution. The display controller system is programmed to implement the display surface zoom to provide a full screen view of the zoom portion on the zoom display device. In the display controller system, the zoom portion of the frame buffer memory is scaled, converted into a display signal and output.
Abstract:
A collapsible post structure having a fragile region that allows the post to collapse when the latter is struck. The post structure includes an elongated anchoring member. The anchoring member having an anchoring member hollow section that extends longitudinally into one longitudinal end thereof and defining an anchoring member inner surface. The post structure also includes an elongated supporting member. The supporting member having a supporting member hollow section that extends longitudinally into one longitudinal end thereof and defining a supporting member inner surface. The post structure further includes a connecting component, the connecting component having a connecting component first section and a connecting component second section. The connecting component first section and the connecting component second section are configured and sized so as to be respectively insertable into the anchoring member hollow section and the supporting member hollow section. The connecting component first section and the connecting component second section respectively define a first friction surface and a second friction surface. The supporting member is frictionally attached in end-to-end relationship to the anchoring component by the connecting component with the first friction surface frictionally contacting the anchoring member inner surface and the second friction surface frictionally contacting the supporting member inner surface. The anchoring member and the supporting member having a greater resistance to impact than the connecting component.
Abstract:
A display controller system is controlled to provide a display surface zoom using hardware scaling from user input at the operating system, application program or hardware level. User input defining coordinates of a frame portion within a frame buffer memory is obtained, and a resolution of the zoom display device is determined. An aspect ratio of the zoom portion defined by the user input is adjusted to correspond to the zoom display device resolution. The display controller system is programmed to implement the display surface zoom to provide a full screen view of the zoom portion on the zoom display device. In the display controller system, the zoom portion of the frame buffer memory is scaled, converted into a display signal and output.
Abstract:
A system for mounting a sign to a post comprises an elongated channel member adapted to be mounted on a backside of a sign and a bracket adapted to be mounted to a post to which the sign is to be mounted. The bracket has a channel engaging portion adapted to be slidably engaged into the channel member on the backside of the sign. The bracket comprises an endless collar extending along a continuous closed line and adapted to be fitted over the post. The collar defines at least one transversally oriented hole in which a threaded fastener is threadably engaged with a leading end thereof projecting inwardly of the continuous endless collar for exerting a pushing action on the post in order to secure the collar on the post while at the same time drawing the channel member against the post so as to prevent relative movement between the sign and the bracket.
Abstract:
A collapsible post structure having a frangible region that allows the post to collapse when the latter is struck. The post structure includes an elongated anchoring member. The anchoring member having an anchoring member hollow section that extends longitudinally into one longitudinal end thereof and defining an anchoring member inner surface. The post structure also includes an elongated supporting member. The supporting member having a supporting member hollow section that extends longitudinally into one longitudinal end thereof and defining a supporting member inner surface. The post structure further includes a connecting component, the connecting component having a connecting component first section and a connecting component second section. The connecting component first section and the connecting component second section are configured and sized so as to be respectively insertable into the anchoring member hollow section and the supporting member hollow section. The connecting component first section and the connecting component second section respectively define a first friction surface and a second friction surface. The supporting member is frictionally attached in end-to-end relationship to the anchoring component by the connecting component with the first friction surface frictionally contacting the anchoring member inner surface and the second friction surface frictionally contacting the supporting member inner surface. The anchoring member and the supporting member having a greater resistance to impact than the connecting component.
Abstract:
A delineator post adapted to spring back to its original upright position after an impact comprises an inground socket permanently installed in a paved surface. A resilient plug having a lower end portion is inserted in the inground socket. The resilient plug has an upper end portion projecting upwardly from the inground socket. An anchor is provided for releasably anchoring the resilient plug to the inground socket. A post segment is fastened over the upper end portion of the resilient plug. The tension in the resilient plug when subject to a deformation as a result of an impact on the post segment returns the post segment back to its original upright position.
Abstract:
An interface device for performing mode transformation in optical waveguides includes an optical waveguide core for propagating light of a particular wavelength or a plurality of wavelengths. The optical waveguide core terminates in a subwavelength grating configured to change the propagation mode of the light. The subwavelength grating has a pitch sufficiently less than the wavelength of the light to frustrate diffraction. The device can thus serve as an optical coupler between different propagating media, or as an anti-reflective or high reflectivity device.
Abstract:
A technique for high sensitivity evanescent field molecular sensing employs a detection scheme that simultaneously couples a polarized beam to a single mode of a waveguide, and couples the polarized beam out of the waveguide to specularly reflect the beam by the same grating. Strong interaction with the single (preferably TM) mode is provided by using a silicon on insulator (SOI) wafer having a waveguide thickness chosen between 10-400 nm so that the majority of the mode field strength spans the evanescent field. Well known, robust techniques for producing a grating on the waveguide are provided. Interrogation from a backside of the SOI wafer is taught.
Abstract:
A technique for high sensitivity evanescent field molecular sensing employs a detection scheme that simultaneously couples a polarized beam to a single mode of a waveguide, and couples the polarized beam out of the waveguide to specularly reflect the beam by the same grating. Strong interaction with the single (preferably TM) mode is provided by using a silicon on insulator (SOI) wafer having a waveguide thickness chosen between 10-400 nm so that the majority of the mode field strength spans the evanescent field. Well known, robust techniques for producing a grating on the waveguide are provided. Interrogation from a backside of the SOI wafer is taught.
Abstract:
An interface device for performing mode transformation in optical waveguides includes an optical waveguide core for propagating light of a particular wavelength. The optical waveguide core terminates in a subwavelength grating configured to change the propagation mode of the light. The subwavelength grating has a pitch sufficiently less than the wavelength of the light to frustrate diffraction. The device can thus serve as an optical coupler between different propagating media, or as an anti-reflective or high reflectivity device.