Abstract: A near-eye display includes an image generator that generates angularly related beams over a range of angles for forming a virtual image and a waveguide that propagates the angularly related beams over a limited range of angles. An input aperture of the waveguide includes a plurality of controllable components that are selectively operable as diffractive optics for injecting subsets of the angularly related beams into the waveguide. An output aperture of the waveguide includes a plurality of controllable components that selectively operable as diffractive optics for ejecting corresponding subsets of the angularly related beams out of the waveguide toward an eyebox. A controller synchronizes operation of the controllable components of the output aperture with the propagation of different subsets of angularly related beams along the waveguide for ejecting the subsets of angularly related beams out of the waveguide for presenting the virtual image within the eyebox.

Abstract: A near-eye display includes a compound waveguide for presenting viewers with virtual images visible within an eyebox at a limited relief distance from the compound waveguide. The compound waveguide is assembled from a plurality of waveguides that are at least partially optically isolated for conveying different portions of the virtual image. An input couple injects the different portions of the virtual image into predetermined combinations of the waveguides, and an output coupling ejects the different portions of the virtual image from the waveguides toward the eyebox in a form that at least partially constructs a pupil within the eyebox.

Abstract: A near-eye display of a type having an image generator for generating a succession of angularly related beams and waveguide for propagating the angularly related beams to an eyebox within which a virtual image is visible includes a controllable output aperture for such purposes as reconstructing a better defined pupil within the eyebox while also preserving the possibility for viewing the ambient environment from the eyebox through the controllable output aperture.

Abstract: Processing packet information using an array of processing elements involves performing search-independent processing on packet information in parallel with a search of a first stage memory unit and then using the processed information and the result from the search of the first stage memory unit to generate search information for a search of a second stage memory unit. The search-independent processing of packet information in parallel with search operations can be repeated at each stage of the array. By performing search-independent processing of packet information in parallel with search operations instead of serially, latency that is contributed from the relatively slow search operations is reduced.

Abstract: A near-eye display of a type having an image generator for generating a succession of angularly related beams and waveguide for propagating the angularly related beams to an eyebox within which a virtual image is visible includes a controllable output aperture for such purposes as reconstructing a better defined pupil within the eyebox while also preserving the possibility for viewing the ambient environment from the eyebox through the controllable output aperture.

Abstract: A near-eye display projects virtual images from an image generator to an eyebox within which the virtual images can be seen by a viewer. A first optical path conveys image-bearing light from the image generator to a selectively reflective powered optic and a second optical path conveys the image-bearing light along a line of sight from the selectively reflective powered optic to the eyebox. First and second selectively reflective surfaces fold the first optical path with respect to the second optical path to locate the image generator out of the line of sight to the eyebox. The image generator is effectively inclined to the line of sight to the eyebox for reducing a thickness of the near-eye display. The selectively reflective powered optic is oriented normal to local overlapping portions of the first and second optical paths at the selectively reflective powered optic.

Abstract: A near-eye display projects virtual images from an image generator to an eyebox within which the virtual images can be seen by a viewer. A first optical path conveys image-bearing light from the image generator to a selectively reflective powered optic and a second optical path conveys the image-bearing light along a line of sight from the selectively reflective powered optic to the eyebox. First and second selectively reflective surfaces fold the first optical path with respect to the second optical path to locate the image generator out of the line of sight to the eyebox. The image generator is effectively inclined to the line of sight to the eyebox for reducing a thickness of the near-eye display. The selectively reflective powered optic is oriented normal to local overlapping portions of the first and second optical paths at the selectively reflective powered optic.

Abstract: A near-eye display includes a compound waveguide for presenting viewers with virtual images visible within an eyebox at a limited relief distance from the compound waveguide. The compound waveguide is assembled from a plurality of waveguides that are at least partially optically isolated for conveying different portions of the virtual image. An input couple injects the different portions of the virtual image into predetermined combinations of the waveguides, and an output coupling ejects the different portions of the virtual image from the waveguides toward the eyebox in a form that at least partially constructs a pupil within the eyebox.

Abstract: An ocular device includes a housing, a rotatable ring, a first prism fixed in the rotatable ring, an indexable ring and a second prism fixed in the indexable ring. The housing has a stepped inner profile defining first and second circular tracks in the housing, the tracks being concentric about a rotational axis. The rotatable ring is disposed in the first circular track and is freely rotatable about the rotational axis with respect to the housing. The indexable ring is disposed in the second circular track and is indexable about the rotational axis.

Abstract: A multipath processing architecture that allows multipath packets to be distributed across multiple paths using a hash function and a modulo-arithmetic-based mapping function is disclosed. In one embodiment, the multipath processing architecture is implemented as part of a packet classification engine of a network node.

Abstract: Processing packet information using an array of processing elements involves performing search-independent processing on packet information in parallel with a search of a first stage memory unit and then using the processed information and the result from the search of the first stage memory unit to generate search information for a search of a second stage memory unit. The search-independent processing of packet information in parallel with search operations can be repeated at each stage of the array. By performing search-independent processing of packet information in parallel with search operations instead of serially, latency that is contributed from the relatively slow search operations is reduced.

Abstract: A multipath processing architecture that allows multipath packets to be distributed across multiple paths using a hash function and a modulo-arithmetic-based mapping function is disclosed. In one embodiment, the multipath processing architecture is implemented as part of a packet classification engine of a network node.

Abstract: An apparatus is moveable over a surface to affix a line to the surface by discharging fastening elements. Such an apparatus may be useful, for example, in laying tennis lines on a clay tennis court, alleviating the need to secure the lines to the court by hand. The apparatus comprises a frame and/or platform having one or more applicators (e.g., nail guns) to discharge fastening elements (e.g., nails).

Abstract: A modified stress skin panel includes a stress skin panel and at least two substantially vertical studs which are molded into the stress skin panel during manufacture or inserted after manufacture. An opening is formed between two substantially vertical studs for insertion of a window, door, or other item. A header stud may also be attached to two of the at two substantially vertical studs to support a load above the opening. A stress skin panel stud inserter includes a stud guide assembly, a heater element, a heater controller, a pair of rails, and a pair of clamps. A second embodiment of a stress skin panel stud inserter utilizes a stud heater element which is attached to a bottom of the stud. A third embodiment of a stress skin panel stud inserter includes a hot air shroud and an alignment jig. The hot air shroud is attached to a bottom of the stud and the alignment jig is used to guide the stud during insertion thereof into the stress skin panel.

Abstract: A method and system for stabilizing the output frequencies of a multimode laser of the type which operates in at least three optical cavity modes includes detecting the intermodulation product frequency, using a suitable photodetector. The optical cavity modes may be either purely longitudinal for a single transverse mode, or may include radiation from multiple transverse cavity excitations, also with possible longitudinal plurality. The detector output is monitored for the intermodulation product beat signal which is contained in the detector current at the differences of the primary difference frequencies of the optical modes. A signal derived from the frequency of the intermodulation product term is compared with a reference signal, and the resulting error signal is driven to zero by varying the optical length of the laser oscillator cavity in response to the error signal, thereby causing the operating modes of the laser to be stabilized.

Abstract: Wires are employed for the setting of fractured bones, or for stabilization of bones making up a joint. A portion of the wire protrudes from at least one of the bone segments and, to prevent movement or loss of these wires, and to prevent injury to surrounding tissue, other persons, or clothing, by the exposed ends, caps are provided which are easily secured to the ends and graspable for removal of the wire, when desired. In some cases, the ends of the wire may protrude through the skin and the caps are attached externally.

Abstract: A protective device, such as a boxing helmet, rib or muscle protector, athletic mat, hockey helmet, motorcycle helmet and similar devices, is formed such that the major shock absorption is accomplished by a series of bowed, preferably plastic, members which flex when the device is subjected to an impact, so as to absorb the shock and dissipate its transmission to the user. Because of the nature of these bowed members, when the shock has been dissipated, the member returns to its original position so as to be able to absorb further shocks.

Abstract: N-(Phosphonoacetyl)-L-aspartic acid (PALA) compounds, especially novel PALA compounds, and methods for their preparation in large amounts are disclosed. These methods include preparation of certain PALA compounds such as PALA dibenzyl ester, disodium PALA, and the cyclohexylamine salt of dibenzyl PALA.

Abstract: N-(Phosphonoacetyl)-L-aspartic acid (PALA) compounds, especially novel PALA compounds, and methods for their preparation in large amounts are disclosed. These methods include preparation of certain PALA compounds such as PALA dibenzyl ester, disodium PALA, and the cyclohexylamine salt of dibenzyl PALA.

Abstract: N-(Phosphonoacetyl)-L-aspartic acid (PALA) compounds, especially novel PALA compounds, and methods for their preparation in large amounts are disclosed. These methods include preparation of certain PALA compounds such as PALA dibenzyl ester, disodium PALA, and the cyclohexylamine salt of dibenzyl PALA.