Abstract: A device for attaching to an asset in order to allow the location of the asset to be tracked. The device comprises: a hermetically sealed outer casing; and a circuit board hermetically sealed within the outer casing. The circuit board comprises a low power wireless radio frequency transmitter and electronic components for causing the transmitter to repeatedly transmit a device identifier at intervals that are randomly varied around a fixed interval.

Abstract: A display system is disclosed for use in an augmented reality display (30), the system comprises a waveguide (32) having a front surface and a rear surface. A front input projector (34) projects polychromatic light through a front surface, and a back input projector (36) projects polychromatic light through the rear surface. Input light impinges on an input grating (38) on a rear surface of the waveguide (32), and light travels through the waveguide by total internal reflection. An output grating (40) is provided for coupling light out of the waveguide. A plurality of front and back input projectors (34, 36) are provided in a staggered configuration along the width of the waveguide (32) and respective edges of adjacent front and back input projectors are aligned along the width of the waveguide to permit a continuous projection of light.

Abstract: A vascular access device is disclosed including a needle insertion guide having a proximal end and a distal end a the guide including a needle insertion guide having a proximal end and a distal end and a vessel interface configured for attaching the distal end of the guide to a target on an unbroken outer wall of a blood vessel of a living subject and a skin interface configured for attaching the proximal end of the guide to a skin of the living subject. Optionally the vessel interface is connected to the guide by a flexible joint configured. Optionally two vascular access devices are connected by an electrically conductive connection. Optionally the vascular access device includes a sensor to determine when a needle enters the blood vessel. Optionally the vascular access device serves as a marker for a sensor determining a status of the blood vessel.

Abstract: A vascular access device is disclosed including a needle insertion guide having a proximal end and a distal end a the guide including a needle insertion guide having a proximal end and a distal end and a vessel interface configured for attaching the distal end of the guide to a target on an unbroken outer wall of a blood vessel of a living subject and a skin interface configured for attaching the proximal end of the guide to a skin of the living subject. Optionally the vessel interface is connected to the guide by a flexible joint configured. Optionally two vascular access devices are connected by an electrically conductive connection. Optionally the vascular access device includes a sensor to determine when a needle enters the blood vessel. Optionally the vascular access device serves as a marker for a sensor determining a status of the blood vessel.

Abstract: An optical device is disclosed for expanding input light in two dimensions in an augmented reality display. The device comprises a waveguide (12) and three linear diffraction grat-ings H0, H1, H2. An incident beam from a projector illuminates an input grating H0 with polychromatic light, and the light is coupled into the waveguide (12). The other two gratings H1, H2 are overlaid on top of one another. Light can be diffracted by one grating H1 into a first diffracted order and towards the other grating H2 which can couple the light out of the waveguide (12) towards a viewer. In another arrangement the crossed gratings H1, H2 may be replaced by a photonic crystal (19) having a regular array of pillars (20) which create a number effective diffraction gratings.

Abstract: An optical device is disclosed for expanding input light in two dimensions in an augmented reality display. The device comprises a waveguide (12) and three linear diffraction grat-ings H0, H1, H2. An incident beam from a projector illuminates an input grating H0 with polychromatic light, and the light is coupled into the waveguide (12). The other two gratings H1, H2 are overlaid on top of one another. Light can be diffracted by one grating H1 into a first diffracted order and towards the other grating H2 which can couple the light out of the waveguide (12) towards a viewer. In another arrangement the crossed gratings H1, H2 may be replaced by a photonic crystal (19) having a regular array of pillars (20) which create a number effective diffraction gratings.

Abstract: An optical device is disclosed for expanding input light in two dimensions in an augmented reality display. The device comprises a waveguide (12) and three linear diffraction gratings H0, H1, H2. An incident beam from a projector illuminates an input grating H0 with polychromatic light, and the light is coupled into the waveguide (12). The other two gratings H1, H2 are overlaid on top of one another. Light can be diffracted by one grating H1 into a first diffracted order and towards the other grating H2 which can couple the light out of the waveguide (12) towards a viewer. In another arrangement the crossed gratings H1, H2 may be replaced by a photonic crystal (19) having a regular array of pillars (20) which create a number effective diffraction gratings.

Abstract: An optical device is disclosed for expanding input light in two dimensions in an augmented reality display. The device comprises a waveguide (12) and three linear diffraction gratings H0, H1, H2. An incident beam from a projector illuminates an input grating H0 with polychromatic light, and the light is coupled into the waveguide (12). The other two gratings H1, H2 are overlaid on top of one another. Light can be diffracted by one grating H1 into a first diffracted order and towards the other grating H2 which can couple the light out of the waveguide (12) towards a viewer. In another arrangement the crossed gratings H1, H2 may be replaced by a photonic crystal (19) having a regular array of pillars (20) which create a number effective diffraction gratings.

Abstract: A display system is disclosed for use in an augmented reality display (30), the system comprises a waveguide (32) having a front surface and a rear surface. A front input projector (34) projects polychromatic light through a front surface, and a back input projector (36) projects polychro matic light through the rear surface. Input light impinges on an input grating (38) on a rear surface of the waveguide (32), and light travels through the waveguide by total internal reflection. An output grating (40) is provided for coupling light out of the waveguide. A plurality of front and back input projectors (34, 36) are provided in a staggered configuration along the width of the waveguide (32) and respective edges of adjacent front and back input projectors are aligned along the width of the waveguide to permit a continuous projection of light.

Abstract: An improved safety seat buckling system and method of using the same for facilitating placement of a person into a safety seat is disclosed. A series of slots or fasteners placed on the armrest of the safety seat are fitted to interface with the buckle male end portions of the harness assembly. By placing each buckle male end portion into the corresponding slot, placement of a person into the seat prior to securing the person into the seat becomes easier. Less time is required to secure the person into the safety seat, and the need for the person to lean forward while securing the person into the seat is eliminated.

Abstract: An improved safety seat buckling system and method of using the same for facilitating placement of a person into a safety seat is disclosed. A series of slots or fasteners placed on the armrest of the safety seat are fitted to interface with the buckle male end portions of the harness assembly. By placing each buckle male end portion into the corresponding slot, placement of a person into the seat prior to securing the person into the seat becomes easier. Less time is required to secure the person into the safety seat, and the need for the person to lean forward while securing the person into the seat is eliminated.

Abstract: A multi-die package has a plurality of leads and first and second semiconductor dies in superimposition and bonded together defining a die stack. The die stack has opposed first and second sides, with each of the first and second semiconductor dies having gate, drain and source regions, and gate, drain and source contacts. The first opposed side has the drain contact of the second semiconductor die, which is in electrical communication with a first set of the plurality of leads. The gate, drain and source contacts of the first semiconductor die and the gate and source contacts of the second semiconductor die are disposed on the second of said opposed sides and in electrical communication with a second set of the plurality of leads. The lead for the source of the first semiconductor die may be the same as the lead for the drain of the second semiconductor die.

Abstract: An improved child safety seat buckling system and method of using the same for facilitating placement of a child into a child safety seat is disclosed. A series of slots or fasteners placed on the lift bar or handle of the child seat are fitted to interface with buckle end portions of a harness assembly. By securing components of the harness assembly away from the seating area, placement of a child into the seat prior to securing the child into the seat becomes easier. Less time is required to secure the child into the safety seat, and the need for a parent to lean the child forward while securing the child into the seat is eliminated.

Abstract: A semiconductor die package is disclosed. It includes a leadframe structure comprising a first die attach pad and a second die attach pad. A plurality of leads extend from the first and second die attach pads. The plurality of leads includes at least a first control lead and a second control lead. A first semiconductor die including a first device is mounted on the first die attach pad, and a second semiconductor die has a second device is mounted on the second die attach pad. A housing is provided in the semiconductor die package and protects the first and second dies. The housing may have an exterior surface and at least partially covers the first semiconductor die and the second semiconductor die. The first control lead and the second control lead are at opposite sides of the semiconductor die package.

Abstract: A laryngoscope assembly with enhanced viewing capability including a laryngoscope handle having a permanently mounted laryngoscope optical system. The laryngoscope optical system has a view tube with a leading aperture lens for affording a field of view along a deflected line of sight viewing in an operative intubation position. The laryngoscope handle includes a laryngoscope optical system securing arrangement for mechanically securing the laryngoscope optical system in the operative intubation position. The laryngoscope assembly also includes an interchangeable laryngoscope blade including a trailing view tube sleeve for slidably mounting on the view tube and a leading spatula wherein the view tube sleeve has a leading transparent window for covering the aperture lens. The laryngoscope assembly further includes a blade securing arrangement for mechanically securing the laryngoscope blade on the laryngoscope handle in the operative intubation position.

Abstract: A multi-die package has a plurality of leads and first and second semiconductor dies in superimposition and bonded together defining a die stack. The die stack has opposed first and second sides, with each of the first and second semiconductor dies having gate, drain and source regions, and gate, drain and source contacts. The first opposed side has the drain contact of the second semiconductor die, which is in electrical communication with a first set of the plurality of leads. The gate, drain and source contacts of the first semiconductor die and the gate and source contacts of the second semiconductor die are disposed on the second of said opposed sides and in electrical communication with a second set of the plurality of leads. The lead for the source of the first semiconductor die may be the same as the lead for the drain of the second semiconductor die.

Abstract: A semiconductor die package is disclosed. It includes a leadframe structure comprising a first die attach pad and a second die attach pad. A plurality of leads extend from the first and second die attach pads. The plurality of leads includes at least a first control lead and a second control lead. A first semiconductor die including a first device is mounted on the first die attach pad, and a second semiconductor die has a second device is mounted on the second die attach pad. A housing is provided in the semiconductor die package and protects the first and second dies. The housing may have an exterior surface and at least partially covers the first semiconductor die and the second semiconductor die. The first control lead and the second control lead are at opposite sides of the semiconductor die package.

Abstract: A laryngoscope assembly with enhanced viewing capability including a laryngoscope handle having a permanently mounted laryngoscope optical system. The laryngoscope optical system has a view tube with a leading aperture lens for affording a field of view along a deflected line of sight viewing in an operative intubation position. The laryngoscope handle includes a laryngoscope optical system securing arrangement for mechanically securing the laryngoscope optical system in the operative intubation position. The laryngoscope assembly also includes an interchangeable laryngoscope blade including a trailing view tube sleeve for slidably mounting on the view tube and a leading spatula wherein the view tube sleeve has a leading transparent window for covering the aperture lens. The laryngoscope assembly further includes a blade securing arrangement for mechanically securing the laryngoscope blade on the laryngoscope handle in the operative intubation position.

Abstract: A semiconductor die package is disclosed. It includes a leadframe structure comprising a first die attach pad and a second die attach pad. A plurality of leads extend from the first and second die attach pads. The plurality of leads includes at least a first control lead and a second control lead. A first semiconductor die including a first device is mounted on the first die attach pad, and a second semiconductor die has a second device is mounted on the second die attach pad. A housing is provided in the semiconductor die package and protects the first and second dies. The housing may have an exterior surface and at least partially covers the first semiconductor die and the second semiconductor die. The first control lead and the second control lead are at opposite sides of the semiconductor die package.

Abstract: A multi-die package has a plurality of leads and first and second semiconductor dies in superimposition and bonded together defining a die stack. The die stack has opposed first and second sides, with each of the first and second semiconductor dies having gate, drain and source regions, and gate, drain and source contacts. The first opposed side has the drain contact of the second semiconductor die, which is in electrical communication with a first set of the plurality of leads. The gate, drain and source contacts of the first semiconductor die and the gate and source contacts of the second semiconductor die are disposed on the second of said opposed sides and in electrical communication with a second set of the plurality of leads. The lead for the source of the first semiconductor die may be the same as the lead for the drain of the second semiconductor die.