Abstract: A portable oxygen concentrator designed for medical use where the adsorbent beds, are designed to be replaced by a patient. The concentrator is designed so that the power supply and adsorbent bed mount is one module and the compressor and air filter are part of another module configured to provide a unitary cooling and air supply system. Replacement beds may be installed easily by patients, and all gas seals will function properly after installation.

Abstract: Aspects of the disclosure provide tracking tags. As an example, a tracking tag may include beacon transmission circuitry including one or more batteries, a frame configured to hold the one or more batteries in place, an adhesive arranged to secure the tracking tag to an object, and an activation mechanism configured to activate the tracking tag and cause the beacon transmission circuitry to transmit beacon signals in order to enable tracking of the object.

Abstract: Gaming systems, controllers, and associated methods are provided. An example bonus system for a gaming venue includes a memory storing layout data representative of a two-dimensional positional layout of a plurality of gaming devices within the gaming venue. The example bonus system includes a bonus controller arranged to: determine that a triggering event has occurred with respect to a triggering gaming device of the plurality of gaming devices; determine based on the layout data whether any eligible gaming devices of the plurality of gaming devices are within a defined physical proximity of the position of the triggering device within the two-dimensional positional layout; and make a bonus award in respect of each eligible gaming device.

Abstract: Gaming systems, controllers, and associated methods are provided. An example bonus system for a gaming venue includes a memory storing layout data representative of a two-dimensional positional layout of a plurality of gaming devices within the gaming venue. The example bonus system includes a bonus controller arranged to: determine that a triggering event has occurred with respect to a triggering gaming device of the plurality of gaming devices; determine based on the layout data whether any eligible gaming devices of the plurality of gaming devices are within a defined physical proximity of the position of the triggering device within the two-dimensional positional layout; and make a bonus award in respect of each eligible gaming device.

Abstract: An alphanumeric or shaped image laser display device and method for producing a segment of an alphanumeric display or shaped image comprising a semiconductor light source for producing a beam of light, the semiconductor light source disposed in a user defined pattern within a substrate and an optical element positioned in the path of said beam of light and converting an input beam projected from said semiconductor light source into an output beam projecting to a set of predefined positions that represent a segment of an alphanumeric display or shaped image.