Abstract:
A touch screen system, including a near-infrared transparent screen including a plurality of reflective elements embedded therein, a circuit board including circuitry for controlled selective activation of electronic components connected thereto, at least one light source connected to the circuit board, for emitting light, and at least one light detector connected to the circuit board, for detecting light emitted by the at least one light source and reflected by the reflective elements.
Abstract:
A pressure-sensitive touch screen including a housing, at least one light receiver rigidly mounted in the housing, a display flexibly mounted in the housing substantially above the at least one receiver, which depresses in response to pressure of a touch, and a calculating unit connected to the at least one light receiver for receiving outputs indicating amounts of received light by the at least one receiver, and for determining that the display is being depressed based on an increase in an output of the at least one receiver.
Abstract:
A controller including a chip package coupled with a light-based touch screen, emitter driver circuitry inside the chip package for selectively activating photoemitters that are outside of the chip package, detector driver circuitry inside the chip package for selectively activating photo detectors that are outside of the chip package, detector signal processing circuitry for generating detection signals representing amounts of light detected on the photo detectors, signal conducting pins for connecting the photoemitters to the emitter driver circuitry, signal conducting pins for connecting the photo detectors to the detector driver circuitry and to the detector signal processing circuitry, controller circuitry inside the chip package for controlling the emitter driver circuitry and the detector driver circuitry, and at least one input/output pin for outputting the detection signals to a host processor, for the host processor to identify one or more locations on the touch screen that are being touched.
Abstract:
A DC switching device including a plurality of arc-extinguishing chambers and a plurality of contacting units conductively connected in series to each other, each of the contacting units including a stationary contact and a movable contact movable between a rest position and a working position, an air gap is formed between the contacts when the movable contact is moved from the working position to the rest position and each of the chambers enclosing a contacting unit and including a splitter plate unit including one or more splitter plates arranged for splitting and cooling an arc occurring in the air gap between the contacts. The chambers include a permanent magnet for generating a magnetic field between the contacting unit and the splitter plate unit and the splitter plates are made of non-ferromagnetic material, and the splitter plates of the chambers are made of ferromagnetic material.
Abstract:
A light-based finger gesture user interface for an electronic device including a housing for an electronic device, a display mounted in the housing, a cavity, separated from the display, penetrating two opposite sides of the housing, a detector mounted in the housing operative to detect an object inserted in the cavity, and a processor connected to the detector and to the display for causing the display to render a visual representation in response to output from the detector.
Abstract:
A light-based finger gesture user interface for an electronic device including a housing for an electronic device, a display mounted in the housing, a cavity, separated from the display, penetrating two opposite sides of the housing, a detector mounted in the housing operative to detect an object inserted in the cavity, and a processor connected to the detector and to the display for causing the display to render a visual representation in response to output from the detector.
Abstract:
A combination of a dental restoration and a plurality of attachment members is disclosed. The dental restoration includes a plurality of support members configured to be releasably attached to an attachment member. Each attachment member includes a first support surface facing in the coronal direction of the attachment member for supporting a corresponding support member, and a second support surface facing in the apical direction of the attachment member and towards the longitudinal axis of the support member and being configured for engagement with a support surface of a dental fixture. Each attachment member includes an attachment portion at a coronal portion for receiving a fastening member for releasably attaching one of the support members. The first support surface has an angle relative the longitudinal axis of the attachment member measured from its apical towards its coronal end that is larger than a corresponding angle of the second support surface.
Abstract:
A touch screen including a housing, a display mounted in the housing, a plurality of collimating lenses mounted in the housing and arranged along a first edge of the display, a plurality of light pulse emitters mounted in the housing that are spaced apart from and serially transmit light pulses through the collimating lenses over the display, a light guide mounted in the housing along the edge of the display opposite the first edge, for receiving the light pulses, the light guide including a reflective strip that reflects light pulses to one end of the light guide, a light pulse receiver mounted in the housing near the one end of the light guide, for receiving the reflected light pulses, and a calculating unit, mounted in the housing and connected to the receiver, for determining a location of a pointer on the display that partially blocks light pulses transmitted by the emitters, based on outputs of the receiver.
Abstract:
An arc detector for detecting undesired arcs. The arc detector includes: an antenna for receiving an electromagnetic signal representing an arc; and a discriminator for analysing a signal from the antenna, the discriminator including a spectrum analyser arranged to detect whether the signal represents a normal arc or an undesired arc. The discriminator is arranged to detect whether the signal represents a normal arc or an undesired arc by comparing signal levels at frequencies of a spectrum of the signal corresponding to at least one partial reference spectrum, and determining the arc to be a normal arc if a deviation from the reference spectrum is less than a threshold deviation. A corresponding method is also presented.