Systems and methods for enabling a Graphical User Interface (GUI) manipulation using hand gestures over a hovering keyboard are described. In some embodiments, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution by the processor, cause the IHS to: detect a hand gesture using proximity sensors disposed on a hovering keyboard coupled to the IHS, and manipulate a task map rendered on a display coupled to the IHS in response to the detection.

A key structure including a keycap, a bottom plate, a supporting element disposed on the bottom plate a backlight module, and a thin film circuit board is provided. The bottom plate includes a body and a plurality of protrusions, wherein the body has a plurality of openings, and the protrusions protrude from a first surface of the body and are disposed around the openings. At least two of the protrusions have different heights. The backlight module is disposed on a second surface of the body, wherein the first surface and the second surface are opposite surfaces. The thin film circuit board and the keycap are disposed on the first surface of the body, and the thin film circuit board is located between the keycap and the bottom plate, and the protrusions are located within an orthographic projection range of the keycap and do not contact the supporting element.

Embodiments of the present disclosure disclose a method for improving a performance of a pulsed-ultraviolet (PUV) device. The method includes monitoring an input current across a circuit breaker in communication with a UV lamp, where the input current is delivered by a power signal and is interrupted by the circuit breaker upon exceeding a predefined cut-off current; generating a pulse signal having a set of frequencies based on the power signal for driving the UV lamp, where the pulse signal is associated with a predetermined cut-off frequency that increases the input current beyond the cut-off current; determining a predefined threshold current less than the cut-off current; and configuring the pulse signal with multiple distinct pulse frequencies per second for a predefined configuration period based on the input current exceeding the threshold current. The distinct pulse frequencies per second include at least one pulse frequency greater than the cut-off frequency.

A luminous keycap includes a base made of a light-transmitting material and a transparent cover, wherein the base is provided with a first light-shielding layer and the top surface thereof is provided with a first light-transmitting area, and the inner surface of the cover is provided with a second light-shielding layer. The surface of the second light-shielding layer directly opposite to the first light-transmitting area is engraved with a second light-transmitting area. The cover is correspondingly fixed onto the base. The method of manufacturing the same is also described. The keycap and the manufacturing method thereof achieve the goal that its user can accurately and swiftly use the keyboard in a dark environment. It solves the problem that the user often touches characters and/or patterns so often that they are worn away. It has a better touch, and the keycaps have a longer lifetime.

An illuminated pushbutton for a pushbutton switch having a light transmitting pushbutton and an indicia cover that is attached to a front end of the light transmitting pushbutton. The indicia cover has non-light transmitting regions and light transmitting regions on its front surface, wherein the light transmitting regions provide visible, light-transmitted indicia on the light transmitting pushbutton. The indicia cover has an adhesive on its rear surface to attach the indicia cover to the front end of the light transmitting pushbutton. An LED in the pushbutton switch is constructed to transmit light to the indicia cover. The light passes through the light transmitting regions (symbols and letters) but not through the non-light transmitting regions. As the light passes through the light transmitting symbols and letters, the symbols and letters are lighted and visible in the dark.

A device may include a display portion that includes a display housing and a display at least partially within the display housing. The device may also include a base portion pivotally coupled to the display portion and including a bottom case, a top case coupled to the bottom case and defining an array of raised key regions, and a sensing system below the top case and configured to detect an input applied to a raised key region of the array of raised key regions.

The invention provides an input device, including: a substrate, including at least one connecting portion and at least one limiting portion; at least one key, including at least one first engagement portion and at least one second engagement portion located on two opposite sides, where the first engagement portion is in contact with the connecting portion, so that the key can rotate relative to the substrate by taking the connecting portion as a rotation center, and the second engagement portion faces the limiting portion and is spaced apart from the limiting portion; and a buffer unit, disposed on at least one of two surfaces of the limiting portion and the second engagement portion facing each other. By disposing the buffer unit, noise generated due to the collision between the second engagement portion and the limiting portion can be decreased.

The invention provides an input device including a holder, a first wheel, a slider, and a first pressure part. The first wheel is disposed on the holder, and includes a side surface, a circle center, and a segment adjusting structure. The segment adjusting structure is disposed on the side surface in a manner of surrounding the circle center. The slider is disposed on the holder, and is movable relative to the holder to move toward or away from the circle center. The first pressure part includes two first ends. One of the first ends is connected to the slider, and as the slider moves toward or away from the circle center, interference between the other first end and the segment adjusting structure is increased or reduced.

The present invention provides a touch device, including a cover plate, a circuit board, a bracket, and a noise reduction layer group. The circuit board is fixed below the cover plate. The circuit board is provided with a trigger zone located on a bottom surface, and includes an elastic sheet located in the trigger zone. The bracket is disposed below the circuit board. The noise reduction layer group is disposed between the bracket and the elastic sheet.

The present invention provides a touch control device, including a cover plate, a circuit board, an elastic sheet body and a bracket. The circuit board is fixedly arranged below the cover plate. The circuit board is provided with a triggering region located on a bottom surface. The elastic sheet body is arranged under the circuit board and corresponds to the triggering region. The bracket is disposed below the circuit board. The bracket is provided with a first side and a second side which are opposite and a middle region located on the second side and further comprises two cantilevers which are located at both sides of the middle region of the second side and extend towards opposite directions. The elastic sheet body is in contact with the middle region. The end of each cantilever is provided with an abutting-joint structure and is in contact with the circuit board by the abutting-joint structure.