A keyboard includes a base plate, a pressure sensing layer, a first key structure and a second key structure. The pressure sensing layer includes plural pressure sensing regions. Each of the first key structure and the second key structure corresponds to a pressure sensing region. Moreover, the first key structure and the second key structure are located over the corresponding pressure sensing regions. In response to different magnitudes of the depressing force, the corresponding pressure sensing regions are pushed by the first key structure and the second key structure. Consequently, the corresponding pressure sensing regions generate different pressure sensing signals. The pressure sensing layer can replace plural pressure sensing element. Consequently, the assembling process is simplified, and the assembling cost is reduced.

A dome switch utilized in a keyboard assembly is disclosed. The keyboard assembly may include a printed circuit board having a first electrical connector formed in the printed circuit board, and a second electrical connector formed in the printed circuit board adjacent the first electrical connector. The keyboard assembly may also include an inner contact component contacting the second electrical connector of the printed circuit board. The inner contact component may be in electrical communication with the second electrical connector of the printed circuit board. Additionally, the keyboard assembly can include a dome switch surrounding the inner contact component. The dome switch may contact and may be in electrical communication with the first electrical connector of the printed circuit board.

A key structure includes a first movable plate, a second movable plate, a keycap, a first linkage lever and a second linkage lever. The second movable plate is disposed over the first movable plate. The keycap is disposed over the second movable plate. The first linkage lever is connected with the keycap and the first movable plate. The second linkage lever is connected with the keycap and the second movable plate. While the first movable plate is moved in a first direction and the second movable plate is moved in a second direction, the first linkage lever and the second linkage lever are moved in different directions, so that a height of the keycap is reduced.

An input device for use with a first electronic device and a second electronic device includes a frame, a plurality of manually depressible input members supported by the frame, a communication module supported by the frame and operable to selectively communicate with the first electronic device and the second electronic device, and a switch supported by the frame and coupled to the communication module. The switch is operable to change whether the communication module communicates with the first electronic device or the second electronic device. The input device also includes a light source coupled to the switch and positioned at least partially within the frame. The light source is operable to provide a backlight for the plurality of input members. The backlight is modified in response to actuation of the switch.

A surgical device comprising: (a) one or more functional elements, and (b) a selector assembly including: (i) one or more activation buttons, (ii) one or more circuit board switches, and (iii) a shuttle in communication with the circuit board switches or the one or more activation buttons to move the circuit board switches or the activation buttons between at least a first position and a second position so that the circuit board switches or the activation buttons are moveable relative to each other; wherein the one or more functional elements provide a first function when the circuit board switches or the one or more activation buttons are in the first position, and the one or more functional elements provide a second function when the circuit board switches or the one or more activation buttons are in the second position.

A keyboard device includes a base plate, a circuit board and plural keys. The base plate includes plural fixing parts. Each of the plural fixing parts includes two extension structures, an opening and a guiding slot. Each key includes a keycap and a metallic elastic element. The keycap includes plural positioning parts. The base plate includes plural fixing parts. The plural positioning parts are connected with the plural fixing parts, respectively. Each positioning part includes a positioning bulge. The positioning bulge is introduced into the guiding slot of the fixing part through the opening of the fixing part, so that the keycap is fixed on the base plate. When the keycap is depressed, the positioning bulge of the positioning part is moved downwardly within the guiding slot, so that the keycap is moved toward the base plate.

An illuminated glass keycap having a glyph diffuser layer that may diffuse light through a glyph window opened in a background layer. The background layer may be opaque and the glyph window may be transparent. The keycap is adhered to a scissor mechanism positioned above electrical switch circuitry. Included within, below, or adjacent to the scissor mechanism may be one or more light sources positioned to emit light through the keycap, around the perimeter of the keycap, and/or through the background layer.

A control switch includes a key, a housing structure, in the upper portion of which the key is secured in a manner such that the key can rotate about a first fulcrum. A tip is secured at one end to the key and moving integrally therewith, so as to slide along a first axis (X) of the key is countered by an elastic element. A printed circuit board includes at least two push-buttons, arranged in the lower portion of the housing structure. The housing structure includes in its internal portion, a flared structure having two inclined contact planes specularly opposite with respect to a second vertical axis (Z) and forming a first obtuse angle (a), on which the tip can slide along its stroke. The flared structure is structurally secured to the housing structure. The switch includes at least one actuator positioned in proximity to the flared structure.

A multi-illuminated pushbutton, including a substrate having a switch and a button cap. A lighting board may be affixed to the substrate, the lighting board having a first light source, a second light source, and a through channel disposed between the first light source and the second light source. The button cap can have a first window for transmission of light from the first light source, a second window for transmission of light from the second light source, and a button base disposed through the channel of the lighting board and in operable relation with the switch. The button base can be shaped to prevent substantially all light emitted from the first light source from transmission through the second window and prevents substantially all light emitted from the second light source from transmission through the first window.

A switch for controlling a control circuit or an operating current of electric-motors in linear gear drives includes: a switch casing, having at least an upper part including keys, and a lower part for forming a receiving space; a circuit board incorporated in the receiving space with microswitches including a switch casing and a spring-biased push-rod therein; wherein, when the keys are actuated by a user, the push rod actuates the micro-switch to control a control circuit or operating current, and wherein the switch contains at least one locking element, transferable between a locking position, which locks the keys, and a release position, which releases the keys. To prevent damage to a switch from pressure forces during actuation, the locking device is formed such that the pressure applied to the key is transferred onto the switch casing and/or the circuit board plate over as wide an area as possible.