This disclosure relates to speakers and more specifically to an array speaker for distributing music uniformly across a room. A number of audio drivers can be radially distributed within a speaker housing so that an output of the drivers is distributed evenly throughout the room. In some embodiments, the exit geometry of the audio drivers can be configured to bounce off a surface supporting the array speaker to improve the distribution of music throughout the room. The array speaker can include a number of vibration isolation elements distributed within a housing of the array speaker. The vibration isolation elements can be configured reduce the strength of forces generated by a subwoofer of the array speaker.

Lightweight synthetic particles that replace traditional aggregates and methods of producing the same are disclosed herein.

An input device, comprising an input interface, an adjustable capacitor, a memory and a processor, wherein the input interface is abutted with the adjustable capacitors; the memory is electrically connected with the adjustable capacitor and the processor, respectively, the input interface is used for generating pressing signals after being physically pressed so as to change the capacitance of the adjustable capacitor, the adjustable capacitor is used for correspondingly responding to the pressing signals of the input interface and outputting the capacitance changing signals, the memory is used for receiving the capacitance changing signals of the adjustable capacitor and finding corresponding output signals from the look-up table pre-stored in the memory; and the processor is used for receiving the output signals of the memory and feeding back the first input signal or the second input signal..

A sensor is provided with a conductor layer, a sensor layer including a plurality of sensor units, and a separating layer which separates the conductor layer from the sensor layer, the sensor unit is formed of alternately arranged first and second electrode elements, and sensitivity on an outer periphery of the sensor unit is higher than the sensitivity in a central portion of the sensor unit.

Disclosed are keyboards and keyboard switches sensitive to touch, including, hover and pressure. The keyboard switches have transmit and receive antennae that are spaced apart such that no portion of the transmit antenna touches any portion of the receive antenna. The keyboard switches are arranged in logical rows and logical columns such that each of the keyboard switches is associated with one row and one column. Signal emitters are conductively coupled to the transmit antennae for each of the keyboard switches associated with each of the rows, and each of the signal emitters are adapted to cause each of the transmit antennae to transmit one or more source signals. Receivers are coupled to the receive antennae for each of the keyboard switches associated with each of the columns, and each of the receivers are adapted to capture a frame of signals present on the coupled receive antennae. A signal processor adapted to determine a measurement from each frame, corresponding to an amount of the source signals present on the receive antennae during a time the corresponding frame was received. The signal processor further adapted to determine a keyboard switch touch state from a range of touch states based at least in part on the corresponding measurement.

A display system has a flexible display screen which has a front side and a back side, and a plurality of haptic elements arranged in an array on the back side of the screen. The display system also has a controller board connected to the plurality of haptic elements and the flexible display screen. The controller board is configured to display a plurality of interactive buttons on the front side of the flexible display screen in locations corresponding to the plurality of haptic elements. The plurality of haptic elements are configured to provide haptic feedback based on touch input provided to the front side of the screen. The haptic feedback includes actuating a haptic element which corresponds to the location of an interactive button selected by the touch input.

A keyswitch includes a base having a pillar, a cap having a rib and movable relative to the base, a sleeve rotatably sleeving the pillar and having first and second top surfaces and convex and concave portions, an elastic member abutting against the sleeve and the base, and a resilient arm abutting against a first or second position on the convex portion with rotation of the sleeve. When the resilient arm abuts against the first position, the rib abuts against the first top surface to prepress the elastic member for generating a first preload. When the cap is pressed for moving the sleeve downward, the resilient arm moves from the first or second position to the concave portion. When the resilient arm abuts against the second position, the rib abuts against the second top surface to prepress the elastic member for generating a second preload larger than the first preload.

Controller devices can provide a user with multiple modes of operation. For example, the user can hold and operate the controller device in a first orientation for control of a first device and/or first mode of a device (e.g., media player), and the user can hold and operate the controller device in a second orientation for control of a second device and/or second mode of a device (e.g., gaming device). Features can be selectively stowed and deployed to facilitate user operation in the different modes. By further example, a controller device can be separated into segments to allow multiple users to hold and provide inputs with corresponding segments.

An optical keyboard includes an upper cover plate, a bottom plate, a circuit board and plural optical keys. The circuit board is arranged between the upper cover plate and the bottom plate. The circuit board is connected with the upper cover plate that is disposed on the circuit board. The plural keys are penetrated through corresponding openings of the upper cover plate. Moreover, a bottom surface of each optical key is contacted with a top surface of the circuit board. The upper cover plate is an integral structure. Consequently, the components of the optical keyboard are simplified, and the assembling precision is enhanced.

A key top including: a transparent substrate that includes a ceiling part, and a side wall part; a first layer having a chromatic color with transparency that is formed on a top face of the ceiling part and an outer wall of the side wall part or a bottom face of the ceiling part and an inner wall of the side wall part; and a second layer that is a whitish color, white, silver or gold, is formed on the first layer, and shields a light from a light source, a part of the second layer corresponding to a character part being removed; wherein a contrast ratio between colors of the first and the second layers at the time of non-lighting is 3:1 or more, and a luminance of the light passing through the character part at the time of lighting is 3 cd/cm.sup.2 or more.