Methods and apparatus to identify haptic vibrations of touchscreens are disclosed. Example apparatus disclosed herein obtain a haptic control signal that is to cause vibrations of a touchscreen to simulate a texture corresponding to visual subject matter to be displayed on the touchscreen, the vibrations of the touchscreen to produce an acoustically detectable signal. Disclosed example apparatus also encode a watermark into the haptic control signal to generate a watermarked haptic control signal, the watermark including identification information to identify at least one of the subject matter or the texture, the watermark to modify the acoustically detectable signal.

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

In exemplary implementations of this invention, a shape controller controls the shape of a bladder as the bladder inflates. The shape controller includes a first set of regions and a second set of regions. The second set of regions is more flexible than the first set of regions. The shape controller is embedded within, or adjacent to, a wall of the bladder. When the bladder is inflated, the overall shape of the bladder bends in areas adjacent to the more flexible regions of the shape controller. For example, the shape controller may comprise paper and the more flexible regions may comprise creases in the paper. Or, for example, the more flexible regions may comprise notches or indentations. In some implementations of this invention, a multi-state shape display changes shape as it inflates, with additional bumps forming as pressure in the display increases.

A tactile sense presentation device includes a panel that includes a support substrate, a plurality of electrodes, which are formed on the support substrate, extending in a predetermined direction, and an insulating layer covering the plurality of electrodes; and a drive unit that drives the panel, wherein a tactile sense is presented to an operator based on an electrostatic force generated between the electrodes and the operator by the drive unit applying a signal of a voltage to the electrode, a contact face of the insulating layer that is in contact with the operator has a surface roughness Ra of a predetermined range, and the voltage applied to the electrodes corresponding to an area in which the tactile sense is presented to the operator is a voltage corresponding to the surface roughness Ra of the contact face.

A surface structure for a touch panel display includes a glass layer having a first surface and a second surface. The first surface is on an interior side of the glass layer and the second surface is on an exterior side of the glass layer. The surface structure further includes a first protective layer formed to the first surface, and a second protective layer formed to the second surface. The second protective layer includes an array of bumps on an exterior side of the glass layer. The array of bumps provides a gradation of a refractive index of a material of the second protective layer.

A home device controller can include one or more touch grooves, a touch slider operatively coupled to each of the one or more touch grooves, and one or more processors. The processor(s) can receive signals from each touch sensor, each signal corresponding to a touch gesture performed by a user interacting with the one or more touch grooves. The processor(s) can generate control commands executable by a home device based at least in part on the signals, and transmit the control commands to the home device for execution.

An electronic communications method includes receiving, by a device, electronic information. The electronic communications method further includes receiving, by the device, additional electronic information. A time period between receiving the electronic information and the additional electronic information is less than another time period between receiving the electronic information and the additional electronic information by using a standard keyboard.

An acoustic field may be produced from a transducer array having known relative positions and orientations In this acoustic field, one or more control points may be defined. An amplitude may be assigned to the control point. Mid-air haptic effect for a virtual object on a human body part may be generated by moving the control point in a single closed curve comprising a plurality of curve segments. The single closed curve traverses at least one location where the human body part intersects with the virtual object. Additionally, a user may interact with virtual three-dimensional content using the user's hands while a tracking system monitoring the user's hands, a physics engine updates the properties of the virtual three-dimensional content and a haptic feedback system provides haptic information to the user.

A home device controller can include one or more touch grooves, a touch slider operatively coupled to each of the one or more touch grooves, and one or more processors. The processor(s) can receive signals from each touch sensor, each signal corresponding to a touch gesture performed by a user interacting with the one or more touch grooves. The processor(s) can generate control commands executable by a home device based at least in part on the signals, and transmit the control commands to the home device for execution.

Disclosed herein are single surface top covers for portable information handling systems, and that employ a substrate of thermoplastic fiberglass composite which is impregnated with polycarbonate material. The thermoplastic fiberglass composite material may be recyclable, and the thermoplastic fiberglass composite material may be impregnated with recycled polycarbonate material. A selective UV molding process may be employed to create multiple different finishes on the same upper surface of a single surface top cover by applying a nano coat of a textured UV light curable resin on at least a portion of the upper surface of a single surface top cover.