An information reception device is provided with: operation surface which is adjusted to produce a characteristic index vibration by an object contact; a storage device stores candidate information (candidate information is related with the index vibration) which serves as a candidate of input information; a microphone which acquires observation information according to observation of the actual vibration arising in the surrounding environment; and a CPU. The CPU (selecting part) judges whether or not the index vibration exists in the observation information acquired. When the CPU judges that the index vibration exists, the CPU selects the candidate information which is related with the index vibration as the input information.

An ultrasonic fingerprint sensor apparatus is provided. The ultrasonic fingerprint sensor apparatus includes a base substrate; a first electrode layer on the base substrate, and including an array of a plurality of first electrodes spaced apart from each other by an inter-electrode region; a piezoelectric layer on a side of the first electrode layer away from the base substrate; a second electrode layer on a side of the piezoelectric layer away from the base substrate, and including one or more second electrodes; and a first reference electrode layer configured to provide a first reference voltage. An orthographic projection of the first electrode layer on the base substrate is substantially non-overlapping with an orthographic projection of the second electrode layer on the base substrate. The first electrode layer and the first reference electrode layer are between the base substrate and the piezoelectric layer.

An ultrasonic induction circuit is provided, a first electrode of an ultrasonic sensor is electrically connected with a first terminal of the ultrasonic sensing circuit, a second electrode is electrically connected with a second terminal of a first potential supply sub-circuit, and the first terminal of the first potential supply sub-circuit is electrically connected with a first potential supply end. A gate of M1 is electrically connected with the second electrode and the second terminal of the compensation sub-circuit. The second electrode is electrically connected with the first terminal of the compensation sub-circuit. The first electrode is coupled to the second potential supply end. The first terminal of the signal output sub-circuit is electrically connected to the second electrode of the first transistor, and the second terminal is electrically connected to the second terminal of the ultrasonic induction circuit.

An optical display, including a first waveguide having a first set of surfaces, an input grating, a fold grating, and an output grating; an image input image node assembly; and a prismatic relay optics is provided. The prismatic relay optics may be configured to be optomechanically connected to the waveguide and the input image node assembly. The optical display is may also be configured to operate alone or as integrated with a headpiece to be used as a HUD. The HUD may have a first and a second configuration wherein the waveguide is decoupled or coupled.

A portable information handling system commands a stylus to vibrate to aid in location of the stylus. The stylus vibrates at a frequency selected from a range of plural frequencies based upon a distance between the portable information handling system and stylus so that an audible noise is generated by the stylus with sufficient sound to be heard by a user of the portable information handling system while minimizing stylus power consumption. In one embodiment, a haptic film at the stylus exterior surface generates an ultrasonic noise detectable by a microphone of the portable information handling system for determining a vector to the stylus.

An ultrasonic fingerprint sensor apparatus is provided. The ultrasonic fingerprint sensor apparatus includes a base substrate; a first electrode layer on the base substrate, and including an array of a plurality of first electrodes spaced apart from each other by an inter-electrode region; a piezoelectric layer on a side of the first electrode layer away from the base substrate; a second electrode layer on a side of the piezoelectric layer away from the base substrate, and including one or more second electrodes; and a first reference electrode layer configured to provide a first reference voltage. An orthographic projection of the first electrode layer on the base substrate is substantially non-overlapping with an orthographic projection of the second electrode layer on the base substrate. The first electrode layer and the first reference electrode layer are between the base substrate and the piezoelectric layer.

A portable information handling system commands a stylus to vibrate to aid in location of the stylus. The stylus vibrates at a frequency selected from a range of plural frequencies based upon a distance between the portable information handling system and stylus so that an audible noise is generated by the stylus with sufficient sound to be heard by a user of the portable information handling system while minimizing stylus power consumption. In one embodiment, a haptic film at the stylus exterior surface generates an ultrasonic noise detectable by a microphone of the portable information handling system for determining a vector to the stylus.

A portable information handling system commands a stylus to vibrate to aid in location of the stylus. The stylus vibrates at a frequency selected from a range of plural frequencies based upon a distance between the portable information handling system and stylus so that an audible noise is generated by the stylus with sufficient sound to be heard by a user of the portable information handling system while minimizing stylus power consumption. In one embodiment, a haptic film at the stylus exterior surface and/or a speaker of information handling system generates an ultrasonic sound detectable by a microphone of the information handling system and/or the stylus for determining a distance between the information handling system and the stylus.

Content is projected onto the surface of water such that it can be viewed from either above or below the surface. Using distortion mapping, depth sensing, and de-noising, the image can remain unaffected by ripples and allow the user to interact within the body of liquid and/or use it as input. Liquids of different density can be layered on the surface to create different refraction planes. Water currents and jets can be used to actively reduce ripples from user interaction, as well as actively adding or removing liquid from the container to counteract displacement or create effect.

An apparatus classifies touch events. The apparatus includes a touch sensitive surface configured to generate a touch event when an object touches the touch sensitive surface. The touch event entails a mechanical vibration upon contact with the surface. The apparatus includes a touch event detector configured to detect the onset of a touch, and a touch event classifier configured to classify the touch event to identify the object used for the touch event. The mechanical vibration is created via any one of finger parts including a tip, a pad, a fingernail, and a knuckle, each of which has a unique feature different from each other.