Abstract: This invention described a Spatial Recognition Device (SRD) based on a mounted high precision measurement sensor that enables the user to detect and navigate around objects and obstacles like traditional white cane would, but without contact, and also allow the user to identify the location and shape of objects to enable identifying such obstacles and objects. The device can also provide route guidance through a GPS and collision avoidance through onboard and/or cloud based or hybrid computational systems, accelerometers and other sensors. The device enables sensing ranges from approximately one inch to a maximum range dependent on the high precision measurement sensor used in the device. This device would not be mounted on a “white cane” or similar assistive device.

Abstract: A robotic manipulator is attachable to a proximal end of a medical instrument. A processor linked to the manipulator transmits control signals to the manipulator to cause the manipulator to displace the medical instrument to achieve a desired position and orientation of the medical instrument. A contact force sensor is disposed on the medical instrument and linked to the processor. The control signals are issued by the processor responsively to force indications received from the contact force sensor.

Abstract: A method includes converting an audio signal of a current time period to a frequency domain to produce a set of frequency coefficients. For each of the frequency coefficients, the method includes computing a gradient of that frequency coefficient's magnitude relative to a magnitude of the same frequency coefficient from a previous time period. The method then includes summing the gradients computed for the set of frequency coefficients to produce a sum value, and then generating a haptic signal based on the sum value.

Abstract: A computer-implemented method and system for recording, compiling and displaying user reviews of a consumable product. The method comprising providing a user display graph on a user device, the user display graph having an x-axis and a y-axis with a baseline extending from the y-axis along the x-axis wherein the x-axis is divided into a plurality of review categories, detecting a user input from an input device within the user display graph on the user device and tracking the movement of the user input on the user device along a path through the plurality of review categories. The method further comprises measuring a plurality of review points on the path wherein each of the plurality of review points is located within one of the plurality of review categories, displaying a profile line connecting the plurality of review points along the path, and displaying numerical values representing each of the plurality of review points within each of the plurality of review categories.

Abstract: A circuit for generating and detecting ultrasonic sensing signals is provided. A piezoelectric device having a transmitting electrode and a receiving electrode is coupled to a biasing-and-sampling sub-circuit configured to set different bias voltages to the receiving electrode. The piezoelectric device is configured to transmit an ultrasonic signal upon applying an exciting pulse signal to the transmitting electrode and alternatively to generate a voltage signal at the receiving electrode upon receiving an echo signal based on the ultrasonic signal. A signal-collecting sub-circuit is coupled to the receiving electrode to determine a first sampling voltage based on the voltage signal at the receiving electrode in a first sampling period and a second sampling voltage based on the voltage signal at the receiving electrode in a second sampling period. An output sub-circuit is coupled to the signal-collecting sub-circuit for outputting the first sampling voltage and the second sampling voltage at a same time.

Abstract: Aspects generally relate to an apparatus for authenticating a user. The apparatus can include a screen, and located under the screen are a plurality of fingerprint scanners, the plurality of fingerprint scanners corresponding to respective regions of the screen. An interface requests a location of the screen that an application uses for a fingerprint scan. A screen location touched by a user is identified, and based on the screen location touched by the user and the location of the screen that an application uses for a fingerprint scan, enabling fingerprint scanners covering the region of the location of the screen.

Abstract: A method comprises inputting an audio signal into a machine learning circuit to compress the audio signal into a sequence of actuator signals. The machine learning circuit being trained by: receiving a training set of acoustic signals and pre-processing the training set of acoustic signals into pre-processed audio data. The pre-processed audio data including at least a spectrogram. The training further includes training the machine learning circuit using the pre-processed audio data. The neural network has a cost function based on a reconstruction error and a plurality of constraints. The machine learning circuit generates a sequence of haptic cues corresponding to the audio input. The sequence of haptic cues is transmitted to a plurality of cutaneous actuators to generate a sequence of haptic outputs.

Abstract: The disclosed handheld controllers may include at least one finger force-feedback mechanism. The finger force-feedback mechanism may include a rotational element positioned to have an axis of rotation that is located along a palm side of a finger of an intended user's hand when holding the handheld controller, a proximal linkage element positioned and configured to rotate with the intended user's finger about the major knuckle when the user squeezes the handheld controller, and a distal linkage element positioned and configured to rotate relative to the proximal linkage element with the intended user's finger about the second knuckle when the user squeezes the handheld controller. Various other handheld controllers, artificial-reality systems, and methods are also disclosed.

Abstract: A system may include haptic output devices such as ultrasonic haptic output components that generate ultrasonic sound waves. The ultrasonic sound waves may be directed towards a user to provide haptic output. The haptic output devices may be used in a system that includes one or more electronic devices. Control circuitry may control the haptic output devices based on sensor data indicating where the user is located and/or based on what is being displayed for a user on a display. Ultrasonic haptic output may be used to simulate contact with a virtual object, to simulate rain, to simulate a breeze, and/or to simulate other sensations in a mixed reality or virtual reality environment. The ultrasonic haptic output components may be stand-alone devices or may be mounted in a head-mounted display, a gaming base station, a handheld controller, a finger-mounted device, or other electronic equipment.

Abstract: A method for actuating a motorized closure element arrangement of a motor vehicle, wherein the closure element arrangement comprises a closure element, a control arrangement and a sensor arrangement, wherein the sensor measurement values of the sensor arrangement are monitored by the control arrangement as to whether a triggering operating situation exists, which is defined by at least one operating situation condition, and wherein when the triggering operating situation is detected by the control arrangement actuation of the closure element arrangement is triggered. It is proposed that a portable haptic transducer is provided and that in at least one predetermined trigger state of the control arrangement haptic information associated with the trigger state is output by the transducer.

Abstract: A system may include a tactile device configured to receive a tactile signal and generate vibrations corresponding to a tactile audio experience based on the tactile signal. The system may also include a computing device configured to perform operations that include receiving an audio signal, and decomposing the audio signal to identify one or more components of the audio signal. The operations may also include generating, by an artificial intelligence system of the computing device, a generated tactile signal based on the one or more components of the audio signal. The operations may also include providing the generated tactile signal to the tactile device.

Abstract: A refreshable Braille display that connects to computers and serves as a computer monitor for sight impaired people. Integrated within the display are mechanical pins that are activated by either stationary or mobile actuators, such as coils or solenoids. These pins either move rotationally or vertically when activated by the actuators. Spacing of these pins is tight enough to display graphics. Additionally, the pins are arranged such that various heights of the pins enable 3D graphics.

Abstract: Augmented reality glasses are used, with a transducer array, to give images, produced by the glasses, a feel in midair. The glasses images can be shown as three-dimensional images, that are located in midair. The images are located near the transducer array. The array produces a touch feel in mid-air. The mid-air touch feel occupies the same space as the image. The feel gives the image a touch feel, when a user touches the image. The touch sense, can give the image a more real interaction when touched, such as, giving an image of a food item like a sandwich, a feel similar to a sandwich feel. The images with feel, allow for an immersive experience, within the augmented reality environment. The feel can move, when the image moves, such as, the user views an image, of another user's hand moving, and feels the movement of the hand.

Abstract: There is provided an information processing device to provide an information processing device, an information processing method, and a program that enable performing intuitive operations in regard to setting the sensory position of tactile stimulation. The information processing device includes a display control unit that displays information related to a tactile presentation device and displays a user-specified sensory position in the tactile presentation device; and a generating unit that, according to the sensory position and according to the positions of a plurality of tactile stimulation units disposed in the tactile presentation device, generates an output control signal to be output to the plurality of tactile stimulation units, so that tactile stimulation is sensed at the sensory position.

Abstract: The present disclosure provides systems and methods for using a linear resonant actuator (“LRA”) to determine a type of contact between a device and its surroundings. The LRA may be coupled to an amplifier by one or more switches. The audio amplifier may receive a signal from a microcontroller and transmit the signal the LRA when the switches are closed. When the switches are in an open position, the LRA may be actively sensing for the type of contact. The back EMF may be measured when the switches are open. The measured back EMF waveform may be used to determine the type of contact. When the signal is not being transmitted, the LRA may be passively sensing to determine whether the device was tapped.

Abstract: A unit and a tactile sensation providing apparatus which enable simplification of the assembly process of the apparatus are provided. The unit is provided with an actuator, a first fixing unit fixable to a base, a second fixing unit, and an elastic member configured to couple the first fixing unit and the second fixing unit together. The second fixing unit is fixable to a vibration object and coupled to the actuator.

Abstract: 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.

Abstract: The present disclosure relates to a reception apparatus and method, a transmission apparatus and method, and a program, capable of obtaining desired communication quality. Under the control of a central control unit, a tactile signal generation unit generates a tactile signal of a necessary number. Under the control of the central control unit, a header generation unit generates header information including the presence or absence of the tactile signal (that is, information indicating whether or not the tactile signal is to be used for each of vibration units as information associated with the vibration unit that uses the tactile signal), the delay amount, and the magnitude. A signal coupling unit adds header information to each of the tactile signals from the tactile signal generation unit, and performs time-division multiplexing on each of the tactile signals to which the header information has been added.

Abstract: Disclosed is a character and shape presentation device, more specifically, an electro-vibrating device including a zoned electro-vibrating panel. The electro-vibrating device includes a motor for generating rotational power; a rotation unit rotated by the rotational power generated by the motor and provided in shape of a cylinder; and an electro-vibrating panel anodized on a face of the rotation unit to provide different tactile sensation patterns to a user.

Abstract: In a haptic information presenting system, a haptic presenting device presents a stimulus by an object and/or to the object, controls the stimulus that is applied to the object in accordance with an operation by an operator, and thereby generates a tactile force, the haptic presenting device presents at least one of oscillation, displacement, and deformation to the object, the haptic presenting device is a sense synthesizing and guiding device that synthesizes sensations of guidance, and the sense synthesizing and guiding device generates at least one of a sensation of pressure, a sensation of a force, and the sensory illusion to the object by a vibration that includes a sweep vibration.

Abstract: An integrated pedestrian access system comprising of wireless push buttons adapted to transmit and receive wireless signals and receivers connected to pedestrian crosswalk signal systems, wherein said one or more receivers are configured to communicate with the wireless push buttons through wireless signals, communicate among the receivers, determine whether source device from which a request for registering a pedestrian signal is received through the said communication is the wireless push button or the receivers, determine status of pedestrian signal based on signals received from the pedestrian signal system, register request for pedestrian crosswalk signal if walk signal of the pedestrian signal is not on in the desired direction as per the status of pedestrian signal and provide acknowledgement corresponding to the status of pedestrian signal through the said source device.

Abstract: The present disclosure relates to an information processing apparatus, an information processing method, and a recording medium that allow tactile presentation corresponding to content to be assigned to a device. A control unit controls, on the basis of content information regarding content presented to a user and device information regarding a plurality of devices that the user is carrying, each device having a tactile presentation unit that presents a tactile sensation to the user, output of a tactile signal for causing at least one of the plurality of devices having the tactile presentation units to make the tactile presentation unit present a tactile sensation corresponding to the content. The present disclosure can be applied to, for example, a tactile presentation control device.

Abstract: The application describes systems for deriving haptic and audio drive signals from an input signal received via a single channel such as an audio channel.

Abstract: A phase computing device according to an embodiment of the present technology includes a coordinate determination unit and a computing unit. The coordinate determination unit determines space coordinates at which an interference pattern of wave motion emitted from a vibrator phased array is to be presented, the wave motion including ultrasonic waves, electromagnetic waves, or other waves. The computing unit calculates an initial phase of each vibrator, a sum of energy densities of the wave motion at respective points of the space coordinates being maximum in the initial phase.

Abstract: A control device for industrial machines having controlled motion drives for machine components has at least one control element configured to manually influence or specify adjustment movements of at least one machine component and is implemented as a rotary control element with a continuously rotatable actuating element connected in terms of motion to a rotational resistance generator that is variable under control or the actuating element can be connected in terms of motion thereto. The rotational resistance generator is drivable by an analysis and control device. The analysis and control device and the rotational resistance generator in this case are equipped to inhibit the rotational mobility of the actuating element, or to subject it to an increased rotational resistance haptically perceptible by an operator, as a function of machine states or events known to or sensed by the control device. In addition, a corresponding control method is specified.

Abstract: A conditions monitoring system may include a system controller. The controller may include a device processor and a non-transitory computer readable medium. The computer readable medium may include instructions executable by the device processor to perform the following steps: receiving positional data from a wearable device of a wearer; receiving physical data regarding the wearer from the wearable device; making a determination of a possible dangerous condition based on the data received from the wearable device; and providing instructions to the wearable device for the wearer to follow to avoid danger related to the dangerous condition.

Abstract: A vehicle is provided to include a bio-signal sensor that detects a bio-signal of a user, a display device that displays an image and a controller that determines at least one of a positivity of the user or change amount of the positivity of the user based on the detected bio-signal. The controller accumulates a positivity index when at least one of the positivity or change amount of the positivity is equal to or greater than a predetermined positivity or a predetermined change amount of the positivity and transmit a control signal to the display device to display the accumulated positivity index.

Abstract: Disclosed are a button sound-emitting apparatus and an electronic device. The button sound-emitting apparatus comprises a cap part, a exciter, and an elastic component; said elastic component is arranged at an edge of the cap part; said exciter is provided in the middle of the cap part; the elastic component is connected to a housing of the electronic device; the exciter is suspended in the housing; the elastic component is configured for providing an elastic restoring force; the exciter is configured to be used for providing a driving force. The button sound-emitting apparatus is simple in structure and eliminates the need to arrange a front acoustic cavity and a sound outlet hole, and ensures good sound performance.

Abstract: A fabric item may have control circuitry and input-output devices. A fabric haptic output device may be formed in the fabric item. The fabric haptic output device may be based on an electromagnetic fabric actuator, a piezoelectric fabric actuator, or other actuator formed from fabric. The fabric actuator may have a permanent magnet portion and an electromagnet portion. During operation, signals supplied to a coil in the electromagnet portion may create a magnetic field that moves the permanent magnet portion. Fabric support structures may be used to support an electromagnet or permanent magnet. Fabric springs may be coupled between the fabric support structures and the electromagnet or permanent magnet. The fabric of the support structures, magnetic structures, and springs may be incorporated into a wearable fabric structure, part of a cover or case for a device, a housing structure such as a housing wall, or other fabric structure.

Abstract: [Object] To prevent appropriately that a user perceives sound emitted by a tactile stimulus (second sound). [Solving Means] To provide an information processing device including a generation section that generates, on the basis of information regarding a first perception characteristic of a user with respect to a first sound emitted from an acoustic presentation section and information regarding a second perception characteristic of the user with respect to a second sound emitted by a tactile stimulus presented from a tactile data presentation section, tactile data to be used for presentation of the tactile stimulus of emitting the second sound that is not perceived by the user.

Abstract: A virtual reality input and haptic feedback system for sensing hand movements of a user, the system comprises a processing device, a wearable object to be worn on the hand of the user, a sensor system, a sensor, an electronic control device, and a feedback system. The feedback system comprises at least one fluidic actuation device, at least one expandable member, at least one movable valve, and a haptic feedback device. The haptic feedback device has a variable surface configured to simulate the softness or texture of a virtual surface.

Abstract: A system for preventing wandering of an individual includes: a wearable alert device worn by the individual and including a controller, an antenna in communication with the controller, an alert component in communication with the controller for providing an alert to the wearer of the alert device, and a power supply in communication with the controller; and at least one base unit including a controller, the at least one base unit in communication with the alert device. When the alert device is determined to be in an area of caution in relation to the at least one bas unit, an alert is generated on the alert device that is perceptible to the wearer of the bracelet, the alert including one or more of arrhythmic vibrations and audible sounds.

Abstract: There is provided a detection device, including: a non-contact sensor unit that detects a shape of a finger; and a mounting unit that mounts the non-contact sensor unit on a hand at a more distal position than a carpal area. Generation of occlusions may be prevented and operations that utilize a shape of user's fingers may be detected more reliably, while a mounted component and an operating procedure may also be simplified.

Abstract: Embodiments described herein relate to methods and apparatuses for providing a haptic output signal to a haptic actuator. A controller comprises an input configured to receive a force sensor signal from at least one force sensor; and a haptic output module configured to generate a haptic output signal for output to a haptic actuator; wherein the haptic output module is configured to: responsive to determining that the force sensor signal indicates that a force level applied to the at least one force sensor exceeds a first threshold, trigger output of the haptic output signal; and during output of the haptic output signal, adjust the haptic output signal based on the force sensor signal.

Abstract: According to embodiments described herein, there are provided methods and apparatus for providing a driving signal to a transducer, wherein the driving signal is output by an amplifier. A method comprises receiving an indication of a voltage and a current of the driving signal; based on an electrical model of the transducer and the voltage and the current of the driving signal, estimating an estimated electrical response of the transducer representative of movement of a mass in the transducer; comparing the estimated electrical response to a desired electrical response; and controlling the driving signal based on the comparison.

Abstract: An active matrix array of electroactive polymer actuators is provided, each electroactive polymer actuator having a switching arrangement. The switching arrangement comprises a first circuit (90) connected to a first terminal of the electroactive polymer actuator, for selectively driving the first terminal of the electroactive polymer actuator to ground or connecting it to an open circuit. A second circuit (92) is connected to a second terminal of the electroactive polymer actuator, for selectively driving the second terminal of the electroactive polymer actuator to ground or connecting it to an open circuit. Furthermore, a pull-up component (50) is permanently connected between a drive voltage and the first terminal of the electroactive polymer generator. By controlling both terminals of the electroactive polymer actuator, it is possible to reduce static power consumption, at least when no voltage is to be stored across the electroactive polymer actuator.

Abstract: An active matrix array of electroactive polymer actuators (36) is provided, each electroactive polymer actuator (36) having a switching arrangement (34). The switching arrangement comprises an input which is connected to a respective data line (30) and an output which is connected to a first terminal of the associated electroactive polymer actuator (36), wherein a second terminal of each electroactive polymer actuator is connected to a control line (110). A driver provides drive signals which comprise at least first and second drive levels for application to the data lines and third and fourth drive levels for application to the control line. Use is made of of common electrode driving (i.e. the control line driving) to enable low transistor control voltages to be used to switch larger voltages across the electroactive polymer actuators.

Abstract: A head-mountable display (HMD) for use with a processing device, the HMD comprising a display unit for displaying image content to the user, and a directional airflow unit operable to generate a directional airflow in accordance with control data corresponding to an appropriate airflow for content to be displayed on the HMD.

Abstract: Systems and methods are provided that relate to vibrational input elements configured to provide inputs to control an application executed by a mobile computing device. The vibrational input elements may produce distinct vibration patterns that are detectable by a sensor of the mobile computing device. The respective vibration patterns may correspond to one or more actions that may be performed in relation to the application.

Abstract: A haptic glove comprises a glove body including a glove digit corresponding to a phalange of a user hand with the glove digit having a bend location that is located along the glove digit. A haptic apparatus is coupled to the glove body at the bend location with the haptic apparatus comprising a plurality of sheets that are flexible and inextensible and a pressure actuator coupled to one or more of the plurality of sheets. The plurality of sheets are stacked and configured to translate relative to each other along the centerline with bending of the glove digit. The pressure actuator is configured to adjust an applied pressure to the plurality of sheets to adjust friction between the sheets. The adjustment of friction is proportional to a bending resistance of the glove digit.

Abstract: According to some aspects, a wearable device for estimating a location of the device within a space is provided, the device comprising a plurality of cameras mounted to a structure, at least a portion of the structure being adapted to facilitate a user wearing the device, the plurality of cameras having substantially fixed positions and orientations on the structure relative to each other, and at least one processor configured to receive image data from the plurality of cameras, perform feature detection on the image data to obtain a first plurality of features from the image data, and determine an estimate of the location of the device in the space based, at least in part, on a location associated with a second plurality of features obtained from image data previously captured of the space that matches the first plurality of features.

Abstract: A computer system associates one or more haptic feedbacks with one or more user activities. The computer system monitors current user activity on a computing device to determine whether the current user activity corresponds to at least one of the one or more user activities. In response to determining that the current user activity corresponds to a first user activity of the one or more user activities, the computer system causes a first haptic feedback of the one or more haptic feedbacks to be provided on the computing device, wherein the first haptic feedback is associated with the first user activity.

Abstract: The present invention provides a pseudo-force sense to the user without requiring the user holding onto an apparatus. The pseudo-force sense generation apparatus includes: a first contact member and a second contact member that are disposed along an outer peripheral surface of a mounting region, which is a three-dimensional region occupied by a body of the user; a joining member that joins the first contact member to the second contact member; and a vibration element that performs cyclic first asymmetric vibration along a line passing through a virtual point in the mounting region and the first contact member, and transfers a force in a direction along the line based on the first asymmetric vibration to the first contact member. The virtual point is disposed between the first contact member and the second contact member, and the is also transferred to the second contact member via the joining member.

Abstract: A system that determines a condition of wearing of a seat belt, including: a marker provided on at least a part of the seat belt; an image capture processing unit that emits electromagnetic waves of the prescribed wavelength band toward a predetermined range and that creates an image indicating intensity distribution of electromagnetic waves of the prescribed wavelength band, based on reflected waves reflected in the predetermined range; a shape estimating unit that estimates a shape of an occupant based on the image, detects the marker from the image, and estimates a shape of the seat belt based on the marker detected; and a determining unit that determines the condition of wearing of the seat belt by the occupant, based on a positional relationship between the occupant and the seat belt.

Abstract: A method for providing information to a user, the method including: receiving an input signal from a sensing device associated with a sensory modality of the user; generating a preprocessed signal upon preprocessing the input signal with a set of preprocessing operations; extracting a set of features from the preprocessed signal; processing the set of features with a neural network system; mapping outputs of the neural network system to a device domain associated with a device including a distribution of haptic actuators in proximity to the user; and at the distribution of haptic actuators, cooperatively producing a haptic output representative of at least a portion of the input signal, thereby providing information to the user.

Abstract: An artificial reality system includes a head mounted display (HMD) and a hand-held device. A virtual boundary can provide for user safety during an artificial reality session. For example, the virtual boundary may be defined to protect the user from collisions with physical objects, such as walls, furniture, or the like, while the user is immersed in the artificial reality session. The artificial reality system can constrain the predicted motion path of a portion of a user's body based on body configuration parameters and range of motion of the joints associated with the body portion. The artificial reality system can then use the constrained motion paths to determine whether or not the virtual boundary warning should be activated.

Abstract: Providing haptic feedback includes a first electrode, a second electrode, an electroactive polymer located between the first electrode and the second electrode such that when a voltage is applied between the electrodes, the electroactive polymer expands creating a force, and a haptic object to apply the force to create the haptic feedback, wherein the haptic object includes a base to receive the force from the electroactive polymer, and a vertex, opposite to and with a smaller surface area than the base, to apply localized haptic feedback to a user.

Abstract: Disclosed herein is a dynamically shapeable haptic interface, which can include a drive mechanism, a tactile mechanism, and a display. The display can emit light towards the drive mechanism in the form of image(s). The emitted light can activate a plurality of switches located between coil(s) included in the drive mechanism and the display. The plurality of switches, when activated, can allow current(s), supplied by a source, to pass through the coil(s). The current passing through the coils can create magnetic fields. The magnetic fields can collectively form a magnetic profile. The magnetic profile can cause the tactile mechanism to render shape(s) on the surface of the haptic interface. The tactile mechanism can include magnetic component(s), such as ferrous particles, magnets, and/or magnetic pins. The magnetic component(s) can move based on the magnetic profile and, along with one or more layers of material, can render the shape(s).

Abstract: A system that determines a condition of wearing of a seat belt, including: a marker provided on at least a part of the seat belt; an image capture processing unit that emits electromagnetic waves of the prescribed wavelength band toward a predetermined range and that creates an image indicating intensity distribution of electromagnetic waves of the prescribed wavelength band, based on reflected waves reflected in the predetermined range; a shape estimating unit that estimates a shape of an occupant based on the image, detects the marker from the image, and estimates a shape of the seat belt based on the marker detected; and a determining unit that determines the condition of wearing of the seat belt by the occupant, based on a positional relationship between the occupant and the seat belt.

Abstract: The present disclosure concerns an ultrasound system for providing tactile mid-air haptic feedback. As described herein, various embodiments of the invention can create a precise mid-air tactile sensation in mid-air on a body part of a user through use of an array of ultrasonic emitters. The array produces steerable focal points of ultrasonic energy that provide sufficient radiation pressure to be felt by the skin of the user. Such an implementation allows for multiple points of contact with immersive computing environments in a variety of form factors. This implementation, too, allows for coverage of larger distances and provides for a wider range of interactions thereby allowing a user to extend an appendage into a broader workspace while providing for multiple points of or comprehensive sensation or interaction without sacrificing user comfort with respect to any such interaction.