Provided is a method for controlling an interaction undo/redo interface. The method for controlling an interaction undo/redo interface includes causing interaction to be performed between a plurality of virtual objects created in a three-dimensional virtual space and a user, wherein the interaction is performed by recognition of the user's gesture, and activating the interaction undo interface or the interaction redo interface in response to a gesture not corresponding to the user's interaction gesture.

In some embodiments, a movement platform may be used to develop force models for the determination of movement based on force patterns received from the movement platform. A force model is made by comparing a known user movement to force readings recorded during the user movement. Movement platform force readings may be compared to a plurality of force models to determine a user movement. Once a matching force model is determined, the matching force model may be used to generate instructions for moving a user on the movement platform.

A pneumatically actuated computer input device comprises an input device circuit member having a hollow body, at least one switch member within the hollow body adapted to send electronic signals to a computer terminal, and a pneumatic actuator within the hollow body adapted to be inflated and press against and activate the at least one switch member. A pneumatic hose connected at a distal end to the pneumatic actuator and extending outward from the hollow body at a predetermined length and adapted to supply air thereto, and a foot pedal connected to the pneumatic hose at an opposite end from the distal end and adapted to control the air supply through the pneumatic hose and to the pneumatic actuator, such that when the foot pedal is pressed the pneumatic actuator is filled with air, expands, and presses against the at least one switch member which then sends an electronic signal to the computer terminal.

A foot-operated controller includes a base configured to rest on a floor surface, and a movable contact surface coupled to the base. The contact surface includes an anterior region to support a toe region and a posterior region to support a heel region, and is configured to roll about a roll axis in response to inversion or eversion of a foot engaged with the contact surface, pitch about a pitch axis in response to plantar flexion or dorsiflexion of the foot, and yaw about a yaw axis in response to abduction or adduction of the foot. The roll, pitch, and yaw axes intersect at a point superior to the contact surface, and may align with the operator's ankle.

A method is disclosed for foot sensors to be used to determine at least two characteristics of a subject's activity by using a combination of sensors for force and foot orientation/motion/position. A wearable footwear ecosystem is comprised of the subject's footwear, sensor-enabled insoles or insertable devices, in- or on-footwear electronics that is hard wired to the sensors and may contain additional sensors such as accelerometers, a master device and means to communicate (typically wirelessly) among the various sensor platforms, and the master device including clock synchronization. Correlating the time stamps for data among various sensors, and the master device communicating wirelessly is critical to accurate determination of the desired characteristics. Multiple force-sensitive resistors on a common substrate are individually optimized for dynamic range. Pulse sensors using arrays of such force-sensitive resistors are implemented. The resultant system can profitably be used for gaming, biometric monitoring, and activity tracking.

Methods and systems for providing computer implemented services using user input are disclosed. To obtain the user input, a human interface device may be used. Interpretation of actuation of the human interface device may be customized to the types of actuations that users are able to perform. To customize the types of the actuations, users may perform actuations of the human interface device for various types of user input to establish associations between the actuations and the user input. The associations may be used to train an inference model usable to identify user input based on performed actions of the human interface device.

An apparatus for creating movement in a virtual reality for a user includes a computer includes a virtual reality headset in communication with the computer that is worn on the head of the user so the user sees the virtual reality shown by the headset and produced by the computer in the headset. The apparatus includes a foot controller in communication with the computer against which the user moves at least one of his feet to create control signals with the foot to cause movement in the virtual reality. A method for creating movement in a virtual reality for a user having the steps of the user seeing the virtual reality shown by a virtual headset and produced by a computer in the headset, a virtual reality headset in communication with the computer that is worn on the head of the user. There is the step of the user moving at least one of his feet against a foot controller to create control signals with the foot to cause movement in the virtual reality by the computer, the foot controller in communication with the computer. A computer software program for creating movement in a virtual reality for a user.

A tracking system is disclosed. The tracking system comprises a head-mounted display (HMD) worn on a head of a user and configured to virtualize a body movement of the user in a virtual environment; and a plurality of sensors worn on feet of the user configured to determine body information of the user according to the body movement of the user, and transmit the determined body information to the HMD; wherein the HMD virtualizes the body movement of the user according to the determined body information; wherein the body information is related to a plurality of mutual relationships between the plurality of sensors and the HMD.

A method of operating a multi-device document viewer includes receiving a selection of two or more computing devices to be included in a selected group of computing devices that create the multi-device document viewer; assigning the two or more computing devices to the selected group; assigning a page offset value for each of the two or more computing devices in the selected group, the page offset value identifying an offset from a base page for each of the two or more computing devices; receiving a selection of a document to be viewed on the multi-device document viewer at one computing device of the two or more computing devices; and displaying pages of the selected document on the two or more computing devices corresponding based on the assigned page offset value for each of the two or more computing devices.

Disclosed embodiments integrate a camera into an intraoral mirror. Integrating a camera into an intraoral mirror provides an efficient way to record and display what is visible to the healthcare provider in the mirror.