An electronic device is provided. The electronic device includes a display and a processor, wherein the processor may be configured to confirm an air pointer initiation event of a stylus pen, display, on the display, an air pointer of the stylus pen on the basis of display rotation information and information of at least one application running on the electronic device, confirm, once a selection event is received from the stylus pen, first location information among a plurality of location information about the air pointer, calculated according to the motion of the selection event, confirm, on the basis of the information of the at least one application running on the electronic device, a function object set in an area of the display that comprises the first location information, and perform a function of the function object, corresponding to the selection event.

An electronic device is provided. The electronic device includes a display and a processor, wherein the processor may be configured to confirm an air pointer initiation event of a stylus pen, display, on the display, an air pointer of the stylus pen on the basis of display rotation information and information of at least one application running on the electronic device, confirm, once a selection event is received from the stylus pen, first location information among a plurality of location information about the air pointer, calculated according to the motion of the selection event, confirm, on the basis of the information of the at least one application running on the electronic device, a function object set in an area of the display that comprises the first location information, and perform a function of the function object, corresponding to the selection event.

This disclosure provides systems, methods, and apparatuses for a trackball including an adaptive brake. In an aspect, an apparatus includes a trackball, a wheel coupled to the trackball and configured to rotate about an axis, and a brake system configured to apply a braking force to the wheel. In some aspects, the brake system includes a magnetorheological fluid (MRF) brake, such as an MRF rotational brake. The MRF brake may be configured to apply a braking force to the wheel.

A method for operating an electronic device is provided. Aspects include configuring a touch slop corresponding to a reference for performing a scroll in response to detection of a first touch event and acquiring touch information corresponding to a current touch point every predetermined time while the first touch event is maintained. Based on a determination that a touch movement distance exceeds the touch slop, based on the acquired touch information, aspects include initiating a scroll for a first screen displayed on the display module. Aspects further include identifying scroll data comprising at least one of a movement speed, a movement distance, and deceleration of the first touch event, based on the touch information acquired while the scroll is performed and determining whether to end the scroll, based on the scroll data to control a state of the scroll for the first screen.

A touch input device includes a communication module receiving external light characteristic information. A code detector emits infrared light and receives infrared light reflected from a display panel to detect code patterns of the display panel. A light emitting driver controls an infrared light emission operation of the code detector. A code processor modulates an emission control signal so that an infrared light emission characteristic of the code detector is changed according to a change in the external light characteristic information and controls driving of the light emitting driver.

A system for promoting user manipulation of pointing device while operating keyboard is provided. The system comprises a computer, a USB device coupled to the computer, and a handheld wireless pointing device with a first surface positioned against a palm of a user's hand. The device receives tactile contact from a thumb of the hand on a touchpad on a second surface, the second surface opposite the first surface and facing away from the palm. The device also measures movement of the thumb on the second surface and transmits messaging to the USB regarding the measured movement. The USB, based on the received messaging, directs movement of a cursor on a display of the computer. The movement of the cursor is aligned with the movement of the thumb. The device receives attachment to the hand via loops attached to user index and middle fingers.

A touchpad module includes a touch member, a bracket, a piezoelectric vibration unit and an elastic element. The bracket is located under the touch member. A portion of the touch member is exposed to a first perforation of the bracket. The piezoelectric vibration unit is aligned with the first perforation of the bracket. The piezoelectric vibration unit has a first surface and a second surface, which are opposed to each other. The elastic element installed on the bracket and contacted with the second surface of the piezoelectric vibration unit. When the piezoelectric vibration unit vibrates, a first reaction force is generated between the first surface of the piezoelectric vibration unit and the portion of the touch member exposed to the first perforation, and a second reaction force is generated between the second surface of the piezoelectric vibration unit and the elastic element.

A method for generating a special effect prop includes displaying a special effect prop editing page and acquiring a first image, where the special effect prop editing page is provided with a flow information display region and an effect display region, where the flow information display region is used for displaying flow information of a prop to be edited, and the effect display region is used for displaying a second image, where the second image is a preview image obtained by processing the first image according to the flow information; in response to an editing operation, editing the flow information and updating the second image; and in response to a special effect prop generation operation, generating a target special effect prop according to edited target prop flow information.

A surgical system including a surgical instrument having a shaft, an image sensor positioned at a distal end of the shaft, the image sensor being configured to capture images of a target object of a living object, and a control grip is arranged at a proximal end of the shaft. The surgical system further including a monitor for displaying the images and a controller configured to display a virtual target object model image of the target object on the monitor. Where the control grip is configured to position the virtual target object model image displayed on the monitor at a determined position and rotate the virtual target object model image displayed on the monitor at the determined position.

A device for online gaming includes an actuation component and a controller communicatively coupled to a computer system. The controller is configured to perform operations including detecting an actuation of the actuation component, wherein the actuation component is associated with performing of an action in a video game executed by the computer system. Responsive to detecting the actuation, an instruction is provided to the computer system to perform the action, wherein, based on a current value of a timer, the computer system restricts the action from being performed. The timer, having been previously initiated based on a prior actuation of the actuation component, relates to a cooldown period during which the action cannot be repeated after the action is performed. Responsive to receiving a command from the computer system, a tactile effect is generated as an indication to a user that the action can be repeated.