Haptic technology

About: Haptic technology is a research topic. Over the lifetime, 18818 publications have been published within this topic receiving 306713 citations. The topic is also known as: haptics & haptic media.

Haptic device with touch gesture interface

Abstract: A haptic device may allow a user to explore the tactile sensations associated with information being displayed on a display. This methodology can be referred to as a "hold-and-feel" mode. The user may first perform a gesture to inform the device to hold the display stationary, in order to explore the information, instead of scrolling or panning the information on the display. For example, to enter the "hold-and-feel" mode, a user may press one finger on the side of the screen to lock the information content with respect to the screen so that the display contents are no longer moved as the user slides another finger over the screen. In a haptic device that supports tactile sensory stimulation, this "hold-and-feel" mode allows the user to feel one or more objects or elements (e.g., a link or image) on the screen, for example, as variations of surface texture.

The use of Virtual Fixtures to Enhance Operator Performance in Time Delayed Teleoperation.

Abstract: : This report reviews the notion of virtual fixtures for force-reflecting telepresence systems that has been introduced in a previous report and describes an additional study which demonstrates that such fixtures can reduce performance degradation due to transmission time delay Real world tools and fixtures can enhance performance by guiding manual operations, providing localizing references, and reducing the mental processing required to perform a task Virtual fixtures are computer-generated precepts overlaid onto the force-reflecting master workspace that have been shown to provide similar benefits in teleoperation tasks without time delay Virtual fixtures are superimposed on top of the presentation of the remote site, completely independent of all sensory feedback from the remote worksite (and therefore unaffected by transmission delays) As a result, virtual fixtures act as high fidelity reference points overlaid on top of an otherwise time-distorted perceptual environment This study expands the testing of the virtual fixture concept by using simple combinations of haptic surfaces as perceptual overlays in a standardized peg-insertion task, with the goal of minimizing performance degradation due to time delay Six subjects were tested using a force-reflecting exoskeleton master device to control a slave robot arm with no time delay, 250 ms delay, and 450 ms delay A Fitts' law paradigm quantified operator performance for each of four fixture configurations Without the use of virtual fixtures, operator performance was reduced by 36% for the 250 ms delay and 44% for the 450 ms delay With the use of the most effective virtual fixtures tested, there was no measured performance degradation in the time-delayed teleoperation

Force Jacket: Pneumatically-Actuated Jacket for Embodied Haptic Experiences

Abstract: Immersive experiences seek to engage the full sensory system in ways that words, pictures, or touch alone cannot. With respect to the haptic system, however, physical feedback has been provided primarily with handheld tactile experiences or vibration-based designs, largely ignoring both pressure receptors and the full upper-body area as conduits for expressing meaning that is consistent with sight and sound. We extend the potential for immersion along these dimensions with the Force Jacket, a novel array of pneumatically-actuated airbags and force sensors that provide precisely directed force and high frequency vibrations to the upper body. We describe the pneumatic hardware and force control algorithms, user studies to verify perception of airbag location and pressure magnitude, and subsequent studies to define full-torso, pressure and vibration-based feel effects such as punch, hug, and snake moving across the body. We also discuss the use of those effects in prototype virtual reality applications.

Haptic phonemes: basic building blocks of haptic communication

Abstract: A haptic phoneme represents the smallest unit of a constructed haptic signal to which a meaning can be assigned. These haptic phonemes can be combined serially or in parallel to form haptic words, or haptic icons, which can hold more elaborate meanings for their users. Here, we use phonemes which consist of brief (

Method and apparatus for providing sight independent activity reports responsive to a touch gesture

Abstract: A method for providing sight independent activity reports responsive to a touch gesture may include receiving an indication of a pulse gesture being performed by at least two fingers with respect to a selectable item displayed at a touch screen display, determining a status with respect to activity associated with an application corresponding to the selectable item, and causing provision of haptic feedback to the at least two fingers based on the status. A corresponding apparatus and computer program product are also provided.