Haptic overlay device for flat panel touch displays

Wang, D.; Tuer, K.; Rossi, Marcia; Shu, Joseph

doi:10.1109/haptic.2004.1287208

Cited by 25 publications

(14 citation statements)

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“…Another interesting example is the friction compensation for a haptic device that has a considerable amount of friction. A certain amount of force is applied in the same direction of the user movement to compensate the haptic device friction [8]. In all these applications, unlike in previous research with the haptic display of stationary rigid objects, here the motion of a user's hand is important.…”

Section: Introductionmentioning

confidence: 99%

Perception-based lossy haptic compression considerations for velocity-based interactions

2007

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The ability of technology to transmit multi-media is very dependent on compression techniques. In particular, lossy compression has been used in image compression (jpeg), audio compression (mp3) and video compression (mpg) to allow the transmission of audio and video over broadband network connections. Recently, the sense of touch, or haptics, is becoming more important, with its addition in computer games or in cruder applications such as vibrations in a cell phone. As haptic technology improves, the ability to transmit compressed force sensations becomes more critical. Most lossy audio and visual compression techniques rely on the lack of sensitivity in humans to pick up detailed information in certain scenarios. Similarly, limitations in the sensitivity of human touch could be exploited to create haptic models with much less detail and thus requiring smaller bandwidth. The focus of this paper is on the force thresholds of the human haptic system that can be used in a psychophysically motivated lossy haptic (force) compression technique. Most of the research in this field has measured the just noticeable difference (JND) of the human haptic system with a human user in static interaction with a stationary rigid object. In this paper, our focus involves cases where the human user or the object are in relative motion. An example of such an

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Section: Introductionmentioning

confidence: 99%

Perception-based lossy haptic compression considerations for velocity-based interactions

2007

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“…While physically changing the shape of the surface does allow for both of these cues, Roblesde-la-Torre and Hayward proved that force cues alone are enough to overcome the perception of shape [6]. While this and other work was with kinesthetic displays [7], the idea has since been applied to several surface displays [8,9]. The ActivePaD joins these displays in the use of friction to create lateral force.…”

Section: Introductionmentioning

confidence: 99%

ActivePaD surface haptic device

Mullenbach¹,

Johnson

Colgate³

et al. 2012

2012 IEEE Haptics Symposium (HAPTICS)

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We present a new surface haptic interface that combines a variable friction device (the Large Area TPaD) with an impedance controlled planar mechanism. This device configuration is novel because it allows control of the frictional force in the static friction regime, control of the direction of force in the kinetic friction regime, as well as a degree of control over the transition between the two regimes. The range of operating modes combined with a large force capability make the device an appropriate platform for exploring surface haptic control algorithms. The design of the system is explained, two major categories of control algorithm are introduced, and the implementation of a virtual dimple is discussed. Experimental data are used to compare a virtual dimple to its physical analog, and to reveal areas for improvement.

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“…For example, the keyboard is too cumbersome to be used while on the move and requires training to get used to, while the mouse requires a surface to operate on. A touch panel suffers from none of these inconveniences, but its working space is limited to within a typically small area of the panel [2]. A virtual keyboard needs a plane for placing the user's hands, which has to remain fixed during operation [3].…”

Section: Introductionmentioning

confidence: 99%