INTERFACE APPARATUS FOR TOUCH INPUT AND TACTILE OUTPUT COMMUNICATION
3 Assignments
0 Petitions
Accused Products
Abstract
An interface apparatus (1600A) comprises a surface (1642) touchable by a finger (120). The surface has a touch-sensitive area with a predetermined position (1646), to which a function is assigned. The finger'"'"'s presence at the predetermined position (1646) is detected. An electrosensory stimulus is generated to the finger by applying an alternating electrical drive to one or more electrodes (1662). Each electrode is provided with an insulator, which prevents DC flow from the electrode to the finger and a capacitive coupling over the insulator is formed between the electrode (1662) and the finger (120). The capacitive coupling and electrical drive are dimensioned to produce an electrosensory sensation, independently of mechanical vibration of the electrode. The electrosensory stimulus is varied temporally based on the detected presence or absence of the of the finger (120) near the at least one touch-sensitive area having the predetermined position (1646).
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Citations
49 Claims
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1-13. -13. (canceled)
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14. Apparatus comprising:
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a touch surface configured to be touched by a body member; a detection circuitry configured to detect a presence or absence of the body member on the touch surface at a position on the touch surface; at least one electrode; a power source to provide power to the at least one electrode; an insulation layer to form at least part of a capacitive coupling between the at least one electrode and the body member to produce an electrosensory sensation to the body member, the insulation layer to inhibit a flow of direct current between the at least one electrode and the body member; and a controller configured to vary the power applied to the at least one electrode based on detection of the presence or the absence of the body member at the position so as to vary the electrosensory sensation. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45)
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46. A method of providing a tactile output on a touch sensitive display, the method comprising:
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detecting a presence or absence of a body member on a touch surface of the touch sensitive display at a position on the touch surface; providing power to at least one electrode to form a capacitive coupling between the at least one electrode and the body member, the capacitive coupling being provided at least in part by an insulation layer, the power being to provide an electrosensory stimulation to the body member, the insulation layer to inhibit a flow of direct current between the at least one electrode and the body member; and varying the power applied to the at least one electrode based on the detecting of the presence or the absence of the body member at the position so as to vary the electrosensory stimulation. - View Dependent Claims (47, 48)
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49. A non-transitory computer readable medium embodying instructions which, when executed by the machine cause the machine to perform the operations of:
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detecting the presence or absence of a body member on a touch surface of a touch sensitive display at a position on the touch surface; providing power to at least one electrode to form a capacitive coupling between the at least one electrode and the body member, the capacitive coupling being provided at least in part by an insulation layer, the power being to provide an electrosensory stimulation in the body member, the insulation layer to inhibit a flow of direct current between the electrode and the body member; and varying the power applied to the at least one electrode based on the detecting of the presence or the absence of the body member at the position so as to vary the electrosensory stimulation.
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Specification