Tactile presentation apparatus, tactile cell, and method for controlling tactile presentation apparatus
First Claim
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1. A tactile presentation apparatus, comprising:
- a plurality of tactile cells,wherein the number of the plurality of tactile cells is equal to the number of pixels of a depth image, andeach of the plurality of tactile cells implements depth information and texture information of the depth image and measures applied pressure information by using an embedded pressure sensor,wherein,each of the plurality of tactile cells includes;
a tactile reactor generating a magnetic force of an electromagnet according to a magnetic force control voltage depending on the depth information of the depth image,a tactile feeder that moves up or down according to the magnetic force, andan ultrasound vibration device that vibrates according to a vibration control voltage,wherein,the magnetic force control voltage is obtained based on a compensation voltage value corresponding to the depth information of the depth image, andthe vibration control voltage is obtained based on a compensation voltage value corresponding to the texture information of the depth image.
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Abstract
Disclosed is a tactile presentation apparatus including a plurality of tactile cells. Each of the plurality of tactile cells includes a supporter for shielding magnetic force, a tactile feeder moving up according to the magnetic force in the supporter, and an electromagnet generating magnetic force depending on depth information of a pixel. The tactile presentation apparatus includes a permanent magnet, a vibration device that vibrates according to texture information, and a pressure sensor measuring pressure applied to the tactile feeder.
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Citations
12 Claims
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1. A tactile presentation apparatus, comprising:
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a plurality of tactile cells, wherein the number of the plurality of tactile cells is equal to the number of pixels of a depth image, and each of the plurality of tactile cells implements depth information and texture information of the depth image and measures applied pressure information by using an embedded pressure sensor, wherein, each of the plurality of tactile cells includes; a tactile reactor generating a magnetic force of an electromagnet according to a magnetic force control voltage depending on the depth information of the depth image, a tactile feeder that moves up or down according to the magnetic force, and an ultrasound vibration device that vibrates according to a vibration control voltage, wherein, the magnetic force control voltage is obtained based on a compensation voltage value corresponding to the depth information of the depth image, and the vibration control voltage is obtained based on a compensation voltage value corresponding to the texture information of the depth image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for controlling a tactile presentation apparatus that comprises a plurality of tactile cells, wherein each of the plurality of tactile cells includes a tactile reactor, a tactile feeder, and an ultrasound vibration device, the method comprising:
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receiving information on the position, depth, and texture of each pixel of a depth image, wherein the number of pixels of the depth image is equal to the number of the plurality of tactile cells; measuring applied pressure information by using an embedded pressure sensor; generating a magnetic force control voltage according to the depth information of the depth image; generating a vibration control voltage according to the texture information of the depth image; generating, by the textile reactor, a magnetic force of an electromagnet of a tactile cell of the plurality of tactile cells according to a magnetic force control voltage; providing current to the electromagnet of the tactile cell of the plurality of tactile cells corresponding to the position information of the depth image through the magnetic force control voltage; actuating the tactile feeder to move up or down according to the magnetic force; and actuating the ultrasound vibration device to vibrate according to the vibration control voltage; wherein the magnetic force control voltage is obtained based on a compensation voltage value corresponding to the depth information of the depth image, and wherein the vibration control voltage is obtained based on a compensation voltage value corresponding to the texture information of the depth image. - View Dependent Claims (10, 11, 12)
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Specification