Touch-based input device

A technology of input devices and contact points, applied in the direction of measuring devices, data processing input/output process, instruments, etc., can solve the problems of large devices, inapplicable touch-based input devices, and not easy to carry

Pending Publication Date: 2020-05-01
斯特凡TTO有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, such devices are usually large and therefore not easily portable
Smaller touch-based input devices are not suitable for some applications, such as collaborative work between multiple users

Method used

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Examples

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Embodiment Construction

[0103] figure 1The optical vibration sensor 2 installed in the input device 4 according to the first embodiment of the present invention is shown. The optical vibration sensor 2 is fabricated using standard microelectromechanical systems (MEMS) technology. The optical vibration sensor 2 is installed in a sensor housing 6 having an opening 8 at its lower end. The optical vibration sensor 2 includes a laser diode 10 , a photodetector 12 and a diffraction grating 14 installed in a housing 6 .

[0104] The input device 4 includes a main housing 16 comprising an outer housing portion 18 and an inner housing portion 20 . The inner housing part 20 is made of foam to dampen the transmission of vibrations. The sensor housing 6 is made of a relatively dense material such as stainless steel. The outer housing portion 18 is provided with a peripheral grommet 22 on which the input device 4 rests when the input device 4 is placed on the table surface 24 . A reflective mat 26 is dispose...

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Abstract

An input device (4) comprises a plurality of optical vibration sensors (2) mounted in a common housing. Each optical vibration sensor (2) comprises a diffractive optical element (14); a light source (10) arranged to illuminate the diffractive optical element (10) such that a first portion of light (32) passes through the diffractive optical element (14) and a second portion of light (30) is reflected from the diffractive optical element (14); and a photo detector (12) arranged to detect an interference pattern generated by said first and second portions of light (10, 12). The optical vibrationsensor (2) is configured so that in use, after the first portion of light (32) passes through the diffractive optical element (14), the first portion of light (32) is reflected from a reflective surface (26) onto the photo detector (12). The input device (4) is placed in contact with a surface of a solid body (24), and an object is brought into physical contact with the surface of the solid body(24), thereby causing vibrations in the solid body (24). The vibrations are detected using two or more of the optical vibration sensors (2). The relative phase(s) of the vibrations are used to determine information regarding the point of contact of the object on the surface of the solid body (24).

Description

technical field [0001] The present invention relates to touch-based input devices, and more particularly to touch-based input devices that are easily portable but provide a large touch input surface. Background technique [0002] There are a variety of electronic user-operated devices that require a way for the user to provide input to the device. Examples of such devices include computers, media devices, virtual reality devices, and the like. Some common input devices include peripherals such as keyboards, computer mice, trackballs, and the like. However, some of these peripherals may be difficult to use or learn to use, take up space, and provide less convenient or less intuitive ways to provide input. More recent input devices include touch-based input devices, such as touch screens or touch pads, eg as disclosed in US 7,411,581. However, such devices generally require larger touch input areas to provide users with desired input options (eg, such as providing touch inp...

Claims

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Application Information

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IPC IPC(8): G06F3/043G01H9/00
CPCG01H9/00G06F3/043G06F3/0414G06F3/0416G06F3/042
Inventor 托拜厄斯·戈尔德·达尔马格努斯·克里斯蒂安·比约肯安德烈亚斯·沃格奥德·克里斯汀·奥斯特恩·佩特森
Owner 斯特凡TTO有限公司
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