INPUT DEVICE - BOLYMEDIA HOLDINGS CO LTD

Title:

INPUT DEVICE

Document Type and Number:

WIPO Patent Application WO/2017/084039

Kind Code:

A1

Abstract:

An input device, comprising at least one key position (110) and a control and readout circuit (120). Each key position (110) is provided with a light transmission window (111) and a photosensitive device (112) thereon, the light transmission window (111) being used for the incidence of an external light, and the photosensitive device (112) being provided on the light path behind the light transmission window (111), the status of the photosensitive device corresponding to the light intensity of the incident external light. The control and readout circuit (120) is used for resetting and scanning each photosensitive device (112), and outputting, according to the scanned status of each photosensitive device (112), a key signal indicating whether the corresponding light transmission window (111) is covered or not. The input device obtains input information by means of sensing the variation of the light intensity, instead of the traditional press input method, enabling, on one hand, a quicker reaction speed and on the other hand requiring no finger press, not only reducing the workload of the finger, but also decreasing the requirement for finger dexterity.

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Inventors:

HU XIAOPING (CN)

Application Number:

PCT/CN2015/094900

Publication Date:

May 26, 2017

Filing Date:

November 18, 2015

Export Citation:

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Assignee:

BOLYMEDIA HOLDINGS CO LTD (US)
HU XIAOPING (CN)

International Classes:

G06F3/02

Foreign References:

CN102214002A	2011-10-12
US3621268A	1971-11-16
CN101299603A	2008-11-05
CN101236467A	2008-08-06
CN203102166U	2013-07-31
US5351106A	1994-09-27

Other References: