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Touch-control method and touch-control device

A touch control and control unit technology, applied in the field of touch control devices and key response control, can solve problems such as poor anti-interference and sensitivity, affecting product reputation, and failing to improve product grades.

Active Publication Date: 2010-01-13
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, touch buttons have been widely used in electronic products, such as TVs, mobile phones, PDAs, refrigerators, washing machines and other products. If the problems of poor anti-interference and sensitivity are not solved well, not only cannot the grade of the product be improved, but will affect the reputation of the product

Method used

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Embodiment Construction

[0025] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0026] Many existing consumer products have touch technology, such as televisions, mobile phones, refrigerators, etc. The following uses televisions as an example to illustrate the implementation process of the present invention, but the present invention is not limited thereto.

[0027] Usually, the touch technology of the TV set, such as performing menu operations or adjusting volume, programs, etc., can provide a touch operation method. However, once there is electronic interference, the existing touch control technology may judge that all keys have been operated, thereby affecting the failure rate and stability of the touch technology.

[002...

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Abstract

The invention relates to a touch-control method comprising the following steps: circularly detecting the state of a key; outputting an operation signal of the key if the detection is an effective operation, and repeatedly circularly detecting the key if the detection is an ineffective operation. The touch-control method also comprises the following steps: when one or a plurality of keys are detected to be operated, discriminating the operated keys; recording the effective operation times of the keys, and returning the effective operation times of the other keys to zero. The invention also provides a touch-control device which can be widely used in products, such as televisions, handsets, refrigerators, and the like and enhance the anti-interference performance of touch operation.

Description

technical field [0001] The invention relates to a touch control method, in particular to a key response control technology of the touch control method, and to a touch control device, which can be widely used in TVs, computers, mobile phones, refrigerators and other products. Background technique [0002] The current popular touch technology implementation method generally senses the capacitance change through the relaxation oscillating circuit, that is, when no finger is pressed, the capacitance is fixed; when the finger is pressed, the capacitance changes. The implementation of the software algorithm is to obtain the charge and discharge times of the capacitor per unit time through the comparator of the chip, and determine whether there is a finger pressing by comparing the change value. [0003] The existing algorithm compares the charge and discharge times. When the difference between the charge and discharge times and the basic charge and discharge times exceeds a certai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M11/04
Inventor 王卫明
Owner HISENSE VISUAL TECH CO LTD