Key, terminal device and method for determining key stroke
A button and travel technology, applied in the field of buttons, can solve problems such as high structural precision requirements, complex button structure design, unfavorable assembly and production, etc., and achieve the effect of easy assembly, simple structure and low cost
Inactive Publication Date: 2015-09-02
QINGDAO GOERTEK
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Problems solved by technology
Among them, the button structure design realized by potentiometer and silica gel pad plus carbon film is more complicated, and the error is relatively large, while the analog button realized by Hall method requires higher structural accuracy.
Therefore, it is unfavorable for assembly and production to utilize the button implementation scheme in the prior art
Method used
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[0047] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0048] Such as figure 1 As shown, the button of the embodiment of the present invention includes: a keycap 11, a connection unit 12, an infrared light emitting unit 13, a base 14, an infrared receiving unit 15 and a signal processing unit (not shown in the figure). Wherein, the keycap 11 is connected to the base 14 through the connecting unit 12; Inside; the infrared receiving unit 15 is connected to the signal processing unit, and the signal processing unit is arranged on the base 14 .
[0049] Wherein, since the keycap has a bottom end and a side wall, a certain space may be formed between the keycap 11 and the base 14 during the process of forming the key. For example, the infrared light-emitting unit or the infrared receiving uni...
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The invention discloses a key, a terminal device and a method for determining a key stroke, relates to the technical field of keys, and is invented for enabling the key to be easy to assemble. The key includes: a keycap, a connecting unit, an infrared light-emitting unit, a pedestal, an infrared receiving unit and a signal processing unit; the keycap is connected with the pedestal through the connecting unit; the infrared light-emitting unit and the infrared receiving unit are arranged in a space formed by the keycap and the pedestal; the infrared receiving unit is connected with the signal processing unit, and the signal processing unit is arranged on the pedestal; when the key is pressed, an infrared signal emitted by the infrared light-emitting unit is received by the infrared receiving unit; the infrared receiving unit generates a signal output value according to the strength of the infrared signal, and sends the signal output value to the signal processing unit; and the signal processing unit determines the key stroke according to the signal output value. The key provided by the invention is easy to assemble and produce.
Description
technical field [0001] The present invention relates to the field of button technology, in particular to a button, a terminal device and a method for determining the stroke of a button. Background technique [0002] At present, most of the analog buttons are realized by means of potentiometers, silicone pads, carbon films, and Halls. Among them, the structural design of the button realized by the potentiometer and the silica gel pad plus the carbon film is more complicated, and the error is relatively large, while the analog button realized by the Hall method requires higher structural accuracy. Therefore, using the button implementation solutions in the prior art is not conducive to assembly production. Contents of the invention [0003] In view of this, the main purpose of the present invention is to provide a button, a terminal device and a method for determining the stroke of the button, so as to facilitate the assembly and production of the button. [0004] In order...
Claims
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IPC IPC(8): H03K17/965
Inventor 王忠双滕祥瑞王平平
Owner QINGDAO GOERTEK