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Method and remote controller for identifying keying

An identification method and key technology, applied in the field of remote control, can solve problems such as low detection accuracy and misoperation, and achieve the effect of increasing control accuracy

Active Publication Date: 2011-09-07
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The accuracy of such detection is not high, and it is easy to cause misoperation

Method used

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  • Method and remote controller for identifying keying
  • Method and remote controller for identifying keying
  • Method and remote controller for identifying keying

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Embodiment Construction

[0026] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] The purpose of the present invention is to provide a general infrared remote control continuous button detection method, which has two protection mechanisms and can improve the accuracy of system response.

[0028] The button recognition method and detection cycle of the existing infrared remote control have been explained in the background technology, because the detection cycle is mostly 200 or 400ms, and the interval between consecutive buttons is 110ms, combined with the actual infrared received signal is the transmitted The reason why the signal is reversed is that even though the menu button is only pressed once, a continuous button waveform may appear. Such as image 3 As shown in the waveform diagram of the manual operation of the NEC code remote control, it is the waveform generated by a single button. Therefore, this situati...

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Abstract

The invention relates to a method for identifying keying, comprising the following steps: setting delay time and circulating detection period interval; receiving a keying signal and decoding the keying signal; responding the decoded keying signal, and triggering the delay time timing of the decoded keying signal; circularly detecting the decoded keying signal to judge whether the keying is continuous keying or not, if the keying is not the continuous keying, quitting the response, and if the keying is the continuous keying, repeatedly responding the keying signal; circularly detecting whethera next continuous keying signal exits or not, if the next continuous keying signal exits, repeatedly responding the keying signal, and if the next continuous keying signal does not exist, quitting the response. The invention also relates to a corresponding remote controller for identifying continuous keying operation or single keying operation.

Description

technical field [0001] The invention relates to a continuous button identification method, which is used to identify whether the button operation of a remote controller is a continuous button operation or a single button operation, and also relates to a corresponding remote controller. Background technique [0002] In the existing remote controllers, there are continuous button operations or single button operations. How to make the control unit recognize whether it is continuous button operations or single button operations, so that the remote controller can issue correct commands is the design and manufacture of the remote controller. A key technical point. [0003] In the infrared remote control, the NEC code is generally used for infrared remote control. The basic working principle of its continuous key operation is as follows: when the user presses the volume + / -, program number + / - and other keys and keeps pressing them, the continuous key is triggered. In this case, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C23/04H04N5/44
Inventor 张静陈世雷孙昭全
Owner HISENSE VISUAL TECH CO LTD