Key detection processing method

A processing method and key technology, applied in television, signal transmission systems, instruments, etc., can solve problems such as failure of the microprocessor to respond to new operations, improve the quality of the whole machine, avoid the phenomenon of non-response, and have great added value. Effect

Inactive Publication Date: 2008-06-04
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0003] In order to solve the problem in the prior art that the key has been switched but the microprocessor does not respond to the new operation, the present invention provides a new type of key detection and processing method. The value is processed to a certain extent, so as to give the microprocessor enough time to respond to the new key operation, effectively avoiding the phenomenon that the key has been switched without responding

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  • Key detection processing method

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Embodiment 1

[0013] In the first embodiment, the key detection and processing method of the present invention is described by taking the keys of the remote control as an example. When the user presses the key of the remote control, the infrared transmitter of the remote control transmits the key value to the infrared remote control receiver in the TV, and interprets the key value of the current key according to certain remote control codec rules. The bus reads the feedback value of the remote control receiving head, and the background task of the software continuously obtains the current remote control key value in a loop. In general software, when there is no key operation, the current key value is 0 by default. If the obtained value is not 0, it corresponds to the preset key value in the program, thereby triggering the corresponding functional event and completing the control of the TV. operate. Because it is a cyclic detection, a variable will be set in the software to record the key v...

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Abstract

The invention discloses a key-pressing detection processing method, which optimizes the processing program for key-pressing detection. When fast key-pressing switching operations happen, the micro-processor needs enough time to respond to the changes in key-pressing so as to successfully switch to the current key-pressing operation and realize key-pressing switching. When the CPU detects two key-pressing operations with different key-pressing values, then the current key-pressing value is set as the key-pressing value corresponding to no operation of key-pressing. The process is repeated in the following key-pressing detection cycles, and then the CPU detects the current key-pressing value again and responds to the current key-pressing operation, thus the phenomenon that key-pressing is switched without response is effectively avoided, the added value of the user is maximized and the whole quality of the TV set is obviously improved.

Description

technical field [0001] The invention relates to a method for detecting and processing the triggering of a key, in particular to a key detection and processing method for avoiding the phenomenon that the key has been switched and has no response. Background technique [0002] Along with the popularization of television sets more and more widely, the use of remote controller is also more and more frequent. In daily life, adjustment items such as sound and image quality are one of the most frequently adjusted options by users. In order to make the adjustment more continuous, all TV software sets the plus and minus keys as continuous keys, that is, if you press and hold , the value in the menu option will change continuously. Because the processing speed of the microprocessor has a certain limit, if the remote control button is switched relatively quickly, it is possible that the button has been switched, but the microprocessor does not have enough time to respond to the new bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/00G08C23/04H04N5/44
Inventor 武玉朋
Owner HISENSE VISUAL TECH CO LTD
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