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用于遥控系统的微处理器一般都具有静噪功能。但不同的微处理器其功能的强弱,动作机制以及如何在整机上运用都不尽相同。从整机使用性能出发,完全的静噪功能应包括以下几项内容。 1.在搜台过程中,不论搜到电台与否,都不应出现伴音或噪声。此时音量增减按键不起作用。搜索完毕转入正常使用时,出现正常伴音,音量增减的作用恢复。 2.正常使用中,切换频道时,在切换瞬间伴音中止,扬声器中不应出现切换噪声。 3.开启或关断电源时,也不出现电冲激噪声。 4.电视节目结束之后,或因某种原因电视
Microprocessors used in remote control systems generally have a squelch function. But different microprocessors its function strength, the movement mechanism as well as how to use in the complete machine all is not the same. Starting from the overall performance of the machine, complete mute function should include the following. 1. During the search of stations, no sound or noises should be heard no matter whether the stations were found or not. At this time the volume increase or decrease button does not work. Search finished into normal use, there is a normal sound, volume increase or decrease the role of recovery. 2. In normal use, when switching channels, the sound stops at the moment of switching, and the switching noise should not appear in the speaker. 3. When the power is turned on or off, there is no electrical impulse noise. 4. After the end of the television program or for some reason TV