A busy tone is a tone that appears when a single tone of a certain frequency and silence interact, usually used to indicate that the phone is busy. In some practical applications, this busy tone needs...
[i=s]This post was last edited by qwqwqw2088 on 2018-10-6 11:32[/i] [size=4]Altium designer 19 has been released. The software is only for everyone's learning. [b]Statement: Do not use it for commerci...
[align=left][b][font="][size=14pt]1[font=宋体]、[/font][font=Times New Roman]Cnt_6[/font][font=宋体]的[/font][font=Times New Roman]VHDL[/font][font=宋体]源代码如下:[/font][/size][/font][/b][/align][align=left]libr...
In addition to being used as an AC signal amplifier , the triode can also be used as a switch. Strictly speaking, the triode is not exactly the same as a general mechanical contact switch in terms of ...