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7.1ban
- 按键式电话如下图所示,当按下某一个键时会产生如图所示的相应的频率模拟信号,并通过对该信号频率的检测,识别出对应的按键。试通过编写一个数字信号分析程序,模拟完成上面的功能。
wendang
- 电话按键的程序。提示你输入电话号码,输出相应的信号波形。一次为单个号码波形和总波形。-Phone key procedures. Prompts you to enter a phone number, the corresponding output signal waveform. No time for a single wave and the total waveform.
tele
- 在电话拨号时 ,每个按键都使用双频信号进行区分的,本MATLAB程序就是用来模拟发送号码的发送和接受过程,并发出按键音。-In a telephone dial-up, each button using the dual-band signal distinction, the MATLAB program is used to simulate the sending number to send and accept the process and issue the key tone.
jianpanbuju
- 设计键盘布局的程序,通过给定的指定文档统计每个按键的使用频率来合理地设计键盘-Keyboard layout design program, given the specified document by statistical frequency of use of each key to the rational design of the keyboard
DialButtonsRecognition
- 拨号按键识别GUI界面程序,原理采用DTMF,本程序随意按下六位数字,当按下第七位的时候屏幕清空,点击解析,结果将显示在文本框中,并有相应的声音。-GUI interface dial buttons identification procedures, principles using DTMF, this program free to press the six figures, when you press the seventh, when the screen is empty, c