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Modem编程 Make and answer phone calls Detect tone and pulse digit from the phone line Capture Caller ID
Make and answer phone calls
Detect tone and pulse digit from the phone line
Capture Caller ID
Support blind transfer, single-step transfer/conference, consultation transfer/conference, hold, unhold.
Control of the local phone handset, microphone and speaker of the modem
Send and receive fa ...
文件格式 This project aim was to build wireless software modem for data communication between two computers
This project aim was to build wireless software modem for data communication
between two computers using an acoustic interface in the voice frequency range (20Hz–
20,000Hz). The transmitting antenna is a speaker (frequency response of: 90Hz –
20,000Hz) and the receiving antenna is a microphone (fr ...
其他书籍 Commercially available active noise control headphones rely on fixed analog controllers to drive "an
Commercially available active noise control headphones rely on fixed analog controllers to drive "anti-noise" loudspeakers. Our design uses an adaptive controller to optimally cancel unwanted acoustic noise. This headphone would be particularly useful for workers who operate or work near heavy machi ...
技术资料 ATE1133音频解码芯片方案设计 USB音频芯片方案 USB声卡芯片方案 typec耳机方案分享
USB音频方案,USB声卡方案1. 描述ATE1133是一颗包含音频编解码器、HIFI级单麦克风输入和立体声耳机输出解决方案。内部集成多个模块，包括高速&全速USB Host/Device收发器(PHY)，ARM??Cortex?-M4?32-bit?MCU内核主频96MHZ，16bit ADC采样率：48、96KHZ、16bit DAC采样率：48、96KHZ，支持标准安卓耳机线控按键控制，支持美标C ...
技术资料 蓝牙芯片QCC5144 详细规格书
高通蓝牙芯片QCC5144 详细规格手册datasheet （共99页）含各个接口说明，应用原理图等信息。 QualcommTrueWireless™ stereo earbuds  (无线双耳） Features（特点） ■ Qualifiedto Bluetooth v5.2 specification  （蓝牙协议标准5.2） ■ 120 MHz Qualcomm ® Kalimba ™ audio DSP  （120MHz 的音频DSP ...
技术资料 高通蓝牙芯片QCC3040 详细规格手册datasheet
高通蓝牙芯片QCC3040 详细规格手册datasheet （共96页）QualcommTrueWireless™ stereo earbuds  (无线双耳）Features（特点）■ Qualifiedto Bluetooth v5.2 specification  （蓝牙协议标准5.2）■ 120 MHz Qualcomm ® Kalimba ™ audio DSP  （120MHz 的音频DSP处理器）■ 32 MHz Developer Processor fo ...