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ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL
MODEM。ADSL 用户端调制解调器驱动器是...
ADSL 接入技术已成为终端用户最主要的宽带接入技术。ADSL 技术的关键是ADSL 调制解调器,即ADSL
MODEM。ADSL 用户端调制解调器驱动器是一个宽频带功率放大器,他能不失真放大和传输电话线上已编码的数字信号。
本文通过对ADSL 调制解调器驱动器特点、结构和性能的分析,给出了一种ADSL 用户端MODEM 驱动器的实现电路。该
电路采用具有优良高频的双功率放大器L T1886 ,即使在配置高电平的闭环增益网络后也能保持较低的失真。-ADSL access technology has become the most important end-user broadband access technology. ADSL technology is the key to ADSL modem, that is, ADSLMODEM. ADSL modem client driver is a broadband power amplifier, the distortion that he can not enlarge and transfer telephone lines have been encoded digital signal. Based on the ADSL modem driver characteristics, structure and performance analysis, we give a ADSL client realize MODEM driver circuit. The circuit has an excellent high-frequency power amplifier of the dual-L T1886, even though high in the configuration of the closed-loop gain network also able to maintain low distortion.
- 2022-06-26 03:59:10下载
- 积分：1
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iWebSMS2000是一个基于Web的短信平台
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iWebSMS2000是一个基于Web的短信平台
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目前政府、企业信息化，对消息的获取提出了更加严格的要求，需要随时随地、不受
空间、时间、地点的限制；要求主动获取消息，要求能在节省成本，同时保证信息安全，
在这种情况下，本公司自行研制开发了基于Web方式的iWebSMS2000短信消息平台管理方案。
这个方案是采用金格无线Modem作为短信收发设备，并在此基础上开发了金格短信服务器软
件和Web应用组件，支持JavaBean或COM调用方式，提供高可靠的扩展性，方便了政府、企
业和软件开发商应用集成。-iWebSMS2000 is a Web-based messaging platform =========== ======================================== =========================== government, corporate information, Access to information made more stringent requirements, the need anywhere from space, time and location constraints; Active demand access to information requests in cost savings, while ensuring the security of information, in this case, The company developed its own Web-based information to the SMS platform iWebSMS2000 management programs. The program is the use of lattice as a wireless modem SMS transceiver equipment, and on this basis the development of the lattice messaging server
- 2022-09-06 16:50:03下载
- 积分：1
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通过猫实现计算机之间的通信，它是属于串口通信的类型。
通过猫实现计算机之间的通信，它是属于串口通信的类型。-Implementation through the cats of the communications between computers, it is belong to the type of serial communication.
- 2022-12-11 00:45:04下载
- 积分：1
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自去收发传真程序，检查MODEM,自动设置，发送，接收。完全适用。...
自去收发传真程序，检查MODEM,自动设置，发送，接收。完全适用。-to send and receive faxes from the procedures, inspection MODEM, automatically set, sending, receiving. Fully applicable.
- 2023-02-11 14:40:03下载
- 积分：1
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诺亚短信控件
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本控件支持大部分的手机和GSM工业模块,通过计算机串口或USB转串口可以
实现手机或GSM工业模块短...
诺亚短信控件
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本控件支持大部分的手机和GSM工业模块,通过计算机串口或USB转串口可以
实现手机或GSM工业模块短信收发，电话簿管理，拨打电话等工作.
一、主要特点:
==========
1.数据收发可靠，经过大量短信收发的检验
2.可以同时处理短信发送，和短信接收工作
3.多个操作可以同时进行，不会产生数据遗失
4.允许读取所有电话簿,读取所有短信，读取短信数量和容量
5.允许获取模块信息,可以读取模块厂商,设备ID,IMEI,IMSI及所属网络
6.允许用户设定短信自动接收
7.允许用户设定读取短信后是否删除
8.短信发送状态指示
9.BenQ M22模块及其AT指令兼容模块适用
10.数据捕获功能，方便调试模块及AT命令
11.每小时的平均发送速度约600条左右
-Noah SMS Control ~~~ ~~~ support of the majority of the controls and GSM mobile phone industry Die Block, through the computer serial port or USB serial transfer can be achieved or GSM mobile phone text messages industrial transceiver module, Directory management and dialed phones. a main features : ========== 1. reliable data transceiver, After a large number of text messages sent or received by two tests. can also handle text messages sent, and SMS 3. more operation can be done concurrently and Data have not lost four. Allow access to all telephone di
- 2022-05-22 01:26:51下载
- 积分：1
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AT command processing (send and receive phone calls with the message), because I...
AT命令整理(打电话与收发短信),因为我做的这个模块只用打电话与发短信的功能 -AT command processing (send and receive phone calls with the message), because I make this module only call and send text messages function
- 2022-01-25 21:12:37下载
- 积分：1
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DPSK modulation methods used Direct Sequence Spread Spectrum Signal
采用dpsk方式调制的直扩信号
-DPSK modulation methods used Direct Sequence Spread Spectrum Signal
- 2022-07-12 19:22:36下载
- 积分：1
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This documentation of 288LCD modem
This documentation of 288LCD modem-This is documentation of 288LCD modem
- 2022-03-10 22:37:58下载
- 积分：1
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CML CMX868调制解调器
CML CMX868 modem
- 2022-11-16 09:40:03下载
- 积分：1
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gprs protocol stack code. The so
gprs协议栈代码.所谓协议栈就是对信息进行多次封装和解封的过程，以便能够在不同的实体间传送信息。本源代码来自Indian Institute of Technology-gprs protocol stack code. The so-called agreement is the right information Stack several Packaging, and the course was cleared, to the various entities to disseminate information. Source code from the Indian Institute of Technology
- 2022-12-14 04:25:03下载
- 积分：1
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