对讲系统

Was founded in 2005, is a company engaged in closed-circuit television monitoring, burglar alarm, intelligent building intercom, card, car park equipment sales and system design, installation, after-sales service as one of the high-tech enterprises .

青岛恒源电子科技有限公司成立于2005年，是一家从事闭路电视监控、防盗报警、智能楼宇对讲、一卡通、停车场的器材销售以及系统的设计、安装、售后服务为一体的高科技企业。

This paper realizes a digital embedded video communication and monitor system that used in visual talk-back.

本文实现了一种用于可视对讲中的数字化嵌入式视频通信与监控系统。

SPU-9 intercom, P-503B headset recorder, Almaz-UP-48 voice warning system and HF com/nav; IFF ('Slap Shot').

以前发布的SPU - 9对讲，名P - 503B耳机录音机，阿尔马兹行动- 48语音警告系统和高频的COM /资产净值；森林论坛。

There is a talk-back system between the wheelhouse and accommodation.

操舵室和生活区之间有对讲联络系统。

In the first stage, the company focused on high speed FLEXTM pagers and paging system equipment, and was recognized as one of the manufacturing centers of Motorola in China. Currently, the company is engaged in the manufacturing and sales Walkie Talkie.

公司前期生产高速率FLEXTM 制式寻呼机和系统设备，成为摩托罗拉在中国主要的生产基地之一，现在主要从事新一代民用对讲机的制造和销售，开拓了无线对讲走向普通消费者的先河。

Professional Main Products are:(1) all kinds of electric locks Product Series: electromagnetic lock series, electric plug lock series, electric locking series lock series, hotel lock series, all kinds of special-shaped electric lock series;(2) sizes Intelligent Access Management Series: Single door machine, access control attendance machine, fingerprint access control machine, single-door two-way controller, two two-way controller, four one-way controller (communication mode may choose 485 or TCP / IP);(3) access control electric locks surrounding attachment Series: electric plug lock folder dedicated Frameless door, magnetic lock dedicated stent, the models go out button, a dedicated lock access control power supply, various types of access control card , EMID reader / issuer, and intercom access control system, a dedicated power lock delay.

专业主营产品有：（1）各式电锁产品系列：电磁锁系列、电插锁系列、电锁口系列、指纹锁系列、酒店锁系列、各式异形电锁系列；（2）大中小型智能门禁管理系列：单门一体机、门禁考勤机、指纹门禁一体机、单门双向控制器、两门双向控制器、四门单向控制器、（通讯模式均可选择485或TCP/IP）；（3）门禁电锁周边附件系列：电插锁专用无框门夹、磁力锁专用支架、各款式出门按钮、门禁专用锁电源、各类型的门禁感应卡、EMID读卡器/发卡器、对讲门禁系统锁延时专用电源。

By using this MMLC technique, an echo cancellation system without the need for double talk detection is proposed.

此外，基于MMLC建模技术，设计了一种稳健的无双端对讲检测回声抵消系统。

Formerly Sunbeam factory anti-theft door is set anti-theft doors, fire doors, smart alarm doors, building Talkback door systems, burglar alarm systems development, sales and service in one of the high-tech enterprises.

重庆天安金门业有限公司是集防盗门、防火门、智能报警门、楼宇对讲门系统、防盗报警系统开发、销售和服务于一体的高科技企业。

Based on the thorough analyzing function and practical value which amplifying call and telephone talk system should have, this thesis proposed the hardware and software scheme, which PC with software program controls system to work hormonally, and presented the introduction of hardware-circuit and software-realizati- on processes in detail.

本论文通过对扩音对讲电话系统所应具有的功能、以及其实用价值进行深入分析的基础上，提出了单片机结合软件程序控制系统协调工作的软/硬件方案，并且给出了详细的硬件电路介绍以及软件实现机理。

Based on the thorough analyzing function and practical value whichamplifying call and telephone talk system should have, this thesisproposed the hardware and software scheme, which PC with softwareprogram controls system to work hormonally, and presented theintroduction of hardware-circuit and software-realizati- onprocesses in detail.

本论文通过对扩音对讲电话系统所应具有的功能、以及其实用价值进行深入分析的基础上，提出了单片机结合软件程序控制系统协调工作的软/硬件方案，并且给出了详细的硬件电路介绍以及软件实现机理。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。