电子信息专业英语第十一课

noisy radio environments. The entire available frequency
spectrum is used with 79 hops of 1 MHz bandwidth, analogous to the IEEE802.11 standard;
Low power consumption longevity for battery powered
Bluetooth technology is free for all the people, the use of bluetooth as shown in Fig 11-7 and Fig 11-8. It works in 2.4 GHz band without licensing, and can be used in industrial, technology, medicine . The products integrated the technology, from mobile phones, cars to the medical equipment, moreover, the users from consumers, industrial markets to enterprises, are too numerous to mention one by one. Bluetooth is an immediate technique, it does not require a regular infrastructure, and is easy to install and setup.
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电子信息教研室
专业英语
二 课文翻译
1、总起部分：提出本课工作任务 2、蓝牙技术的概念（1.What is bluetooth technology） 3、蓝牙技术的特征（2.what are the characteristics of
bluetooth technology ）
机械与电子工程学院
电子信息教研室
专业英语
device设备 interface接口 protocol协议
application应用 radio射频 spectrum谱
license许可证
simultaneously同时 analogous相似的，相同
numerous许多的
pave铺，铺满
frequency hopping频率跳跃
and so on, and paves the way for new and
completely different devices and applications.
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电子信息教研室
2、What are the characteristics of bluetooth technology
4、蓝牙技术的基本应用（3.the basic technical information and application）
机械与电子工程学院
电子信息教研室
专业英语
二 课文翻译
The bluetooth as shown in Fig 11-1. Under the help of modern technology, more and more people begin to work in the home (SOHO). In the past, various wires made the office confused, sometimes, even led to danger. But now, we use bluetooth, as shown in Fig 11-2, the wire disappeared, the whole office works in an efficient status as a machine. When we shuttle among the workplace, the family and other destinations, bluetooth helps us access important information and establish personal connection. Bluetooth brings us so many conveniences. Next ， we will introduce what bluetooth is ？ what about its advantages are？Where do we use it？
2、进一步加强对专业文献的阅读、翻译及理解的能力。
机械与电子工程学院
电子信息教研室
专业英语
Lesson 11 Bluetooth
学习任务： 如何将生活当中的通信终端设备在PC环境中实现无线使用？
办公室之间如何通过无线网络实现对话？
知识目标： 掌握蓝牙技术的概念和技术特征。 能力目标： 熟记与蓝牙技术相关的专业词汇。
communicate wirelessly via short range, ad hoc network.
Each unit can simultaneously communicate with up to several other units per piconet. Moreover, each unit can
and many other manufactures, eliminates the need
for wires, cables and connectors for and between
cordless or mobile phones, modems, headsets, PDAs, computers, printers projectors, local area networks,
机械与电子工程学院
电子信息教研室
专业英语
Bluetooth technology, as shown in Fig 11-4, is a universal radio interface in the 2.45 GHz frequency band that enables portable electronic devices to connect and
simultaneously belong to several piconets, as shown in
Fig 11-5.
机械与电子工程学院
电子信息教研室
专业英语
Bluetooth technology which apart from Ericsson,
has gained the support of Nokia, IBM, Toshiba, Intel
专业英语
1.What is bluetooth technology
Bluetooth technology supports short
communication (within 10 meters) as shown in Fig 11-3.
It can realize the wireless information exchange among the mobile phone, wireless headsets and other related equipment. IEEE802.15 is the technical standard, the operating frequency band is 2.4 GHz, the bandwidth is 1 MB/s.

Operate in the unrestricted 2.45 GHz ISM free band, which is available globally although slight variation of location and width of band apply;

Range set at 10 m to optimize for target market of mobile and business user; Gross data rate 1 MB/s with second generation planning to increase to 2 MB/s；
Fast acknowledgement allows low coding overhead for links; Flexible packet types support wide application range; Air interface tailored to minimize current consumption; CVSD (continuous variable slope delta modulation) voice coding enables operation at high bit error rates.
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专业英语
SOHO，即Small Office Home Office，家居办公，
大多指那些专门的自由职业者：自由撰稿人、平面设
计师、工艺品设计人员、艺术家、音乐创作、产品销 售员、平面设计、广告制作、服装设计、商务代理、
做期货、网站等等。
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电子信息教研室
机械与电子工程学院
电子信息教研室
专业英语
One to one connections allow maximum data transfer rate of
721 KB/s (3 voice channels);
Uses packet switching protocol based on frequency hop scheme with 1,600 hops/s to enable high performance in
devices. During data transfer the maximum current drain is 30 mA. However， during pauses or at lower data rates it will
be lower.
机械与电子工程学院 电子信息教研室
专业英语
加强专业技术文献的阅读理解能力。
机械与电子工程学院
电子信息教研室
一
Bluetooth蓝牙
关键词汇
destination目的地
专业英语
convenience方便
exchange交换 standard标准 bandwidth带宽 electronic电子的
technology技术
equipment设备 frequency频率 piconet微微网 infrastructure基础设施
Fast frequency hopping avoids interference; Adaptive output power minimizes interference; Short data packets maximize interference;
专业英语
1 MB/s symbol rate exploits maximum available channel bandwidth；
专业英语
Unit Four
Lesson 11 Bluetooth
Lesson 12 GPRS
Lesson 13
பைடு நூலகம்
Wireless LAN
机械与电子工程学院
电子信息教研室
专业英语
Unit Four
主要内容：了解一些日常生活中常用的先进电子技术、
通信技术等，包括蓝牙技术、GPRS技术和无线局域网技术
等。 学习目标： 1、了解通信系统的基本知识，了解无线传输、有线传 输的基本原理，以及他们各自在日常生活中的应用；
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电子信息教研室
3、The basic technical information and application

专业英语
Based upon a small, high performance integrated radio transceiver, each of which is allocated a unique 48bit address derived from the IEEE802 standard;