蓝牙语音传输外文翻译

1、.石家庄经济学院 本科生毕业设计（论文）外文翻译题目 蓝牙语音信号传输系统设计与仿真实现姓名 郭小林学号 407109060213 学 院 信息工程学院 专业 通信工程 指导教师 边群玲 BluetoothHuman is entering the digital network information age, a great number of digital communication and data transfer is achieved through the cable. These cables connected to these connectors in shape,

2、size and pin number of photogenic match through a variety of connectors and a variety of devices. Wired connection of digital equipment bring a lot of inconvenience for people to connect to networks anytime and anywhere. The development of wireless communication link technology, liberating people fr

3、om the shackles of a wired connection, has become a trend. The greatest feature of the Information Age is more convenient and rapid information dissemination, based on this point, technical staff is also working to develop more excellent information and data transmission. Bluetooth technology (Bluet

4、ooth) is a short-range wireless communication open technology which launched in 1998 by Ericsson (Ericsson), Nokia (NOKIA), Toshiba (TOSHIBA), International Business Machines (IBM) and Intel (INTEL) and other companies jointly. It Intends for portable or fixed electronic devices replace the use of c

5、ables or connections such as cable connections. Its main feature is a powerful, low power consumption, transmission reliability, versatility, low cost, and easy to use. We can use in the office, home, travel and in the laboratory, without any electronic devices in the special cable and connector lay

6、out. Bluetooth devices can form through a "micro-network", net of any Bluetooth transceiver can communicate with the device signal, and this connection does not require complex software support. Cast aside the shackles of the traditional connection, completely carefree days of fun, Bluetoo

7、th promises to give us enough to make spirits. Bluetooth, for the entire IT industry, has more than just a simple technology that has become a concept.Bluetooth technology is the founder of Sweden's Ericsson, already as early as 1994 its research and development. February 1998, Ericsson, Nokia,

8、IBM, Toshiba and Intel formed a five multinational special interest group (SIG, Special Interest Group), aims to create a global common standard short-range wireless communication technology, now Bluetooth technology. Bluetooth name from the 10th century Danish King Harald Blatand-translated as Haro

9、ld Bluetooth (because he was very fond of eating blueberries, so every day with a blue tooth), he had a unified Europe over Norway, Sweden and Denmark. The high will be named after him, is to express a unified industry standard Bluetooth technology to make coordination between different industrial a

10、reas, good communication with each other to meaning. Bluetooth applications for work permits without the 2.4GHz ISM band, based on time division multiplexing and frequency hopping principle, the combination of circuit switching and packet switching is suitable for voice transmission and data transmi

11、ssion. Currently, Bluetooth products have been widely used in mobile communications, computer and peripheral equipment, automotive, industrial controls, appliances, office applications, e-commerce, medical fitness and other fields.Bluetooth technology enables a variety of mobile devices, computer pe

12、ripherals and other low-cost digital wireless connection between devices made possible not only to replace the cable connection between these devices, but also makes the function of many digital devices has been expanded so that the original Independent of the digital devices can be networked with o

13、ther devices to exchange information. Since Bluetooth small size, low power consumption, can be integrated into almost any digital device, especially those less demanding on the data transmission rate of mobile devices and portable devices. Ideas have been proposed for many applications, some alread

14、y have products available. From a market perspective, the Bluetooth technology to create point to point connections, multipoint connections, and personal area network applications and other network products.More and more people consider their own devices to add wireless connectivity, people have gra

15、dually realized that the Bluetooth technology, low power consumption and low cost solution is ideal. Bluetooth SIG to promote the use of the Bluetooth technical standards will be open all over the world within the scope of any unit or individual can be the development of Bluetooth products, as long

16、as the final product by the Bluetooth SIG compliance testing to connect to the market. Many manufacturers have manufactured have Bluetooth products, the future of Bluetooth technology will be more mature and function will be more powerful.Bluetooth is an open, short distance wireless communication t

17、echnology standard that can be used in a smaller range of a wireless connection means to achieve the fixed equipment, and interconnection between mobile devices, can be flexible between various digital devices , Safety, low cost, small power consumption of audio and data communication. Because Bluet

18、ooth technology can be easily embedded into a single chip, so it is especially suitable for small mobile communication devices.Bluetooth carrier frequency used globally 2. 4GHz ISM industrial, scientific, medical) band, the 2. 4GHz ISM band is open to all radio frequency systems, the use of any one

19、frequency band are likely to encounter unpredictable Sources of interference. Using frequency hopping spread spectrum technology is an effective measure to avoid interference. Band frequency hopping is to be divided into a number of frequency hopping channels in a connection, the radio transceiver a

20、ccording to a certain code sequence and continuously from one channel to another channel, the two sides is the only transceiver to communicate according to the law, while others Sources of interference can not be carried out by the same laws of interference. Instantaneous bandwidth of frequency hopp

21、ing is very narrow, but through spread spectrum technology to make this into a narrow bandwidth to expand into broadband times, so that the impact of interference may become very small. Bluetooth uses frequency hopping spread spectrum technology is one of the key. Corresponds to the single-slot pack

22、et, the Bluetooth frequency hopping rate of 1600 hop / sec; corresponding slot bag, hopping rate is reduced; in 3200 to establish the link to raise the jump / sec. Such a high rate of use of frequency hopping, Bluetooth system has a sufficiently high anti-interference ability. It uses the butterfly

23、as the core of multi-level mapping program, compared with other programs, with a hardware device is simple, superior performance, ease of 79/23 band compatible with the two systems and a variety of state hopping sequence using the same circuit to realize.The human voice is the most basic and direct

24、exchange of information. Since the phone has been invented, voice communication has always been to continue the development of fast rate from the previously adopted a comprehensive approach to digital simulation methods. Digital voice signal transmission and storage reliability, interference immunit

25、y, security and price and so on are much better than analog voice signal. Voice to digital format are often stored and transmitted, the data can be transmitted through voice devices. Some wireless communication technology is designed to transmit voice, while others are designed for use with data ser

26、vices. The Bluetooth technology supports both voice and data transmission, can support voice or data devices to communicate with each other. Contribute to the development of the system's wireless voice message listener. More spiritual system works if either the wireless remote control PC, and up

27、load the voice data collected microcontroller can also choose to operate the system locally. The two control not only independent of each other, can be used alone, but also cross-use with each other to meet the practical requirements of different jobs. As the system uses Bluetooth wireless communica

28、tion, the transmission speed, high reliability, not only to ensure that the voice listener, but also to make itself has some anti-detectable. In addition, the MCU side joined the U disk function of large-capacity data storage can be necessary in the circumstances to save the information locally and

29、temporarily sent outside until the right time to further transmission. This undoubtedly increased the hidden nature of the whole system to make it closer to the practicability. 蓝 牙人类正步入数字化网络信息时代，目前很多数字通信和数据传输都是通过缆线连接来实现的。这些缆线通过各式各样的连接器与各式各样的设备相连接，这些连接器要在形状、尺寸及引脚数目上相匹配。数字化设备的有线连接给人们随时随地与信息网络连接和通信带来了许

30、多不便。发展无线通信连接技术，将人们从有线连接的束缚中解放出来，已经成为一种趋势。信息时代最大的特点便是更加方便快速的信息传播，正是基于这一点技术人员也在努力开发更加出色的信息数据传输方式。蓝牙技术(Bluetooth)是1998年由爱立信(Ericsson)、诺基亚(NOKIA)、东芝(TOSHIBA)、美国国际商用机器(IBM)和英特尔(INTEL)等公司联合推出的一种开放性短距离无线通信技术。旨在用于替代便携或固定电子设备上使用的电缆或连线等有线连接。其主要特点在于功能强大、耗电量低、传输可靠性高、通用性强、成本低廉、简单易用。在办公室、家庭、旅途和实验室中，无需在任何电子设备间布设专用

31、线缆和连接器。通过蓝牙装置可以组成一个“微网”，网内任何蓝牙收发器都可与该装置互通信号，而且这种连接无需复杂的软件支持。抛开传统连线的束缚，彻底地享受无拘无束的乐趣，蓝牙给予我们的承诺足以让人精神振奋。蓝牙，对于整个 IT 产业而言，已经不仅仅是一项简单的技术，而成为了一种概念。 蓝牙技术的创始人是瑞典的爱立信公司，其早在1994年即已进行研发。1998年 2 月，爱立信、诺基亚、IBM、东芝以及 Intel 五家跨国公司组成了一个特殊兴趣小组(SIG，Special Interest Group)，旨在建立一个全球通用的短距离无线通讯技术标准，即现在的蓝牙技术。蓝牙的名字来源于 10 世纪丹

32、麦国王 Harald Blatand英译为 Harold Bluetooth(因为他十分喜欢吃蓝莓,所以牙齿每天都带着蓝色)，他在欧洲曾经统一过挪威、瑞典和丹麦。将这项高新技术以他的名字来命名，是为表达蓝牙技术要统一行业标准，使不同工业领域间协调工作、彼此能够良好交流之意。蓝牙技术工作在无需申请许可证的2.4GHz的ISM频段上，基于时分复用和跳频原理，将电路交换和分组交换结合，适合于语音传输和数据传输。目前，蓝牙产品已广泛被应用于移动通信、计算机及其周边设备、汽车、工业控制、家电设备、办公应用、电子商务、医疗健身等多个领域。蓝牙技术使各种移动设备、计算机外设等数字设备之间的无线廉价连接成为可

33、能，它不仅取代了这些设备之间的缆线连接，而且还使得许多数字设备的功能得到了扩充，让原来独立的数字设备可以与其他设备连网交换信息。由于蓝牙体积小、功耗低，几乎可以被集成到任何数字设备中，特别是那些对数据传输速率要求不高的移动设备和便携设备。人们提出了许多应用设想，有些己经有产品问世。从市场的角度看，蓝牙技术可制造出点对点连接、点对多点连接的应用产品以及个人局域网等网络产品。越来越多的人考虑给自己的设备增加无线连接，人们也逐步意识到蓝牙技术的低功耗和低成本解决方案是理想的。SIG为了推广蓝牙技术的使用，将蓝牙的技术标准全部公开，全世界范围内的任何单位和个人都可以进行蓝牙产品的开发，只要最终通过SIG的蓝牙产品兼容性测试，就可以推向市场。目前许多制造商已纷纷制造蓝牙产品，未来的蓝牙技