求 蓝牙英文文献及中文文献RT,回答采用后另加30分.现行谢过了

求 蓝牙英文文献及中文文献RT,回答采用后另加30分.现行谢过了
求 蓝牙英文文献及中文文献
RT,回答采用后另加30分.
现行谢过了

求 蓝牙英文文献及中文文献RT,回答采用后另加30分.现行谢过了
The so-called Bluetooth (Bluetooth) technology,is actually a short-range radio technology,the use of "Bluetooth" technology,which can effectively simplify the palm-sized PCs,notebook computers and mobile phones and other mobile phones for communication between terminal equipment can also be successfully These simplify the equipment and Internet communications between the Internet,so that these modern communication equipment and data transmission between the Internet more quickly and efficiently,in order to expand the wireless communications path.Bluetooth to adopt decentralized network structure,as well as fast frequency hopping and short-packet technology to support point-to-point and point-to-multipoint communication,common in the global 2.4GHz ISM (ie industry,scientific,medical) band.The data rate of 1Mbps.Using time division duplex transmission scheme to achieve full-duplex transmission.
蓝牙的英文名称是bluetooth,是1998年5月由爱立信、IBM、英特尔、诺基亚和东芝等5家公司联合制定的短距离无线通信技术标准,其目的是实现最高数据传输速率1Mb/s(有效传输速率是721kb/s)、最大传输距离为10m的无线通信.Bluetooth原为欧洲中世纪的丹麦国王Harald Ⅱ的名字,他为统一四分五裂的瑞典、芬兰和丹麦立下了不朽的功劳,以此命名即将成为全球通用的无线技术,也许另有含义.
最早提出蓝牙概念的是瑞典的爱立信移动通信公司.它是在一次为移动电话及电话附件之间寻找一种低功耗、低成本的无线接口时萌发出这样一种创意的.作为无线接口,有如下要求：
•对其工作的频率范围、技术造价、容量和接口尺寸大小的预先规定,目的是保证该技术具有所有线缆连接所没有的优势.
•无线单元的尺寸和功耗必须足够小,目的是可安装进许多便携设备中.
•支持语音和数据通信
•具有全球通用性
Bluetooth is the English name of bluetooth,it is in May 1998 by Ericsson,IBM,Intel,Nokia and Toshiba jointly developed by five companies short-range wireless communication technology standards,the aim is to achieve the highest data transfer rate of 1Mb / s (effective transfer rate is 721kb / s),the maximum transmission distance of 10m of wireless communications.Bluetooth was the king of Denmark,the Middle Ages in Europe the name of Harald Ⅱ,his uniform torn Sweden,Finland and Denmark have made a monumental contribution,as will soon become a global name of the wireless technology,may have meaning.
The concept of the first Bluetooth is a Swedish company Ericsson Mobile Communications.It is the first time for mobile phones and telephone between the Annex to find a low-power,low-cost wireless interface when the germination of such a creative.As a wireless interface,the following requirements:
• the frequency range of its work,technology cost,capacity and interface of a predetermined size,the purpose is to ensure that the technology to connect all the cables do not have advantages.
• wireless cell size and power consumption must be small enough,the purpose is to be installed into many portable devices.
• Support for voice and data communications
• a global common
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希望可以符合您的要求哦----