有关蓝牙技术的词汇

processing part of the hardware -- the Bluetooth link controller, which carries out the baseband protocols and other low-level link routines. 描述了数字信号处理的标准硬件部分：蓝牙链接控制器，有基带协议和其他底层的链接规程。

11 BCH Bose, Chaudhuri & Hocquenghem Type of code. The persons who discovered these codes in 1959 (H) and 1960 (B&C)

12 BD_ADDR Bluetooth Device Address 蓝牙设备地址 每个蓝牙收发器被分配了唯一的一个48位的设备地址，该地址包括24位的LAP 域，16位的 NAP 域和一个8位的UAP 域。 13 BER Bit Error Rate 误比特率

365 BHC Bose BCH Bose, Chaudhuri & Hocquenghem Type of code 搏斯-乔赫里-霍克文黑姆码 163 Bluetooth Bluetooth 蓝牙 An open specification for wireless communication of data and voice. It is based on a low-cost short-range radio link facilitating protected ad hoc connections for stationary and mobile communication environments. Bluetooth clock The master timing mechanism defined by the master of the piconet. Bluetooth device A device that contains hardware and software allowing it to communicate with another Bluetooth device. 一个关于数据和语音无线通信的开放标准。它是低成本的，短距离无线连接方案，适用于静止的和移动通信环境。 261 Bluetooth Clock Bluetooth Clock 蓝牙时钟 每一个蓝牙设备有一个内部系统时钟，用来决定收发器的时序和跳频。该时钟不会被调整或者关掉。该时钟可以作为一个28位计数器使用，其LSB位的计数周期是312.5us，即时钟频率为3.2kHz。

164 Bluetooth device class Bluetooth device class 蓝牙设备分类 \the type of device and which types of services that are supported. The class is received during the discovery procedure. The parameter contains the major and minor device class fields. The term \e The name of the device. (248 bytes maximum)\该参数用于指出设备类型，以及所支持的服务类型。在设备发现过程中，将接收到设备的类信息。

165 Bluetooth device type Bluetooth device type 蓝牙设备类型 \type\\type\there is a mix of information containing both Bluetooth Device Class and Bluetooth Service Types.\

166 Bluetooth passkey Bluetooth passkey \name of the PIN. The term \passkey\

167 Bluetooth service type Bluetooth service type 蓝牙服务类型 One or more services a device can provide to other devices. The service information is defined in the service class field of the Bluetooth device class parameter. Bluetooth Session The activity and participation of a device on a piconet. 一个蓝牙设备提供给另外设备一项或者一项以上的服务。服务信息在蓝牙设备分类参数的服务类别（service class）域中进行了定义。

168 bond bond A link key that is exchanged between two devices. The key is used for future authentication between the devices. See also bonding.

169 bonding bonding Bonding is the creation of a relationship between two devices. The bond is a link key The relationship is created when the link key is exchanged between two devices. The devices are known to each other prior to the bonding procedure. A user initiates the bonding procedure and enters a passkey with the explicit purpose of creating a bond between two devices. This differs from the authenticate using a passkey procedure where the user is requested to enter a passkey during the establishment of the link.

170 Browser Browser 浏览器 An application that allows interaction with Internet web pages.

14 BT Bandwidth Time 带宽时间

15 BT Bluetooth 蓝牙 \services that are supported. The class is received during the discovery procedure. The parameter contains the major and minor device class fields. The term \class\maximum)\

171 Bus Bus 总线 A set of data lines to transfer information from one device to another. 172 business card business card 商务卡（电子版） The electronic date equivalent to a printed business card. This electronic version of the business card is treated like a file and can be exchanged between Bluetooth devices. See vCard. 等同于打印出的商务卡，可以看作一个文件，可以在蓝牙设备之间进行交换。 16 \ CAC CAC

CAC\信道访问码 17 CC Call Control 呼叫控制

173 CDMA Code Division Multiple Access. 码分多址 CDMA is a digital cellular communications technology. Each call has a individual code to identify the call. Multiple calls can be grouped together on a single frequency. CDMA uses spread-spectrum techniques for handling radio communications. CDMA is an improvement on AMPS and TDMA cellular service. CDMA是项数字蜂窝通信技术，每个呼叫都有一个单一的代码作为标识。多个呼叫可以组合在在单一频率下，CDMA 使用了扩充带宽技术进行无线通信，CDMA是对AMPS和TDMA蜂窝技术的改进。

174 CDPD Cellular Digital Packet Data A method to more efficiently carry data on existing analog (AMPS) cellular radio systems.

175 channel channel 信道 A logical connection on L2CAP level between two devices serving a single application or higher layer protocol. 两个设备在L2CAP 层所建立的逻辑连接，服务于单一的应用或者高层协议。

265 Channel (hopping) sequence 信道跳频序列 这是个由79种频率组成的伪随机序列(对于23MHz system 系统来说，是23种)，使用微微网中主设备的蓝牙设备地址（BD_ADDR），可以计算出这些频率。序列的的相位可以通过对主设备的时钟的预测计算出来。信道跳频序列周期很长，在短时间内不会出现重复。在短时间内，跳频均匀分布在79MHz的范围内。。参见Frequency sequence。

176 Circuit Switched Circuit Switched 回路转换 The application of a network where a dedicated line is used to transmit information. Only one user may employ the resources of the line at a time. 网络的一个应用，采用专用线路来发送信息。同一时间，，只有一个用户可以使用该回路。 177 Circuit Switched Bluetooth Circuit Switched Bluetooth 蓝牙回路转换 The application of a network where a dedicated line is used to transmit bluetooth data. 网络的一个应用，采用专用线路来发送蓝牙数据。

178 Circuit Switched Cellular/Radio Circuit Switched Cellular/Radio The application of a network where a dedicated line is used to transmit cellular/radio data. 18 CL Connectionless 无连接 266 CLK 时钟 \

通常指主设备的时钟，用来在微微网中进行定时。\ 267 CLKE 时钟估计 \

子设备对主设备的时钟的估计，用于将子设备与主设备之间的同步。\ 268 CLKN 本地时钟 当前的蓝牙设备的时钟。 180 CO Connection-oriented 面向连接 363 COBS 一直开销字节填充法

179 CoD class of device 设备分类 See Bluetooth device class. 参见Bluetooth device class，也缩写为CoD.

19 CODEC Coder DECoder 编解码器 A device that converts analog to digital, and digital to analog for transmission over a digital communications system.

20 COF Ciphering Offset 加密补偿 component An architecture element denoting an identifiable set of software that performs a well-defined purpose.

181 connect to service connect to service The establishment of a connection to a service. If not already done, this includes establishment of a physical link, link and channel as well. 182 connectable devices connectable devices 可连接设备 Any device within range that will respond to paging from an initiator device. 在允许范围内的蓝牙设备，可以响应寻呼信息，并且建立连接。

183 connectable mode connectable mode A device that responds to paging (an attempt to establish a communication link) is said to be in connectable mode. The opposite of connectable mode is non-connectable mode. Connected device A device that is currently connected to the (LocDev. Connection A connection between two peer applications or higher layer protocols mapped onto a channel. Connectionless packet A packet of data is broadcast over the network without targeting a specific recipient to receive the packet. Connecting A phase in the communication between devices when a connection between them is being established. (Connecting phase follows after the link establishment phase is completed.) connectivity A domain of interconnected components that adhere to a defined set of connection rules. The set of rules is termed Connectivity Architecture. Connector An architectural element denoting a path for control or information flow between components. 184 CP Call Processing

185 CP Capability Provider 能力提供者 \device that provides a service to other modules. Protocol stack modules (RFCOMM, L2CAP) are Capability Providers. So are \-AT. In fact, any module that registers a port that other modules can connect to is a Capability Provider.\本地设备的一个模块可以提供服务给其他模块，协议栈模块(RFCOMM, L2CAP)就是个能力提供者。诸如OBEX 和ESC-AT中的应用接口模块（application interface modules）也是个能力提供者。事实上，任何模块只要注册了一个端口，只要以让其他模块连接上去，那么该模块就是个能力提供者。 186 CPU Central Processor Unit The main processing component in a hardware device. 21 CRC Cyclic Redundancy Check 循环冗余校验 这是个添加到数据包中的16位码，用来判断payload数据传送得是否正确，带有CRC数据的payloads仅能由DM, DH 或者DV 包来携带。该CRC码由CRC-CCITT多项式生成，0x11021 (hex)。

187 CTC Computer Test Commands 公用交换电话网，即普通的电话网 188 CTP Cordless Telephone Profile 无绳电话应用

22 CVSDM Continuous Variable Slope Delta Modulation 连续可变斜率增量调制

23 DAC Device Access Code 设备访问码 用于寻呼状态、寻呼扫描和寻呼响应子状态，其代码来自于

设备的蓝牙设备地址（BD_ADDR）。

366 DC Bias Direct Current Bias 直流补偿

24 DCE Data Communication Equipment 数据通信设备

25 DCE Data Circuit-Terminating Equipment 数据电路端连接设备 In serial communications, DCE refers to a device between the communication endpoints whose sole task is to facilitate the communications process; typically a modem

26 DCI Default Check Initialization 缺省的检查初始值 在蓝牙技术中，DCI定义为0x00 (16进制)。 269 DCID Destination Channel Identifier 目的信道标识 对于 L2CAP传送来说，是作为设备的本地终点使用的。它代表接收消息的设备的信道终点。它仅仅是个设备的本地名。参见SCID。 190 DD API Device Driver API

270 destination destination 目标蓝牙设备 用来接收另外一个蓝牙设备的动作。发送动作的设备称为源蓝牙设备（source）。目标蓝牙设备通常是已建立好的连接的一部分，但也有例外。（例如在inquiry / page 过程中）。

191 Device Discovery Device Discovery 设备发现 The mechanism to request and receive the Bluetooth address, clock, class of device, used page scan mode, and names of devices. 设备发现。一种请求和接收蓝牙地址，时钟，设备类别等的机制。

192 Device Layer Device Layer The group of protocols that handles the hardware in a Bluetooth device. The device layer handles components such as the display, keypad, and RF communications.

193 device name device name 设备名称 See Bluetooth device name 参见Bluetooth device name。

194 device security level device security level 设备安全级别 Access to a device can be denied based on the required device security level. There are two levles of device security: trusted device and untrusted device. See also service security level. 根据设定的安全级别，可以拒绝对某设备的访问。有两种级别的设备安全级别：可信任设备和不可信任设备。参见service security level。 27 DH Data-High Rate Data 高速率数据 Data packet type for high rate data 用于异步链接（ACL link）的高速率数据的包类型。DH1包类似于DM1 包，只有一点不同：payload中的信息没有进行前向纠错编码（FEC）。这意味着DH1包可以在一个时隙中，携带多达28字节的信息。DH3包也与此类似，只有一点不同：它可以覆盖多达三个时隙，并且包含185 字节信息。同样， DH5包可以覆盖到五个时隙，并且包含多达341字节的信息。参见蓝牙packet types.

28 DIAC Dedicated Inquiry Access Code 专用查询识别码 用于查询某个特定类型的设备。 195 discoverable device discoverable device 可发现设备 A Bluetooth device in range that will respond to an inquiry (normally in addition to responding to page. Discoverable mode A device that can respond to an inquiry is said to be in a discoverable mode. There are two types of discoverable modes: limited discoverable mode and general discoverable mode. The opposite of discoverable mode is non-discoverable mode. See also silent device. Distpatch Walkie-talkie mode where one subscriber talks and other subscribers listen on the same talk group. 在规定范围内，可以响应查询信息的蓝牙设备。

196 DLCI Data Link Connection Identifier 数据链接连接标识 这是个6位标识，表示正在进行的客户和服务器之间的连接。用于RFCOMM 层。

29 DM Data - Medium Rate Data 中等速率数据 Data packet type for medium rate data 用于异步链接（ACL link）上的中等速率数据的包类型。DM1包仅携带信息数据，包含了一个16位的CRC 码和18字节的信息。它们使用2/3 前向纠错编码（FEC），该包仅仅覆盖到一个时隙。DM3包与此类似，仅仅覆盖三个时隙，可携带多达123字节信息，DM5可以覆盖多达五个时隙，可以携带226字节信息。