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商品描述
This book provides a simplified description of Bluetooth technology, services, and profiles. You will find out how Bluetooth devices automatically locate nearby Bluetooth devices, authenticate them, discover their capabilities, and the processes that are used to setup connections with them. Discover how Bluetooth's spread spectrum technology allows it to operate with other devices including wireless LAN, microwave ovens, cordless telephones, and wireless video cameras. You'll discover how the Bluetooth specification now allows devices to adapt their frequency transmissions to avoid interfering with these devices. You will learn about the discovery (inquiry) phase and the connection (paging) process that devices use to find and connect to other devices. The modulation types and packet structures are explained along with how the use of multislot RF packets can dramatically increase the data throughput between devices. Learn how enhanced data rate (EDR) can increase the data transmission rate from 1 Mbps to 3 Mbps. The protocol layers are explained including the RF baseband (physical), link manager, L2CAP (transport), and upper session and application layers. You will learn about the many Bluetooth profiles that define the services and applications that Bluetooth can provide. Bluetooth security processes such as pairing (authentication), privacy (encryption), and the new simple pairing processes are described. Discover that Bluetooth has evolved and continues to evolve from basic 1 Mbps Piconet services to the proposed Bluetooth 480 Mbps UWB services.
商品描述(中文翻譯)
本書提供了藍牙技術、服務和配置文件的簡化描述。您將了解藍牙設備如何自動定位附近的藍牙設備、對其進行身份驗證、發現其功能,以及用於與這些設備建立連接的過程。
了解藍牙的擴頻技術如何使其能夠與其他設備一起運作,包括無線局域網、微波爐、無線電話和無線攝影機。您將發現藍牙規範現在允許設備調整其頻率傳輸,以避免與這些設備產生干擾。您將學習設備用於尋找和連接其他設備的發現(查詢)階段和連接(尋呼)過程。
調變類型和數據包結構將被解釋,並說明如何使用多槽無線頻率(RF)數據包可以顯著提高設備之間的數據吞吐量。了解增強數據速率(EDR)如何將數據傳輸速率從 1 Mbps 提高到 3 Mbps。協議層將被解釋,包括 RF 基帶(物理層)、鏈路管理器、L2CAP(傳輸層)以及上層會話和應用層。
您將了解許多定義藍牙可以提供的服務和應用的藍牙配置文件。藍牙安全過程,如配對(身份驗證)、隱私(加密)和新的簡單配對過程也將被描述。
了解藍牙如何從基本的 1 Mbps Piconet 服務演變並持續演變至提議的 480 Mbps UWB 服務。