Software (protocol stack) unit for bluetooth technology tws earbuds disconnecting

The software (protocol stack) unit of Bluetooth is an independent operating system, not tied to any operating system. It must conform to the established Bluetooth specification. The Bluetooth specification is a protocol developed for wireless communication in the personal area. It consists of two parts: the first part is the core (Core) part, which specifies such as radio frequency, baseband, connection management, service discovery (service discovery), transport layer and the Components such as interoperability and interoperability between different communication protocols: www.bjbjaudio.com

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The second part is the protocol subset (Profile) part, which is used to specify the protocols and processes required by different Bluetooth applications (also called use modes). The protocol stack of the Bluetooth specification still adopts a layered structure, which completes the filtering and transmission of data streams, frequency hopping and data frame transmission, connection establishment and release, link control, data disassembly, quality of service (OoS), protocol multiplexing and demultiplexing functions. When designing protocol stacks, especially high-level protocols, the principle is to maximize the reuse of existing protocols, and the high-level application protocols (vertical layers of the protocol stack) all use common data links and physical layers. www.bjbjaudio.com

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The Bluetooth protocol can be divided into 4 layers, namely the core protocol layer, the cable replacement protocol layer, the telephone control protocol layer and the adopted other protocol layers. In the Bluetooth protocol stack, there is also a host control interface (HCI) and audio (Audio) interface. HCI is the command interface to the baseband controller, link manager, and access hardware status and control registers. Audio data can be passed between one or more Bluetooth devices using an audio interface, which is directly connected to the baseband. www.bjbjaudio.com

Through Bluetooth technology, various portable computer equipment and cellular mobile phones can be connected with wireless links, so that the computer and communication are closely integrated, so that people can exchange and transmit data and information anytime and anywhere. Therefore, although the bluetooth technology appeared not long ago, it has received the attention of many industries. According to the International Development Center (IDC) forecast, by 2004, Bluetooth will be embedded in 1.02 million devices in the United States and 4.49 million devices in the world: by 2006, its market size will reach 700 million Dollar. A new era of wireless communications has begun. www.bjbjaudio.com               <a style="opacity:0.0;color:#ffffff">tws earbuds disconnecting</a>

The bluetooth technology has extremely broad and attractive application prospect in the telecommunication industry, the computer industry and the home appliance industry, and it will also play a huge role in promoting the future wireless mobile data communication business. Bluetooth technology will develop by leaps and bounds. However, it still has a lot of application technical details to solve and is still a developing technology. For example, in order to prevent mistransmission or interception of voice and data information, users must set a common frequency for various devices they use in advance, that is, different users have different frequencies, so as to ensure that the wireless connection does not occur. misrepresented or abused. www.bjbjaudio.com

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