What Is a USB Wireless Audio Adapter?

Bluetooth adapter index code products are suitable for interface converters of Bluetooth devices. The Bluetooth adapter uses a universal short-range wireless connection technology. It uses the same 2.4GHz free-of-charge and application-free radio frequency band as the microwave, remote control, and some civilian wireless communication equipment. Interference, so with 1600 difficult frequency hopping and encryption technology.

Bluetooth adapter

Bluetooth adapter refers to

Bluetooth is

The line types can be divided into ISA bus, PCI bus and USB bus.

The ISA bus transmits data in 16 bits, and the nominal speed can reach 10M.

The PCI bus transfers data in 32 bits, which is faster. Currently on the market are mostly 10M and 100M PCI buses. With the gradual popularization of the USB interface, the existing Bluetooth adapters are basically USB buses.

USB bus is Universal Serial Bus,

Under the condition that the required bit error rate is guaranteed, the minimum required input power is received. Receive sensitivity is generally expressed in dBm, which is the absolute power based on lmW optical power, or written as

Among them, P _min refers to the minimum average power that the receiver can receive under the condition of a given bit error rate. For example, given the negative 9th power of 10, the minimum average power that the receiver can receive is InW (ie, the negative 9th power of 10),

Bluetooth really only has 2 transmission protocols

CLASS 1100M standard

CLASS 210M standard.

Support new Bluetooth technology, Broadcom 2045 chip, provide legal address code

• With Widcomm 4.0 genuine driver software, perfect support for VISTA

• Bluetooth V2.0 + EDR technology

• USB2.0 specification, backward compatible with USB1.1 / 1.2

• USB bus-powered, no need to connect power, LED indicator

• Ultra-thin, lightweight, built-in antenna, no USB connection required, easy to use and carry

• Frequency: 2.400-2.4835Ghz

• Propagation frequency: frequency hopping

• Spread Spectrum (FHSS)

• Transmission rate: 3Mbit / s (EDR), faster transmission speed

• Longest working range: 100m

• Security: 128 bits

  Step 1: First understand the version of the system installed on the computer to be used. If the XP system SP2 is the best, you do not need to install a Bluetooth driver-just plug the Bluetooth adapter into the computer's USB interface.

  If the computer is under XP 2, you need to install a Bluetooth driver on the computer-without inserting the Bluetooth adapter into the USB port on the computer, first insert the driver CD into the optical drive, follow the prompts, and then you will be prompted to insert the Bluetooth adapter Then plug the Bluetooth adapter into the USB port on your computer, and the computer prompts you to find new hardwareselect the next step all the wayindicating that the new hardware is ready for use.

  After the Bluetooth adapter is plugged in, the computer will prompt the discovery of new mobile hardware, and a small blue icon will appear in the taskbar at the lower right corner. Click the blue icon with the mouse to pop up the menu bar and select "Add Bluetooth Device" above. At this time, a dialog box appears on the computer, prompting that the Bluetooth on the mobile phone must turn on the Bluetooth of the Bluetooth device you turned on. On the computer, select "Bluetooth device turned on" and press "Next". At this time, the Bluetooth adapter on the computer automatically searches for the mobile phone. Wait a moment, the computer displays the search for the Bluetooth device you turned on, and the mobile phone also displays the computer. Name, double-click the "your Bluetooth device" icon on your computer, and follow the prompts to set it up. A dialog box asking for a password will pop up on your computer. Select "Manual encryption by yourself", and enter "123" in the space at the back, and click Next. The phone also displays a Bluetooth device found and prompts for the password. Similarly, enter "123" on the phone and make sure to wait a moment. The computer and phone will automatically match. When the "Bluetooth device is added and ready to use" is displayed at the bottom right of the computer.

  You can also pair your computer with a Bluetooth device. With the Bluetooth adapter plugged into your computer and you can use the Bluetooth adapter, enter the "connection"-"Bluetooth"-"matching device"-"search for device"-find XXX (meaning you Computer name)-enter the password-the computer prompts that a Bluetooth device needs to be matched-also enter the password-the addition was successful.

  If you need to download a file to a Bluetooth device, first find the file you want to download on your computer, right-click the file icon, and then select the send method with the Bluetooth icon in "Send to". At this time, you must make sure that the Bluetooth on your Bluetooth device is turned on, and follow the instructions of the computer to perform simple operations. The Bluetooth device will automatically receive the file-automatically save the file to the corresponding folder. After saving, it will prompt you whether to use it immediately. Select Yes to use it immediately. If you choose No, you only need to enter the corresponding folder, such as the one you uploaded. It is an MP3 file, you can enter the "Sound" folder in the "File Manager" to play and view.

  If you need to transfer the file captured by the open Bluetooth device to your computer, first select the file on the Bluetooth device-press More-Send-Via Bluetooth-and send it immediately. Then you can view it in the corresponding folder on your computer.

  The Bluetooth adapter has many advantages such as convenience and cheapness, and is mainly used in the following areas:

  1. File transfer-transfer files across different software platforms (such as transferring business cards from mobile phones to handhelds)

  2. Data synchronization-Supports information synchronization between different operating platforms (such as data synchronization between handheld computers and computers, data synchronization between mobile phones and computers)

  3 Voice transmission-Transmit sound information via Bluetooth (such as Bluetooth headset support)

  4 Analog serial port-wireless simulation

  Some Bluetooth adapters cannot automatically install drivers under Windows. The following describes how to install such Bluetooth adapter drivers.

  Open the device manager (Win start key + Pause / Break key hardware device manager), find the Bluetooth device with abnormal driver, open its properties details.

  E.g

  "USBvid_0a5c & PID_2100", note the vid and PID of this device, the value is a four-digit hexadecimal number.

  Start Run (Win key + R):

  notepad% systemroot% \ inf \ bth.inf

  Find [Sony.NT.5.1], add a line below it, and fill in the values you just saw with vid and PID:

  USB Bluetooth Device = BthUsb, USBVid_0a5c & Pid_2100

  Return to the device manager, click to update the device driver, select automatic installation, and you are done.