Bluetooth adapter USB interface to see his speed speed through the window of the test results of the software the right, if you can reach 480Mb / s then the USB interface 2.0 speed full meet the operation, Bluetooth adapter Naturally, this is based on the 2.0-standard products.
Speed test of the USB interface to 480Mb / s to the Bluetooth adapter supports the 2.0 standard, or can only be regarded as a low-speed adapter.
Seven, optional Bluetooth adapter from the misunderstanding doubts:
I often hear some users in the pursuit of the instructions on the label when choosing a Bluetooth adapter transmission distance, in fact, this distance is only a point of reference, written 100 meters Bluetooth adapter products are not able to really reach 100 meters.
Well-known Bluetooth products in accordance with the transmission distance can be divided into Class 1 (100 meters), Class 2 (20 ~ 30 meters) and Class 3 (10 meters) three different types of chip Bluetooth products can really decide The distance of the actual launch of the product, so say that even if you buy a Bluetooth adapter supports Class 1, Bluetooth devices do not support is no good.
Your Bluetooth adapter and Bluetooth products both are able to support the transmission distance to be able to reach 100 meters in Class 1, but now the market basically did not see this support Class 1 products such as mobile phone or PDA. Support also need more power in order to achieve the 100 meters, which will greatly shorten the battery life of mobile devices, so buyers should not blindly pursue the 100 meters Bluetooth.
The transmission distance can be enough, without the blind pursuit of long-distance Bluetooth transmission equipment of 100 meters.
Eight, the choice of drive:
To get the Bluetooth adapter is functioning properly should correctly install the corresponding driver, some manufacturers device drivers can be the operating system automatically recognize and install the trouble of eliminating the need for us to install the driver. In addition, install the Bluetooth management tools Do not install more than one, so that compatibility conflicts between different Bluetooth management tools, thus affecting the normal use of the equipment.
Only needs to be installed in the computer to a Bluetooth management tools, to buy other Bluetooth devices to make the choice of brand products, or you'll fill of installed drivers suffer.
Do not look at the price of the Bluetooth adapter is less than 100 yuan, but if the inappropriate choice of the one hand affect the user's actual use, on the other hand, become taken advantage of to spend the high prices to buy the low performance products. This paper introduces the need to pay attention to key points the user to select the Bluetooth adapter as well as several key parameters, I hope this can help more of our friends choose to go to their satisfaction with the product.
electronic products into the Chinese market. Asian electronics trade show held in August, the China Council for the Promotion of International Trade will come forward to invite the U.S. electronics manufacturers to come to participate in the exhibition, the exhibition the Chinese name was changed to electronic products in Asia trade Exhibition Electronics Show. "Li Baosheng recently said in a press conference, Chinese exports of electronic products market, the former four are the United States, Europe, Japan, Southeast Asia. Because of China's electronic products are mostly exported to the United States, the United States a larger deficit with China. China welcomes the U.S. electronic products entering the Chinese market. In early May, president of the China Council for the Promotion of International Trade will be led to visit the U.S..
In support of the Ministry of Information Industry and China Council for the Promotion of International Trade, the Asian electronics trade show will be held in Shenzhen from August 27 to 30. Li Baosheng, said: "China Council for the Promotion of International Trade, selected Asian electronic products trade show, and invited the U.S. electronics manufacturers to participate in the exhibition will be an unprecedented grand."
Asian electronics trade exhibition organized by the China Council for the Promotion of International Trade Electronics & Information Industry Sub and Guangzhou Juliu media, with a total exhibition area of 100,000 square meters, 3500 Exhibition location, is one of the most important international exhibitions of Chinese and Asian electronic products. The exhibition will have exhibitors from Japan, Korea, the United States more than 40 countries and regions, procurement, and showcase of products is expected to more than 800 categories 1.2 million kinds.
According to the statistics of the China Council for the Promotion of International Trade Electronics & Information Industry Sub electronic information industry has become one of the important pillar industry of China. In 2005, the national electronic information products export reached $ 250 billion industry scale ranks second in the world, accounting for one-third of the country's total exports this year expected to reach $ 300 billion
Electronics is distinct from electrical and electro-mechanical science and technology, which deals with the generation, distribution, switching, storage and conversion of electrical energy to and from other energy forms using wires, motors, generators, batteries, switches, relays, transformers, resistors and other passive components. This distinction started around 1906 with the invention by Lee De Forest of the triode, which made electrical amplification of weak radio signals and audio signals possible with a non-mechanical device. Until 1950 this field was called "radio technology" because its principal application was the design and theory of radio transmitters, receivers and vacuum tubes.
Today, most electronic devices use semiconductor components to perform electron control. The study of semiconductor devices and related technology is considered a branch of solid state physics, whereas the design and construction of electronic circuits to solve practical problems come under electronics engineering. This article focuses on engineering aspects of electronics.