Wireless Gaming Keyboard is a keyboard disk with no direct physical connection to the computer, through infrared or radio waves to send input information to a special receiver. Bluetooth devices, to be precise. The so-called Bluetooth technology, in fact, is a short-range radio technology, the use of "Bluetooth" technology, can effectively simplify the communication between mobile communication terminal devices such as palm computers, laptops and mobile phones.The so-called Bluetooth technology, in fact, is a short-range radio technology, the use of "Bluetooth" technology, can effectively simplify the communication between handheld computers, laptops, mobile phones and other mobile communication terminal devices, also can successfully simplify the above devices and the Internet communication between the Internet, Thus, the data transmission between these modern communication devices and the Internet becomes more rapid and efficient, which broadens the way for wireless communication. Bluetooth supports point-to-point and point-to-multipoint communication using a decentralized network structure, fast frequency hopping and short packet technology, and works in the 2.4ghz ISM (industrial, scientific, and medical) band used worldwide. Its data rate is 1Mbps. Time division duplex transmission scheme is used to realize full duplex transmission.
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In terms of upstream and downstream, although some of the short-term single effects continued to ferment, Taiwan’s listed LED chip makers reported revenue of 2.64 billion yuan in December, a decrease of 16.5%, and an annual decline of 30.2%. The agency analyzed that the LED die maker’s December revenue declined by more than 30% in December. The main reason was that in December 2010, it was demanded by the backlighting products for tablet PCs and LCD TVs. The revenue base period was relatively high, but since last year, the market has faced In the oversupply situation, the price of the product has fallen sharply, and the revenue has been affected. For the whole year of 2011, LED chip plant revenue reached NT$45.4 billion, a slight decrease of 7% compared with 2010.
In contrast, the LED package vendors provided to the terminal application market are relatively less affected by the oversupply of upstream sources, and benefit from the recent replenishment demand in the backlight market. In December, the revenue was NT$3.90 billion, and the monthly decline was 8.66%. 10.3%. Looking at the whole year of 2011, LED packaging plant revenue reached NT$54.92 billion, a slight decrease of 3% compared with 2010.
The industry estimates that the domestic LED lighting market will reach US$7.6 billion by 2015. As China has a complete lighting production base and supply chain, coupled with the market potential of domestic demand, many manufacturers are optimistic about the development of the domestic LED lighting market and speed up the layout, including Jingye cooperated with Sunshine Lighting and NVC Lighting, and Yiguang teamed up with Shanghai Yaming to cooperate with NVC Lighting. Philips, a lighting brand manufacturer, announced recently that the establishment of an LED lamp factory in Chengdu is also the second major investment of Philips in China. In addition, LED manufacturers such as Guang Baoke and Lunda have also actively entered the supply chain of international manufacturers. Each target is continuously pulling up the proportion of revenue from lighting products, stepping up training, and early deployment of the lighting market.
Now there is the latest technology 2.4G wireless keyboard and Wireless Gaming Mouse, what is 2.4G, it is actually a wireless transmission technology, 2.4G is on behalf of a data transmission rate, now on the market 2.4G wireless keyboard and mouse is a USB receiver, mini, general plugged in the computer, can be used directly.Bluetooth devices of any brand can be charged in up to three hours. You can usually power off by seeing the indicator on the keyboard change color or turn off. Charging a product for a long time can cause serious damage to it. If you're not using a wireless keyboard for a long time, it's best to charge your device once a month or so. In case its built-in battery goes dormant and cannot be recharged.
Taiwan's listed LED makers report a 11.99% decline in revenue in December 2011
According to statistics, in December 2011, the total revenue of listed Taiwanese LED makers was about NT$6.54 billion, a monthly recession rate of approximately 11.99%, and an annual decline rate of 19.6%. The main reason is that the overall market demand continues to be sluggish. LED die Compared with the growth of package manufacturers' revenue that failed to extend for the first half of the year, many LED manufacturers are still facing inventory pressure and are still actively seeking breakthroughs.