Introduction to Nancy Codec compression technology

At present, most of the compression technologies used in the video field belong to technologies similar to the MPEG series. Although MPEG-4 or H.264 / AVC has achieved a high compression ratio, it is still difficult to achieve video transmission on this 2.5G or even 2G mobile c ---MORE---

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German scientists rewrite LED visible light communicati…

German scientists rewrite LED visible light communication data transmission records German researchers have created a new record of 500 megabytes of visible light communication transmission per second. The German Siemens company issued a communiqué on the 15th that scient ---MORE---

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Narrowband Frequency Modulation Principle and SystemVie…

Narrowband Frequency Modulation Principle and SystemView Simulation Common analog modulations include angle modulation (FM / PM) and amplitude modulation (AM / DSB). Unlike amplitude modulation, angle modulation is a non-linear shift of the original modulated signal spectrum ---MORE---

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Differential amplifier circuit basics

Differential amplifier circuit basics The composition of the circuit As shown in (a), when the temperature changes, the collector potential changes, causing the output voltage to change. If the direct coupling method is used, this change will be amplified step by step, makin ---MORE---

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The report says that the 3G system has low recognition …

The report says that the 3G system has low recognition and the WCDMA system accounts for half of the country. On January 18th, the "2009 Mobile Phone Industry Report" was officially released recently. The report summarizes the attention of the majority of users in 2 ---MORE---

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Motorola to sell Android phones to China will be pre-in…

Motorola to sell Android phones to China will be pre-installed Bing search According to news from March 11, Beijing time, according to foreign media reports, Motorola will cooperate with Microsoft to preset Microsoft Bing search and map services on Android phones launched by ---MORE---

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MAX16914, MAX16915 reverse battery connection and overv…

MAX16914, MAX16915 battery reverse connection and overvoltage protection controller, providing ideal diode characteristics With a wide range of -75V to + 44V overvoltage and reverse battery protection Maxim's latest automotive protection devices use back-to-back pFETs to ---MORE---

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