Recently, through the preliminary statistics of the patent website of the State Intellectual Property Office, the total number of lighting design patents in 2016 totaled approximately 21,289, sorted into the following categories:
Among them, about 8,000 applications were applied through the express application channel of Guzhen Town, Zhongshan City, accounting for 37.5% of the total application. It reflects the absolute superiority of Zhongshan Guzhen in lighting design patents.
Focusing on the top ten companies and individuals in the design of lighting products in 2016, the top ten applicants are:
In the year of 2016, there were 3,387 patent applications for the design of “Ceiling Lamps†in the country. The statistics by region are as follows:
The number of patent applications and authorizations are two important indicators of Zhongshan's technological innovation capability and level. According to statistics from Zhongshan Science and Technology Bureau, in 2016, the number of patent applications in Zhongshan City reached 35,248, an increase of 26.46%. Among them, the number of invention patent applications reached 7,597, a year-on-year increase of 56.09%. Last year, the number of patents granted in the city reached 22,127, a decrease of 0.34%. In 2016, the total number of patent applications in Guzhen was the first in the city.
According to the data, the top five patent applications in 2016 were 9194 in Guzhen, 4,697 in Torch Development Zone, 3,652 in Xiaolan Town, 2,664 in Henglan Town, and 1,857 in Dongfeng Town.
Last year, the number of patent applications in Zhongshan City was the highest in the town, reaching 9194, an increase of 39.56%. Judging from the classification of patent applications, Guzhen Town patent applications mainly focus on appearance applications. At this stage, most of the profits of lighting are derived from design, and the design capability is directly related to the development of lighting companies. As an ancient town of “lightsâ€, there were 22 appearance patent applications per day last year. There were 8153 appearance patent applications in the whole year, accounting for 88.68%.
In terms of the amount of patent authorization, Guzhen Town's patent authorization is mainly concentrated on the appearance application. There are 6,982 appearance patent licenses in the whole year, accounting for 93.12%.
Source: Guzhen Lighting News Editor: Li Lin
According to the difference of the bit weight network, different types of DACs can be formed, such as the weighted resistance network DAC, the R-2R inverted T-shaped resistance network DAC, and the single-value current type network DAC. The conversion accuracy of the weighted resistance network DAC depends on the reference voltage VREF, and the accuracy of the analog electronic switch, operational amplifier, and each weighted resistance value. Its disadvantage is that the resistance value of each weight resistor is different. When the number of digits is large, the resistance value is very different, which brings great difficulties to ensuring accuracy, especially for the production of integrated circuits. Therefore, the integrated DAC This circuit is rarely used alone in.
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