Digital mobile TV receiver chip manufacturer DiKang (DiBcom) recently unveiled the "2010 Third Mobile TV Industry Summit Forum" in Qingdao. Ms. Xu Xiaye, General Manager of Dikang China, delivered a wonderful speech titled "Bringing New Development Opportunities to the Digital Mobile TV Market in China and the World". It was also announced that the DIB10098 series of Dicom's programmable mobile TV solution now fully supports the Chinese CMMB standard. And will soon launch products supporting China's CTTB and North American ATSC terrestrial digital TV standards.

In the speech, Ms. Xu Xiaye focused on the DIB10098 chip, which is a representative of Dikon. It is based on the programmable Octopus platform and supports CMMB, DVB-T and ISDB-T standards, which means that non-mobile phone terminal manufacturers only need to develop One hardware platform can meet the needs of the global mobile TV market. In addition, DIB10098 not only supports VHF and UHF bands, but also supports L-band and S-band, which allows terminal manufacturers to support all mobile TV standards including satellite signals without adding any external components. Another advantage of DIB10098 is the integration of PMU and conditional access decoder, which greatly reduces the technical threshold of terminal manufacturers. They only need to purchase a decryption chip integrated with Nagra encryption algorithm from China Broadcasting Corporation and embed it on the DIB10098 platform to complete the entire development work easily.

Ms. Xu Xiaye emphasized that with the vigorous development of the digital mobile TV market in China, the popularity of Dikang Company in China is also increasing. More and more customers start to choose our solutions to develop business. This aspect is the unique high flexibility advantage of our programmable platform. On the other hand, it comes from the two technical advantages of high-speed mobile and diversity reception.

Due to the use of embedded digital patent processing chip, the Dicon solution has greatly improved the reception performance of TV signals under harsh conditions such as signal attenuation, multi-path, common channel and peak noise. In addition, the enhanced digital processor with patented technology can also effectively compensate for the inter-carrier interference caused by the Doppler effect, thereby significantly improving the reception quality in high-speed motion. These outstanding advantages have been and are achieving the glorious performance of Dicon in the mobile vehicle market, with top customers including Mercedes-Benz, BMW, and Audi.

At present, Dikang is recognized by the industry as the most leading and mature enterprise in the application of antenna diversity reception technology in the field of digital mobile TV reception. Dicom's diversity reception uses a maximum ratio combining algorithm. Dual-antenna diversity reception controls the gain of each branch separately to obtain the best signal for different antennas. It also provides the signal-to-noise ratio of each branch signal in real time. After the signal is phase-adjusted, with the appropriate gain coefficient, after combining in phase, a high-quality signal with the maximum signal-to-noise ratio is obtained. For environments with large channel attenuation or higher speed requirements, multiple ICs can also be used to achieve diversity reception in cascade mode, that is, each chip can combine the signal received by itself with the maximum ratio of the signal received by other chips. , Which is also the patented technology of Dicon.

These technically differentiated advantages will continue to promote Dikang's success in the CMMB in China and even in the CTTB market in the next stage. These mature technologies will drive market segments including handheld mobile devices, in-vehicle (including public transportation, urban rail transit, and commercial passenger vehicles), home set-top boxes, and buildings, and will be fully integrated with most mainstream back-end chips on the market.

Recently, Mr. Yannick Lévy, CEO of Dicom, said at the conference celebrating the tenth anniversary of the company: "Providing high-quality receiving products for various types of video screens is Dikang ’s constant commitment to the fixed and mobile TV markets. We are able to We are proud to provide the most advanced technology to customers in the global market and promote the development of this industry. "For more information, please log in to the electronic enthusiast website (http: //)

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