The 2010 World Cup is about to launch the ISDB-T digital TV standard in the Brazilian market
As one of the four mainstream mobile TV standards in the world, ISDB-T originated in Japan and gradually spread to other countries, becoming the new pole of mobile TV standards. ISDB-T is very advanced in technology, audio coding adopts MPEG-4 AAC, and video coding has two standards because of different positioning, namely MPEG-2 and H.264. Among them, H.264 encoding is mainly used for mobile terminal reception, such as Japan's One-Seg mobile TV signal. At the same time, ISDB-T can also perform audio, data and other broadcasts separately, making this mobile TV standard more widely used.
In order to greet the 2010 World Cup as a sports feast, the football powerhouse Brazil began as early as 07 years of mobile TV network layout. This network uses the ISDB-T standard and is expected to complete the construction of base stations this year, becoming a mobile TV network covering all of Brazil. ISDB-T was put into commercial use in Japan in 2006 and has been in operation for more than 3 years. The technical details have been perfected and the system is highly mature. In addition, the ISDB-T technical standard has inherent advantages such as wide coverage of base stations and a large number of load channels. It is very suitable for developing countries like Brazil with a large land area. According to forecast data, the potential mobile TV users in the Brazilian market exceed 120 million. The ISDB-T network put into commercial use before the 2010 World Cup will bring an unprecedented experience of watching football matches for Brazilian national fans.
In a complete mobile TV system, the most important link is the receiving terminal. Rockchip mobile phone chip RK2718 is fully compatible with the ISDB-T mobile TV standard in the Brazilian market. It is reported that related models using the chip are currently undergoing comprehensive testing in the Brazilian market, which will provide a cost-effective receiving terminal for the Brazilian ISDB-T network. The four mainstream mobile TV standards in the international market are CMMB, ISDB-T, T-DMB, and DVB-T. Because their standards are very different, most terminal models are difficult to switch between multiple networks. Rockchip RK2718 chip fully supports 4 mainstream mobile TV standards, breaking the geographical limitations of each network, coupled with the characteristics of rapid integration, RK2718 has great advantages over other chips when creating mobile TV mobile phone terminals.
Rockchip RK2718 inherits the powerful audio and video functions of RK27 series chips, and the multimedia playback capabilities of mobile phones using this chip are comparable to MP4. The audio formats supported by RK2718 are MP3, WMA, OGG, AAC, AAC +, RA, APE, FLAC, and are equipped with PlayFX sound effects; video formats include RM, RMVB, AVI, FLV, VOB, DAT, MPG, MP4, WMV, ASF, 3GP, etc., the highest resolution can reach 800 × 480. From the parameters, we can see that the audio and video functions provided by Rockchip RK2718 are completely superior to the existing mainstream high-end mobile phone platforms.
Rockchip recently released three mobile phone chips. In addition to the RK2718 that will shine in the Brazilian market, the RK2728 that focuses on the mid-range and the RK2808 that is tailored for the Android system will also unveil the mystery. The positioning and emphasis of the three chips are different, but they all have good audio and video playback capabilities and full-standard mobile TVs. Soon we will see mobile phones using this series of chips. Through years of experience, technology, and resource accumulation in the audio and video market, Rockchip has completed the transformation to a diversified chip brand based on audio and video chips, and began to lay out an international development route.
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