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Newsletter "SEI NEWS" 2014

Home > Company Information > SEI WORLD > Back number > Vol.444

[Newsletter "SEI WORLD" Vol.444]

IP Set Top Box

IP Set Top Box

Viewers formerly enjoyed watching video data transmitted through a broadband network on their television sets. However, the recent spread of mobile terminals allows users to also enjoy video data on their smartphones and tablets. This time, we would like to introduce our IP set-top box, which is indispensable for integrating this expanded system.


What is the IP Set-Top Box?

The IP set-top box is a receiving terminal for IPTV service that distributes video content to TVs through IP broadband network. Using an IP set-top box, users can enjoy general television programs, video on-demand (VOD), which allows users to select and watch various video contents when they want, and other cloud services such as community information, games and shopping.

While conventional IP set-top boxes offer a video service only to the TV connected to it as shown in the figure, we have provided IP set-top boxes with a home server function (*1) that enables video distribution to personal computers and tablets. Furthermore, we have developed a new IP set-top box that supports 4K (*2) video.



*1 Home server function:
Function distributing various data to devices connected to a home network
*2 4K(UltraHD 3840x2160pixels):
4K resolution has about 8.29 megapixels, which is about four times as many pixels as Full HD. This large number of pixels provides high-resolution, high-precision and high-quality images even on a large display. A frame rate of 60 frames per second, twice that of conventional TVs, is essential for displaying fast-moving video images such as sports broadcasting in such a high resolution.

■StreamCruiser™ SmartTV 3200 (ST-3200)

StreamCruiser SmartTV 3200

ST-3200 is an IP set-top box based on Android OS 4.0. We commenced shipment of ST-3200 for the video streaming service of “Hikari TV” provided by NTT Plala Inc. from June 2013. ST-3200 not only offers an excellent video recording function but also supports smart TV (*3) services such as “Hikari TV games,” which are cloud-based games for TV, and “Hikari TV Apps,” which can be enjoyed on a TV screen like Apps that are popular on smartphones or tablets.

Merits of ST-3200

1.Triple tuner that allows users to record two channels simultaneously while watching a third TV channel

2.Streaming video content to smartphones and tablets using DLNA (*4)

3.Hardware that operates 10 times faster than its predecessors and in-house developed middleware (*5)

*3 A smart TV is a highly-functional TV that pursues a new direction, which offers functions such as a web browsing function or Apps utilizing function, thereby Apps are downloaded in the same manner as for smartphones and then enjoyed on the screen.
*4 DLNA (Digital Living Network Alliance) is a nonprofit organization that defines a method of mutually providing music and video content between audiovisual appliances such as televisions and HDD recorders, and digital devices connected to a home network such as personal computers and smartphones. DLNA also refers to the method itself.
*5 Middleware is computer software that operates between an operating system (OS) and applications, including video viewing and recording function, DLNA function, copyright control function, video content protection function, and remote firmware update function.

■StreamCruiser™ SmartTV ST4100 series

The ST4100 series is an IP set-top box series that supports the decoding of 4K ultra high definition video content at 60 frames per second (4Kp60), HEVC/H.265 (*6) incorporating the latest video compression technology, and HDMI 2.0 (*7). The new set-top box offers an unparalleled high-quality and realistic viewing experience for subscribers, receiving and displaying 4Kp60 content being sent over a broadband network in real time. We provided the StreamCruiser™ SmartTV ST4100 series as IP set-top boxes for the 4K VOD streaming trial service of “Hikari-TV” that started from April 2014 by NTT Plala Inc.

Merits of ST-4100

1.Receiving 4K ultra high definition video content at 60 frames per second being sent over a broadband network, and outputting the video content to display on 4K-compatible television sets in real time

2.Saving the bandwidth of video data being sent over a broadband network by supporting HEVC/H.265 that incorporates the latest video compression technology

*6 HEVC(High Efficiency Video coding):
Its video compression performance is about double that of conventional H.264.
*7 HDMI2.0:
The latest standard of the HDMI specification, which supports 4K resolution at 60 frames per second.


We will continue to provide high quality and easy-to-use products in order to support video streaming services, which are expected to become even more sophisticated in the future. (Network Systems Division)

・Android is a trademark or registered trademark of Google Inc. in the United States and/or other countries.
・DLNA is a trademark or registered trademark of Digital Living Network Alliance in the United States and/or other countries.
・HDMI is a trademark or registered trademark of HDMI Licensing, LLC in the United States and/or other countries.

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