After the digital television, digital television technology in the software technology plays a more important position. In addition to audio and video hardware decoding from the outside, including television content, reproduce, interface implementation, data broadcasting services for implementation, until the dream box and personal computers and Internet connectivity and the Internet are required to implement by software, as follows: a hardware driver layer software: Drivers drive hardware features, such as radio frequency demodulator, demultiplexer transmission, A / V decoder, OSD, the video encoder.
Embedded real-time multitasking operating system: embedded real-time operating system is relative to the desktop computer operating systems, it is not installed on the hard drive, the system compact and relatively simple functions, resources, and open capital small, easy to cure in the memory in.
The role of embedded operating systems and PC-DOS and Windows on a similar man-machine dialogue through which the user, the user assigned to complete the designated. A number of ways to design a receiver, such as: keyboard, mouse, voice, touch screen, infrared remote control.
Middleware: open service platform is characterized by product development and production of a business platform based on open service platform for every aspect of independent operation mode, each link has its own profits, can produce more suppliers. Only an open dream box business platform to ensure scalability, to ensure the effective recovery of investment.
Upper layer application software: implementation of service providers and service functions, such as: electronic program guide, near video on demand, video on demand, data broadcasting, IP phones and video phones. Upper layer application software is independent of the STB hardware, which can be used for a variety of STB hardware platform, eliminating the dependence on hardware applications.
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