Canadian broadcast chip designer Gennum has developed a chipset for converting and scaling many video standards, including high definition, for broadcast systems and applications, such as plasma screen and projectors, and home theatre systems. It could also be used in DVD players to link to high definition TV sets in the future.
The chipset consists of three chips — a motion co-processor, de-interleaver and a scaling co-processor — that can be used on their own for simpler applications.
The resolution is 10bit, which is sufficient for all standard definition applications, says Vince Harradine, manager of video digital signal processor product development at Gennum. And it is also working on integrating the three units into a single chip with14bit resolution for high definition applications in 0.15µm or 01.3µm process technology.
The motion co-processor has adaptive edge detection for each pixel. The de-interleaver allows the signal to be converted to and from progressive formats for the PC and in video editing and interleaved for TV display. The scaling is used to match the image to the screen size.
All three chips are controlled via a serial line and a 3bit parallel bus to set the I/O formats and scaling parameters.