An FIR-Based Video Format Conversion IC Design

High quality and versatile video format converters play an indispensable role in the emerging DTV age. This paper presents our design of an IC capable of cross-converting between various DTV standards. A multi-phase FIR-based filtering algorithm is developed to perform the video scaling tasks. Compared with other methods, this approach is relatively easy for hardware implementation and leads to superior robustness and fairly good output qualities. In the paper, we explain the whole architecture of our IC and some of its key components. The design is a suitable and high quality solution to consumer applications. Meanwhile, it can also serve as a building block for the more advanced systems with a motion-compensated de-interlacing stage.