Novel A/D converter with median filtering of programmable window length

B. D. Liu, C. S. Tsay, C. H. Chen, R. L. Fuh

Research output: Contribution to journalArticlepeer-review


Median filtering with programmable window length is needed for environments with impulse noises of different lengths. The paper proposes a new architecture for an A/D convertor with median filtering of programmable window length. Both digital and analogue medians are available at the output. Previous architecture was implemented using a positive boolean function (PBF) circuit which requires a large area for large window length. In this architecture, the majority circuit, which has a smaller area and faster speed, is used to replace the PBF circuit. The throughput is independent of the window size and the hardware complexity is linearly dependent on the window size. The silicon area of this architecture is small and it is therefore suitable for monolithic implementation.

Original languageEnglish
Pages (from-to)621-624
Number of pages4
JournalIEE Proceedings, Part G: Circuits, Devices and Systems
Issue number6
Publication statusPublished - 1992 Jan 1

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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