A memory-based high-speed digital delay line with a large adjustable length. - Hans Jürgen Mattausch; Fred Matthiesen; Jutta Hartl; Reinhard Tielert; Erwin P. Jacobs (IEEE J. Solid State Circuits, 1988)

A single-chip adaptive DPCM video codec. - Matthias Schobinger; Bernd Zehner; Fred Matthiesen; Ulrich Totzek; Jutta Hartl; Udo Reimann (IEEE J. Solid State Circuits, 1989)