A median peak detecting analog signal processor for hard disk drive servo. - Krhishnaswamy Nagaraj; Stephen H. Lewis; Robert W. Walden; Glen E. Offord; Reza S. Shariatdoust; Jyoti A. Sabnis; Robert O. Peruzzi; Jeffrey R. Barner; Joseph Plany; Robert P. Mento; Vafa A. Rakshani; Richard W. Hull (IEEE J. Solid State Circuits, 1995)