Synchronization of fractional interval counter in non-integer ratio sample rate converters. - Jaakko Ketola; Jouko Vankka; Kari Halonen (ISCAS (2), 2003)

A digital quadrature modulator with on-chip D/A converter. - Jouko Vankka; Johan Sommarek; Jaakko Ketola; Ilari Teikari; Kari A. I. Halonen (IEEE J. Solid State Circuits, 2003)

A digital modulator with bandpass delta-sigma modulator. - Johan Sommarek; Jouko Vankka; Jaakko Ketola; Jonne Lindeberg; Kari Halonen (ESSCIRC, 2004)

Transmitter utilising bandpass delta-sigma modulator and switching mode power amplifier. - Jaakko Ketola; Johan Sommarek; Jouko Vankka; Kari Halonen (ISCAS (1), 2004)

Defining athlete's anaerobic and aerobic thresholds by using similarity measures and differential evolution. - Kalle Saastamoinen; Jaakko Ketola; Esko Turunen (SMC (2), 2004)

Fuzzy Logic and Differential Evolution Based Expert System for Defining Top Athlete's Aerobic and Anaerobic Thresholds. - Kalle Saastamoinen; Jaakko Ketola (J. Adv. Comput. Intell. Intell. Informatics, 2005)