About the founder, Dr. Jean-Cl. Willemetz
Chairman of Signal Processing SA


In 1990 I created Signal Processing SA to promote the ultrasonic technology I developed during my Ph.D. work. My thesis included computer modeling of ultrasonic echoes and studies of applications of ultrasonic Doppler velocimetry to deep human vessels blood flows.

I have designed one of the first commercial available multigate ultrasonic Doppler velocimeter which is now world wide distributed.

I'm now specialized in the design, development and fabrication of ultrasonic Doppler velocimeter. My main activities are modeling ultrasonic signals and elaboration of signal processing techniques to extract information from ultrasonic echoes.

Education

Ph.D. Applied physics
Swiss federal institute of technology
Lausanne, Switzerland
February 1986 - July 1990

B.S. Electrical Engineering
Swiss federal institute of technology
January 1982

B.S. Mechanical Engineering
Swiss federal institute of technology
January 1980

Bibliography

  • Etude quantitative de l'hémodynamique de vaisseaux sanguins profonds par échographie Doppler ultrasonore.
    These No 893, EPFL, 1990
  • Debitmetrie foetale au moyen d'un Doppler pulse multicanaux dans l'aorte et la veine ombilicale.
    Gynakol Rundsch, vol. 29, pp 22-31, 198
  • Bias and variance in the estimate of the Doppler frequency induced by a wall motion filter.
    Ultrasonic Imaging, vol. 11, pp 215-225, 1989
  • Influence of the wall motion filter on the estimate of Doppler frequency shifts of noisy signals.
    IEEE 1988 Ultrasonics symposium, 3-5 october 1988, Chicago
  • Possibilités et limites de la mesure du débit de vaisseaux abdominaux profonds par échographie Doppler.
    Rev. Med. Suisse Romande, vol. 108, pp745-752, 1988
  • Instantaneous Doppler frequency measurement and implementation in a multigate flowmeter.
    Euroson 87, 14-18 june 1987, Helsinki
  • Un examen de la fonction pulmonaire en médecine ambulatoire et aux soins intensifs : la méthode des oscillations forcées.
    Médecine et hygiène, vol 40, pp 2971-2976, 1982

How to contact me

Signal Processing SA, ch. du Crêt Rouge 6 , 1073 Savigny, Switzerland
Phone: +41-21-683.17.17
Fax: +41-21-683.17.18