Jacques Helle

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Sartrouville, FR

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Patents Grantslast 30 patents

Information Patent Grant
Voltage controlled crystal oscillator having wide frequency range
- Patent number 4,484,157
- Issue date Nov 20, 1984
- Compagnie d'Electronique et de Piezo-Electricite
- Jacques Helle
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Temperature-compensated crystal oscillator
- Patent number 4,412,188
- Issue date Oct 25, 1983
- Compagnie d'Electronique et de Piezo-Electricite C.E.P.E.
- Jacques Helle
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Wide-band frequency-controlled crystal oscillator
- Patent number 4,063,194
- Issue date Dec 13, 1977
- Compagnie d'Electronique et de Piezo-Electricite
- Jacques Helle
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Temperature compensation circuit for crystal oscillator
- Patent number 4,020,426
- Issue date Apr 26, 1977
- Compagnie d'Electronique et de Piezoelectricite C.E.P.E.
- Jacques Helle
- H03 - BASIC ELECTRONIC CIRCUITRY