- NCO
 - Correlators
 - Digital noises :
- phase noise
 - jitter
 - time stabitlity
 
 - Time to Digital Converters
 - Synchronous Detection
 - ADC/DAC choice for Time and Frequency
 - Measures of Sphi(f) & sigma_y(tau)
 - Timing in networks
 - Servo controls (fiber links, …)
 - Experimentations for fréquency generation
- cold atoms
 - spectral hole burning
 - ions
 
 - « Officials » datations
 - Counters, with or without dead time.
 - Softwares
 - Drivers
 - IP cores (FPGA)
 - Chipscope
 
 