* [[en:dds|DDS]]
  * 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