PHYSICS PACKAGE FOR CHIP SCALE ATOMIC CLOCKS AND METHOD OF MAKING SAME

METHOD FOR UNIFYING TIME IN WIDE AREA OF SPACE, SPACE TIME-KEEPING SYSTEM

PROGRAMMABLE INTEGRATED CIRCUIT USING A RADIOACTIVE SOURCE

Radiation-based timer for implantable medical devices

TAMPER-RESISTANT TIME REFERENCE AND APPARATUS USING SAME

Radioactive decay based stable time or frequency reference signal source

Precision timing source back-up for loss of GPS satellites