Fault tolerant IC chip for crystal oscillators

Some applications of multiprocessor systems require the system to synchronize their clocks with each other. There are many studies on fault-tolerant clock synchronization methods. However. algorithms proposed in previous work cannot achieve both tight synchronization and cost-effectiveness. To solve these two problems, the authors have proposed a construction method for a highly reliable clock generator. It can achieve tight synchronization of clocks using a coupling device such as a crystal or a capacitor. An IC implementation of the highly reliable clock generator which is useful for real applications such as off-the-shelf components, and its evaluation are presented