Siemens Aktiengesellschaft

Gerhard Uhlig

Wolfram Ernst

In order to replace a reference clock s.sub.R, as needed, and without phase shift, with another clock f, the latter clock must be synchronized to the reference clock in frequency and in phase. Since the reference clock can fail or can be disturbed, undesirable synchronizations often occur in such cases. An error-free, phase-wise optimal synchronization of the two clocks is achieved and synchronization is carried out as a rule only when a defined edge of the reference clock appears within a time range defined with reference to the clock f.

Growing community of inventors

Munich, Germany

Gerhard Uhlig