Patent ID: 8472283

Claim:
A clock synchronization system comprising: a local area network; a receiver for receiving a publicly available standard time signal; a first network interface associated with said receiver for transmitting time information over the local area network; a clock for displaying time; a second network interface associated with the clock and in communication with the local area network; means connected to the second network interface for generating a time stamp based on time information transmitted over the local area network; means, responsive to the time stamp and to the time displayed on the clock, for comparing the displayed time with said time stamp and adjusting the displayed time so that the displayed time is synchronized with the standard time signal; at least one additional clock for displaying time, each said additional clock being associated with an additional network interface in communication with the local area network; means associated with each additional clock and connected to the additional network interface associated therewith for generating a time stamp based on time information transmitted over the local area network; and means associated with each additional clock and responsive to the time stamp generated by the time stamp-generating means associated therewith and to the time displayed thereon, for comparing the displayed time with the last-mentioned time stamp and adjusting the displayed time so that the displayed time corresponds with the standard time signal.