US Patent 7297044 Method, apparatus, and system to synchronize processors in toys

The invention generally relates to a method, apparatus, and system to synchronize timers or clocks of toys. A play-set includes a first toy having a first timer and a start button. The first toy can be designated as a master when the start button is depressed. After being designated as the master, the first toy sends a synchronization signal to begin synchronization. The play-set also includes a second toy communicatively linked to the first toy. The second toy has a second timer, and synchronizes the second timer to the first timer of the first toy in response to the synchronization signal. After timer synchronization, scripts are selected and a script start signal synchronizes the beginning of script play.