Display system including DC locally synchronized power line communication

摘要

According to an example embodiment, a display system includes, among other things, a plurality of displays. A corresponding plurality of processors are associated with the displays. Each processor is configured to control a displayed image on one of the associated displays. A controller is configured to provide a control signal to each of the processors. The control signal indicates a desired image to be displayed on the displays. Each of the processors is configured to receive the control signal and determine whether the control signal satisfies at least one criterion. Each processor is configured to determine a portion of the desired image to be displayed on the associated display based on the control signal. Each controller is also configured to control the associated display to display the portion of the desired image at a time corresponding a timing indicator.

主权项

1. A display system, comprising:
a plurality of displays, each configured to display a different digit of a time of a sporting event; a corresponding plurality of processors, each of the processors being associated with one of the displays and configured to control a displayed digit on the associated display; and a controller that is configured to provide a shared control signal to each of the processors, the control signal indicating a desired time to be collectively displayed by the displays, and the shared control signal having a beginning and an end in each update period; each of the processors being configured to:
receive the shared control signal;determine, from a first portion of the shared control signal, a desired digit that should be displayed on the associated display;if the desired digit differs from a digit currently displayed on the associated display, update the associated display to display the desired digit at a time corresponding to a timing indicator in a second portion of the shared control signal; andif the desired digit is the same as the digit currently displayed, continue to display the digit currently displayed;wherein the timing indicator is used by each of the plurality of processors, such that if multiple ones of the displays are to be updated during a current update period, such updates occur simultaneously; andwherein each processor only causes its associated display to display the desired digit indicated in a given update period if the second portion of the shared control signal in the given update period has a duration that is at least as long as a preselected amount of time.