Patent ID: 8797235
Filing Date: 2014-08-05
Classification: G09G

Abstract:
1. An electronic display arrangement comprising: a controller including at least one data communication port, the controller being configured to transmit display data from the at least one data communication port; a plurality of modules electrically connected to each other in a series connection, each of the modules including at least one data communication port, a first one of said modules being on a first end of the series connection, the at least one communication port of the first module being electrically connected to the at least one communication port of the controller, a last one of said modules being on a second end of the series connection, the at least one communication port of the last module being electrically connected to the at least one communication port of the controller, the first module being configured to receive the display data from the controller and transmit the display data to at least one intermediate said module in the series connection, the at least one intermediate module being configured to pass the display data along the series connection in a first direction until the display data is received by the last module, each of the modules controlling activation of a respective plurality of lighting elements based on the received display data, the last module being configured to transmit to the controller an acknowledgement of receipt of the display data; and the controller being configured such that if the controller does not receive the acknowledgement from the last module after transmitting the display data, then the controller transmits the display data to the last module, the last module being configured to receive the display data from the controller and transmit the display data to the at least one intermediate module in the series connection, the at least one intermediate module being configured to pass the display data along the series connection in a second direction opposite to the first direction; wherein the acknowledgment comprises the display data.