G - Physics – 09 – F
Patent
G - Physics
09
F
G09F 9/30 (2006.01) G09G 3/04 (2006.01)
Patent
CA 2121297
A variable message display sign having a power source and comprises a plurality of character displays each having signal elements organized in distinct sets, each said signal element having an on state and an off state. A controller located remotely from the character displays produces an address signal containing character address data for identifying an addressed character display, a set signal containing set address data for identifying an addressed set of signal elements and a data signal containing display data corresponding to desired on/off states for each signal element in the addressed set. A logic circuit associated with each character display has a unique character address therefor, each logic circuit located proximately to a respective one of the character displays and having a memory operative in response to an address signal containing character address data corresponding to the unique character address of the logic circuit to receive and store the display data according to the set address data for an addressed set of signal elements. The logic circuit is operative to switch the signal elements of its associated character display to a desired pattern of on/off states according to the display data stored in the memory thereby to display a desired character. A data bus interconnects the controller and the logic circuits whereby the character address data, the set address data and the display data are communicated to the logic circuits.
Reeder Bruce B.
Smart & Biggar
LandOfFree
Apparatus and method for remotely controlled variable... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for remotely controlled variable..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for remotely controlled variable... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1370008