Patent ID: 7133036

Claim:
A system for controlling display cells modulating light based on data, the system comprising: an input controller configured to receive a series of data groups with each having N bits and arranged in subgroups, each subgroup having a subgroup value and a subgroup position with each position corresponding to one cell of a group of cells, to determine a comparison value for each subgroup position based on subgroup values at corresponding subgroup positions of a current data group and a preceding data group, to provide an update signal based on the comparison values, and to provide an update data group having less than N bits and representative of the current data group when the update signal indicates reduced data transmission; and a display controller configured to receive the update signal and the update data group and to update the group of cells based on the update signal with N bits of data from at least one of: the update data group; the preceding data group; and a function of the update and preceding data groups.