US Patent 7327289 Data-modifying run length encoder to avoid data expansion

A method of selectively run length encoding data may include removing a trigger value from one or more data elements if the trigger value is present in the one or more data elements and calculating a run length of the one or more data elements. The method may also include encoding the one or more data elements as a command pair when the run length is greater than two. The command pair may include the trigger value. The one or more data elements may be output without encoding the one or more data elements when the run length is not greater than two.