US Patent 7388991 Data encoding methods and circuits

A data encoding method. First, a data array comprising a plurality of elements is stored in a memory. The number of elements unequal to a predetermined value is counted while elements of the array are stored in the memory. Then, a control module reads elements from the data array, and determines whether the number of read elements unequal to the predetermined value is equal to the counted number. When the number of read elements unequal to the predetermined value is equal to the counted number, the control module stops reading elements from the data array.