Patent ID: 8576103

Claim:
An apparatus comprising: a rollover processor configured to process a codeword based on comparing the codeword to at least one threshold and adaptively to partition the codeword into a plurality of sub-codewords when the codeword having a magnitude greater than the at least one threshold; a digital to analog converter (DAC) configured to process a first of the plurality of sub-codewords to generate a first analog signal; at least one additional circuitry, including at least one of a capacitor and an inductor, configured to generate at least a second analog signal based on at least a second of the plurality of sub-codewords when the codeword having the magnitude greater than the at least one threshold; and a combiner configured to combine the first analog signal and the at least a second analog signal to generate a third analog signal, and wherein, the at least one threshold corresponding to a maximum input magnitude of the DAC.