Patent ID: 7295599

Claim:
An apparatus comprising: a compensation component to perform signal compensation with respect to input signals to generate compensated output signals, including: a first spectral compensation unit to compensate spectral characteristics of a first digital signal; and a first envelope compensation unit to compensate linearity characteristics of the first digital signal; and a second spectral compensation unit to compensate spectral characteristics of a second digital signal; and a second envelope compensation unit coupled to receive a second digital signal generated by a second converter and to compensate linearity characteristics of the second digital signal; and a conversion component to perform signal conversion between digital format and analog format, including: a first converter coupled to convert the first digital signal to analog format after the first digital signal is compensated by the first spectral compensation unit and the first envelope compensation unit a second converter coupled to receive a first analog signal and convert the first analog signal to digital format after the first digital signal is compensated by the first spectral compensation unit and the first envelope compensation unit the first spectral compensation unit utilizes data provided by a first spectral lookup table, the first envelope compensation unit utilizes data provided by a first envelope lookup table, the second spectral compensation unit utilizes data provided by a second spectral lookup table, and the second envelope compensation unit utilizes data provided by a second envelope lookup table to perform their corresponding functions.