Patent ID: 8531216

Claim:
An electronic apparatus, comprising: a reference oscillator, for generating a reference clock; a first communications module, comprising: a first auto frequency control unit, for detecting a first frequency offset between the first communications module and a first communication device and generating a first detecting result; and a first frequency synthesizer, coupled to the reference oscillator and the first auto frequency control unit, for adjusting the reference clock according to the first detecting result, to generate a first baseband clock; and a second communications module, comprising: a second auto frequency control unit, for detecting a second frequency offset between the second communications module and a second communication device and generating a second detecting result; and a second frequency synthesizer, coupled to the first communications module and the second auto frequency control unit, for receiving and outputting the first baseband clock; and a compensation unit, coupled to the first auto frequency control unit, the second auto frequency control unit and the second frequency synthesizer for adjusting the first baseband clock according to the first detecting result and the second detecting result, to generate a second baseband clock.