Patent ID: 6937677

Claim:
In a diversity receiver with first and second channels having respective first and second digital signals therein, said first and second channels of said diversity receiver further including respective first and second phase locked loops, said first phase locked loop including a first controlled oscillator, and a first phase detector responsive to said first digital signal for providing a first phase error signal, said second phase locked loop including a second controlled oscillator, and a second phase detector responsive to said second digital signal for providing a second phase error signal, a joint loop filter for cross coupling said first and second phase locked loops said joint loop filter comprising: an adder having respective first and second input terminals, and an output terminal; said first phase error signal being coupled to said first input terminal of said adder; said second phase error signal being coupled to said second input terminal of said adder; and said output terminal of said adder being coupled to said first and second controlled oscillators.