Clock phase recovery apparatus
AssigneeHuawei Technologies Co., Ltd.
InventorFabian Nikolaus Hauske
Life of this patent
Estimating the term…
Abstract
A clock phase recovery apparatus includes a clock estimator for estimating a first clock signal and a second clock signal upon the basis of an input signal, the input signal comprising a first sub-signal according to a first optical polarization and a second sub-signal according to a second optical polarization, the first clock signal comprising a first clock magnitude and a first clock phase, the second clock signal comprising a second clock magnitude and a second clock phase, and a selector for selecting the first clock phase to form the estimated clock phase if the first clock magnitude is greater than the second clock magnitude, or for selecting the second clock phase to form the estimated clock phase if the second clock magnitude is greater than the first clock magnitude.
Claims14
A clock phase recovery apparatus for estimating an estimated clock phase, the clock phase recovery apparatus comprising:
- a clock estimator for estimating a first clock signal and a second clock signal upon the basis of an input signal, the input signal comprising a first sub-signal according to a first optical polarization and a second sub-signal according to a second optical polarization, the first clock signal comprising a first clock magnitude and a first clock phase, the second clock signal comprising a second clock magnitude and a second clock phase;
- a selector for selecting the first clock phase to form the estimated clock phase if the first clock magnitude is greater than the second clock magnitude, or for selecting the second clock phase to form the estimated clock phase if the second clock magnitude is greater than the first clock magnitude.
A method for estimating an estimated clock phase, the method comprising:
- estimating a first clock signal and a second clock signal upon the basis of an input signal, the input signal comprising a first sub-signal according to a first optical polarization and a second sub-signal according to a second optical polarization, the first clock signal comprising a first clock magnitude and a first clock phase, the second clock signal comprising a second clock magnitude and a second clock phase;
- and
- selecting the first clock phase to form the estimated clock phase if the first clock magnitude is greater than the second clock magnitude, or selecting the second clock phase to form the estimated clock phase if the second clock magnitude is greater than the first clock magnitude.
Dependencies are inferred from the claim text.