SYSTEMS AND METHODS FOR AUTOMATICALLY ELIMINATING IMBALANCE BETWEEN SIGNALS
First Claim
1. A calibrating system for automatically eliminating imbalance between a first signal and a second signal, the calibrating system comprising:
- a programmable delay module, receiving the first and the second signals;
a phase detecting module, coupled to the programmable delay module, for receiving the first and the second signals output from the programmable delay module, and comparing a phase of a reference signal with phases of the first and the second signals, respectively; and
a de-skew controlling module, coupled to the programmable delay module and the phase detecting module, for controlling the programmable delay module to eliminate or reduce imbalance between the first and the second signals by at least delaying one signal according to a comparison result of the phase detecting module.
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Abstract
A calibrating system for automatically eliminating or reducing imbalance between a first signal and a second signal is disclosed. The calibrating system includes: a programmable delay module, receiving to the first and the second signals; a phase detecting module, coupled to the programmable delay module, for receiving the first and the second signals from the programmable delay module, and comparing a phase of a reference signal with phases of the first and the second signals, respectively; and a de-skew controlling module, coupled to the programmable delay module and the phase detecting module, for controlling the programmable delay module to eliminate imbalance between the first and the second signals by at least delaying the first signal according to a comparison result of the phase detecting module.
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Citations
23 Claims
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1. A calibrating system for automatically eliminating imbalance between a first signal and a second signal, the calibrating system comprising:
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a programmable delay module, receiving the first and the second signals;
a phase detecting module, coupled to the programmable delay module, for receiving the first and the second signals output from the programmable delay module, and comparing a phase of a reference signal with phases of the first and the second signals, respectively; and
a de-skew controlling module, coupled to the programmable delay module and the phase detecting module, for controlling the programmable delay module to eliminate or reduce imbalance between the first and the second signals by at least delaying one signal according to a comparison result of the phase detecting module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A calibrating method for automatically eliminating or reducing imbalance between a first signal and a second signal, the calibrating method comprising:
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receiving the first and the second signals;
comparing a phase of a reference signal with phases of the first and the second signals, respectively; and
eliminating or reducing imbalance between the first and the second signals by at least delaying one of the signals according to a comparison result. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification