Signal receiver and voltage compensation method
AssigneeNanya Technology Corporation
InventorWen-Chang Cheng
Life of this patent
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Abstract
A signal receiver includes a first input terminal, a second input terminal, a first transistor, a second transistor and a variable load. The first and the second transistors each include a gate electrode, a first electrode and a second electrode. The gate electrode of the first transistor is coupled to the first input signal terminal, the gate electrode of the second transistor is coupled to the second input signal terminal, and the variable load is coupled to the first electrode of the first transistor, where a resistance of the first variable load is adjusted to make a DC level at an output node of the signal receiver keep a constant value.
Claims18
A signal receiver, comprising:
- a first input signal terminal;
- a second input signal terminal;
- a first transistor, including a gate electrode coupled to the first input signal terminal and a first electrode and a second electrode;
- a second transistor, including a gate electrode coupled to the second input signal terminal and a first electrode and a second electrode;
- a first variable load, coupled to the first electrode of the first transistor and having an adjustable resistance to keep a DC level at an output node of the signal receiver a constant value;
- and
- a control signal generator, for generating a first control signal by comparing a voltage level at the first input signal terminal with a predetermined voltage level, and utilizing the first control signal to adjust the resistance of the first variable load.
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A voltage compensation method, comprising:
- providing a first transistor, wherein the first transistor includes a gate electrode, a first electrode and a second electrode, and the gate electrode of the first transistor is coupled to a first input signal terminal;
- providing a second transistor, wherein the second transistor includes a gate electrode, a first electrode and a second electrode, and the gate electrode of the second transistor is coupled to a second input signal terminal;
- providing a first variable load, wherein the first variable load is coupled to the first electrode of the first transistor;
- generating a first control signal by comparing a voltage level at the first input signal terminal with a predetermined voltage level;
- and
- utilizing the first control signal to adjust a resistance of the first variable load to make a DC level at an output node of the signal receiver keep a constant value.
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Dependencies are inferred from the claim text.