System including preemphasis driver circuit and method
AssigneeQimonda AG
InventorMaksim Kuzmenka
Life of this patent
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Abstract
A system including a preemphasis driver circuit and a method. One embodiment includes an output terminal, a main driver coupled between the input terminal and the output terminal and an auxiliary driver coupled to the output terminal, wherein at least one unclocked delay element is coupled between the input terminal and the auxiliary driver.
Claims25
A system including a preemphasis driver circuit comprising:
- an input terminal;
- an output terminal;
- a main driver coupled between the input terminal and the output terminal;
- an auxiliary driver coupled to the output terminal;
- and
- at least one unclocked delay element is coupled between the input terminal and the auxiliary driver.
A system comprising:
- a preemphasis driver circuit comprising:
- a main driver driven by an input signal, and
- an auxiliary driver, both to drive at least one loaded transmission line in parallel;
- wherein the input signal is differentiated using at least one unclocked delay element to drive the auxiliary driver.
A preemphasis driver circuit comprising:
- a main driver means for driving an output terminal by an input signal;
- a differentiating means for differentiating the input signal;
- an auxiliary driver means for driving the output terminal by the differentiated input signal.
A method for operating a system including driving a loaded transmission line with preemphasis, the method comprising:
- driving a loaded transmission line by an input signal using a main driver;
- differentiating the input signal using at least one unclocked delay element to generate preemphasis pulses whenever the input signal changes its value;
- and
- driving the loaded transmission line by the preemphasis pulses using an auxiliary driver.
A method for operating a system including preemphasizing an input signal to drive an output terminal, the method comprising:
- driving the output terminal by the input signal using a main driver and an auxiliary driver in parallel;
- wherein the input signal is differentiated using at least one unclocked delay element to drive the auxiliary driver.
Dependencies are inferred from the claim text.