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US 9,178,501 B2Granted
Method for improving signal quality of a digital signal being transmitted through a non-linear device and apparatus using the same
AssigneeTyco Electronics Svenska Holdings AB
InventorsMarek Grzegorz Chacinski, Nicolae Pantazi Chitica
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Abstract
A digital signal processing method has steps of pre-emphasizing a digital signal, and then processing the pre-emphasized digital signal through a non-linear device. In the pre-emphasizing step, an undershoot is applied to a first level of the digital signal at a positive signal transition or an overshoot is applied to the digital signal at a negative first signal transition.
Claims21
A digital signal processing method, comprising the steps of:
- pre-emphasizing a digital signal by applying an undershoot to a first level of the digital signal before a positive first signal transition, or by applying an overshoot to the digital signal before a negative first signal transition;
- and
- processing the pre-emphasized digital signal through a non-linear device.
An apparatus for processing a digital signal through a non-linear device, comprising:
- a pre-emphasis driver with an output of a pre-emphasized digital signal having an undershoot at a first level before a positive first transition wherein the first level is lower than a second level;
- or an output of a pre-emphasized digital signal with an overshoot at the first level before a negative first transition wherein the first level is higher than the second level;
- and
- a digital signal processing non-linear device having a pre-emphasized digital signal input.
1 more element
A communication system comprising:
- an apparatus for processing a digital signal through a non-linear device, having:
- a pre-emphasis driver with an output of a pre-emphasized digital signal having an undershoot at a first level before a first positive signal transition;
- or an output of a pre-emphasized digital signal with an overshoot at the first level before a first negative signal transition;
- and
- a digital signal processing non-linear device having a pre-emphasized digital signal input;
- and
- a transmitter having a digital signal transmitting output connected to a transmission medium.
4 more elements
Dependencies are inferred from the claim text.