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AssigneeInternational Business Machines Corporation
InventorsDaniel M. Dreps, John C. Schiff, Dhaval R. Sejpal
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Embodiments of the invention are directed to a single driver that can be used to transmit data with configurable levels of pre-emphasis, and can have either a constant or adjustable driver output impendence, selectively. One embodiment, directed to a driver apparatus, is associated with a digital communication channel for transmitting data signals, wherein at least one of the signals includes a higher frequency component. The apparatus comprises a first sub-driver that has a constant output impedance, and is selectively configurable to implement two or more different levels of pre-emphasis. The apparatus further comprises one or more second sub-drivers. A set of connector elements are provided for connecting the first sub-driver and each of the second sub-drivers in parallel relationship with one another, so that the first sub-driver and each of the second sub-drivers all have inputs that respectively receive a specified driver apparatus input signal, and all have outputs that are connected together to selectively provide a specified driver apparatus output impedance. The apparatus further includes a device that is connected to selectively disable and enable each of the second sub-drivers.
In association with a digital communication channel for transmitting data signals, driver apparatus comprising:
In association with a driver and digital communication channel for transmitting data signals, a method comprising the steps of:
In association with a driver and digital communication channel for transmitting data signals, a computer program product executable in a computer readable medium comprising:
Dependencies are inferred from the claim text.