Matching transmitter impedance to receiver termination using an average of transmitter output voltage samples

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United States of America Patent

PATENT NO 10659258
SERIAL NO

16195385

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus to adjust a differential transmitter output impedance is disclosed. Output voltage is sampled and averaged to mitigate noise and leakage. Averaged uplevel and downlevel voltages are used to select a number of pullup devices and a number of pulldown devices to control the differential transmitter output impedance to match a distal termination resistance or a transmission line impedance.

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Patent Owner(s)

  • IBM CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lukes, Eric J Stewartville, US 11 30
Newshutz, Henry M Rochester, US 2 5
Paulik, George F Rochester, US 14 111
Ramirez, Daniel Rochester, US 62 184
Richetta, Raymond A Rochester, US 28 226

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