US Patent Application 18202584. DRIVE STRENGTH CALIBRATION FOR MULTI-LEVEL SIGNALING simplified abstract

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DRIVE STRENGTH CALIBRATION FOR MULTI-LEVEL SIGNALING

Organization Name

Micron Technology, Inc.

Inventor(s)

Peter Mayer of Neubiberg (DE)

Wolfgang Anton Spirkl of Germering DE (US)

Michael Dieter Richter of Ottobrunn (DE)

Martin Brox of Munchen (DE)

Thomas Hein of Munich (DE)

DRIVE STRENGTH CALIBRATION FOR MULTI-LEVEL SIGNALING - A simplified explanation of the abstract

This abstract first appeared for US patent application 18202584 titled 'DRIVE STRENGTH CALIBRATION FOR MULTI-LEVEL SIGNALING

Simplified Explanation

This patent application describes methods, systems, and devices for calibrating the drive strength of a driver in a multi-level signaling system. Here are the key points:

  • The driver in a transmitting device is initially set to a certain drive strength and is used to drive an output pin towards an intermediate voltage level in a multi-level modulation scheme.
  • The output pin is connected to a receiving device through a channel.
  • The receiving device generates a feedback signal that indicates the relationship between the resulting voltage in the channel and the value for the intermediate voltage level.
  • The transmitting device receives this feedback signal.
  • Based on the feedback signal, the transmitting device determines and adjusts the drive strength of the driver for the intermediate voltage level.
  • The driver can be calibrated independently for each intermediate voltage level in the multi-level modulation scheme.
  • The driver can also be calibrated specifically for the associated channel.


Original Abstract Submitted

Methods, systems, and devices for drive strength calibration for multi-level signaling are described. A driver may be configured to have an initial drive strength and to drive an output pin of a transmitting device toward an intermediate voltage level of a multi-level modulation scheme, where the output pin is coupled with a receiving device via a channel. The receiving device may generate, and the transmitting device may receive, a feedback signal indicating a relationship between the resulting voltage of the channel and an value for the intermediate voltage level. The transmitting device may determine and configure the driver to use an adjusted drive strength for the intermediate voltage level based on the feedback signal. The driver may be calibrated (e.g., independently) for each intermediate voltage level of the multi-level modulation scheme. Further, the driver may be calibrated for the associated channel.

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