公开(公告)号：US11153135B1

公开(公告)日：2021-10-19

申请号：US17146454

申请日：2021-01-11

Applicant: Texas Instruments Incorporated

Inventor： Shita Guo ,  Yanli Fan ,  Mustafa Ulvi Erdogan ,  Douglas Edward Wente

IPC: H04L25/03

Abstract: Methods and systems of adaptive equalization to compensate channel loss are disclosed. A method includes detecting a peak amplitude of an equalizer output signal and selecting a set of reference voltage levels from M sets based on the peak amplitude of the equalizer output signal, each of the M sets having N reference voltage levels. The method includes continuing to increase an equalization level in predetermined steps to a next higher equalization level if the applied equalization level does not correspond to the over-equalization level and evaluating the distribution of the resulting hit counts for each increase to the next higher equalization level until the applied equalization level corresponds to the over-equalization level. The method includes decreasing to the previously applied lower equalization level if the applied equalization level corresponds to the over-equalization level.

公开(公告)号：US10394740B1

公开(公告)日：2019-08-27

申请号：US16126665

申请日：2018-09-10

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Shita Guo ,  Yanli Fan ,  Huanzhang Huang ,  Yonghui Tang ,  Yanfei Jiang

IPC: H03K17/00 ,  G06F13/40 ,  G06F13/42 ,  H02M3/07 ,  H02M1/14

Abstract: An apparatus includes a transistor with a control terminal, a first current terminal, and a second current terminal. The apparatus also includes a charge pump coupled to the control terminal of the transistor via a first and second paths. The first path comprises a first resistor and the second path comprises a second resistor in series with a diode. The first resistor has a higher resistance value than the second resistor.

公开(公告)号：US10972081B2

公开(公告)日：2021-04-06

申请号：US16804061

申请日：2020-02-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Yanfei Jiang ,  Huanzhang Huang ,  Yonghui Tang ,  Shita Guo

IPC: H03K5/00 ,  H03K5/1252 ,  H03K19/20 ,  H03K19/0175 ,  G05F1/46

Abstract: Aspects of the disclosure provide for a method. In some examples, the method includes detecting a transition in an input signal (IN), generating a bias current based on the detected transition in IN, and modifying a charge status of a capacitor based on the charge current. The method further includes generating an output signal (OUT) based on the charge status of the capacitor, disabling the bias current generation based on values of IN and OUT, and strongly pulling the capacitor up or down based on the disabling the bias current generation.