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For the Inventor, By the Inventor

El Dorado Hills, CA, United States of America

Xin Liu

USPTO Granted Patents = 12 

Average Co-Inventor Count = 2.9

ph-index = 3

Forward Citations = 35(Granted Patents)


Location History:

  • El Dorado Hill, CA (US) (2013)
  • El Dorado Hills, CA (US) (2012 - 2016)

Company Filing History:

goldMedal12 out of 12,890 
 
Advanced Micro Devices Corporation
 patents

Years Active: 2012-2016

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12 patents (USPTO):Explore Patents
1. 9490791 - Method and circuit for detecting USB 3.0 LFPS signal (2016-11-08),
2. 9065428 - Method to control slew rate of a current-mode logic output driver (2015-06-23),
3. 8829941 - Low-power high-gain multistage comparator circuit (2014-09-09),
4. 8760196 - Squelch detection method and circuit using dual rectifying circuit for detecting out-of-band signal (2014-06-24),
5. 8604829 - Low-power wide-tuning range common-mode driver for serial interface transmitters (2013-12-10),
6. 8564583 - Bias circuit for a complementary current mode logic drive circuit (2013-10-22),
7. 8564326 - Circuit and method to control slew rate of a current-mode logic output driver (2013-10-22),
8. 8513981 - Squelch detection method and circuit using rectifying circuit for detecting out-of-band signal (2013-08-20),
9. 8497707 - Transmitter equalization method and circuit using unit-size and fractional-size subdrivers in output driver for high-speed serial interface (2013-07-30),
10. 8149024 - Dual function voltage and current mode differential driver (2012-04-03),
11. 8102633 - Power supply equalization circuit using distributed high-voltage and low-voltage shunt circuits (2012-01-24),
12. 8102632 - Electrostatic discharge power clamp trigger circuit using low stress voltage devices (2012-01-24),

Title: Innovations of Inventor Xin Liu

Introduction

Xin Liu is a prominent inventor based in El Dorado Hills, CA (US). He has made significant contributions to the field of technology, particularly in the area of data transmission and USB protocols. With a total of 12 patents to his name, Liu continues to push the boundaries of innovation.

Latest Patents

One of Liu's latest patents is titled "Method and circuit for detecting USB 3.0 LFPS signal." This invention provides a system and method for efficient detection of Low Frequency Periodic Signaling (LFPS) input signals. The receiver in this system receives two input differential signals that are LFPS input signals. It increases the common-mode voltage for each of the two input differential signals and determines two polarity opposite differences between the level shifted intermediate differential signals. These differences are then used to generate two series of relatively narrow pulses by comparisons with a given threshold. A wide continuous pulse is asserted when an initial pulse among the two series of pulses is detected, and it is deasserted when a final pulse among the two series of pulses is detected. While the wide continuous pulse is asserted, control logic is awakened to perform a Universal Serial Bus (USB) protocol for processing data on the input differential signals.

Another notable patent is the "Method to control slew rate of a current-mode logic output driver." This method allows for selecting at least one of a plurality of slew rate control settings based on the speed of data transmission and the receiving input data. The method includes switching the received input data according to the selected slew rate control settings and sending output data at the data transmission speed. Additionally, it provides a data driver device that includes at least one activation portion comprising one or more slew rate controls, a voltage-mode driver portion, and at least a first current-mode driver portion.

Career Highlights

Xin Liu is currently employed at Advanced Micro Devices Corporation, a leading company in the semiconductor industry. His work focuses on enhancing data transmission technologies and improving USB protocols, which are critical for modern electronic devices.

Collaborations

Liu has collaborated with notable colleagues such as Arvind Bomdica and Ming-Ju Edward Lee. Their combined expertise contributes to the innovative projects at Advanced Micro Devices Corporation.

Conclusion

Xin Liu's contributions to technology through his patents and work at Advanced Micro Devices Corporation highlight his role

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