Patents by Inventor Haidang LIN

Haidang LIN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11706060
    Abstract: A serial receiver combines continuous-time equalization, analog interleaving, and discrete-time gain for rapid, efficient data reception and quantization of a serial, continuous-time signal. A continuous-time equalizer equalizes a received signal. A number N of time-interleaved analog samplers sample the equalized continuous-time signal to provide N streams of analog samples transitioning at rate reduced by 1/N relative to the received signal. A set of N discrete-time variable-gain amplifiers amplify respective streams of analog samples. A quantizer then quantizes the amplified streams of analog samples to produce a digital signal.
    Type: Grant
    Filed: August 30, 2021
    Date of Patent: July 18, 2023
    Assignee: Rambus Inc.
    Inventors: Haidang Lin, Charles Walter Boecker, Masum Hossain
  • Patent number: 11675222
    Abstract: Magneto-optical modulator-based systems and devices for transferring quantum information are described. Such systems can be used for many applications, including as part of quantum computers. An example system includes a quantum information system configured to provide a signal corresponding to at least one qubit. The system further includes a magneto-optical driver configured to receive the signal corresponding to the at least one qubit and process the signal to generate a current based on the signal corresponding to the at least one qubit. The system further includes a magneto-optical modulator configured to receive the current from the magneto-optical driver and provide a modulated light output by modulating a received light input based on the current.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: June 13, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Foteini Karinou, Winston Allen Saunders, Haidang Lin, Richard P. Rouse, Derek Leslie Knee, Charles Walter Boecker, Marijn Petrus Gerardus Rombouts
  • Publication number: 20220236593
    Abstract: Magneto-optical modulator-based systems and devices for transferring quantum information are described. Such systems can be used for many applications, including as part of quantum computers. An example system includes a quantum information system configured to provide a signal corresponding to at least one qubit. The system further includes a magneto-optical driver configured to receive the signal corresponding to the at least one qubit and process the signal to generate a current based on the signal corresponding to the at least one qubit. The system further includes a magneto-optical modulator configured to receive the current from the magneto-optical driver and provide a modulated light output by modulating a received light input based on the current.
    Type: Application
    Filed: January 28, 2021
    Publication date: July 28, 2022
    Inventors: Foteini KARINOU, Winston Allen SAUNDERS, Haidang LIN, Richard P. ROUSE, Derek Leslie KNEE, Charles Walter BOECKER, Marijn Petrus Gerardus ROMBOUTS
  • Publication number: 20220045885
    Abstract: A serial receiver combines continuous-time equalization, analog interleaving, and discrete-time gain for rapid, efficient data reception and quantization of a serial, continuous-time signal. A continuous-time equalizer equalizes a received signal. A number N of time-interleaved analog samplers sample the equalized continuous-time signal to provide N streams of analog samples transitioning at rate reduced by 1/N relative to the received signal. A set of N discrete-time variable-gain amplifiers amplify respective streams of analog samples. A quantizer then quantizes the amplified streams of analog samples to produce a digital signal.
    Type: Application
    Filed: August 30, 2021
    Publication date: February 10, 2022
    Inventors: Haidang Lin, Charles Walter Boecker, Masum Hossain
  • Patent number: 11128499
    Abstract: A serial receiver combines continuous-time equalization, analog interleaving, and discrete-time gain for rapid, efficient data reception and quantization of a serial, continuous-time signal. A continuous-time equalizer equalizes a received signal. A number N of time-interleaved analog samplers sample the equalized continuous-time signal to provide N streams of analog samples transitioning at rate reduced by 1/N relative to the received signal. A set of N discrete-time variable-gain amplifiers amplify respective streams of analog samples. A quantizer then quantizes the amplified streams of analog samples to produce a digital signal.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: September 21, 2021
    Assignee: Rambus Inc.
    Inventors: Haidang Lin, Charles Walter Boecker, Masum Hossain
  • Publication number: 20210058278
    Abstract: A serial receiver combines continuous-time equalization, analog interleaving, and discrete-time gain for rapid, efficient data reception and quantization of a serial, continuous-time signal. A continuous-time equalizer equalizes a received signal. A number N of time-interleaved analog samplers sample the equalized continuous-time signal to provide N streams of analog samples transitioning at rate reduced by 1/N relative to the received signal. A set of N discrete-time variable-gain amplifiers amplify respective streams of analog samples. A quantizer then quantizes the amplified streams of analog samples to produce a digital signal.
    Type: Application
    Filed: March 25, 2019
    Publication date: February 25, 2021
    Inventors: Haidang Lin, Charles Walter Boecker, Masum Hossain
  • Patent number: 10374842
    Abstract: The present invention relates to data communication techniques and integrated circuit devices. More specifically, embodiments of the present invention provide an input buffer module that utilizes one or more equalization elements. The input buffer module includes an array of inverters arranged in a series. An equalization element is configured in series relative to a segment of the array of inverters. The resistance value of the equalization element is predetermined based on a delay associated with the segment of the array of inverters. There are other embodiments as well.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 6, 2019
    Assignee: INPHI CORPORATION
    Inventors: Karim Abdelhalim, Michael Le, Haidang Lin
  • Publication number: 20190190748
    Abstract: The present invention relates to data communication techniques and integrated circuit devices. More specifically, embodiments of the present invention provide an input buffer module that utilizes one or more equalization elements. The input buffer module includes an array of inverters arranged in a series. An equalization element is configured in series relative to a segment of the array of inverters. The resistance value of the equalization element is predetermined based on a delay associated with the segment of the array of inverters. There are other embodiments as well.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 20, 2019
    Inventors: Karim ABDELHALIM, Michael LE, Haidang LIN
  • Patent number: 10320370
    Abstract: Methods and circuits for analyzing a signal and adjusting parameters of an equalizer for a signal. The signal is received at a receiver over a channel wherein the signal has a wave form. The signal is equalized at an equalizer using an adjustable parameter for the equalization. Data points from the signal are sampled between upper and lower limits of a threshold at an error sampler. A performance metric of the signal is computed based on a statistical density of the data points from the signal between the upper and lower limits of the threshold.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: June 11, 2019
    Assignee: MoSys, Inc.
    Inventors: Prashant Choudhary, Haidang Lin, Alvin Wang, Saman Behtash, Shaishav Desai
  • Patent number: 10187230
    Abstract: The present invention relates to data communication techniques and integrated circuit devices. More specifically, embodiments of the present invention provide an input buffer module that utilizes one or more equalization elements. The input buffer module includes an array of inverters arranged in a series. An equalization element is configured in series relative to a segment of the array of inverters. The resistance value of the equalization element is predetermined based on a delay associated with the segment of the array of inverters. There are other embodiments as well.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: January 22, 2019
    Assignee: INPHI CORPORATION
    Inventors: Karim Abdelhalim, Michael Le, Haidang Lin
  • Patent number: 9065399
    Abstract: A voltage-mode differential driver is disclosed. The differential driver includes two driver arms, each driver arm including a variable-impedance driver for driving a single-ended output signal. Each variable-impedance driver comprises multiple driver slices, where each driver slice includes a pre-driver circuit and a driver circuit. Advantageously, it has been determined that the disclosed voltage-mode driver design requires less power than conventional current-mode drivers. In one implementation, the disclosed voltage-mode driver design provides the capability of independently programming the delay of the two single-ended outputs so as to compensate for differential skew. Other embodiments and features are also disclosed.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: June 23, 2015
    Assignee: Altera Corporation
    Inventors: Bonnie I. Wang, Weiqi Ding, Tim Tri Hoang, Richard Hernandez, Haidang Lin
  • Publication number: 20140368272
    Abstract: A voltage-mode differential driver is disclosed. The differential driver includes two driver arms, each driver arm including a variable-impedance driver for driving a single-ended output signal. Each variable-impedance driver comprises multiple driver slices, where each driver slice includes a pre-driver circuit and a driver circuit. Advantageously, it has been determined that the disclosed voltage-mode driver design requires less power than conventional current-mode drivers. In one implementation, the disclosed voltage-mode driver design provides the capability of independently programming the delay of the two single-ended outputs so as to compensate for differential skew. Other embodiments and features are also disclosed.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 18, 2014
    Inventors: Bonnie I. WANG, Weiqi DING, Tim Tri HOANG, Richard HERNANDEZ, Haidang LIN