Patents by Inventor H Md Shuaeb Fazeel

H Md Shuaeb Fazeel 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: 10771108
    Abstract: Embodiments relate to systems, methods, and computer-readable media to enable design and creation of crosstalk cancellation circuitry for a receiver (e.g. an AC coupled DDR5 receiver). One embodiment is a receiver apparatus with crosstalk victim and aggressors lines. The cancellation circuitry involves an amplifier and buffering circuitry to provide inductive and capacitive crosstalk cancellation voltages. Some embodiments can additionally involve circuitry for autozeroing modes for AC coupled receiver lines.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: September 8, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: H Md Shuaeb Fazeel, Sachin Ramesh Gugwad
  • Patent number: 10705984
    Abstract: Embodiments relate to systems, methods, and computer-readable media to enable design and creation of receiver circuitry. One embodiment is a receiver apparatus comprising a plurality of receiver arrangements, each receiver arrangement having a sampling circuit and a multi-stage differential amplifier connected to the sampling circuit. Each receiver arrangement is configurable via switches between an amplifying mode and an autozero mode. Control circuitry may select output data from a sampling circuit of one or more receiver arrangements that are not in autozero mode. In various embodiments, settings for individual receiver arrangements may be set based on decision feedback equalization (DFE).
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: July 7, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: H Md Shuaeb Fazeel, Nikhil Sawarkar, Aaron Willey, Thomas Evan Wilson
  • Patent number: 10545895
    Abstract: Embodiments described herein relate to circuits and techniques for interfacing a microprocessor with memory devices, particularly memory devices such as DDR SDRAM in accordance with protocols such as DDR4 and DDR5. Some embodiments particularly relate to a receiver architecture for a DDR memory interface device that provides AC coupling to memory and includes auto-zeroing functionality. These and other embodiments incorporate equalization functionality such as decision feedback equalization and continuous time linear equalization.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: January 28, 2020
    Assignee: CADENCE DESIGN SYSTEMS, INC.
    Inventors: Aaron Willey, Hari Anand Ravi, H. Md. Shuaeb Fazeel, Thomas Evan Wilson, Moo Sung Chae
  • Patent number: 10545889
    Abstract: Embodiments relate to systems, methods, and computer-readable media to enable design and creation of receiver circuitry. One embodiment is a receiver apparatus comprising a plurality of receiver arrangements, each receiver arrangement having a sampling circuit and a multi-stage differential amplifier connected to the sampling circuit. Each receiver arrangement is configurable via switches between an amplifying mode and an autozero mode. Control circuitry may select output data from receiver arrangements that are not in autozero mode using multiplexer circuitry. In various embodiments, settings for individual receiver arrangements may be set based on decision feedback equalization (DFE).
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: January 28, 2020
    Assignee: Cadence Design Systems, Inc.
    Inventors: H Md Shuaeb Fazeel, Nikhil Sawarkar, Aaron Willey, Thomas Evan Wilson