Patents by Inventor Ramin Farjad

Ramin Farjad 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: 11665028
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: May 30, 2023
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Publication number: 20220103405
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Application
    Filed: October 15, 2021
    Publication date: March 31, 2022
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz, Vladimir Stojanovic
  • Publication number: 20220078052
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Application
    Filed: September 23, 2021
    Publication date: March 10, 2022
    Inventor: Ramin Farjad-Rad
  • Patent number: 11165613
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Grant
    Filed: January 24, 2019
    Date of Patent: November 2, 2021
    Assignee: Rambus Inc.
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz, Vladimir Stojanovic
  • Patent number: 11153133
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: October 19, 2021
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Publication number: 20210126818
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Application
    Filed: November 23, 2020
    Publication date: April 29, 2021
    Inventor: Ramin Farjad-Rad
  • Patent number: 10880131
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: December 29, 2020
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Publication number: 20200252243
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Application
    Filed: February 14, 2020
    Publication date: August 6, 2020
    Inventor: Ramin Farjad-Rad
  • Patent number: 10673561
    Abstract: A BASE-T Ethernet transceiver is disclosed. The transceiver includes a BASE-T Ethernet transmit circuit that employs a data framing module. The data framing module includes an input interface to receive Ethernet block data bits, and, forward error correction encoder is coupled to the logic to encode at least a first portion of the data bits to generate first error check bits. A Reed-Solomon (RS) encoder is coupled to the logic to encode at least a second portion of the data bits in accordance with a Reed-Solomon error code to generate second error check bits. A symbol mapper modulates the Ethernet block data bits in accordance with an SQ64 constellation comprising back-to-back PAM8 symbols.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: June 2, 2020
    Assignee: Marvell Asia Pte, LTD
    Inventors: Ramin Farjad, Paul Langner
  • Patent number: 10581648
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: March 3, 2020
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Publication number: 20190268188
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Application
    Filed: April 25, 2019
    Publication date: August 29, 2019
    Inventor: Ramin Farjad-Rad
  • Publication number: 20190199563
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 27, 2019
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz, Vladimir Stojanovic
  • Patent number: 10291440
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: May 14, 2019
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Patent number: 10205614
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Grant
    Filed: June 16, 2018
    Date of Patent: February 12, 2019
    Assignee: Rambus Inc.
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz, Vladimir Stojanovic
  • Publication number: 20180367350
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Application
    Filed: June 16, 2018
    Publication date: December 20, 2018
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz
  • Publication number: 20180337806
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Application
    Filed: May 14, 2018
    Publication date: November 22, 2018
    Inventor: Ramin Farjad-Rad
  • Publication number: 20180322495
    Abstract: Disclosed is a computer-implemented banking system for the visually-challenged. The system comprises a user terminal comprising an output means for perceivably-delivering to a user, a user-selected form from a plurality of banking forms, the form delivered one query at a time and an input means for receiving user input as a response to each query. The system further comprises a preview module for perceivably-delivering the user-inputted form, via the output means, to the user for preview and an authentication module for receiving the user's authentication upon the user finalizing the previewed form, wherein the authentication is associated with the form.
    Type: Application
    Filed: January 15, 2018
    Publication date: November 8, 2018
    Inventors: Ramin Farjad, Saeed Sadeghpour Vajdi, Arman Bahri
  • Patent number: 10003484
    Abstract: A signaling system includes a pre-emphasizing transmitter and an equalizing receiver coupled to one another via a high-speed signal path. The receiver measures the quality of data conveyed from the transmitter. A controller uses this information and other information to adaptively establish appropriate transmit pre-emphasis and receive equalization settings, e.g. to select the lowest power setting for which the signaling system provides some minimum communication bandwidth without exceeding a desired bit-error rate.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: June 19, 2018
    Assignee: Rambus Inc.
    Inventors: Jared L. Zerbe, Fred F. Chen, Andrew Ho, Ramin Farjad-Rad, John W. Poulton, Kevin S. Donnelly, Brian S. Leibowitz
  • Patent number: 9985806
    Abstract: An integrated circuit equalizes a data signal expressed as a series of symbols. The symbols form data patterns with different frequency components. By considering these patterns, the integrated circuit can experiment with equalization settings specific to a subset of the frequency components, thereby finding an equalization control setting that optimizes equalization. Optimization can be accomplished by setting the equalizer to maximize symbol amplitude.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: May 29, 2018
    Assignee: Rambus Inc.
    Inventor: Ramin Farjad-Rad
  • Patent number: 9893756
    Abstract: An Ethernet transceiver integrated circuit (IC) chip is disclosed. The IC chip includes multiple physical sub-channels, where each sub-channel transfers data symbols along a wired link. Each data symbol representing a group of multiple data bits. Logic determines a signal quality parameter value for each of the sub-channels. For each sub-channel, in a first mode where a given sub-channel exhibits a signaling quality above a first predetermined threshold, the logic assigns a modulation of a first type associated with a first constellation. In a second mode where a given sub-channel exhibits a signaling quality below the first predetermined threshold, the logic assigns a modulation of a second type associated with a second constellation that is sparser than the first constellation.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: February 13, 2018
    Assignee: Aquantia Corp.
    Inventors: Hossein Sedarat, Ramin Farjad