Patents by Inventor Santanu Chaudhuri

Santanu Chaudhuri 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).

  • Publication number: 20220096975
    Abstract: Reusable filters for personal protective equipment (PPE) may prevent shortages of PPE and save fabrication time, resources, and money. Disclosed is a method and system for fabrication of nanofiber filter media for PPE. The method includes positioning a substrate to receive nanofibers thereon, providing a voltage gradient in a region of the substrate, and electrospinning nanofibers onto the substrate. The methods and associated systems allow autoclaving of the filter medium at temperatures of up to 300 degrees for sanitizing the filter medium. Additionally, the methods and associated system allow for the inclusion of an anti-pathogen agent in the nanofiber filter media.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Inventors: Yuepeng Zhang, Devon J. Powers, Krzysztof Pupek, John R. Hryn, Gregory K. Krumdick, Santanu Chaudhuri
  • Patent number: 9219623
    Abstract: A method, system and apparatus to self-determine equalization parameters for a channel. An initiator sends an equalization insensitive signal (EIS) to a responder on channel to be equalized and begins a count. A responder responds with an EIS. When the initiator receives the response EIS the count is terminated. The count, which constitutes a measure of delay in the channel, may be used to determine desirable equalization parameters for the channel.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: December 22, 2015
    Assignee: Intel Corporation
    Inventors: James A. McCall, Klaus Ruff, David Shykind, Santanu Chaudhuri
  • Patent number: 9104793
    Abstract: A method and system to adapt communication links statically and/or dynamically to their individual link conditions on a platform. The communicatively coupled devices have logic to adapt one or more settings of a respective one or more communication links with another device based at least in part on a respective metric of received data patterns from the respective one or more communication links. The communicatively coupled devices in the platform have a back channel to allow feedback or information to be sent from one receiving device to a transmitting device in one embodiment of the invention.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: August 11, 2015
    Assignee: Intel Corporation
    Inventors: Venkatraman Iyer, Arvind Kumar, Santanu Chaudhuri, Darren S. Jue, Dennis R. Halicki
  • Patent number: 8578086
    Abstract: Link initialization techniques to decouple the read training from the write training. Read training may be accomplished in a robust manner before write training is performed. These techniques may provide significantly improved link initialization times. A user-programmable register within a dynamic random access memory (DRAM) module may be utilized by the decoupled read training and write training processes. The decoupling may result in shorter and more robust training segments that may support faster training and/or increased link speeds.
    Type: Grant
    Filed: September 25, 2009
    Date of Patent: November 5, 2013
    Assignee: Intel Corporation
    Inventors: Santanu Chaudhuri, Klaus Ruff
  • Publication number: 20130279622
    Abstract: A method and system to reduce the power supply noise of a platform during the training of high speed communication links. In one embodiment of the invention, the device has logic to stagger a bit lock pattern for each of one or more communication links and scramble a training sequence for each of the one or more communication links. By doing so, it removes the need for anti-noise circuits and in turn, reduces the silicon area and power of the devices. Further, by having the logic in the physical layers to facilitate the training of the communication links, it eliminates the need to redesign the package of the devices to shift the resonant frequencies.
    Type: Application
    Filed: September 30, 2011
    Publication date: October 24, 2013
    Inventors: Venkatraman Iyer, Santanu Chaudhuri, Stephen S. Chang
  • Patent number: 8533538
    Abstract: Described herein is a method and an apparatus for training a memory signal via an error signal of a memory. The method comprises transmitting from a memory controller a command-address (C/A) signal to a memory module; determining by the memory controller an error in the memory module via an error signal from an error pin of the memory module, the error associated with the C/A signal transmitted to the memory module; and modifying by the memory controller the C/A signal in response to determining an error in the memory module, wherein the error pin is a parity error pin of the memory module, and wherein the memory module comprises a Double Data Rate 4 (DDR4) interface.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: September 10, 2013
    Assignee: Intel Corporation
    Inventors: Santanu Chaudhuri, Joseph H. Salmon, Kuljit S. Bains
  • Publication number: 20120079160
    Abstract: A method and system to adapt communication links statically and/or dynamically to their individual link conditions on a platform. The communicatively coupled devices have logic to adapt one or more settings of a respective one or more communication links with another device based at least in part on a respective metric of received data patterns from the respective one or more communication links. The communicatively coupled devices in the platform have a back channel to allow feedback or information to be sent from one receiving device to a transmitting device in one embodiment of the invention.
    Type: Application
    Filed: September 24, 2010
    Publication date: March 29, 2012
    Inventors: VENKATRAMAN IYER, Arvind Kumar, Santanu Chaudhuri, Darren S. Jue, Dennis R. Halicki
  • Publication number: 20110320867
    Abstract: Described herein is a method and an apparatus for training a memory signal via an error signal of a memory. The method comprises transmitting from a memory controller a command-address (C/A) signal to a memory module; determining by the memory controller an error in the memory module via an error signal from an error pin of the memory module, the error associated with the C/A signal transmitted to the memory module; and modifying by the memory controller the C/A signal in response to determining an error in the memory module, wherein the error pin is a parity error pin of the memory module, and wherein the memory module comprises a Double Data Rate 4 (DDR4) interface.
    Type: Application
    Filed: June 28, 2010
    Publication date: December 29, 2011
    Inventors: Santanu Chaudhuri, Joseph H. Salmon, Kuljit S. Bains
  • Publication number: 20110078370
    Abstract: Link initialization techniques to decouple the read training from the write training. Read training may be accomplished in a robust manner before write training is performed. These techniques may provide significantly improved link initialization times. A user-programmable register within a dynamic random access memory (DRAM) module may be utilized by the decoupled read training and write training processes. The decoupling may result in shorter and more robust training segments that may support faster training and/or increased link speeds.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: SANTANU CHAUDHURI, Klaus Ruff
  • Patent number: 7671694
    Abstract: Embodiments of a programmable passive equalizer are described herein.
    Type: Grant
    Filed: June 2, 2008
    Date of Patent: March 2, 2010
    Assignee: Intel Corporation
    Inventors: Evelina F Yeung, Sanjay Dabral, Pascal Meier, Santanu Chaudhuri
  • Patent number: 7478257
    Abstract: According to some embodiments an apparatus comprising a vote generator, a vote governor, and a local clock controller is provided. The vote generator generates votes based on a local clock signal and transitions in a stream of received data. The vote governor receives the generated votes and discards at least some of the votes. The local clock controller adjusts the local clock signal based on a generated vote that has not been discarded.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: January 13, 2009
    Assignee: Intel Corporation
    Inventors: Sanjay Dabral, Richard S. Jensen, Santanu Chaudhuri
  • Publication number: 20080238588
    Abstract: Embodiments of a programmable passive equalizer are described herein.
    Type: Application
    Filed: June 2, 2008
    Publication date: October 2, 2008
    Inventors: Evelina F. Yeung, Sanjay Dabral, Pascal Meier, Santanu Chaudhuri
  • Patent number: 7394331
    Abstract: Embodiments of a programmable passive equalizer are described herein.
    Type: Grant
    Filed: August 5, 2005
    Date of Patent: July 1, 2008
    Inventors: Evelina F Yeung, Sanjay Dabral, Pascal Meier, Santanu Chaudhuri
  • Patent number: 7209907
    Abstract: A method and apparatus for retraining skew compensation in an interface is presented. In one embodiment, a retraining interval is determined, and counters in the transmitting agent and receiving agent count up until the retraining interval is reached. A tracking unit used to select one of several interpolated clocks may then be powered up, and a special retraining phit may be sent across the interface. During the retraining process, the transfer of flits into and out of the flow-control mechanism may be inhibited. When the retraining process is finished, the tracking unit may be powered down.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: April 24, 2007
    Assignee: Intel Corporation
    Inventors: Naveen Cherukuri, Sanjay Dabral, David S. Dunning, Tim Frodsham, Theodore Z. Schoenborn, Santanu Chaudhuri
  • Publication number: 20070030092
    Abstract: Embodiments of a programmable passive equalizer are described herein.
    Type: Application
    Filed: August 5, 2005
    Publication date: February 8, 2007
    Inventors: Evelina Yeung, Sanjay Dabral, Pascal Meier, Santanu Chaudhuri
  • Publication number: 20060067398
    Abstract: A method, system and apparatus to self-determine equalization parameters for a channel. An initiator sends an equalization insensitive signal (EIS) to a responder on channel to be equalized and begins a count. A responder responds with an EIS. When the initiator receives the response EIS the count is terminated. The count, which constitutes a measure of delay in the channel, may be used to determine desirable equalization parameters for the channel.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 30, 2006
    Inventors: James McCall, Klaus Ruff, David Shykind, Santanu Chaudhuri
  • Publication number: 20050286567
    Abstract: A method and apparatus for retraining skew compensation in an interface is presented. In one embodiment, a retraining interval is determined, and counters in the transmitting agent and receiving agent count up until the retraining interval is reached. A tracking unit used to select one of several interpolated clocks may then be powered up, and a special retraining phit may be sent across the interface. During the retraining process, the transfer of flits into and out of the flow-control mechanism may be inhibited. When the retraining process is finished, the tracking unit may be powered down.
    Type: Application
    Filed: June 25, 2004
    Publication date: December 29, 2005
    Inventors: Naveen Cherukuri, Sanjay Dabral, David Dunning, Tim Frodsham, Theodore Schoenborn, Santanu Chaudhuri
  • Patent number: 6977537
    Abstract: According to some embodiments, a low gain phase-locked loop circuit is provided.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: December 20, 2005
    Assignee: Intel Corporation
    Inventors: Santanu Chaudhuri, Sanjay Dabral, Karthisha Canagasaby
  • Publication number: 20050201454
    Abstract: A method to calibrate an equalizer for communicating signals over a data link between a transmitter and receiver includes measuring loss in the link and automatically determining a multi-tap equalization setting for the transmitter based on the measured loss. The multi-tap equalization setting may be determined using a look-up table, which stores a plurality of equalization settings for a respective number of link loss values. Once the equalization setting matching the measured link loss is found in the table, the equalizer can be optimally set to reduce or eliminate intersymbol and other types of interference.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 15, 2005
    Inventors: Santanu Chaudhuri, James McCall, Konika Ganguly, Michael Gutzmann, Sanjay Dabral, Ken Drottar, Alok Tripathi, Kersi Vakil
  • Patent number: 6922071
    Abstract: A method for setting multiple chip parameters using one IC terminal is described. The chip comprises a first circuit coupled to the pin for setting a first parameter. A second circuit coupled to the pin sets a second parameter. In addition, a third circuit coupled to the pin sets a third parameter of the chip.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: July 26, 2005
    Assignee: Intel Corporation
    Inventors: Sanjay Dabral, Santanu Chaudhuri