Patents by Inventor Pulkit Khandelwal

Pulkit Khandelwal 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: 11949629
    Abstract: A signaling link retimer injects flow-rate compensation transmissions into a synthesized symbol stream in coordination with flow-rate compensation transmissions detected within a received symbol stream, enabling the retimer to switch seamlessly between forwarding the received symbol stream and outputting the synthesized symbol stream.
    Type: Grant
    Filed: April 19, 2022
    Date of Patent: April 2, 2024
    Assignee: Astera Labs, Inc.
    Inventors: Enrique Musoll, Subbarao Arumilli, Ken (Keqin) Han, Pulkit Khandelwal, Casey Morrison
  • Patent number: 11941436
    Abstract: An integrated-circuit retimer selectively logs information corresponding to mission-mode data, received and transmitted via counterpart high-bandwidth data interfaces, in real-time and accordance with contents of a logging control storage written by an external component during retimer run time.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: March 26, 2024
    Assignee: Astera Labs, Inc.
    Inventors: Ken (Keqin) Han, Casey Morrison, Charan Enugala, Pulkit Khandelwal, Vikas Khandelwal
  • Patent number: 11853115
    Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.
    Type: Grant
    Filed: September 27, 2022
    Date of Patent: December 26, 2023
    Assignee: Astera Labs, Inc.
    Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi
  • Patent number: 11487317
    Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: November 1, 2022
    Assignee: Astera Labs, Inc.
    Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi
  • Patent number: 11424905
    Abstract: First and second clock signals are generated based on signal transitions within first and second streams of symbols, respectively, received within an integrated circuit component, the first and second clock signals having a time-varying phase offset with respect to one another. A first control circuit, operating in a first timing domain established by the first clock signal, generates first control information based on the first stream of symbols and forwards the first control information, via a domain crossing circuit that bridges the time-varying phase offset, to a second control circuit operating in a second timing domain. The second control circuit generates a third stream of symbols based on the first control information and on the second stream of symbols, and a transmit circuit outputs the third stream of symbols from the integrated circuit component synchronously with respect to the second clock signal.
    Type: Grant
    Filed: April 10, 2021
    Date of Patent: August 23, 2022
    Assignee: Astera Labs, Inc.
    Inventors: Enrique Musoll, Casey Morrison, Ken (Keqin) Han, Pulkit Khandelwal, Subbarao Arumilli
  • Patent number: 11349626
    Abstract: A signaling link retimer injects flow-rate compensation transmissions into a synthesized symbol stream in coordination with flow-rate compensation transmissions detected within a received symbol stream, enabling the retimer to switch seamlessly between forwarding the received symbol stream and outputting the synthesized symbol stream.
    Type: Grant
    Filed: July 8, 2020
    Date of Patent: May 31, 2022
    Assignee: Astera Labs, Inc.
    Inventors: Enrique Musoll, Subbarao Arumilli, Ken (Keqin) Han, Pulkit Khandelwal, Casey Morrison
  • Patent number: 11327913
    Abstract: Groups of signal conductors within a configurable communication system are managed by respective, dedicated media controllers implement a configurable number of independent communication channels through coordinated action so that signal conductors need not be multiplexed to/from multiple controllers and no media controllers or input/output driver circuits therein need be disabled in any configuration.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: May 10, 2022
    Assignee: Astera Labs, Inc.
    Inventors: Casey Morrison, Charan Enugala, Chi Feng, Enrique Musoll, Jitendra Mohan, Ken (Keqin) Han, Pulkit Khandelwal, Subbarao Arumilli, Vikas Khandelwal, Vivek Trivedi
  • Patent number: 11258696
    Abstract: A signaling-link retimer concatenates discontiguous leading and trailing portions of a precoded and scrambled symbol stream, shunting the trailing portion of the stream ahead of unneeded stream content to dynamically reduce the number of symbols queued between retimer input and output and thus reduce retimer transit latency.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: February 22, 2022
    Assignee: Asiera Labs, Inc.
    Inventors: Casey Morrison, Enrique Musoll, Jitendra Mohan, Pulkit Khandelwal, Subbarao Arumilli, Vikas Khandelwal, Ken (Keqin) Han, Charan Enugala, Vivek Trivedi, Chi Feng
  • Patent number: 11150687
    Abstract: A low-latency signaling link retimer generates an output signal transmission synchronously with respect to a core clock signal alternately selected from two or more plesiochronous or mesochronous clock sources with switchover between or among the core-clock sources executed without shrinking, extending or otherwise disrupting the edge-to-edge core clock period or clock duty cycle.
    Type: Grant
    Filed: July 10, 2020
    Date of Patent: October 19, 2021
    Assignee: Astera Labs, Inc.
    Inventors: Jitendra Mohan, Subbarao Arumilli, Charan Enugala, Chi Feng, Ken (Keqin) Han, Pulkit Khandelwal, Vikas Khandelwal, Casey Morrison, Enrique Musoll, Vivek Trivedi
  • Patent number: 10128955
    Abstract: A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: November 13, 2018
    Assignee: INPHI CORPORATION
    Inventors: Todd Rope, Radhakrishnan L. Nagarajan, Jamal Riani, Pulkit Khandelwal
  • Publication number: 20180294884
    Abstract: A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources.
    Type: Application
    Filed: May 25, 2018
    Publication date: October 11, 2018
    Inventors: Todd ROPE, Radhakrishnan L. NAGARAJAN, Jamal RIANI, Pulkit KHANDELWAL
  • Patent number: 10009109
    Abstract: A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: June 26, 2018
    Assignee: INPHI CORPORATION
    Inventors: Todd Rope, Radhakrishnan L. Nagarajan, Jamal Riani, Pulkit Khandelwal
  • Publication number: 20170373759
    Abstract: A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources.
    Type: Application
    Filed: August 28, 2017
    Publication date: December 28, 2017
    Inventors: Todd ROPE, Radhakrishnan L. NAGARAJAN, Jamal RIANI, Pulkit KHANDELWAL
  • Patent number: 9825756
    Abstract: The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. The skew management module generates a control current based on output test patterns of the two communication lanes. The control current is integrated and compared to a reference voltage by a comparator, which generates an analog offset signal. A PLL of one of the communication lanes generates a corrected clock signal that is adjusted using the analog offset signal to remove or adjust the skew between the communication lanes. The corrected clock signal is used for output data. There are other embodiments as well.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: November 21, 2017
    Assignee: INPHI CORPORATION
    Inventors: Halil Cirit, Karthik Gopalakrishnan, Pulkit Khandelwal, Ravindran Mohanavelu
  • Patent number: 9780881
    Abstract: A Pulse Amplitude Modulated (PAM) optical device utilizing multiple wavelengths, features a communications interface having enhanced diagnostics capability. New registers are created to house additional diagnostic information, such as error rates. The diagnostic information may be stored in raw form, or as processed on-chip utilizing local resources.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: October 3, 2017
    Assignee: INPHI CORPORATION
    Inventors: Todd Rope, Radhakrishnan L. Nagarajan, Jamal Riani, Pulkit Khandelwal
  • Publication number: 20170207908
    Abstract: The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. The skew management module generates a control current based on output test patterns of the two communication lanes. The control current is integrated and compared to a reference voltage by a comparator, which generates an analog offset signal. A PLL of one of the communication lanes generates a corrected clock signal that is adjusted using the analog offset signal to remove or adjust the skew between the communication lanes. The corrected clock signal is used for output data. There are other embodiments as well.
    Type: Application
    Filed: December 9, 2016
    Publication date: July 20, 2017
    Inventors: Halil CIRIT, Karthik GOPALAKRISHNAN, Pulkit KHANDELWAL, Ravindran MOHANAVELU
  • Patent number: 9548858
    Abstract: The present invention is directed to communication systems. According to embodiments of the present invention, a communication system includes at least two communication lanes and a skew management module. The skew management module generates a control current based on output test patterns of the two communication lanes. The control current is integrated and compared to a reference voltage by a comparator, which generates an analog offset signal. A PLL of one of the communication lanes generates a corrected clock signal that is adjusted using the analog offset signal to remove or adjust the skew between the communication lanes. The corrected clock signal is used for output data. There are other embodiments as well.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: January 17, 2017
    Assignee: INPHI CORPORATION
    Inventors: Halil Cirit, Karthik Gopalakrishnan, Pulkit Khandelwal, Ravindran Mohanavelu