Patents by Inventor Vipul Bhatt

Vipul Bhatt 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: 20240137130
    Abstract: An optical receiver includes an error generator, a multipath interference estimator, and a combiner. The error generator is configured to receive an input comprising a received optical signal, to estimate a modulation level of samples of the received optical signal, and to generate an error signal based on the estimated modulation level of the samples, the error signal representing a difference between an actual level of the received optical signal and the estimated modulation level. The multipath interference estimator is configured to generate estimates of multipath interference (MPI) associated with the samples of the received optical signal based on the error signal. The combiner is configured to generate an MPI-mitigated signal based on a combination of the samples and the estimates of MPI.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 25, 2024
    Inventors: Benjamin P. SMITH, Jamal RIANI, Sudeep BHOJA, Arash FARHOODFAR, Vipul BHATT
  • Publication number: 20240118506
    Abstract: In one example, an optoelectronic module may include a stack assembly including an electrical integrated circuit and an optical integrated circuit electrically and mechanically coupled to one another, an interposer electrically and mechanically coupled to the stack assembly, and an optical connector to optically couple the optical integrated circuit with an array of optical fibers.
    Type: Application
    Filed: December 18, 2023
    Publication date: April 11, 2024
    Inventors: Gilles P. Denoyer, Daniel MAHGEREFTEH, Vipul Bhatt, Shiyun LIN, Brian Kim
  • Patent number: 11886023
    Abstract: In one example, an optoelectronic module may include a stack assembly including an electrical integrated circuit and an optical integrated circuit electrically and mechanically coupled to one another, an interposer electrically and mechanically coupled to the stack assembly, and an optical connector to optically couple the optical integrated circuit with an array of optical fibers.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: January 30, 2024
    Assignee: II-VI DELAWARE, INC.
    Inventors: Gilles P. Denoyer, Daniel Mahgerefteh, Vipul Bhatt, Shiyun Lin, Brian Kim
  • Patent number: 11855702
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: December 26, 2023
    Assignee: MARVELL ASIA PTE LTD
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20220173814
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Inventors: Benjamin P. SMITH, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Patent number: 11258518
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: February 22, 2022
    Assignee: MARVELL ASIA PTE LTD.
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20210075516
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Inventors: Benjamin P. SMITH, Jamal RIANI, Sudeep BHOJA, Arash FARHOODFAR, Vipul BHATT
  • Publication number: 20210048587
    Abstract: In one example, an optoelectronic module may include a stack assembly including an electrical integrated circuit and an optical integrated circuit electrically and mechanically coupled to one another, an interposer electrically and mechanically coupled to the stack assembly, and an optical connector to optically couple the optical integrated circuit with an array of optical fibers.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 18, 2021
    Inventors: Gilles P. Denoyer, Daniel Mahgerefteh, Vipul Bhatt, Shiyun Lin, Brian Kim
  • Patent number: 10880015
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: December 29, 2020
    Assignee: INPHI CORPORATION
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20200186256
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Inventors: Benjamin P. SMITH, Jamal RIANI, Sudeep BHOJA, Arash FARHOODFAR, Vipul BHATT
  • Patent number: 10601518
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: March 24, 2020
    Assignee: INPHI CORPORATION
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20190158189
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Inventors: Benjamin P. SMITH, Jamal RIANI, Sudeep BHOJA, Arash FARHOODFAR, Vipul BHATT
  • Patent number: 10236994
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: March 19, 2019
    Assignee: INPHI CORPORATION
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20180102852
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Application
    Filed: December 8, 2017
    Publication date: April 12, 2018
    Inventors: Benjamin P. SMITH, Jamal RIANI, Sudeep BHOJA, Arash FARHOODFAR, Vipul BHATT
  • Patent number: 9876581
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: January 23, 2018
    Assignee: INPHI CORPORATION
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20170230119
    Abstract: A circuit and method for mitigating multi-path interference in direct detection optical systems is provided. Samples of an optical signal having a pulse amplitude modulated (PAM) E-field are processed by generating a PAM level for each sample. For each sample, the sample is subtracted from the respective PAM level to generate a corresponding error sample. The error samples are lowpass filtered to produce estimates of multi-path interference (MPI). For each sample, one of the estimates of MPI is combined with the sample to produce an interference-mitigated sample.
    Type: Application
    Filed: February 10, 2016
    Publication date: August 10, 2017
    Inventors: Benjamin P. Smith, Jamal Riani, Sudeep Bhoja, Arash Farhoodfar, Vipul Bhatt
  • Publication number: 20090234635
    Abstract: A system for scheduled and instant translations from speech to text has a web server for receiving translation requests and registering translation capabilities, a database for storing the requests and capabilities, a scheduler for issuing connection requests between a requester and a translator, a connection server for handling connections between the requester and translator, the connection server also migrating connections from requestor-server-translator to requestor-translator. The system recognizes request types of scheduled, on-demand, and bulk. A scheduled or on-demand translation request results in one or more verifications of availability, and then a connection is made from the requester to the translation resource.
    Type: Application
    Filed: April 29, 2009
    Publication date: September 17, 2009
    Inventors: Vipul Bhatt, Vijayant Palaiya
  • Patent number: 4681397
    Abstract: A cross point of an N.times.M optical switching network is defined by a pair of switches, a first of which couples optical information from a row waveguide to a bypass waveguide. The second switch couples the information from the bypass to a column waveguide. An optical eraser may be employed to absorb any information not switched. The eraser is positioned along the row waveguide downstream of the cross point. Each switch at a cross point as well as the eraser includes actuators which, in fiber optic embodiments, move the respective elements of the switch (or eraser) from positions at which only negligible coupling occurs to more closely spaced positions at which significant coupling occurs, upon command.
    Type: Grant
    Filed: June 28, 1985
    Date of Patent: July 21, 1987
    Assignee: AMP Incorporated
    Inventor: Vipul Bhatt