Patents by Inventor Kamran Sharifi

Kamran Sharifi 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: 20200219085
    Abstract: An electronic device may include a printed circuit board having a physically unclonable function (PUF) source. The electronic device may also include an integrated circuit (IC) chip positioned on the printed circuit board, and the first PUF source may be embedded in or formed on the printed circuit board external to the IC chip. The IC chip has processing circuitry that is configured to determine PUF data based on the PUF source. The processing circuitry is further configured to determine a cryptographic key or authentication token based on the PUF data and to perform at least one secure operation using the cryptographic key or authentication token.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Applicant: Square, Inc.
    Inventors: Kamran Sharifi, Jeremy Wade, Bertram Leesti, Afshin Rezayee, Yue Yang, Max Joseph Guise
  • Publication number: 20200202357
    Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a chip card interface. The monitoring system can establish a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card 14 is present in the slot 21. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the baseline can indicate that a tamper attempt at the chip card interface may have occurred. If a tamper attempt is determined by the monitoring system, a remedial or corrective action can be taken.
    Type: Application
    Filed: March 5, 2020
    Publication date: June 25, 2020
    Applicant: Square, Inc.
    Inventors: Afshin Rezayee, Malcolm Smith, Yue Yang, Jeremy Wade, Max Guise, Kamran Sharifi
  • Patent number: 10621590
    Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a chip card interface. The monitoring system can establish a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card 14 is present in the slot 21. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the baseline can indicate that a tamper attempt at the chip card interface may have occurred. If a tamper attempt is determined by the monitoring system, a remedial or corrective action can be taken.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: April 14, 2020
    Assignee: Square, Inc.
    Inventors: Afshin Rezayee, Malcolm Smith, Yue Yang, Jeremy Wade, Max Guise, Kamran Sharifi
  • Patent number: 10438189
    Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a physical interface such as a chip card interface. The monitoring system can establish local tamper criteria including a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card is present in the slot. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the local test criteria can indicate that a tamper attempt at the chip card interface may have occurred. The payment processing device may also communicate test results to a server for further testing, or for an update of the local test criteria.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: October 8, 2019
    Assignee: Square, Inc.
    Inventors: Afshin Rezayee, Malcolm Smith, Yue Yang, Jeremy Wade, Max Guise, Kamran Sharifi
  • Publication number: 20190028282
    Abstract: A device may include one or more sources such as circuit elements and electrical components that function as sources for physically unclonable function (PUF) data. PUF data may be acquired from the PUF sources and one or more error correction codes may be applied to the PUF data. The resulting PUF values may be used to generate information that may be used for device security operations such as encryption and tamper detection.
    Type: Application
    Filed: December 15, 2017
    Publication date: January 24, 2019
    Inventors: Kamran Sharifi, Afshin Rezayee, Jeremy Wade, Yue Yang, Max Joseph Guise, Bertram Leesti
  • Publication number: 20190028283
    Abstract: A device may include one or more sources such as circuit elements and electrical components that function as sources for physically unclonable function (PUF) data. PUF data may be acquired from the PUF sources and one or more error correction codes may be applied to the PUF data. The resulting PUF values may be used to generate information that may be used for device security operations such as encryption and tamper detection.
    Type: Application
    Filed: January 31, 2018
    Publication date: January 24, 2019
    Inventors: Kamran Sharifi, Afshin Rezayee, Jeremy Wade, Yue Yang, Max Joseph Guise, Bertram Leesti
  • Publication number: 20180240103
    Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a physical interface such as a chip card interface. The monitoring system can establish local tamper criteria including a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card is present in the slot. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the local test criteria can indicate that a tamper attempt at the chip card interface may have occurred. The payment processing device may also communicate test results to a server for further testing, or for an update of the local test criteria.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Applicant: Square, Inc.
    Inventors: Afshin Rezayee, Malcolm Smith, Yue Yang, Jeremy Wade, Max Guise, Kamran Sharifi
  • Publication number: 20180240117
    Abstract: A payment processing device can implement a monitoring system to detect for tamper attempts at a chip card interface. The monitoring system can establish a baseline when no chip card is present in the chip card interface, or in some embodiments, when it is known that an authentic chip card 14 is present in the slot 21. During subsequent evaluations of the chip card interface by the monitoring system, a response received by the monitoring system that deviates from the baseline can indicate that a tamper attempt at the chip card interface may have occurred. If a tamper attempt is determined by the monitoring system, a remedial or corrective action can be taken.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 23, 2018
    Applicant: Square, Inc.
    Inventors: Afshin Rezayee, Malcolm Smith, Yue Yang, Jeremy Wade, Max Guise, Kamran Sharifi
  • Patent number: 9219951
    Abstract: A mobile TV system architecture for a mobile terminal that reduces the processing required by the main processor during reception of digital broadcasts such as DVB-H. The mobile terminal architecture includes a main processor system and a mobile TV receiver device. The mobile TV receiver device includes units for SI/PSI processing, IP processing and decryption engine. The SI/PSI (service information/program specific information) processing unit receives non-protected transport stream (TS) packets and extracts SI/PSI tables which can be stored in memory local to the receiver device. The IP processing unit receives decrypted error-corrected protected packets containing multimedia content. The receiver device may include an HTTP server for communicating with a browser application running on the main processor system. The browser application presents multimedia content, received via HTTP, corresponding to a URL entered or selected by a user.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: December 22, 2015
    Assignee: ANALOG DEVICES, INC.
    Inventor: Kamran Sharifi
  • Publication number: 20090100475
    Abstract: A mobile TV system architecture for a mobile terminal that reduces the processing required by the main processor during reception of digital broadcasts such as DVB-H. The mobile terminal architecture includes a main processor system and a mobile TV receiver device. The mobile TV receiver device includes units for SI/PSI processing, IP processing and decryption engine. The SI/PSI (service information/program specific information) processing unit receives non-protected transport stream (TS) packets and extracts SI/PSI tables which can be stored in memory local to the receiver device. The IP processing unit receives decrypted error-corrected protected packets containing multimedia content. The receiver device may include an HTTP server for communicating with a browser application running on the main processor system. The browser application presents multimedia content, received via HTTP, corresponding to a URL entered or selected by a user.
    Type: Application
    Filed: June 11, 2008
    Publication date: April 16, 2009
    Applicant: Analog Devices, Inc.
    Inventor: Kamran Sharifi
  • Patent number: 6298037
    Abstract: An electronic filter has an input connector adapted for electrical connection to a complimentary output connector of an asymmetrical digital subscriber line. The input connector has an input voltage node for providing electrical input signals to the electronic filter. Similarly, the filter has an output connector adapted for electrical connection to a complimentary input connector of a data receiving device. The output connector has an output voltage node for providing electrical output signals from the electronic filter. The filter selectively passes frequency components of the electrical signals, frequency components below a predetermined corner frequency passing from the input connector to the output connector, frequency components above the predetermined corner frequency not passing from the input connector to the output connector.
    Type: Grant
    Filed: December 14, 1998
    Date of Patent: October 2, 2001
    Assignee: Analog Devices, Inc.
    Inventor: Kamran Sharifi