Patents by Inventor John N. Tran

John N. Tran 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: 11788739
    Abstract: An evaporator coil system includes a segmented evaporator coil. The segmented evaporator coil includes a primary segment and a secondary segment. A first plurality of evaporator circuit lines are fluidly coupled to the primary segment and a second plurality of evaporator circuit lines are fluidly coupled to the secondary segment. A suction line includes a first connection fluidly coupled to the primary segment and a second connection fluidly coupled to the secondary segment. A valve is arranged in fluid communication with the secondary segment so as to selectively restrict refrigerant flow through the secondary segment.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: October 17, 2023
    Assignee: Lennox Industries Inc.
    Inventors: Rakesh Goel, John N. Tran
  • Patent number: 11250224
    Abstract: A method includes providing a power supply package (PSP) that includes a power supply, an RFID tag, and a power switch, where a control terminal of the power switch is coupled to an output terminal of the RFID tag, and load path terminals of the power switch are coupled between an output terminal of the PSP and a first terminal of the power supply, where a control register of the RFID tag is pre-programmed with a first value such that the RFID tag is configured to generate a first control signal that turns off the power switch; receiving, by the RFID tag, a second value for the control register of the RFID tag; and writing, by the RFID tag, the second value to the control register of the RFID tag such that the RFID tag is configured to generate a second control signal that turns on the power switch.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: February 15, 2022
    Assignee: STMicroelectronics, Inc.
    Inventor: John N. Tran
  • Publication number: 20210190396
    Abstract: An evaporator coil system includes a segmented evaporator coil. The segmented evaporator coil includes a primary segment and a secondary segment. A first plurality of evaporator circuit lines are fluidly coupled to the primary segment and a second plurality of evaporator circuit lines are fluidly coupled to the secondary segment. A suction line includes a first connection fluidly coupled to the primary segment and a second connection fluidly coupled to the secondary segment. A valve is arranged in fluid communication with the secondary segment so as to selectively restrict refrigerant flow through the secondary segment.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Applicant: Lennox Industries Inc.
    Inventors: Rakesh Goel, John N. Tran
  • Patent number: 10969145
    Abstract: An evaporator coil system includes a segmented evaporator coil. The segmented evaporator coil includes a primary segment and a secondary segment. A first plurality of evaporator circuit lines are fluidly coupled to the primary segment and a second plurality of evaporator circuit lines are fluidly coupled to the secondary segment. A suction line includes a first connection fluidly coupled to the primary segment and a second connection fluidly coupled to the secondary segment. A valve is arranged in fluid communication with the secondary segment so as to selectively restrict refrigerant flow through the secondary segment.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: April 6, 2021
    Assignee: Lennox Industries Inc.
    Inventors: Rakesh Goel, John N. Tran
  • Publication number: 20210089731
    Abstract: A method includes providing a power supply package (PSP) that includes a power supply, an RFID tag, and a power switch, where a control terminal of the power switch is coupled to an output terminal of the RFID tag, and load path terminals of the power switch are coupled between an output terminal of the PSP and a first terminal of the power supply, where a control register of the RFID tag is pre-programmed with a first value such that the RFID tag is configured to generate a first control signal that turns off the power switch; receiving, by the RFID tag, a second value for the control register of the RFID tag; and writing, by the RFID tag, the second value to the control register of the RFID tag such that the RFID tag is configured to generate a second control signal that turns on the power switch.
    Type: Application
    Filed: December 1, 2020
    Publication date: March 25, 2021
    Inventor: John N. Tran
  • Patent number: 10878207
    Abstract: A method includes providing a power supply package (PSP) that includes a power supply, an RFID tag, and a power switch, where a control terminal of the power switch is coupled to an output terminal of the RFID tag, and load path terminals of the power switch are coupled between an output terminal of the PSP and a first terminal of the power supply, where a control register of the RFID tag is pre-programmed with a first value such that the RFID tag is configured to generate a first control signal that turns off the power switch; receiving, by the RFID tag, a second value for the control register of the RFID tag; and writing, by the RFID tag, the second value to the control register of the RFID tag such that the RFID tag is configured to generate a second control signal that turns on the power switch.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: December 29, 2020
    Assignee: STMicroelectronics, Inc.
    Inventor: John N. Tran
  • Patent number: 9081946
    Abstract: A USB mass storage device includes a memory, USB interface and USB controller. A biometric circuit provides biometric authentication and a secure microcontroller is operatively connected to the biometric circuit and the USB controller and operative in accordance as a trusted platform and having a command set to access security functions and trust authentication of a user using the biometric circuit.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: July 14, 2015
    Assignee: STMICROELECTRONICS, INC.
    Inventors: Serge Fruhauf, David Tamagno, Andre Dostie, John N. Tran, Klaus P. Uehlecke, Sean R. Newton
  • Patent number: 7938329
    Abstract: A smart card device includes a card body; and a plurality of card contacts carried by the card body. A smart card chip circuit includes a processor carried by the card body and operably connected to the contacts. At least one memory stores a set of instructions relating to initiating and completing smart card transactions between the smart card device and a smart card host. A biometric circuit is carried by the card body and operable with the processor and used for verifying identity of a user for subsequent smart card device usage. Power is received through a first contact for powering a power circuit for the smart card and a biometric subsystem power circuit receives power through a second contact.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: May 10, 2011
    Assignee: STMicroelectronics, Inc.
    Inventor: John N. Tran
  • Patent number: 7900830
    Abstract: A system of detecting biometric and non-biometric, standard smart card devices includes a smart card host and smart card device reader, which is operable for receiving an Answer to Reset signal and determining whether the smart card device comprises a biometric or non-biometric, standard smart card device. If a biometric smart card device is detected, the smart card reader is operable for applying power used for standard smart card device operation to a first contact and applying power used by a biometric circuit to a second contact, and if a non-biometric, standard smart card device is detected, applying power only to the first contact.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: March 8, 2011
    Assignee: STMicroelectronics, Inc.
    Inventor: John N. Tran
  • Publication number: 20090321519
    Abstract: A system of detecting biometric and non-biometric, standard smart card devices includes a smart card host and smart card device reader, which is operable for receiving an Answer to Reset signal and determining whether the smart card device comprises a biometric or non-biometric, standard smart card device. If a biometric smart card device is detected, the smart card reader is operable for applying power used for standard smart card device operation to a first contact and applying power used by a biometric circuit to a second contact, and if a non-biometric, standard smart card device is detected, applying power only to the first contact.
    Type: Application
    Filed: August 6, 2009
    Publication date: December 31, 2009
    Applicant: STMicroelectronics, Inc. (a corporation of the State of Delaware)
    Inventor: John N. TRAN
  • Publication number: 20090250523
    Abstract: A system of detecting biometric and non-biometric, standard smart card devices includes a smart card host and smart card device reader, which is operable for receiving an Answer to Reset signal and determining whether the smart card device comprises a biometric or non-biometric, standard smart card device. If a biometric smart card device is detected, the smart card reader is operable for applying power used for standard smart card device operation to a first contact and applying power used by a biometric circuit to a second contact, and if a non-biometric, standard smart card device is detected, applying power only to the first contact.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 8, 2009
    Applicant: STMicroelectronics, Inc.
    Inventor: John N. TRAN
  • Patent number: 7594603
    Abstract: A system of detecting biometric and non-biometric, standard smart card devices includes a smart card host and smart card device reader, which is operable for receiving an Answer to Reset signal and determining whether the smart card device comprises a biometric or non-biometric, standard smart card device. If a biometric smart card device is detected, the smart card reader is operable for applying power used for standard smart card device operation to a first contact and applying power used by a biometric circuit to a second contact, and if a non-biometric, standard smart card device is detected, applying power only to the first contact.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: September 29, 2009
    Assignee: STMicroelectronics, Inc.
    Inventor: John N. Tran