Patents by Inventor Subramanian Muthu

Subramanian Muthu 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: 9974145
    Abstract: A system and method provide fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method provides daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: May 15, 2018
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Subramanian Muthu, Robert Hick, Jaiganesh Balasubramanian, John Elzie
  • Publication number: 20170105267
    Abstract: A system and method provide fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method provides daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
    Type: Application
    Filed: December 22, 2016
    Publication date: April 13, 2017
    Applicant: Leviton Manufacturing Co., Inc.
    Inventors: Subramanian Muthu, Robert Hick, Jaiganesh Balasubramanian, John Elzie
  • Patent number: 9271375
    Abstract: A system and method are disclosed for providing fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method is also disclosed for daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: February 23, 2016
    Assignee: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu
  • Patent number: 9095013
    Abstract: A system and method provide fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method provides daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: July 28, 2015
    Assignee: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Richard A. Leinen, Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu
  • Publication number: 20150192183
    Abstract: An energy absorbing element comprises: stiff members, wherein adjacent stiff members are connected by opposing hinges; and a central member connecting a first pair of the opposing hinges along a longitudinal direction; wherein the stiff members have a greater tensile strength than the central member; and wherein the central member is adapted to elastically extend along the longitudinal direction when an impact normal to the central member is applied to the energy absorbing element.
    Type: Application
    Filed: January 8, 2014
    Publication date: July 9, 2015
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Kumar Subramanian Muthu, Dinesh Mana
  • Publication number: 20140375218
    Abstract: A system and method provide fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method provides daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Richard A. Leinen, Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu
  • Publication number: 20140239817
    Abstract: A system and method are disclosed for providing fail-safe operation of a lighting system. A lighting level detector is used to obtain a baseline lighting level for a low-intensity light. If the detector measures less than the baseline level when an occupancy sensor determines the space is unoccupied, a high-intensity light is energized and an indication is provided to a user that the low-intensity light has failed. A method is also disclosed for daylighting operation of a lighting system. An occupancy sensor can have Wi-Fi functionality to enable remote configuration of the sensor. A line voltage occupancy sensor can include an interface with low voltage devices. An occupancy sensor can include an integral interface to enable an external control system to override the sensor's normal logic under emergency conditions. An occupancy sensor can include an active temperature compensation feature. An occupancy sensor can also incorporate an automatically adjustable coverage area.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 28, 2014
    Applicant: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Richard A. Leinen, Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu, Robert Hick, John Elzie, Brian Carberry, David Buerer
  • Patent number: 8755944
    Abstract: A module including a case; an electrical switching device configured to control power to a load; and a controller coupled to the electrical switching device. The electrical switching device and the controller are substantially encapsulated by the case. Functionality of the module can be exposed through a communication interface in the case.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 17, 2014
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu
  • Publication number: 20140132084
    Abstract: A controllable electrical receptacle is disclosed. The electrical receptacle includes a housing having a pair of sockets suitable for receiving electrical plugs. The receptacle includes an antenna disposed beneath a cover portion of the receptacle. The antenna is configured to receive wireless signals from an occupancy sensor or other controller and to control power to the sockets based on the received signals. The antenna is also configured to transmit wireless signals. The antenna may be routed around the sockets to minimize interference caused by metal components of the receptacle. The antenna may be sandwiched between a pair of non-metal layers of the housing to avoid direct exposure to the environment while maintaining a desired performance. In one embodiment the antenna is a wire member received within a routing groove formed in a portion of the housing. The routing groove includes features for retaining the wire member in the groove.
    Type: Application
    Filed: November 12, 2012
    Publication date: May 15, 2014
    Applicant: LEVITON MANUFACTURING COMPANY, INC.
    Inventors: Hoa Pham, Dan Wright, Jason Betournay, Subramanian Muthu
  • Patent number: 8626542
    Abstract: Methods and apparatuses are described for creating and using full-kit tasks, monitoring the progress of full-kit tasks, determining full-kit dates, checking compliance of release conditions associated with full-kit tasks, and/or computing and reporting full-kit task delays. A full-kit task can be used in the project plan to represent the preparations that are required or recommended to be performed before executing a set of tasks. The full-kit task can be a zero-duration task that has a full-kit date and that includes a list of items which need to be completed by the full-kit date. The full-kit task is capable of being in one of the following states: not started, in progress, released, and completed. In some embodiments, the set of tasks associated with the full-kit task can only be started if the full-kit task is either in the released state or the completed state.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: January 7, 2014
    Assignee: Realization Technologies, Inc.
    Inventors: Ajai Kapoor, Pankaj P. Painuly, Travis F. Higgins, Puneet Murgai, Corvin Bazgan, Subramanian Muthu
  • Patent number: 8620703
    Abstract: Methods and apparatuses are described for creating and using full-kit tasks, monitoring the progress of full-kit tasks, determining full-kit dates, checking compliance of release conditions associated with full-kit tasks, and/or computing and reporting full-kit task delays. A full-kit task can be used in the project plan to represent the preparations that are required or recommended to be performed before executing a set of tasks. The full-kit task can be a zero-duration task that has a full-kit date and that includes a list of items which need to be completed by the full-kit date. The full-kit task is capable of being in one of the following states: not started, in progress, released, and completed. In some embodiments, the set of tasks associated with the full-kit task can only be started if the full-kit task is either in the released state or the completed state.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 31, 2013
    Assignee: Realization Technologies, Inc.
    Inventors: Ajai Kapoor, Pankaj P. Painuly, Travis F. Higgins, Puneet Murgai, Corvin Bazgan, Subramanian Muthu
  • Patent number: 8620704
    Abstract: Methods and apparatuses are described for creating and using full-kit tasks, monitoring the progress of full-kit tasks, determining full-kit dates, checking compliance of release conditions associated with full-kit tasks, and/or computing and reporting full-kit task delays. A full-kit task can be used in the project plan to represent the preparations that are required or recommended to be performed before executing a set of tasks. The full-kit task can be a zero-duration task that has a full-kit date and that includes a list of items which need to be completed by the full-kit date. The full-kit task is capable of being in one of the following states: not started, in progress, released, and completed. In some embodiments, the set of tasks associated with the full-kit task can only be started if the full-kit task is either in the released state or the completed state.
    Type: Grant
    Filed: July 19, 2011
    Date of Patent: December 31, 2013
    Assignee: Realization Technologies, Inc.
    Inventors: Ajai Kapoor, Pankaj P. Painuly, Travis F. Higgins, Puneet Murgai, Corvin Bazgan, Subramanian Muthu
  • Publication number: 20130231793
    Abstract: A networked lighting control device may include a switching device to control power to a load, a communication interface to couple the relay module to a control module at the relay panel, revenue-grade metering circuitry to monitor power flowing to the load, and a controller to control the switching device in response to inputs received at the communication interface and to transmit metrology data to the control module. A control module may include a mounting interface to mount the control module to a relay panel, a first communication port to receive first control inputs using a first protocol, a second communication port to receive second control inputs using a second protocol, a third communication port to control one or more relay modules mounted to the relay panel using the local communication format, and logic to translate the first and second control inputs to the local communication format.
    Type: Application
    Filed: March 1, 2012
    Publication date: September 5, 2013
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Randall B. Elliott, Subramanian Muthu, David Bruno
  • Publication number: 20130175128
    Abstract: In one embodiment, a multi-stage energy absorbing system can comprise: a base; and an energy absorber comprising elements, wherein the energy absorber elements comprise a pair of outer sidewalls having a narrow section with a narrow section angle and a wide section with a wide section angle, wherein the narrow section and the wide section are connected by a diverging section with a diverging section angle, wherein the diverging section angle is less than 90°; a connecting wall between the outer sidewalls; a pair of inner sidewalls; and an inner connecting wall, wherein the energy absorbing elements are in a nested arrangement creating an open area between adjacent sidewalls and adjacent connecting walls.
    Type: Application
    Filed: January 5, 2012
    Publication date: July 11, 2013
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Subramanian Muthu Kumar, Dinesh Mana, Matthew Douglas Marks, Gregory Everett Tremblay
  • Publication number: 20120306621
    Abstract: A networked lighting control device may include an RFID tag device to couple the lighting control device to an RFID reader device on a mobile unit. In some embodiments, the RFID tag device may enable the lighting control device to perform one or more configuration operations in response to the mobile unit. The configuration operations may include reading the RFID tag device with an RFID reader device in a mobile unit, determining the location of the networked lighting control device at the mobile unit, and displaying the location of the networked lighting control device at the mobile unit. In other embodiments, the RFID tag device may operate as part of a lighting control network.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 6, 2012
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventor: Subramanian Muthu
  • Patent number: 8324761
    Abstract: A module including a case; an electrical switching device configured to control power to a load; and a controller coupled to the electrical switching device. The electrical switching device and the controller are substantially encapsulated by the case. Functionality of the module can be exposed through a communication interface in the case.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 4, 2012
    Assignee: Leviton Manufacturing Co., Inc.
    Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu
  • Publication number: 20120181865
    Abstract: A power distribution unit includes one or more first terminals to connect the unit to a building power wiring line circuit, one or more second terminals to connect the unit to a building power wiring load circuit, a power supply coupled between the first terminals and the second terminals to convert power from the building power wiring line circuit to DC power for the building power wiring load circuit, and a transmitter adapted to modulate a data signal on the DC power. A method includes disconnecting a building power wiring load circuit from a relay and an AC load, and connecting a DC power supply and a DC load to the building power wiring load circuit.
    Type: Application
    Filed: January 14, 2011
    Publication date: July 19, 2012
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventor: Subramanian Muthu
  • Publication number: 20110246977
    Abstract: A system including multiple control system devices. The control system devices include a processor; a memory coupled to the processor and configured to store code for the control system device; and a communication interface coupled to the processor. A control system device is configured to receive updated code corresponding to at least one of the control system devices, and configured to transmit the updated code to the corresponding at least one of the control system devices.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Kevin Parsons, Subramanian Muthu, David E. Burgess, Richard A. Leinen
  • Publication number: 20110115460
    Abstract: A module including a case; an electrical switching device configured to control power to a load; and a controller coupled to the electrical switching device. The electrical switching device and the controller are substantially encapsulated by the case. Functionality of the module can be exposed through a communication interface in the case.
    Type: Application
    Filed: March 31, 2010
    Publication date: May 19, 2011
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu
  • Publication number: 20110115448
    Abstract: A module including a case; an electrical switching device configured to control power to a load; and a controller coupled to the electrical switching device. The electrical switching device and the controller are substantially encapsulated by the case. Functionality of the module can be exposed through a communication interface in the case.
    Type: Application
    Filed: March 31, 2010
    Publication date: May 19, 2011
    Applicant: LEVITON MANUFACTURING CO., INC.
    Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu