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).
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Patent number: 9974145Abstract: 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: GrantFiled: December 22, 2016Date of Patent: May 15, 2018Assignee: Leviton Manufacturing Co., Inc.Inventors: Subramanian Muthu, Robert Hick, Jaiganesh Balasubramanian, John Elzie
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Publication number: 20170105267Abstract: 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: ApplicationFiled: December 22, 2016Publication date: April 13, 2017Applicant: Leviton Manufacturing Co., Inc.Inventors: Subramanian Muthu, Robert Hick, Jaiganesh Balasubramanian, John Elzie
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Patent number: 9271375Abstract: 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: GrantFiled: February 25, 2013Date of Patent: February 23, 2016Assignee: LEVITON MANUFACTURING COMPANY, INC.Inventors: Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu
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Patent number: 9095013Abstract: 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: GrantFiled: September 8, 2014Date of Patent: July 28, 2015Assignee: LEVITON MANUFACTURING COMPANY, INC.Inventors: Richard A. Leinen, Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu
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Publication number: 20150192183Abstract: 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: ApplicationFiled: January 8, 2014Publication date: July 9, 2015Applicant: SABIC Innovative Plastics IP B.V.Inventors: Kumar Subramanian Muthu, Dinesh Mana
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Publication number: 20140375218Abstract: 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: ApplicationFiled: September 8, 2014Publication date: December 25, 2014Inventors: Richard A. Leinen, Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu
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Publication number: 20140239817Abstract: 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: ApplicationFiled: February 25, 2013Publication date: August 28, 2014Applicant: LEVITON MANUFACTURING COMPANY, INC.Inventors: Richard A. Leinen, Jaiganesh Balasubramanian, Justin Morton, Subramanian Muthu, Robert Hick, John Elzie, Brian Carberry, David Buerer
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Patent number: 8755944Abstract: 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: GrantFiled: March 31, 2010Date of Patent: June 17, 2014Assignee: Leviton Manufacturing Co., Inc.Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu
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Publication number: 20140132084Abstract: 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: ApplicationFiled: November 12, 2012Publication date: May 15, 2014Applicant: LEVITON MANUFACTURING COMPANY, INC.Inventors: Hoa Pham, Dan Wright, Jason Betournay, Subramanian Muthu
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Patent number: 8626542Abstract: 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: GrantFiled: July 19, 2011Date of Patent: January 7, 2014Assignee: Realization Technologies, Inc.Inventors: Ajai Kapoor, Pankaj P. Painuly, Travis F. Higgins, Puneet Murgai, Corvin Bazgan, Subramanian Muthu
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Patent number: 8620704Abstract: 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: GrantFiled: July 19, 2011Date of Patent: December 31, 2013Assignee: Realization Technologies, Inc.Inventors: Ajai Kapoor, Pankaj P. Painuly, Travis F. Higgins, Puneet Murgai, Corvin Bazgan, Subramanian Muthu
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Patent number: 8620703Abstract: 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: GrantFiled: July 19, 2011Date of Patent: December 31, 2013Assignee: Realization Technologies, Inc.Inventors: Ajai Kapoor, Pankaj P. Painuly, Travis F. Higgins, Puneet Murgai, Corvin Bazgan, Subramanian Muthu
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Publication number: 20130231793Abstract: 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: ApplicationFiled: March 1, 2012Publication date: September 5, 2013Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Randall B. Elliott, Subramanian Muthu, David Bruno
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Publication number: 20130175128Abstract: 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: ApplicationFiled: January 5, 2012Publication date: July 11, 2013Applicant: SABIC INNOVATIVE PLASTICS IP B.V.Inventors: Subramanian Muthu Kumar, Dinesh Mana, Matthew Douglas Marks, Gregory Everett Tremblay
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Publication number: 20120306621Abstract: 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: ApplicationFiled: June 3, 2011Publication date: December 6, 2012Applicant: LEVITON MANUFACTURING CO., INC.Inventor: Subramanian Muthu
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Patent number: 8324761Abstract: 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: GrantFiled: March 31, 2010Date of Patent: December 4, 2012Assignee: Leviton Manufacturing Co., Inc.Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu
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Publication number: 20120181865Abstract: 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: ApplicationFiled: January 14, 2011Publication date: July 19, 2012Applicant: LEVITON MANUFACTURING CO., INC.Inventor: Subramanian Muthu
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Publication number: 20110246977Abstract: 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: ApplicationFiled: March 31, 2010Publication date: October 6, 2011Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Kevin Parsons, Subramanian Muthu, David E. Burgess, Richard A. Leinen
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Publication number: 20110115448Abstract: 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: ApplicationFiled: March 31, 2010Publication date: May 19, 2011Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu
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Publication number: 20110115460Abstract: 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: ApplicationFiled: March 31, 2010Publication date: May 19, 2011Applicant: LEVITON MANUFACTURING CO., INC.Inventors: Randall B. Elliott, Richard A. Leinen, Robert L. Hick, Kevin Parsons, Subramanian Muthu