Osram Sylvania Inc.

Javier Rojas

Marc Hoffknecht

Liam O'Hagan

Timothy J Poupore

Steve Armstrong

Peter Reist

Systems and methods for delivering energy on a bus used for communication between devices are provided. Systems and methods dynamically provide a predetermined recovery time between communication messages calculated from forward and response message types and/or length, and a model of the energy reserve in the network devices to allow time for energy storage circuits in the devices to charge. In addition or alternatively, systems and methods provide an extra recovery time between messages to allow the bus voltage to recover from a fold-back mode and/or include an extra current limit circuit to increase a power supply current when the combined energy required by the network devices is greater than a current limit on a power supply.

Energy delivery on paths used for communication

A system including a bus and a plurality of devices coupled thereto and configured to communicate with each other via the bus. The system further includes a power supply coupled to the bus, to power to the plurality of devices via the bus and to detect an event, and in response, alternately supply power to the plurality of devices via the bus at a first current level or at a lesser second current level. This allows additional devices to be used on a bus, even where the total power consumption of the devices would normally exceed a maximum defined by a bus architecture. This also helps allow a single gauge of wire to be used throughout a bus network (even where long lengths of wire are required) while still providing sufficient power to the devices connected to the bus.

Communication system with variable output supply current

Systems for helping identify faults on a bus, as well as to determine the topology of a bus network, are disclosed. A system according to one embodiment includes a bus interface for connecting to a bus and a switch coupled to the bus interface, the switch configured to alternate between an open state and a closed state. The system is connected to the bus via the bus interface when the switch is in the closed state, and the system is disconnected from the bus via the bus interface when the switch is in the open state.

Systems and methods to detect bus network fault and topology

A power supply according to various embodiments of the disclosure is configured to detect an event and, in response to the event, alternately supply power to a plurality of provided devices via a provided bus at a first current level or at a second current level, the second current level less than the first current level. Among other things, embodiments in this disclosure help allow additional devices to be used on a bus, even where the total power consumption of the devices would normally exceed a maximum defined by a bus architecture. Furthermore, various embodiments help allow a single gauge of wire to be used throughout a bus network (even where long lengths of wire are required) while still providing sufficient power to the devices connected to the bus.

System bus with variable output power supply

A switch according to various embodiments of the disclosure comprises a mechanical actuator configured to control a function associated with the switch and a face coupled to the actuator. The face is configured to depress in response to a force applied to at least a portion of the face, whereby depression of the face engages the actuator to control the function associated with the switch. The face includes a plurality of segments, each segment for controlling a respective additional function associated with the switch. A respective capacitive touch sensor is coupled to each respective segment of the plurality of segments, wherein each capacitive touch sensor is configured to control the function associated with its respective segment in response to detecting human skin in contact with the segment.

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Mississauga, Canada

Javier Rojas