Abstract: In one example, a sensor node comprises a core node to enable lighting control for a luminaire. The core node has a base forming a plug portion of a socket. The plug portion has at least one optional pin and represents a NEMA socket including a receptacle that is attached to the base of the core node such that the core node is enclosed by the NEMA socket. The socket provides light level control for a light-emitting diode (LED) driver for the luminaire. The sensor node further comprises one or more peripheral devices having sensors for detecting conditions and producing sensor information based on the detected conditions. The sensor node also includes a pod bus which enables power signals to be transmitted to each of the peripheral devices.

Abstract: In one example, a sensor node comprises a core node to enable lighting control for a luminaire. The core node has a base forming a plug portion of a socket. The plug portion has at least one optional pin and represents a NEMA socket including a receptacle that is attached to the base of the core node such that the core node is enclosed by the NEMA socket. The socket provides light level control for a light-emitting diode (LED) driver for the luminaire. The sensor node further comprises one or more peripheral devices having sensors for detecting conditions and producing sensor information based on the detected conditions. The sensor node also includes a pod bus which enables power signals to be transmitted to each of the peripheral devices.

Abstract: A method and a system of lighting nodes having a core node and sensor pods is described. A core node, representing a master device, is positioned within a luminaire housing to enable lighting control for the luminaire. At least one peripheral device representing an integrated sensor pod, an external sensor pod, or a video node. Each of the peripheral devices representing a slave device and includes one or more sensors for detecting conditions. A pod bus, representing a master-slave bus, enables power signals to be transmitted to each of the peripheral devices. The pod bus also enables the core node to query each of the peripheral devices and each of the peripheral devices to respond to a query from the core node.

Abstract: A method and a system of lighting nodes having a core node and sensor pods is described. A core node, representing a master device, is positioned within a luminaire housing to enable lighting control for the luminaire. At least one peripheral device representing an integrated sensor pod, an external sensor pod, or a video node. Each of the peripheral devices representing a slave device and includes one or more sensors for detecting conditions. A pod bus, representing a master-slave bus, enables power signals to be transmitted to each of the peripheral devices. The pod bus also enables the core node to query each of the peripheral devices and each of the peripheral devices to respond to a query from the core node.

Abstract: A clock and data recovery (CDR) system that generates one or more clock signals from a received data stream and determines an optimal clock signal to associate with the incoming data stream. The system includes a candidate clock generation circuit that operates to receive the incoming data stream and generate candidate clock signals. A transition density detector circuit determines a transition density parameter associated with each of the candidate clock signals. A controller operates to determine the optimal clock signal based on the transition density parameters.

Abstract: System for transporting a sub-rate data stream over a communication network using a selected network protocol. The sub-rate data stream has an associated sub-rate protocol. The system includes a rate adapter to receive the sub-rate data stream and adapt a rate characteristic asso=iated with the sub-rate protocol to a rate characteristic associated with the selected network protocol to generate a rate-adapted data stream. The system also includes a payload framer to receive the rate-adapted data stream and frame the rate-adapted data stream into a payload for transmission over the communication network using the selected network protocol.

Abstract: A clock and data recovery (CDR) system that generates one or more clock signals from a received data stream and determines an optimal clock signal to associate with the incoming data stream. The system includes a candidate clock generation circuit that operates to receive the incoming data stream and generate candidate clock signals. A transition density detector circuit determines a transition density parameter associated with each of the candidate clock signals. A controller operates to determine the optimal clock signal based on the transition density parameters.

Abstract: System for transporting a sub-rate data stream over a communication network using a selected network protocol. The sub-rate data stream has an associated sub-rate protocol. The system includes a rate adapter to receive the sub-rate data stream and adapt a rate characteristic asso=iated with the sub-rate protocol to a rate characteristic associated with the selected network protocol to generate a rate-adapted data stream. The system also includes a payload framer to receive the rate-adapted data stream and frame the rate-adapted data stream into a payload for transmission over the communication network using the selected network protocol.