Abstract: In one implementation, a content distribution network includes a first plurality of communication paths for Internet Protocol (IP) signals, a router providing a second plurality of communication paths for non-IP signals, and a plurality of signal sources and a plurality of signal destinations. Each signal source is linked to a respective one signal destination by a respective first communication path of the first plurality of communication paths. Each of one or more of the signal sources designated as a protected source is further linked to the respective one signal destination by a second communication path of the second plurality of communication paths. The content distribution network distributes content in one of a first mode in which the first communication path and the second communication path carry the same content contemporaneously, or a second mode in which only the second communication path carries that content.

Abstract: Embodiments provide systems and techniques for testing the functionality of a network architecture having multiple redundant internet protocol (IP) networks. An example system includes a first IP network having a first network device, and a second IP network having a second network device. The system also includes a computing device coupled to the first IP network via the first network device and to the second IP network via the second network device. The first network device is configured to selectively forward first packet(s) of the IP media traffic flow to the computing device when the first packet(s) satisfies a first predetermined condition. The second network device is configured to selectively forward second packet(s) of the IP media traffic flow to the computing device when the second packet(s) satisfies a second predetermined condition.

Abstract: In one implementation, a content distribution network includes a first plurality of communication paths for Internet Protocol (IP) signals, a router providing a second plurality of communication paths for non-IP signals, and a plurality of signal sources and a plurality of signal destinations. Each signal source is linked to a respective one signal destination by a respective first communication path of the first plurality of communication paths. Each of one or more of the signal sources designated as a protected source is further linked to the respective one signal destination by a second communication path of the second plurality of communication paths. The content distribution network distributes content in one of a first mode in which the first communication path and the second communication path carry the same content contemporaneously, or a second mode in which only the second communication path carries that content.

Abstract: In one implementation, a content distribution network includes a first plurality of communication paths for Internet Protocol (IP) signals, a router providing a second plurality of communication paths for non-IP signals, and a plurality of signal sources and a plurality of signal destinations. Each signal source is linked to a respective one signal destination by a respective first communication path of the first plurality of communication paths. Each of one or more of the signal sources designated as a protected source is further linked to the respective one signal destination by a second communication path of the second plurality of communication paths. The content distribution network distributes content in one of a first mode in which the first communication path and the second communication path carry the same content contemporaneously, or a second mode in which only the second communication path carries that content.

Abstract: Embodiments provide systems and techniques for a network architecture design for a converged media facility. An example system includes a plurality of internet protocol (IP) networks, where each IP network is configured to provide a different service for the media facility. At least one of the IP networks is a production media network configured to route multicast media traffic. The system also includes a plurality of first network devices coupled to the plurality of IP networks and a controller configured to manage at least one IP traffic flow within at least one of the plurality of IP networks.

Abstract: Embodiments provide systems and techniques for testing the functionality of a network architecture having multiple redundant internet protocol (IP) networks. An example system includes a first IP network having a first network device, and a second IP network having a second network device. The system also includes a computing device coupled to the first IP network via the first network device and to the second IP network via the second network device. The first network device is configured to selectively forward first packet(s) of the IP media traffic flow to the computing device when the first packet(s) satisfies a first predetermined condition. The second network device is configured to selectively forward second packet(s) of the IP media traffic flow to the computing device when the second packet(s) satisfies a second predetermined condition.

Abstract: A switch includes processing hardware and a memory storing software code. The software code is executed to begin receiving a first video stream from a first media source, begin forwarding the first video stream to a video receiver, begin receiving a second video stream from a second media source, receive a switch command to forward the second video stream to the video receiver instead of the first video stream, and detect, within a frame of the first video stream, a switch point in a video packet header of a video packet contained within that frame. The software code begins forwarding, in response to the switch command and at the switch point, the second video stream to the video receiver, and contemporaneously stops forwarding the first video stream to the video receiver, to provide seamless switching from the first video stream to the second video stream.

Abstract: Embodiments provide systems and techniques for a network architecture design for a converged media facility. An example system includes a plurality of internet protocol (IP) networks, where each IP network is configured to provide a different service for the media facility. At least one of the IP networks is a production media network configured to route multicast media traffic. The system also includes a plurality of first network devices coupled to the plurality of IP networks and a controller configured to manage at least one IP traffic flow within at least one of the plurality of IP networks.

Abstract: The present invention relates to intraocular drug delivery for treating ocular diseases. Particularly, the invention relates to particles useful for the delivery of certain pharmacologically active agents to treat ocular diseases. The particles contain calcium phosphate core particles, particularly nanoparticles, as delivery agents and adjuvants. The invention also relates to methods of making such particles and to methods of treating ocular disease by delivery of a therapeutic drug to an ocular surface using the particles of this invention. The invention further relates to methods of regulating ocular pressure using certain formulations according to the present invention.

Abstract: A voltage sensing apparatus includes an output for a voltage tap point that is useful in representing the voltage on a conductor that passes through the voltage sensing apparatus. The voltage sensing apparatus also performs the function of a separable insulated conductor, e.g. a conventional bushing or bushing insert as utilized in the electrical power distribution field. The voltage sensing apparatus includes a molded body having an embedded capacitance screen that provides the output. The body is molded about the capacitance screen. An arrangement is provided for locating the capacitance screen within the molded body. In a preferred embodiment, the capacitance screen is molded from a conductive plastic preferably formed with an open mesh or screen structure that permits the free flow of molding material.

Abstract: A voltage sensing apparatus is provided with an output for a voltage tap point that is useful in representing the voltage on a conductor that passes through the voltage sensing apparatus. The voltage sensing apparatus also performs the function of a separable insulated conductor or the like, e.g. a conventional bushing or bushing insert as utilized in the electrical power distribution field. The voltage sensing apparatus includes a molded body having an embedded capacitance screen that provides the output. The body is molded about the capacitance screen. An arrangement is provided for locating the capacitance screen within the molded body. In a preferred embodiment, the capacitance screen is molded from a conductive plastic preferably formed with an open mesh or screen structure that permits the free flow of molding material.

Abstract: Novel neurotrophic factor compositions are provided, obtained from lung tissue. The factors are found to be active on parasympathetic ganglion neurons enhancing acetylcholine activity. The compositions find use in the treatment of a number of eye disorders.

Abstract: Novel neutrotrophic factor compositions are provided, obtained from lung tissue. The factors are found to be active on parasympathetic ganglion neutrons enhancing acetylcholine activity. The compositions find use in the treatment of a number of eye disorders.