Abstract: The technology disclosed can be implemented to construct devices with an array of optical elements to provide power to stimulate a biological process in a nerve system in living objects, and to provide patterned light outputs from the array of optical elements to indicate a corresponding electrical pattern monitored from the biological process in the nerve system. In one aspect a nerve stimulator apparatus is disclosed including a plurality of optical to electrical transducers arranged in a two-dimensional array, wherein each of the plurality of optical to electrical transducers is configured to convert light to an electrical signal; a plurality of electrodes, each electrode associated with one or more associated optical to electrical transducers; and a plurality of electrical interconnects to connect each of the plurality of electrodes to the one or more associated optical transducers.

Abstract: Systems and methods for a digital signage network are provided. In one embodiment, a method for delivering multimedia content in a digital signage network is provided. The method comprises: creating a master playlist on a content server for a digital signage network, the master playlist having a plurality of slots; assigning a first universal media identifier to at least a first slot of the plurality of slots; assigning a first placeholder to at least a second slot of the plurality of slots; and transmitting the master playlist to a plurality of local media players of the digital signage network. The first universal media identifier identifies a first universal content file for display by the plurality of local media players. The first placeholder identifies a slot in the master playlist wherein associated targeted media content is displayable by one or more of the plurality of local media players.