Today it is part of Cirrus Logic.
CobraNet is a combination of software, hardware and network protocol which allows distribution of many channels of real-time, high quality digital audio over an Ethernet network. CobraNet is supported for repeater and switched Ethernet variants. On repeater networks, CobraNet eliminates collisions and allows full bandwidth utilization of the network. CobraNet uses standard Ethernet packets and network infrastructure (controllers, hubs, repeaters, switches, cabling, etc.).
Source: Cirrus Logic
ASI6416 - CobraNet PCI Sound Card