Abstract: An oxygen setpoint controller (SPC) and a user's display for a rebreathing apparatus wherein the user exhales oxygen depleted breath into a closed rebreathing loop, the CO2 is scrubbed from the exhaled gases, oxygen is added to the rebreathing loop to maintain the oxygen at a specified partial pressure, and the oxygen enhanced gases in the rebreathing are provided to the user. The SPC is able to detect the failure of any of the oxygen sensors and provide an alarm condition to the user. The SPC further operates to provide dive data such as rate of ascent, time of dive, depth, and PPO2 to the uses, and to store and retain dive data for further review. The SPC further provides numerical dive data to a heads up display (HUD). The HUD further includes a tricolor LED displaying selected analog parameters.

Abstract: A distributed virtual machine architecture includes a virtual machine client (16) and a virtual machine server (32). The virtual machine client provides a platform upon which an application may be run on a host device (12). The virtual machine server may appear anywhere within the network to which the host of the virtual machine client is connected (14). When the application request a class, the virtual machine client determines such class exists on the local host (12) or a client proxy exist for the class. If neither exists, the virtual machine client connects to the virtual machine server to send a request for the class. If a proxy does exist, a proxy is returned to the virtual machine client. However, if a proxy does not exist, the virtual machine server dynamically generates the proxy (34) to be returned to the virtual machine client.

Abstract: A distributed virtual machine architecture includes a virtual machine client (16) and a virtual machine server (32). The virtual machine client provides a platform upon which an application may be run on a host device (12). The virtual machine server may appear anywhere within the network to which the host of the virtual machine client is connected (14). When the application request a class, the virtual machine client determines such class exists on the local host (12) or a client proxy exist for the class. If neither exists, the virtual machine client connects to the virtual machine server to send a request for the class. If a proxy does exist, a proxy is returned to the virtual machine client. However, if a proxy does not exist, the virtual machine server dynamically generates the proxy (34) to be returned to the virtual machine client.