Abstract:
A switching system (14) at a customer premises communicates information associated with one or more subscribers. The switching system (14) includes multiple subscriber line ports (17) for communicating xDSL signals with subscribers, the xDSL signals containing both data signals and POTS voice signals. A logical port (20) communicates data signals and packetized voice signals from the subscribers with a central office, the switching system (14) converting between the POTS voice signals of the subscriber lines (16) and the packetized voice signals of the logical port (20). A LAN port (21) communicates data signals with a server complex (23) using a LAN (22) to provide data services to the subscribers. The switching system (14) may include a switch (32) that receives voice signals on a first virtual circuit (VC), switches the voice signals out of the switching system (14) on the first VC, and also communicates received data signals for routing. A router (32) within the switching system (14) may receive the data signals from the switch (32) on a second VC, determine a third VC for the data signals, and route the data signals to the switch (32) on the third VC for communication out of the switching system (14) on the third VC.
Abstract:
A method for implementing a hardware database management system in hardware is described. A parser takes standardized database statements and converts those statements into a set of executable instructions and associated data objects. The executable instructions and data objects are then sent to the execution tree engine where an execution tree is created, the execution tree forming the order of execution for the executable instructions. The graph engine receives those executable instructions from the execution tree engine that require access to the database in memory and manipulates the information in the database as required by the executable instructions for implementing the standardized database statement.