Abstract: A switch for handling call connections between calling devices and called devices. The switch comprises: 1) at least one system management node associated with a configuration management controller, the configuration management controller for performing an online upgrade of software in the switch by loading upgraded software in a new partition while original software is executed in a reference partition; and 2) a plurality of computing nodes for executing primary-backup resource server applications. Each of the primary-backup resource server applications comprises a primary resource server application and a secondary resource server application residing on a different node than the primary resource server application. A plurality of the primary-backup resource server applications form a resource group and an address of the resource group is known in the reference partition and in the new partition.

Abstract: An orthogonal polarization multiplexing transmission apparatus capable of performing dispersion compensation considering a short wavelength side and a long wavelength side of a zero dispersion wavelength. A plurality of light signals of different wavelengths are divided into two orthogonal polarization multiplexing portions, and the light signals of an oddnumber array polarization multiplexing portion and an even-number array polarization multiplexing portion are orthogonal-polarization-multiplexed in each orthogonal polarization multiplexing portions. Adjacent light signals of the two orthogonal polarization multiplexing portions have their mutual planes of polarization rendered non-orthogonal when multiplexed by an optical multiplexer so that, for the purpose of deterring inter-symbol interference, a guard hand having the wavelength spacing rendered wider than that on orthogonal polarization multiplexing is provided in advance.

Abstract: The invention provides a method for transmitting an analog data stream (101) from a data stream transmitter (214) to a data stream receiver (215) by means of discrete multitone symbols (208), in which data (123) to be transmitted are input into a data input device (201) of the data stream transmitter (214), the data to be transmitted are coded in a coding device (202) and are combined into coded data blocks (125), the coded data blocks (125) are transformed into a multitone signal (303) in an inverse transformation device (203), the at least one multitone symbol (208) is converted into an analog transmitter signal (211) in a digital-to-analog converter (204), and the analog transmitter signal (211) is transmitted via a transmission channel (102).

Abstract: Two or more cross-connect ICs are interconnected. Each IC directly receives some, but not all, of the system inputs, and outputs to some, but not all, outputs. Each cross-connect IC has a switch matrix that has the same number of inputs as the system, and a lesser number of outputs that matches the number of outputs of the IC. Each cross-connect IC provides fanout of its direct inputs to a link to each other cross-connect IC. Thus, each IC receives inputs either directly, or from a fanout on another IC.

Abstract: A data transmission and distribution system that includes a transmitter and a receiver. The transmitter transmits a count value associated with a data clock of the transmitter to the receiver over an asynchronous link as part of an information payload that also includes audio or video information. The data clock is synchronously recreated at the receiver using only a system clock associated with the receiver and the transmitted count value.

Abstract: Described herein is a method for parallel generating Walsh-Hadamard (WH) channelization codes and Orthogonal Variable Spreading Factor (OVSF) channelization codes, which are channelization codes formed by a plurality of strings of antipodal digits, each having a given length L and being identifiable by respective indices I formed by strings of binary digits, each having a given length N equal to the logarithm in base two of the length L of the channelization codes, the antipodal digits of the channelization codes assuming the values +1 and ?1 and the binary digits of said indices I assuming the values 0 and 1.