Abstract: Embodiments of the present invention described and shown in the specification and drawings facilitate data packet transportation. One aspect of the invention multiplexes time-sensitive TDM (Time Division Multiplexed) and other synchronous data, and asynchronous data traffic, onto a communication channel in a manner that minimizes jitter in the delivery of the TDM data traffic while efficiently transporting asynchronous data traffic. Another aspect of the invention provides dynamic bandwidth sharing on a communication ring. The dynamic bandwidth sharing aspect of the present invention facilitates the efficient utilization of bandwidth of communication rings, particularly in those rings that cover large geographic areas.

Abstract: Embodiments of the present invention described and shown in the specification and drawings facilitate the transportation of data packets having diverse formats through a general packet switching system. Due to the diverse formats of the data packets used by various common communications protocols, it is has been difficult to produce general packet switching systems that are able to switch multiple protocols. Embodiments of the present invention provide a Unified Data Packet for encapsulating data packets having diverse formats. Through encapsulation, embodiments of the present invention improve switching system efficiency by providing a single data packet format for handling by the switching system while enabling data packets in diverse formats to pass through the switch.

Abstract: A segmented protection system and method. The invention comprises a plurality of Processing Modules arranged in series along a Protection Bus. A number of Protection Groups may be formed along the Protection Bus, with each Protection Group comprising at least one Protection Processing Module and at least one Working Processing Module. Upon failure of the Working Processing Module, the Protection Processing Module substitutes for the failed Working Processing Module.

Abstract: Embodiments of the present invention described and shown in the specification and drawings facilitate the transportation of data packets having diverse formats through a general packet switching system. Due to the diverse formats of the data packets used by various common communications protocols, it is has been difficult to produce general packet switching systems that are able to switch multiple protocols. Embodiments of the present invention provide a Unified Data Packet for encapsulating data packets having diverse formats. Through encapsulation, embodiments of the present invention improve switching system efficiency by providing a single data packet format for handling by the switching system while enabling data packets in diverse formats to pass through the switch.

Abstract: Methods, systems, computer programs and apparatus for changing a processor state. In example embodiments of the invention, software porting onto an operating system calls a library routine, which creates an illegal instruction for special values in parameter registers. An illegal instruction exception handler recognizes the illegal instructions for special values in parameter registers, and, upon detecting the illegal instruction, enables or disables an interrupt state of a CPU associated with the system.

Abstract: Redundant load sharing power supplies may use lower amperage pilot fuses to monitor the condition of higher amperage main line fuses carrying load current. An alarm monitoring circuit is activated when the pilot fuse has blown. The load sharing characteristics of these supplies may proportion current such that the pilot fuse may not be blown when the main line fuse is missing or blown. An embodiment of the present invention provides a system for ensuring activation of a power distribution alarm monitoring circuit in a load sharing power application using multiple loads to draw current from the power inputs. A control circuit enables current to flow in a controlled manner to blow the pilot fuse to ensure activation of a power distribution alarm monitoring circuit. Ensuring activation of the alarm monitoring circuit allows accurate identification of a faulty supply and satisfies a required operations condition of many telecommunications systems providers.

Abstract: A method for controlling loop bandwidth of a phase locked loop is described. The method includes setting the loop bandwidth to a value, calculating at least one of a phase error and a frequency change that occur subsequent to any setting or adjusting of loop bandwidth, and adjusting the loop bandwidth based on at least one of the phase error and the frequency change.

Abstract: Embodiments of the present invention described and shown in the specification and drawings facilitate data packet transportation. One aspect of the invention multiplexes time-sensitive TDM (Time Division Multiplexed) and other synchronous data, and asynchronous data traffic, onto a communication channel in a manner that minimizes jitter in the delivery of the TDM data traffic while efficiently transporting asynchronous data traffic. Another aspect of the invention provides dynamic bandwidth sharing on a communication ring. The dynamic bandwidth sharing aspect of the present invention facilitates the efficient utilization of bandwidth of communication rings, particularly in those rings that cover large geographic areas.

Abstract: A system that facilitate data packet transportation includes multiplexing time-sensitive TDM (Time Division Multiplexed) and other synchronous data, and asynchronous data traffic, onto a communication channel in a manner that minimizes jitter in the delivery of the TDM data traffic while efficiently transporting asynchronous data traffic. The system may also include dynamic bandwidth sharing on a communication ring. The dynamic sharing aspect of the system facilitates the efficient utilization of bandwidth of communication rings, particularly in those rings that cover large geographic areas.

Abstract: A segmented protection system and method. The invention comprises a plurality of Processing Modules arranged in series along a Protection Bus. A number of Protection Groups may be formed along the Protection Bus, with each Protection Group comprising at least one Protection Processing Module and at least one Working Processing Module. Upon failure of the Working Processing Module, the Protection Processing Module substitutes for the failed Working Processing Module.