Hewlett-packard Development Company, L.P.

Xtera Communications, Inc.

Neptune Subsea IP Limited

James A Hess

David R Maciorowski

J Michael Andrewartha

Edward A Cross

An integrated assembly for switching optical signals. The integrated assembly includes two subassemblies. For instance, the subassemblies might be a shelf assembly and the integrated assembly might be a rack assembly in which the shelf assemblies are connected. Each of the subassemblies includes optical interfaces configured to support communication of optical channels to and from the integrated assembly using the corresponding subassembly. Each subassembly might also include multiple switch fabric assemblies each including a switching mechanism. An inter-subassembly communication interface is provided between each subassembly. An optical signal may be switched from one of the subassemblies (e.g., one of the shelves) to another even though there is no intervening switching circuitry in between the different subassemblies. Instead, the switching operation is distributed between the subassemblies.

Integrated assembly for switching optical signals

One embodiment of a non-volatile memory system comprises block-accessible non-volatile memory, random access memory arranged to be linearly addressable by a processor as part of the processor's memory address space, to be read from and written to by the processor, and logic interposed between the block-accessible non-volatile memory and the random access memory and arranged to write parts of the content of the random access memory in blocks to blocks of the non-volatile, block-accessible memory. The logic is arranged to monitor processor writes to the random access memory, and to write blocks of the random access memory that differ from a most recent copy in the non-volatile, block-accessible memory to the non-volatile, block-accessible memory.

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McKinney, TX, United States of America

James A Hess