摘要:
Full-Crossover Multi-channel switching matrix for MIMO circuits and systems operating in time and frequency domains The present disclosure relates a switching matrix (100) comprising: a two-dimensional array of n input/output nodes (102), where n is equal to at least four; and a board comprising n network switches, one for each input/output node (102), each network switch coupling its corresponding input/output node to each of first and second switch connection points of the network switch; and, on a first side, a first switching network and on a second side, a second switching network.
摘要:
Optical networking has become ubiquitous in providing low cost, high speed communications networks supporting our communication needs from FTTH through long haul to undersea. The large number of users and high speeds provided to each user fiber mean that information retrieval and routing functionality within the data centers hosting this information can become the bottleneck both in terms of speed and latency. According to embodiments of the invention the inventors present architectures based upon all-optical passive optical networks that support a distributive approach to latency reduction as well as protocols relating to their deployment. Beneficially, such POCXN concepts exploit optical components already supported by high volume manufacturing techniques as well as CWDM/DWDM techniques for throughput increase.
摘要:
The present invention is directed to a fiber management shelf having a removable door, push-push fastening elements on the door, stackable side retainer rings and reduced profile front retainer rings.
摘要:
A digital convertible radio optimizes signal-to-noise ratios by substantially canceling undesired components of a plurality of input data streams present in sector signals in a cellular network. The sector output power is then scaled to optimize the total power at the sector output ports. The input data streams are cross-correlated with each other and with digital representations of the sector signals to produce a plurality of cross-correlated signals. The plurality of cross-correlated signals is combined to identify the undesired crosscorrelated signals. The portion of the undesired signal measurement representing the correlation between the input signal streams are removed using the input signal cross correlation and system transfer function determination. A weighted vector adjustment module produces a plurality of complex weighted vector values that are mixed with the plurality of input data streams. Each weighted vector value is incrementally and sequentially adjusted based, in part, on measured undesired power levels. The real and imaginary components of the weighted vector value are updated with an incremented or decremented value that produces the lowest measured undesired power level.