Siemens Aktiengellschaft Patent applications |
Patent application number | Title | Published |
20150145330 | Coupling-in and coupling-out of power in a branch of a DC voltage network node comprising a longitudinal voltage source - A device for load flow control of a direct current in a branch of a direct current voltage network node having a longitudinal voltage source which has a coupling device for connection or disconnection of electrical power. The coupling device for connection and disconnection of electrical power are connected to a coupling device for connection and disconnection of electric power of a further load flow control device which is disposed in another branch of the same direct current voltage network node. Thus the device can be used economically and flexibly for control of a load flow on or in a network node. | 05-28-2015 |
20090143088 | Dynamic Allocation of Radio Resources in a Multicarrier Communication System - Communication carried out over a frequency band divided into a plurality of subcarriers by messages transmitted between a first radio station and a second radio station in a plurality of hops between respectively adjacent radio stations arranged in hierarchical levels. A subset of the subcarriers is used for each hop. The subsets used are allocated by at least one higher level radio station and the composition of at least one of the subsets used varies over time. | 06-04-2009 |