Patent application number | Description | Published |
20090170526 | DETERMINING POSITION OF A NODE AND REPRESENTING THE POSITION AS A POSITION PROBABILITY SPACE - Methods and apparatus are provided for determining and representing a location or position of a node in a network. When the node receives position measurement information from a reference node, the node generates, based on the position measurement information, a position probability space (PPS) which defines a space that encompasses possible positions where the node is possibly positioned in the network. The PPS includes a centroid (i.e., a set of coordinates), and a set of vectors which originate from the centroid and define the space around the centroid. The magnitude of each vector reflects the accuracy of the position in the direction of the vector. | 07-02-2009 |
20090190558 | METHOD AND APPARATUS FOR LINK ADAPTATION BY STOCHASTICALLY SELECTING A TRANSMIT PARAMETER - A method and apparatus for link adaptation is provided. A node stores a set of transmit parameters and corresponding selection probabilities for each of the transmit parameters. The node stochastically selects a particular transmit parameter based on the selection probabilities, and then transmits a packet according to the particular selected transmit parameter. From received transmission feedback information, the node derives performance statistics, and uses the performance statistics to specify an estimated performance function for the particular transmit parameter. The node updates a selection probability computation function (SPCF), and uses the SPCF to generate updated selection probabilities corresponding to each transmit parameter in the set of available transmit parameters. | 07-30-2009 |
20100056174 | METHOD FOR PROXIMITY DETECTION IN A WIRELESS COMMUNICATION NETWORK - A method for proximity detection in a wireless communication network. A node attempts to determine the proximity of the closest neighboring node by transmitting a ranging request. Other nodes respond, and the first node to receive and respond to the request will have the shortest response time and thus will be the closest node. Exact ranges can be determined by applying Time-Of-Arrival (TOA) techniques to node response times. To further avoid collisions, one or more frames of the response messages can be same, making the multiple responses appear as multi-path. The group of responders can be narrowed and individual groups probed in a search pattern until the single nearest node is known or range of the nearest node is known. The ranging node may then use ordinary unicast mechanisms to probe this node, or begin scanning the groups again, or interleave the two mechanisms as desired. | 03-04-2010 |
Patent application number | Description | Published |
20100028765 | Rechargeable battery - A rechargeable battery has a plurality of rechargeable battery cells which are situated in an interspaced manner in a rechargeable battery housing filled at least partially with a filler material which encloses the rechargeable battery cells, with a first rechargeable battery cell including a first casing, and a second rechargeable battery cell including a second casing, such that the first casing and the second casing having different wall thicknesses, at least in sections. | 02-04-2010 |
20110042117 | ENERGY STORAGE MODULE AND POWER TOOL COMPRISING AT LEAST ONE ENERGY STORAGE MODULE - The invention is based on an energy storage module, in particular a battery pack for supplying power to a power tool. According to the invention, a plurality of cells are interconnected electrically for energy storage. It is proposed that the cells are electrochemical storage cells having a flexible cell casing that is dimensionally unstable. The invention further relates to a power tool having at least one such energy storage module. | 02-24-2011 |
20110206950 | ENERGY STORAGE UNIT, PARTICULARLY ACCUMULATOR - The building of energy storage, particularly accumulators have a plurality of storage elements such as electrochemical cells, condensers, BatCaps, and the like, out of similar elements connected to one another, is known. It is disadvantageous that the storage elements largely have either distinct high-energy properties or high-power properties. A potential improvement lies in the overall performance of the energy storage, and in optimally adjusting energy inputs to output power. An energy storage is proposed, particularly an accumulator, having a plurality of storage elements. At least two strands of storage elements are connected in parallel, each strand including at least one storage element of a certain type, differing from the type of the other strand. The energy storage according to the invention is intended for accumulator-driven or battery-drive electric tools and vehicle batteries, particularly for electric drives. | 08-25-2011 |
20140044996 | BATTERY CELL - A battery cell ( | 02-13-2014 |
20140102688 | METHOD AND DEVICE FOR HOMOGENIZING THE TEMPERATURE DISTRIBUTION OF BODIES WHICH HAVE FLUIDIC TEMPERATURE CONTROL - A device and a method for controlling the temperature of a unit to be controlled in its temperature, including a unit to be heated or cooled, a temperature-control circuit having a recirculatable, heat-transferring medium, the flow direction of the medium through the temperature-control circuit being reversed following at least one predefined time interval or according to a control based on a temperature of the unit to be controlled in its temperature, characterized by the fact that the intake temperature of the recirculatable, heat-transferring medium is higher than the setpoint temperature of the unit to be controlled in its temperature, as long as the actual temperature of the unit requiring temperature control is lower than its setpoint temperature, and the intake temperature of the recirculatable, heat-transferring medium is lower than the setpoint temperature of the unit to be controlled in its temperature, if the actual temperature of the unit to be controlled in its temperature exceeds its setpoint temperature. | 04-17-2014 |
20140363713 | ELECTRICAL ENERGY STORAGE CELL AND METHOD FOR PRODUCING AN ELECTRICAL ENERGY STORAGE CELL - The invention relates to an electrical energy storage cell comprising a multiplicity of first electrode elements with parallel surfaces, a multiplicity of second electrode elements with parallel surfaces which run parallel to the surfaces of the first electrode elements, which second electrode elements are galvanically isolated from the first electrode elements, a first planar contact element, which makes electrical contact with the multiplicity of first electrode elements, a second planar contact element, which makes electrical contact with the multiplicity of second electrode elements, at least one first planar contact connector, which makes electrical contact with the first contact element, a first pole contact, which makes electrical contact with the first planar contact connector, and a second pole contact, which is electrically connected to the second planar contact element. | 12-11-2014 |
20140370348 | ELECTRICAL ENERGY STORAGE MODULE AND METHOD FOR PRODUCING AN ELECTRICAL ENERGY STORAGE MODULE - The invention relates to an electrical energy storage module, comprising at least one storage cell stack ( | 12-18-2014 |