Patent application number | Description | Published |
20140379161 | Stabilizing a Voltage Supply Network - Methods and devices are provided for network stabilization in smart grid voltage supply networks. Methods for stabilizing voltage supply network include: (1) receiving a control signal by a gateway of at least one subscriber; (2) generating local control commands for turning energy consumption or energy generating devices connected to the gateway on or off by the gateway of the subscriber in dependence on the received control signal; and (3) transmitting the generated local control command via a local network to at least one energy consumption or energy generating device connected to the gateway, wherein the gateway has an effective threshold value, the local control commands for turning on or off are generated when a value transmitted with the control signal exceeds or drops below the effective threshold value, and the effective threshold value is formed from a preset threshold value and a correction parameter. | 12-25-2014 |
20150113267 | Method and System for Providing a Plurality of Tamperproof Digital Certificates for a Plurality of Public Keys of a Device - A method and system for providing a plurality of tamperproof digital certificates for a plurality of public keys of a device by a certification authority wherein a respective signing request for requesting a digital certificate is initially created for each of a plurality of public keys, where the signing request for the ith public key is signed using the jth private key in accordance with a signing rule, the jth private key being dissimilar to the ith private key belonging to the ith public key, and wherein all signing requests are transmitted to the same certification authority in each case, and each signing request is verified in the certification authority, in which case a check is performed to determine whether the ith signing request has been signed using the jth private key in accordance with the signing rule. | 04-23-2015 |
20150264080 | Testing Integrity of Property Data of a Device Using a Testing Device - The invention relates to a method and a test system for testing integrity of property data of a device using a testing device within a network, the devices and their respective property data within the network, such as all the measurement or control device distributed inside an industrial automation system, being taken into account in order to simplify testing of a large number of devices. The various property data are tested for an identity and are labelled, and calculations, which are carried out by the testing device for testing purposes, are initiated on the basis of the labelling. By taking other devices in the system into account, security requirements can be fulfilled during testing and the computational effort for the testing device can also be reduced. | 09-17-2015 |
20150294309 | Method, Device and Service Provision Unit for Authenticating a Customer for a Service to be Provided by the Service Provision Unit - Method, device and service provision means for authenticating a customer for a service to be provided by a service provision means. The invention relates to a method for authenticating a customer for a service to be provided by a service provision means. The method comprises the steps of: authentication of a customer as member of a defined customer group on the service provision means by means of a first group signature assigned to the defined customer to prove authorization of the customer to avail himself of a service; request for the service from the service provision means by the authenticated customer; and authentication of the customer as a member of the defined customer group by means of a second group signature assigned to the defined customer group to demonstrate the customer's consent to a billing process for billing the requested service at the billing centre. The method allows for a secure use of the service while assuring the customer's anonymity. The invention further relates to a device for performing the method and a service provision means. | 10-15-2015 |
Patent application number | Description | Published |
20130223531 | VIDEO CODING USING TEMPORALLY COHERENT DYNAMIC RANGE MAPPING - A more efficient co-use of dynamic range mapping on the one hand and temporal prediction on the other hand such as, for example, in order to code HDR frame sequences, is achieved by exploiting the concept of weighted prediction in order to transition from the mapping parameter from the reference frame to the currently temporally predicted frame. By this measure, the temporal prediction does not fail and despite the frame-wise variation in the dynamic range mapping, encoding efficiency is, thus, maintained. As a favorable side aspect, weighted temporal prediction is already within the capabilities of existing video coding stages such as, for example, the H.264/AVC. | 08-29-2013 |
20140241418 | INTER-LAYER PREDICTION BETWEEN LAYERS OF DIFFERENT DYNAMIC SAMPLE VALUE RANGE - The ratio between coding quality on the one hand and coding rate on the other hand is increased. To this end, a global predictor and a local predictor are used in combination. The global predictor derives a global tone-mapping function based on a statistical analysis of pairs of values of co-located samples in the first tone-mapped version and the second version of the picture, and applies the global tone-mapping function onto the first tone-mapped version of the picture. The local predictor locally derives a locally varying tone-mapping function based on a statistical analysis of values of co-located samples in the second version of the picture and the globally predicted reference picture in units of sub-portions into which the globally predicted reference picture and the second version of the picture are partitioned, and applies the locally varying tone-mapping function onto the globally predicted reference picture. | 08-28-2014 |
Patent application number | Description | Published |
20080223671 | Wheel-Guiding Pneumatic Spring Damper Unit - A pneumatic spring and damper unit ( | 09-18-2008 |
20130147099 | PNEUMATIC SPRING STRUT HAVING A RESILIENT PISTON BEARING - A pneumatic spring strut for a vehicle, having a working chamber which is at least partially enclosed by a pneumatic spring bellows and having a centrally arranged telescopic damper, wherein the pneumatic spring bellows is fastened to the pneumatic spring cover and to a pneumatic spring piston connected to the damper cylinder and can roll on the outer side of the pneumatic spring piston, wherein the pneumatic spring piston is connected, at its top end and above the roll fold, to the damper cylinder by an elastic bearing, and the elastic bearing is composed of an elastomer body which is provided between a collar, which is situated on the damper cylinder, and a flange, which is arranged on the pneumatic spring piston, wherein the collar situated on the damper cylinder is arranged below the piston-rod-side end of the damper cylinder. | 06-13-2013 |
20140027962 | AIR SPRING HAVING HYBRID BELLOWS - An air spring assembly for a motor vehicle, including an air spring, a rolling piston, a tubular rolling air spring bellows arranged concentrically about a central longitudinal axis of the air spring, and an air spring cover. A first partial air spring bellows has a first embedded textile reinforcement and a second partial air spring bellows has a second embedded textile reinforcement The first textile reinforcement has first reinforcing threads, the preferred axis of which extends parallel or nearly parallel to the axis of the central longitudinal axis of the air spring The second textile reinforcement has second reinforcing threads, the first preferred axis of which extends obliquely to the longitudinal axis of the air spring and the second preferred axis of which extends obliquely to the longitudinal axis of the air spring, wherein the first and the second preferred axis are at an angle to each other. | 01-30-2014 |
20150108699 | AIR SPRING AND METHOD FOR FOLDING OVER AN AIR SPRING BELLOWS OF AN AIR SPRING - An air spring for chassis of vehicles, which is clamped with an air spring piston and an air spring cover between the chassis and vehicle body of a motor vehicle, includes an elastomeric air spring bellows which at least partially delimits a compressed air-filled working chamber and which, forming at least one rolling fold, rolls on the air spring piston. The air spring bellows is attached by clamping elements to the air spring cover and the air spring piston, including an external guide attached to the air spring bellows and spaced apart from the air spring cover and attached to the air spring bellows such that a partial piece of the air spring bellows is formed between the air spring cover and the external guide as a cardanic fold which permits deflection of the air spring bellows produced by forces acting perpendicular to the axis of the air spring bellows. | 04-23-2015 |
20150159725 | AIR SPRING STRUT - An air spring strut including an air spring and a damper for springing and damping vibrations of a motor vehicle chassis, the air spring strut being clamped between the body and the chassis of the motor vehicle, including an elastomer air spring bellows clamped between an air spring cover and an air spring rolling piston in an air-tight manner, and which rolls on the air spring rolling piston while forming a rolling fold; an outer guide surrounds the air spring bellows in a sleeve-like manner; a bellows protects the rolling fold from accumulating dirt and is fixed to an outer guide end facing away from the air spring cover; and a vent ventilates a space surrounded by the bellows. The vent has ventilation openings on a bellows end facing the chassis, and additional ventilation openings in the bellows for facilitating air flow within the bellows in the direction of the chassis. | 06-11-2015 |
Patent application number | Description | Published |
20100260448 | Radially mobile floating bearing - Disclosed is a radially movable floating bearing for a shaft of a gear of a steering system, comprising a bushing or an inner ring or a rolling bearing, which is supported in a seat of a frame or housing of the gear. The inner ring or the bushing or the rolling bearing is held by at least one support element made of material having elastomeric properties which is inserted into a gap between the seat and the inner ring, the support element being designed as a pivot bearing. In order to provide a radially movable floating bearing for a steering system gear shaft, which is low-noise, easy to pivot and highly resilient, the pivot bearing cooperates with a damping stop disposed tangentially at a distance thereto, the stop being disposed at a radial distance from the inner ring or the seat. | 10-14-2010 |
20120125132 | Bearing system for a worm in a steering gear - Disclosed is a bearing system for a worm engaging with a worm wheel as part of a steering gear, wherein the bearing system comprises at least one bearing with an outer ring, an inner ring, and rolling bodies that are movably accommodated between the outer an inner rings, the bearing being pivotally arranged in a bearing seat for accommodating the outer ring of the bearing, and wherein the inner ring accommodates one of the two shaft ends of the worm in order to seat said shaft end of the worm radially in the housing of the steering gear. For an improved dampening of the worm at least one spring element, which exerts a spring force on a region of the outer ring of the bearing, is provided at the bearing, said spring force supporting a pivotal motion of the worm toward the worm wheel. | 05-24-2012 |
Patent application number | Description | Published |
20090117444 | FUEL CELL SYSTEM WITH A METERING UNIT - The invention relates to a fuel cell installation comprising a fuel cell unit ( | 05-07-2009 |
20120085464 | COMPRESSED GAS SYSTEM, MANUAL VALVE ASSEMBLY, AND MANUAL VALVE PISTON WITH ISOCHORIC THERMAL ISOLATION ZONE - Manual-valve pistons, manual-valve assemblies comprising the manual-valve pistons, and compressed-gas systems comprising the manual-valve-assemblies are disclosed. A manual-valve piston for sealing a compressed-gas conduit may comprise a head portion, a sealing portion, and a stem portion between the head portion and the sealing portion. When the manual-valve piston in a conduit, a gap is defined between a blocking rim of the head portion that allows compressed gas to be trapped in an isochoric thermal isolation zone adjacent to the stem portion. The isochoric thermal isolation zone protects sealing rings seated in the sealing portion from extremely cold compressed gas being introduced into the compressed-gas system. Manual-valve assemblies comprise a manual-valve piston coupled to a coupling body. Compressed-gas systems comprise a fuel-storage vessel, a refueling port, internal conduits, and a manual-valve assembly disposed in one of the internal conduits. | 04-12-2012 |
20150014945 | Back-Up Ring Design "Split & Close" - A back-up ring assembly for high pressure gas components includes a first ring having and a second ring. The first ring is split at a first location with a first split angle, while the second ring is split at a second location with a second split angle. The first ring is concentrically positioned adjacent the second ring with the first location being offset relative to the second location. The back-up ring assembly is positionable adjacent to an O-ring in a sealed coupling in a high pressure application. | 01-15-2015 |