Patent application number | Description | Published |
20080264156 | PROCEDURE FOR DIAGNOSING A FUEL TANK VENTILATION SYSTEM OF A VEHICLE AND DEVICE FOR IMPLEMENTING THE PROCEDURE - A procedure for diagnosing a tank system of a vehicle with at least two controllable tank ventilation valves, with at least two points of release for a tank ventilation mixture, whereby at least a first point of release runs into an inlet manifold of a combustion engine downstream of a throttle device and at least a second point of release is arranged in an inlet manifold of the combustion engine upstream of the throttle device, especially upstream of a compressor, is thereby characterized, in that for diagnosing the functionality of the tank ventilation system the at least two tank ventilation valves are controlled independently of each other and its functionality can be implied due to the pressure that occurs in the tank system. | 10-30-2008 |
20100263730 | METHOD AND DEVICE FOR CONTROLLING AN INTERNAL COMBUSTION ENGINE - A method and a device for controlling a fuel-operated internal combustion engine of a motor vehicle having a tank venting system associated with a fuel tank and having at least two operating states, in which the internal combustion engine is shut off automatically according to a shut-off strategy. The shut-off strategy takes into account the instantaneous operating state of the tank venting system. | 10-21-2010 |
20100305828 | METHOD FOR CHECKING THE OPERATIONAL CAPABILITY OF A FUEL TANK VENTILATION VALVE - A method for checking the operational capability of a fuel tank ventilation valve ( | 12-02-2010 |
20110067487 | Method for testing the operability of a tank shutoff valve of a fuel tank system - A method for testing the operability of a tank shutoff valve of a fuel tank system which is controlled by valves includes performing defined triggering of the tank shutoff valve and simultaneous introduction of an overpressure or partial vacuum into the fuel tank system via a pressure source, and the operability of the tank shutoff valve is determined on the basis of a variable which characterizes the introduction of the overpressure or partial vacuum. | 03-24-2011 |
20110100210 | DIAGNOSIS OF THE OPERABILITY OF FUEL VAPOUR INTERMEDIATE STORES - A method is provided for diagnosing the operability of fuel vapor intermediate stores ( | 05-05-2011 |
20130319378 | VENTING SYSTEM, IN PARTICULAR FOR A FUEL TANK - In a venting system, in particular for a fuel tank of a motor vehicle, which has a sorption filter for temporarily storing fuel evaporating from the fuel tank and a fluid-conveying conveying device situated between the sorption filter and an air supply or an intake manifold of an internal combustion engine, according to the present system, the conveying device is a bidirectional conveying device which is switchable in a first conveying direction in the direction of the internal combustion engine for regenerating the sorption filter and in a second conveying direction in the direction of the sorption filter for carrying out a fuel tank leak diagnosis. | 12-05-2013 |
20140013944 | DEVICE FOR SELECTIVELY REGENERATING OR PERFORMING TANK LEAKAGE DIAGNOSIS OF A TANK VENTILATION SYSTEM - A device for selectively regenerating and performing tank leakage diagnosis of a tank ventilation system has a sorption filter and a pump. The sorption filter is configured to temporarily store fuel evaporating from a fuel tank. The pump is arranged at a fresh-air side of the sorption filter and is connected in fluid-conducting fashion to the sorption filter. The pump is configured to generate a fluid flow to regenerate the sorption filter. | 01-16-2014 |
20140052361 | METHOD FOR OPERATING A FUEL VAPOR RECIRCULATION SYSTEM IN A MOTOR VEHICLE - A method for operating a fuel vapor recirculation system in a motor vehicle having a fuel tank. In the method, in the operating strategy of the fuel vapor recirculation system, predictive route data of the motor vehicle are taken into account. | 02-20-2014 |
20140109882 | METHOD FOR MONITORING THE LEAK TIGHTNESS OF A FUEL TANK SYSTEM - A method for monitoring the leak tightness of a fuel tank system is provided, the fuel tank system being provided for supplying fuel to a supercharged internal combustion engine. A pressure accumulator is filled from the supercharged intake manifold area of the internal combustion engine. The pressure from the pressure accumulator is transferred to the fuel tank system, which includes in particular the fuel tank and, if necessary, an activated carbon filter. The pressure curve in the closed fuel tank system is observed. A leak in the fuel tank system may be inferred on the basis of the pressure curve, if necessary. | 04-24-2014 |
20140373813 | VENTING A FUEL TANK BY MEANS OF A FUEL SUPPLY PATH AND AN AIR SUPPLY PATH OF AN INTERNAL COMBUSTION ENGINE - The invention relates to a system ( | 12-25-2014 |
Patent application number | Description | Published |
20090207858 | Transmission method and reception method - The invention relates to a transmission method in which at least two Ethernet data frames are combined to form one Ethernet telegram and the Ethernet telegram is transmitted via a communications network. | 08-20-2009 |
20110170434 | Method, electronic component and system for the diagnosis of communication connections - The invention relates to a method and system for diagnosing communication connections in a communication system. The invention enables the provision of a plurality of first diagnosis units and at least one second diagnosis unit, wherein the first and second diagnosis units each are assigned to a communication connection of the communication system and are configured for determining a value of a diagnosis variable of the respectively assigned communication connections, and provides for determining a value of at least one diagnosis variable by each of the first diagnosis units, determining a value of at least one diagnosis variable by the at least one second diagnosis unit, transferring the values determined by the first diagnosis units to an evaluation unit, statistically evaluating the transferred values by the evaluation unit, and diagnosing the values determined by the at least one second diagnosis unit depending on the statistical evaluation by the evaluation unit. | 07-14-2011 |
20110196952 | Method for controlling a network system, network system, and computer program - The invention relates to a method for controlling a network system, the network system including a wireless network to which a client is wirelessly connected, and a backbone network which is connected to the wireless network, having the following steps: | 08-11-2011 |
Patent application number | Description | Published |
20080200726 | Method For the Continuous Production of an Amine - Processes comprising: providing an aromatic alcohol; and reacting the aromatic alcohol with ammonia at a temperature of 80 to 350° C. in the presence of hydrogen and a heterogeneous catalyst to form a crude reaction product comprising a corresponding primary aromatic amine, wherein the heterogeneous catalyst comprises a catalytically active composition which, prior to reduction with hydrogen, comprises 90 to 99.8% by weight of zirconium dioxide (ZrO | 08-21-2008 |
20090030237 | METHOD FOR PRODUCING ETHYLENE AMINES AND ETHANOL AMINES BY THE HYDROGENATING AMINATION OF MONOETHYLENE GLYCOL AND AMMONIA IN THE PRESENCE OF A CATALYST - A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein a catalyst having an active composition comprising ruthenium and cobalt and no further additional metal of group VIII and also no metal of group IB is used in the form of shaped catalyst bodies which in the case of a spherical shape or rod shape in each case have a diameter of <3 mm, in the case of a pellet shape have a height of <3 mm and in the case of all other geometries in each case have an equivalent diameter L=1/a′ of <0.70 mm, where a′ is the external surface area per unit volume (mm | 01-29-2009 |
20090065346 | PROCESS FOR THE DISTILLATIVE SEPARATION OF MIXTURES COMPRISING MONOETHYLENE GLYCOL AND DIETHYLENTRIAMINE - Processes comprising: providing a mixture comprising monoethylene glycol and diethylenetriamine; and subjecting the mixture to extractive distillation with a diethylenetriamine-selective solvent comprising triethylene glycol to provide a first stream comprising monoethylene glycol and a second stream comprising diethylenetriamine; wherein the first stream is substantially free of diethylenetriamine, and wherein the second stream is substantially free of monoethylene glycol. | 03-12-2009 |
20090076306 | PROCESS FOR CONTINUOUS PREPARATION OF A PRIMARY AROMATIC AMINE - A process for continuously preparing a primary aromatic amine by reacting a corresponding cycloaliphatic alcohol with ammonia in the presence of hydrogen at a temperature in the range from 80 to 350° C. in the presence of a heterogeneous catalyst, wherein the catalytically active composition of the catalyst, before its reduction with hydrogen, comprises
| 03-19-2009 |
20090240084 | METHOD FOR PRODUCING ETHYLENE AMINES ETHANOL AMINES FROM MONOETHYLENE GLYCOL (MEG) - A process for preparing ethylene amines and ethanolamines by hydrogenative amination of monoethylene glycol and ammonia in the presence of a catalyst, wherein the process is carried out in two process stages in which | 09-24-2009 |
20110033361 | METHOD FOR REMOVING HALOGEN FROM LIQUID AMMONIA - The present invention relates to a method for depleting halide ions from liquid ammonia, wherein the liquid ammonia is brought into contact with a strongly basic ion exchanger, where the basic structure of the strongly basic ion exchanger is a covalently crosslinked polymer matrix. Furthermore, the present invention relates to the use of an ammonia obtainable according to the invention as starting material in the production of amines. | 02-10-2011 |
20110168542 | DEVICES AND METHOD FOR CONTINUOUS DISTILLATIVE SEPARATION OF A MIXTURE CONTAINING ONE OR MORE ALKANOLAMINE(S) - Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s), wherein the separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)). | 07-14-2011 |
20110180151 | METHOD FOR SAFELY PREVENTING BACKFLOWING IN THE CONVEYING OF A FLUID - A method for reliably avoiding backflow in the transport of a liquid under pressure via a transport pipe ( | 07-28-2011 |
20120157715 | PROCESS FOR PREPARING AN N,N-DIALKY-ETHANOLAMINE HAVING HIGH COLOR STABILITY - A process for preparing an N,N-dialkylethanolamine of the formula I having high color stability | 06-21-2012 |
20120264979 | PROCESS FOR PREPARING N,N-DIMETHYLAMINOETHOXYETHANOL - A process for preparing N,N-dimethylaminoethoxyethanol (DMAEE), wherein
| 10-18-2012 |
20140061020 | DEVICES AND METHOD FOR CONTINUOUS DISTILLATIVE SEPARATION OF A MIXTURE CONTAINING ONE OR MORE ALKANOLAMINE(S) - Apparatus and processes for continuous distillative separation of a mixture comprising one or more alkanolamine(s) are described. The separation is performed in one or more dividing wall column(s) and the alkanolamine or the alkanolamines is/are withdrawn as a side draw stream or side draw streams (side fraction(s)). | 03-06-2014 |
Patent application number | Description | Published |
20130071174 | BALL PIN AND BALL JOINT - A ball joint with a ball pin and a steel ball pin with a joint ball. The ball joint and ball pin are suitable for use when solid-on-solid friction predominates, for example under high static pre-loading or under high operational loads and with small joint movements. At least in a bearing contact area, between the joint ball and the bearing shell, does not include any nitrided layer. The surface of the ball pin has an oxide layer, provided as wear protection, at least in the bearing contact area of the joint ball. The oxide layer in the ball joints, previously regarded (as part of the nitriding treatment) as only improving corrosion protection functions as a form of wear protection. Thus, the mutual exclusion between increasing the fatigue strength (by surface layer hardening) and improving the wear resistance (by nitriding/oxidation) is overcome with such ball pins. | 03-21-2013 |
20130071175 | BALL PIN AND BALL JOINT - A ball joint with a ball pin and a steel ball pin with a joint ball. The ball joint and ball pin are suitable for use when, for example, solid-on-solid friction predominates under high static pre-loading or high operational loads and with small joint movements. A portion of the surface of the ball pin has surface layer hardening in order to increase a fatigue strength of the ball pin. The ball pin and the ball joint, on portion of the ball pin without the any surface layer hardened, includes a nitrided layer as wear protection. The ball pin and the ball joint provide an advantageous combination of high fatigue strength, good corrosion protection and high wear-resistance. The nitrided layer of ball joints, previously only regarded as improving corrosion protection, also functions as a wear protection. Thus, these ball pins overcome the mutual exclusion between surface layer hardening and nitriding. | 03-21-2013 |
Patent application number | Description | Published |
20090003627 | Hearing apparatus with passive input level-dependent noise reduction - A hearing apparatus and in particular a hearing device is to be provided, in which interference noises are to be reduced however as natural an acoustic image as possible is consequently retained. To this end, a hearing apparatus with a first signal processing channel, into which a noise reduction device is integrated and a second signal processing channel, which has the same input as the first signal processing channel and into which no noise reduction device, but instead a level limitation device is integrated, is proposed. An adding device adds the output signals of both signal processing channels to form an overall output signal. A passive input level-dependent noise reduction can thus be realized, with which quiet signals can be heard again despite the noise reduction. | 01-01-2009 |
20090003636 | Method and device for the program selection of a hearing aid - The invention specifies a method and an associated device for selecting at least one program in a hearing aid. By pressing a switching means, for example a push switch, once or a number of times within a defined time period it is possible to switch to one of the programs according to a number of repetitions corresponding to the program. | 01-01-2009 |
20090082801 | Tool for inserting a receiver of a hearing apparatus into an auditory canal - The insertion of an external receiver of a hearing apparatus and in particular a hearing device into an auditory canal of a user is to be facilitated. Provision is made for this purpose for a tool comprising a pair of tweezers with a first and a second tweezer arm, which are affixed to one another at one end. The first tweezer arm has a holding device at its free end by means of which the movements of the receiver to be held are restricted in at least three directions. Furthermore at least one of the two tweezer arms has a stopper that stands substantially perpendicular to the tweezer arm and serves to abut against a concha of the user during insertion of the receiver. In this way the external receiver can not only be grasped well but also inserted into the auditory canal to a defined depth. | 03-26-2009 |
20110103611 | HEARING DEVICE AND METHOD FOR SUPPRESSING FEEDBACK WITH A DIRECTIONAL MICROPHONE - A hearing device and an associated method use an adaptive directional microphone for suppressing feedback. The hearing device includes an adaptation unit which sets the directional microphone so that a sound signal fed back from an earpiece of the hearing device to the directional microphone is attenuated. Acoustic feedback is advantageously attenuated or suppressed simply in an artifact-free manner. | 05-05-2011 |
20110150250 | METHOD AND HEARING DEVICE FOR FEEDBACK RECOGNITION AND SUPPRESSION WITH A DIRECTIONAL MICROPHONE - A method operates a hearing device having at least two omnidirectional microphones emitting microphone signals and a detection unit for defining acoustic feedback. The method includes connecting a first electrical connection of the microphones to one another in order to form a first signal with directional effect, an adjustment of the directional effect of the first signal such that the acoustic feedback in the first signal is maximized, and an analysis of the first signal by the detection unit for defining the acoustic feedback. It is advantageous that the feedback can be detected by a signal with an improved signal-to-noise ratio. Feedbacks are therefore recognized more reliably and more rapidly. | 06-23-2011 |
20110194715 | METHOD FOR COMPENSATING FOR A FEEDBACK SIGNAL, AND HEARING DEVICE - Feedback in a hearing device and, more particularly, in a hearing aid should be compensated for before it becomes audible. To this end, a method is proposed for compensating for a feedback signal in a hearing device with an input-transducer apparatus, a signal-processing apparatus and an output-transducer apparatus, in which method a feedback signal is compensated for, which feedback signal is fed back to the input-transducer apparatus from the output-transducer apparatus or the signal-processing apparatus. More particularly, a probability of having a plurality of notches, equally spaced apart from one another, in the spectrum of an input signal is established, which input signal originates directly from the input-transducer apparatus or which is a difference signal between the signal directly from the input-transducer apparatus and a compensation signal serving for compensation. The compensation is modified or the signal-processing apparatus is amplified as a function of this established probability. | 08-11-2011 |
20110211715 | HEARING DEVICE WITH FEEDBACK-REDUCTION FILTERS OPERATED IN PARALLEL, AND METHOD - A hearing device has a signal-processing apparatus for processing an input signal into an output signal, and a feedback-canceller apparatus for reducing feedback artifacts on the basis of the input signal and the output signal. The feedback-canceller apparatus has an adaptive, first filter, for establishing a set of filter coefficients for a predefined feedback situation. The feedback-canceller apparatus is configured to store the set of filter coefficients. It has at least one second filter, which can be operated directly parallel to the first filter on the basis of the stored set of filter coefficients. The adaptive, first filter can be continuously adapted to a current feedback situation, and the feedback-canceller apparatus is configured such that in the current feedback situation it automatically selects either the first or the second filter. As a result, it generally only requires a simple switchover, but not a complete adaptation. | 09-01-2011 |
20120134505 | METHOD FOR THE OPERATION OF A HEARING DEVICE AND HEARING DEVICE WITH A LENGTHENING OF FRICATIVES - A method operates a hearing device and an associated hearing device has at least one microphone for recording an ambient sound and an earpiece emitting an output sound. A fricative of the ambient sound is reproduced in a temporally lengthened form by the hearing device in the output sound. Speech intelligibility for the hearing-impaired can be improved by the lengthening of fricatives. | 05-31-2012 |
20120250916 | HEARING AID DEVICE WITH A DIRECTIONAL MICROPHONE SYSTEM AND METHOD FOR OPERATING A HEARING AID DEVICE HAVING A DIRECTIONAL MICROPHONE SYSTEM - A hearing aid device has a directional microphone system with a first microphone outputting a first microphone signal and a second microphone outputting a second microphone signal. A delay unit generates a directivity by delaying the second microphone signal or a fourth microphone signal derived therefrom by an internal time delay and associating it with the first microphone signal or a third microphone signal derived therefrom for generating a directional microphone signal. A cross-correlation analysis unit receives the first or the third microphone signal and the second or the fourth microphone signal and determines a value of a cross correlation of the two microphone signals. A control unit adjusting the time delay depending on the value of the cross correlation of the two microphone signals. A classifier determines audio conditions in which the hearing aid device is currently situated, and the time delay is adjusted depending on the audio conditions. | 10-04-2012 |
20120250917 | METHOD FOR IMPROVING THE COMPREHENSIBILITY OF SPEECH WITH A HEARING AID, TOGETHER WITH A HEARING AID - The understanding of speech is to be improved in cases of hearing loss in which certain frequency ranges can no longer be perceived even at high volume or amplification, as applicable. A frequency transposition is performed on an input signal coming into a hearing aid and specific features of an electrical input signal are detected and a transposed signal is filtered as a function of the specific features detected in the electrical input signal. The hearing aid provides appropriate facilities for detecting specific features of the electrical input signal and filtering facilities for filtering the transposed signal. The objective of this is to detect particular properties of the input signal, in particular signal properties which are characteristic of fricatives, which may possibly be lost as a result of the frequency transposition, and at least partially to restore them in the transposed signal. | 10-04-2012 |
20120250918 | METHOD FOR IMPROVING THE COMPREHENSIBILITY OF SPEECH WITH A HEARING AID, TOGETHER WITH A HEARING AID - The understanding of speech is to be improved in cases of hearing loss in which certain frequency ranges can no longer be perceived. A hearing aid has an input transducer for receiving an input signal and converting it into an electrical input signal, a signal processing unit for processing the electrical input signal and effecting frequency-dependent amplification of it, and generates an electrical output signal, and an output transducer for converting the electrical output signal into an acoustic output signal. The hearing aid further has a sound detector device for recognizing sounds in a voice signal coming into the hearing aid, a lookup table, in which a specific output code is assigned in each instance to certain sounds, and a coding device, by which the sounds contained in the electrical input signal are replaced by associated output code in the electrical output signal. | 10-04-2012 |
20120250919 | HEARING AID DEVICE AND METHOD FOR OPERATING A HEARING AID DEVICE - A hearing aid device has an input converter for receiving an input signal and converting the signal into an electrical input signal, a signal processing unit for processing and frequency-dependent amplification of the electrical input signal and generating an electrical output signal, an output converter for converting the electrical output signal into an acoustic output signal, and a sound detector facility for identifying sounds in a signal. Facilities increase an amplification above a normal amplification for a frequency range in which an identified sound contains signal components. Further facilities set the normal amplification of an electrical input signal in dependence on a signal frequency. The amplification is restricted to a maximum amplification in a specific frequency range. The amplification exceeds the normal amplification or the maximum amplification for the duration of the identified sound and at most for a duration which lies below a setting time of a feedback whistling. | 10-04-2012 |
20120275630 | METHOD FOR OPERATING A HEARING DEVICE HAVING REDUCED COMB FILTER PERCEPTION AND HEARING DEVICE HAVING REDUCED COMB FILTER PERCEPTION - A method of operating a hearing device monitors for a head movement of a hearing device wearer. When a head movement is detected, an acoustic signal acquired by a microphone is output in an amplified and phase-modulated manner with a receiver. Furthermore, a hearing device includes a motion sensor and a signal processing unit that is configured to execute the method. | 11-01-2012 |
20130083950 | AMPLIFICATION SETTING IN A HEARING AID DEVICE - A hearing aid retains speech comprehension even during implementation of a frequency transposition. To this end, fricatives existing in an input signal prior to the frequency transposition are identified in particular with the aid of the energy distribution between the individual frequency bands. Following the frequency transposition, amplifier units are controlled in the transposed frequency bands such that a specific energy distribution existing in the non-transposed frequency bands between at least one first upper frequency band and a first lower frequency band is mapped onto a corresponding energy distribution between a second upper frequency band and a second lower frequency band of the frequency-transposed signal. This results in the fricatives obtained in the original input signal also being correctly identified following a frequency transposition. | 04-04-2013 |
20130108094 | METHOD FOR THE OPERATION OF A HEARING DEVICE AND HEARING DEVICE WITH VARIABLE FREQUENCY SHIFT | 05-02-2013 |
20130114837 | FEEDBACK SUPPRESSION DEVICE AND METHOD FOR PERIODIC ADAPTATION OF A FEEDBACK SUPPRESSION DEVICE - A method is provided for adapting a feedback suppression device of a hearing device to a given situation in order to improve the quality of feedback suppression in hearing devices and in hearing aids in particular. In the method an adaptation procedure of the feedback suppression device is periodically activated and adaptation of the feedback suppression device is performed regularly even if a feedback detector does not detect a feedback situation. A feedback suppression device for a hearing device is also provided. | 05-09-2013 |