Patent application number | Description | Published |
20100304642 | Gear Cutting Machine - The invention relates to a gear cutting machine for the grinding of external profiles and/or internal profiles of workpieces having at least one machining head which can be rotated about an axis and which has a grinding tool, and having a dressing unit. In accordance with the invention, the dressing unit is supported in the region of the pivot axis of the machining head such that it is pivotable about the common pivot axis together with the machining head and such that it can be moved along the pivot axis toward the grinding tool to be dressed. | 12-02-2010 |
20110288673 | Method for Machining Composite Components - The present disclosure relates to a method for machining composite components in a CNC controlled machining station. In accordance with the present disclosure, a machining tool is guided along a preset tool edge by means of a measuring system, wherein it simultaneously carries out the machining operation, while the CNC control program to control the machining tool is generated in accordance with the measured result. The present disclosure furthermore relates to an apparatus for the carrying out of the method. | 11-24-2011 |
20130101367 | GEAR CUTTING MACHINE, END MILL AND METHOD OF FORM MILLING - The present disclosure relates to a gear cutting machine for gear cutting a workpiece, in particular a toothed wheel, by form milling having at least one cutter head for mounting at least one end mill, wherein the cutter head or the end mill and/or the workpiece mount are adjustable and the end mill axis can be aligned approximately parallel to the machined tooth flank of the clamped workpiece, and wherein the cutter axis can be applied to the flank contour and the end mill has an outer contour corresponding to the flank contour. | 04-25-2013 |
20140017048 | Apparatus for the automated removal of workpieces arranged in a container - An apparatus for the automated removal of workpieces arranged in a container comprising a first object recognition device for detecting the workpieces and a first gripper for picking and removing the workpieces from the container; and a control for evaluating the data of the first object recognition device, for track planning and for controlling the first gripper; wherein an intermediate station on which the first gripper places the workpiece after the removal from the container; and a positioning apparatus which positions the workpieces more accurately starting from the intermediate station and/or singularizes them. | 01-16-2014 |
20140025197 | Apparatus for the automated Handling of workpieces - An apparatus for the automated handling of workpieces comprising an object recognition device for detecting the workpiece and a gripper arranged at a gripping arm for picking the workpieces and a control for evaluating the data of the object recognition device, for track planning and for controlling the gripping arm and the gripper and comprising a compensation unit which allows an evasion movement of the gripper, wherein the compensation unit only allows an evasion movement of the gripper on the exceeding of a predefined first load of the gripping arm and remains rigid below the first load, wherein the first load is larger than a load exerted on the gripping arm solely by the gripper and/or the picked workpiece. | 01-23-2014 |
20140025198 | Apparatus for the automated detection and removal of workpieces - An apparatus for the automated detection and removal of workpieces comprising an object recognition device for detecting the workpieces and a gripper for picking the workpieces; and a gripper for picking the workpieces; and a control for evaluating the data of the object recognition device, for track planning and for controlling the gripper, wherein the object recognition device is arranged at a travel arrangement by which it can be traveled from a position of rest into at least one measuring position and back. | 01-23-2014 |
20140052297 | Apparatus for Automated Removal of Workpieces Arranged in a Container - A device for automated removal of workpieces arranged in a container has a detector device, for the purpose of detecting the workpiece, and a picker, which can be moved via a robot arm having at least six axes, for picking and removing the workpieces from the container. The device also has controller for evaluating the data of the detector device, for path planning, and for controlling the robot arm and the picker. The robot arm has a picker arm element, with at least two further axes of movement, for moving the picker. | 02-20-2014 |
20140154036 | Apparatus for the automated handling of workpieces - An apparatus for the automated handling of workpieces comprising at least one gripper for picking the workpiece; a control for controlling the at least one gripper and an intermediate station for placing the workpiece, with the apparatus being configured such that the workpiece is placed in a defined position and/or defined orientation on the intermediate station and is picked up again with a changed orientation and/or with greater accuracy. | 06-05-2014 |
Patent application number | Description | Published |
20090326959 | GENERATION OF DECORRELATED SIGNALS - In a case of transient audio input signals, in a multi-channel audio reconstruction, uncorrelated output signals are generated from an audio input signal in that the audio input signal is mixed with a representation of the audio input signal delayed by a delay time such that, in a first time interval, a first output signal corresponds to the audio input signal, and a second output signal corresponds to the delayed representation of the audio input signal, wherein, in a second time interval, the first output signal corresponds to the delayed representation of the audio input signal, and the second output signal corresponds to the audio input signal. | 12-31-2009 |
20110264456 | BINAURAL RENDERING OF A MULTI-CHANNEL AUDIO SIGNAL - Binaural rendering a multi-channel audio signal into a binaural output signal is described. The multi-channel audio signal has a stereo downmix signal into which a plurality of audio signals are downmixed, and side information having a downmix information, as well as object level information of the plurality of audio signals and inter-object cross correlation information. Based on a first rendering prescription, a preliminary binaural signal is computed from the first and second channels of the stereo downmix signal. A decorrelated signal is generated as an perceptual equivalent to a mono downmix of the first and second channels of the stereo downmix signal being, however, decorrelated to the mono downmix. Depending on a second rendering prescription, a corrective binaural signal is computed from the decorrelated signal and the preliminary binaural signal is mixed with the corrective binaural signal to obtain the binaural output signal. | 10-27-2011 |
Patent application number | Description | Published |
20110211702 | Signal Generation for Binaural Signals - A device for generating a binaural signal based on a multi-channel signal representing a plurality of channels and intended for reproduction by a speaker configuration having a virtual sound source position associated to each channel, is described. It includes a correlation reducer for differently processing, and thereby reducing a correlation between, at least one of a left and a right channel of the plurality of channels, a front and a rear channel of the plurality of channels, and a center and a non-center channel of the plurality of channels, in order to obtain an inter-similarity reduced set of channels; a plurality of directional filters, a first mixer for mixing outputs of the directional filters modeling the acoustic transmission to the first ear canal of the listener, and a second mixer for mixing outputs of the directional filters modeling the acoustic transmission to the second ear canal of the listener. According to another aspect, a center level reduction for forming the downmix for a room processor is performed. According to even another aspect, an inter-similarity decreasing set of head-related transfer functions is formed. | 09-01-2011 |
20120328115 | SYSTEM FOR COMBINING LOUDNESS MEASUREMENTS IN A SINGLE PLAYBACK MODE - The present document relates to processing of multimedia data, notably the encoding, the transmission, the decoding and the rendering of multimedia data, e.g. audio files or bitstreams. In particular, the present document relates to the implementation of loudness control in multimedia players. A method for providing loudness related data to a media player is described. The method comprises the steps of providing a first loudness related value associated with an audio signal; wherein the first loudness related value has been determined according to a first procedure; of converting the first loudness related value into a second loudness related value using a reversible relation; wherein the second loudness related value is associated with a second procedure for determining loudness related values; of storing the second loudness related value in metadata associated with the audio signal; and of providing the metadata to the media player. | 12-27-2012 |
20150043754 | System and Method for Non-Destructively Normalizing Loudness of Audio Signals within Portable Devices - Many portable playback devices cannot decode and playback encoded audio content having wide bandwidth and wide dynamic range with consistent loudness and intelligibility unless the encoded audio content has been prepared specially for these devices. This problem can be overcome by including with the encoded content some metadata that specifies a suitable dynamic range compression profile by either absolute values or differential values relative to another known compression profile. A playback device may also adaptively apply gain and limiting to the playback audio Implementations in encoders, in transcoders and in decoders are disclosed. | 02-12-2015 |
20150049880 | Low Delay Real-to-Complex Conversion in Overlapping Filter Banks for Partially Complex Processing - An arrangement of overlapping filter banks comprises a synthesis stage and an analysis stage. The synthesis stage receives a first signal segmented into time blocks and outputs, based thereon, an intermediate signal to be received by the analysis stage forming the basis for the computation of a second signal segmented into time frames. In an embodiment, the synthesis stage is operable to release an approximate value of the intermediate signal in a time block located L−1 time blocks ahead of its output block, which approximate value is computed on the basis of any available time blocks of the first signal, so that the approximate value contributes, in the analysis stage, to the second signal. The delay is typically reduced by L−1 blocks. Applications include audio signal processing in general and real-to-complex conversion in particular. | 02-19-2015 |
Patent application number | Description | Published |
20140039890 | EFFICIENT CONTENT CLASSIFICATION AND LOUDNESS ESTIMATION - The present document relates to methods and systems for encoding an audio signal. The method comprises determining a spectral representation of the audio signal. The determining a spectral representation step may comprise determining modified discrete cosine transform, MDCT, coefficients, or a Quadrature Mirror Filter, QMF, filter bank representation of the audio signal. The method further comprises encoding the audio signal using the determined spectral representation; and classifying parts of the audio signal to be speech or non-speech based on the determined spectral representation. Finally, a loudness measure for the audio signal based on the speech parts is determined. | 02-06-2014 |
20140072120 | METHOD AND ENCODER FOR PROCESSING A DIGITAL STEREO AUDIO SIGNAL - The invention discloses a method and an encoder for processing a digital audio stereo signal. A digital audio encoder for coding such audio signal comprises a predictive Temporal Noise Shaping (TNS) filter, a Mid-/Side (M/S) coding unit, a control unit for determining a first prediction gain related to the unmodified L/R signal processed by the TNS filter and for determining a second prediction gain related to the M/S-coded L/R signal processed by the TNS filter, wherein the control unit is adapted to disable TNS-filtering—i.e. to bypass the TNS filter—for a current signal frame, if the first and second prediction gains differ by more than a pre-determined mismatch range. Preferably, the first and second prediction gains are determined from signal energy ratios calculated for each channel of the stereo signal including the signal energies of both the TNS-processed (unmodified) L- respectively (unmodified) R-signal and the TNS-processed M/S coded L- respectively M/S coded R-signal divided by the respective signal energies before TNS processing. Furthermore, the control unit is preferably adapted to overrule the disabling of the TNS filter, if the input signal is a near-mono audio signal exhibiting only low energy either in its M- or S-band. In that case, operation of the TNS filter on the stereo audio signal is maintained. | 03-13-2014 |
20140088978 | FORENSIC DETECTION OF PARAMETRIC AUDIO CODING SCHEMES - The present document relates to audio forensics, notably the blind detection of traces of parametric audio encoding/decoding. In particular, the present document relates to the detection of parametric frequency extension audio coding, such as spectral band replication (SBR) or spectral extension (SPX), from uncompressed waveforms such as PCM (pulse code modulation) encoded waveforms. A method for detecting frequency extension coding history in a time domain audio signal is described. The method may comprise transforming the time domain audio signal into a frequency domain, thereby generating a plurality of subband signals in a corresponding plurality of subbands comprising low and high frequency subbands; determining a degree of relationship between subband signals in the low frequency subbands and subband signals in the high frequency subbands; wherein the degree of relationship is determined based on the plurality of subband signals; and determining frequency extension coding history if the degree of relationship is greater than a relationship threshold. | 03-27-2014 |
Patent application number | Description | Published |
20090189420 | Electric Auxiliary Heating Unit for a Motor Vehicle - An electric auxiliary heating unit reliably avoids temperature overshoots of the heated air. To this end, the temperature of the air flowing into the heating is determined and converted into a heating power for controlling the heating elements. This is preferably done via a stored characteristic field via which a plurality of vehicle parameters, such as the vehicle speed, the opening condition of the convertible top, etc., can be taken into account. Also the temperature of the incoming air can be derived from temperature values which are already available in the vehicle. A user-friendly electric heating can be realized very easily in this way. Temperature fluctuations in the heated air can be avoided reliably and easily even in the case of dynamically varying operating conditions of the motor vehicle. | 07-30-2009 |
20090192671 | Electric Auxiliary Heating Unit for a Motor Vehicle - An electric auxiliary heating unit for a motor vehicle reliably avoids temperature overshoots of the heated air, especially during acceleration phases of the vehicle. The temperature of adjustment the discharged hot air is adjusted in dependence upon the vehicle speed. This is preferably done via a stored characteristic field via which a plurality of vehicle parameters, such as the vehicle speed, the opening condition of the convertible top, the outside temperature, etc., can easily be taken into account. The temperature of the incoming air can also be derived from temperature values which are already available in the vehicle. This heating can preferably be used locally in the vehicle, e.g. in the vehicle seat or in the rear of the passenger compartment. Temperature fluctuations in the heated air can be avoided reliably and easily even in the case of dynamically varying operating conditions of the motor vehicle. | 07-30-2009 |
20120228278 | ELECTRICAL AUXILIARY HEATING UNIT FOR A MOTOR VEHICLE - An electric auxiliary heating unit reliably avoids temperature overshoots of the heated air. To this end, the temperature of the air flowing into the heating is determined and converted into a heating power for controlling the heating elements. This is preferably done via a stored characteristic field via which a plurality of vehicle parameters, such as the vehicle speed, the opening condition of the convertible top, etc., can be taken into account. Also, the temperature of the incoming air can be derived from temperature values which are already available in the vehicle. A user-friendly electric heating can be realized very easily in this way. Temperature fluctuations in the heated air can be avoided reliably and easily even in the case of dynamically varying operating conditions of the motor vehicle. | 09-13-2012 |