公开(公告)号：US20240291531A1

公开(公告)日：2024-08-29

申请号：US18614760

申请日：2024-03-25

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Venkatesh RAMIREDDY ,  Markus LANDMANN ,  Marcus GROßMANN

IPC分类号： H04B7/0456 ,  H04B7/0417 ,  H04B7/06

CPC分类号： H04B7/0478 ,  H04B7/0417 ,  H04B7/0617 ,  H04B7/0634 ,  H04B7/0639

摘要： A receiver processes a radio signal received via a radio channel from a transmitter employing a plurality of antenna ports, determines complex precoder coefficients and delays of one or more space-delay precoders for one or more transmission layers and antenna ports at the transmitter so as to achieve a predefined property for a communication over the radio channel, and feeds back, explicitly or implicitly, delays and the complex precoder. The space-delay precoder has a dual-stage structure having a spatial codebook matrix including spatial beamforming vectors, a frequency-domain codebook matrix, and a combining element per layer for complex scaling or combining one or more of the vectors selected from the spatial and/or frequency-domain codebook matrices. The frequency-domain codebook matrix is defined by a sub-matrix of a DFT matrix, which the sub-matrix of the DFT matrix is associated with a range of delay values.

公开(公告)号：US12075091B2

公开(公告)日：2024-08-27

申请号：US17962391

申请日：2022-10-07

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Jonathan Pfaff ,  Philipp Helle ,  Michael Schaefer ,  Roman Rischke ,  Tobias Hinz ,  Philipp Merkle ,  Bjoern Stallenberger ,  Martin Winken ,  Mischa Siekmann ,  Heiko Schwarz ,  Detlev Marpe ,  Thomas Wiegand

IPC分类号： H04N19/61 ,  H04N19/176 ,  H04N19/184 ,  H04N19/44

CPC分类号： H04N19/61 ,  H04N19/176 ,  H04N19/184 ,  H04N19/44

摘要： Techniques for encoding/decoding of video signals are described, e.g. implemented in decoders, encoder, methods and non-transitory storage units storing instructions to perform the methods.
A decoder or encoder may be configured to predict a predetermined block of the picture using a plurality of neighbouring samples by reducing the plurality of neighbouring samples to obtain a reduced set of samples values lower, in number of samples, than compared to the plurality of neighbouring samples, subjecting the reduced set of sample values to a linear or affine linear transformation to obtain predicted values for predetermined samples of the predetermined block.

公开(公告)号：US12069236B2

公开(公告)日：2024-08-20

申请号：US17763453

申请日：2020-09-23

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

发明人： Yago Sánchez De La Fuente ,  Karsten Sühring ,  Cornelius Hellge ,  Thomas Schierl ,  Robert Skupin ,  Thomas Wiegand

IPC分类号： H04N19/103 ,  H04N19/159 ,  H04N19/30 ,  H04N19/503 ,  H04N19/70

CPC分类号： H04N19/103 ,  H04N19/159 ,  H04N19/30 ,  H04N19/503 ,  H04N19/70

摘要： The present invention is concerned with methods, encoders, decoders and data streams for coding pictures, and in particular a consecutive sequence of pictures, Some embodiments may exploit the so-called Gradual Decoder Refresh—GDR—coding scheme for coding the pictures. Some embodiments may suggest Scalable Coding and Gradual Decoder Refresh improvements.

公开(公告)号：US20240274139A1

公开(公告)日：2024-08-15

申请号：US18644449

申请日：2024-04-24

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Guillaume FUCHS ,  Jürgen HERRE ,  Fabian KÜCH ,  Stefan DÖHLA ,  Markus MULTRUS ,  Oliver THIERGART ,  Oliver WÜBBOLT ,  Florin GHIDO ,  Stefan BAYER ,  Wolfgang JAEGERS

IPC分类号： G10L19/008 ,  G10L19/02 ,  G10L19/032 ,  G10L19/038 ,  G10L19/16 ,  G10L19/26 ,  H03M7/30

CPC分类号： G10L19/008 ,  G10L19/0204 ,  G10L19/032 ,  G10L19/038 ,  G10L19/167 ,  G10L19/26 ,  H03M7/3082 ,  H03M7/6005 ,  H03M7/6011

摘要： An apparatus for encoding directional audio coding parameters comprising diffuseness parameters and direction parameters having a parameter calculator (100) for calculating the diffuseness parameters with a first time or frequency resolution and for calculating the direction parameters with a second time or frequency resolution; and a quantizer and encoder processor (200) for generating a quantized and encoded representation of the diffuseness parameters and the direction parameters.

公开(公告)号：US12061151B2

公开(公告)日：2024-08-13

申请号：US17613234

申请日：2020-05-27

申请人： Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung E.V.

发明人： Ines Frese ,  Michael Maskos

IPC分类号： G01N21/65

CPC分类号： G01N21/65 ,  G01N2201/06113 ,  G01N2201/0633 ,  G01N2201/129

摘要： A method for detecting Raman scattered light using at least one interference filter and a detection unit, the Raman scattered light to be detected including an incoming scattered light signal, wherein the method includes the following steps: * a first filtered scattered light signal is generated by the application of a first transmission function to the incoming scattered light signal, the first transmission function being assigned to a first optical path length L1 through a first interference filter, and the first transmission function defining a first spectral band δλ1; * a second filtered scattered light signal is generated by the application of a second transmission function to the incoming scattered light signal, the second transmission function being assigned to a second optical path length L2≠L1 through the first interference filter or through a second interference filter, and second transmission function defining a second spectral band δλ2; and * the first and the second filtered scattered light signals are detected by the detection unit.

公开(公告)号：US20240259913A1

公开(公告)日：2024-08-01

申请号：US18635882

申请日：2024-04-15

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Thomas HAUSTEIN ,  Thomas WIRTH ,  Jasmina MCMENAMY

IPC分类号： H04W40/24 ,  H04W28/02 ,  H04W40/12

CPC分类号： H04W40/248 ,  H04W28/0289 ,  H04W40/12

摘要： A method for operating a wireless communication network has: using multi connectivity of an IAB node to establish, with the IAB node, a first link for a first path to a network node of the wireless communication network and a second link for a second path to a network node of the wireless communication network; routing a data traffic of the IAB node via the first path; and re-routing at least a part of the data traffic over the second path in case of a past, present or expected change of a link characteristic of a link of a path of the wireless communication network.

公开(公告)号：US20240254316A1

公开(公告)日：2024-08-01

申请号：US18561878

申请日：2022-05-18

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

发明人： Rudolf PFAENDNER ,  Jannik MAYER ,  Elke METZSCH-ZILLIGEN

IPC分类号： C08K5/372 ,  C08J3/22 ,  C08K5/134 ,  C08K5/524 ,  C08L23/12

CPC分类号： C08K5/3725 ,  C08J3/226 ,  C08K5/134 ,  C08K5/524 ,  C08L23/12 ,  C08J2323/12 ,  C08L2201/08 ,  C08L2207/066 ,  C08L2207/20

摘要： The invention relates to the use of at least one sulfur-containing amino acid for stabilizing recycled thermoplastics, in particular against oxidative, thermal, and/or actinic degradation, to a recycled thermoplastic composition containing or consisting of at least one recycled thermoplastic and at least one sulfur-containing amino acid, to a molded part which can be produced from the recycled thermoplastic composition according to the invention, to a stabilizer composition, to a masterbatch, and to a stabilizing method, in particular an oxidative, thermal, and/or actinic stabilizing method for stabilizing recycled thermoplastics by adding or incorporating at least one sulfur-containing amino acid, a stabilizer composition according to the invention, or a masterbatch according to the invention to a recycled thermoplastic.

公开(公告)号：US12039986B2

公开(公告)日：2024-07-16

申请号：US17394068

申请日：2021-08-04

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Adrian Tomasek ,  Ralph Sperschneider ,  Jan Büthe ,  Conrad Benndorf ,  Martin Dietz ,  Markus Schnell ,  Maximilian Schlegel

IPC分类号： G10L19/035 ,  G10L19/022 ,  G10L21/0324 ,  H03M13/07 ,  H03M13/15 ,  H04B17/309 ,  H04L1/00

CPC分类号： G10L19/035 ,  G10L19/022 ,  G10L21/0324 ,  H03M13/07 ,  H03M13/1515 ,  H04B17/309 ,  H04L1/0009 ,  H04L1/0032 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0046 ,  H04L1/0084

摘要： FIG. 1 illustrates a decoder for decoding a current frame to reconstruct an audio signal according to an embodiment. The audio signal is encoded within the current frame. The current frame includes a current bitstream payload. The current bitstream payload includes a plurality of payload bits. The plurality of payload bits encodes a plurality of spectral lines of a spectrum of the audio signal. Each of the payload bits exhibits a position within the current bitstream payload. The decoder includes a decoding module and an output interface. The decoding module is configured to reconstruct the audio signal. The output interface is configured to output the audio signal.

公开(公告)号：US12033647B2

公开(公告)日：2024-07-09

申请号：US17546540

申请日：2021-12-09

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： Jan Büthe ,  Markus Schnell ,  Stefan Döhla ,  Bernhard Grill ,  Martin Dietz

IPC分类号： G10L19/02 ,  G10L19/06 ,  G10L19/22 ,  G10L19/24 ,  G10L19/032

CPC分类号： G10L19/22 ,  G10L19/032

摘要： An audio encoder for encoding audio input data has: a preprocessor for preprocessing the audio input data to obtain audio data to be coded; a coder processor for coding the audio data to be coded; and a controller for controlling the coder processor so that, depending on a first signal characteristic of a first frame of the audio data to be coded, a number of audio data items of the audio data to be coded by the coder processor for the first frame is reduced compared to a second signal characteristic of a second frame, and a first number of information units used for coding the reduced number of audio data items for the first frame is stronger enhanced compared to a second number of information units for the second frame.

公开(公告)号：US12032201B2

公开(公告)日：2024-07-09

申请号：US17616720

申请日：2020-06-04

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  Friedrich-Schiller-Universität Jena

发明人： César Jáuregui Misas ,  Jens Limpert ,  Andreas Tünnermann

IPC分类号： G02B6/02

CPC分类号： G02B6/02042 ,  G02B6/021

摘要： The invention relates to an optical waveguide with two or more light-guiding cores (1a-1e) extending continuously along the longitudinal extension of the optical waveguide, parallel to one another and spaced apart from one another, from one end of the optical waveguide to the other, and with a first cladding (2) enclosing the cores (1a-1e). It is an object of the invention to provide a multicore optical waveguide for high-power operation with reduced system complexity compared to the prior art. This object is achieved by the invention in that the cores (1a-1e) are arranged relative to one another and are spaced apart from one another in such a way that the propagation modes of the light propagating in the optical waveguide at a working wavelength couple to one another, the length of the optical waveguide being selected such that the light coupled into only a single one of the cores (1a-1e) at one end of the optical waveguide first spreads to the other cores (1a-1e) during propagation through the optical waveguide and, after passing through the optical waveguide, leaves the optical waveguide again at the other end from a single core (1a) with at least 60%, preferably at least 75%, of the total light power propagating in the optical waveguide. The invention also relates to a laser system with such an optical waveguide as an optical amplifier, and a method for guiding light in an optical waveguide.