Abstract: An audio encoder for encoding an audio signal has: a first encoding processor for encoding a first audio signal portion in a frequency domain, having: a time frequency converter for converting the first audio signal portion into a frequency domain representation; an analyzer for analyzing the frequency domain representation to determine first spectral portions to be encoded with a first spectral resolution and second regions to be encoded with a second resolution; and a spectral encoder for encoding the first spectral portions with the first spectral resolution and encoding the second portions with the second resolution; a second encoding processor for encoding a second different audio signal portion in the time domain; a controller for analyzing and determining, which portion of the audio signal is the first audio signal portion encoded in the frequency domain and which portion is the second audio signal portion encoded in the time domain; and an encoded signal former for forming an encoded audio signal havi

Abstract: An audio encoder for encoding an audio signal includes: a first encoding processor for encoding a first audio signal portion in a frequency domain, wherein the first encoding processor includes: a time frequency converter for converting the first audio signal portion into a frequency domain representation having spectral lines up to a maximum frequency of the first audio signal portion; a spectral encoder for encoding the frequency domain representation; a second encoding processor for encoding a second different audio signal portion in the time domain; a cross-processor for calculating, from the encoded spectral representation of the first audio signal portion, initialization data of the second encoding processor, so that the second encoding processing is initialized to encode the second audio signal portion immediately following the first audio signal portion in time in the audio signal; a controller configured for analyzing the audio signal and for determining, which portion of the audio signal is the firs

Abstract: Various embodiments relate to device including a hollow box, having a central rectangular cuboid with a first edge, second edge and a third edge and four faces, where the first, second and third edges are perpendicular and so define the cuboid in three dimensions, two opposed irregular triangular prism-shaped wings with each irregular triangular prism-shaped wing attached to a full first edge and a full second edge, and a fourth edge not touching the central rectangular cuboid.

Abstract: Various embodiments relate to device including a hollow box, having a central rectangular cuboid with a first edge, second edge and a third edge and four faces, where the first, second and third edges are perpendicular and so define the cuboid in three dimensions, two opposed irregular triangular prism-shaped wings with each irregular triangular prism-shaped wing attached to a full first edge and a full second edge, and a fourth edge not touching the central rectangular cuboid.

Abstract: The invention relates to an absorption refrigerating machine and a process for the operation thereof. It can be used as a household cooling appliance, for example as the last link in the cold chain, or for the cooling of medicine or as a refrigerating set of an air-conditioning system, and use in a stand-alone variant without an electrical energy connection is possible. The absorption refrigerating machine has a condenser, an evaporator and an absorber, and a refrigerant-absorbent mixture can be circulated through all three. There is also at least one solar collector for heating to above the refrigerant boiling point and a refrigerant storage unit connected to the condenser. High-pressurized liquid refrigerant is held in the refrigerant storage unit, and an absorbent storage unit and a desorbent storage unit are connected to the absorber.

Abstract: An arrangement for projecting film pictures in which a system of lenses are provided on the side of a window facing the light source. A first mirror in the light beam projected by the lens system, forms an angle with the axis of the light beam. The first mirror is rotated about the axis of the light beam, and a second mirror is located in the light beam deflected by the first mirror, at a first rotated position of the first mirror. The plane of the second mirror forms an angle of substantially 45.degree. with the plane of the first mirror located in the first rotated position. A third mirror is located in a second rotated position of the first mirror in the light beam deflected by the first mirror. The plane of the third mirror forms an angle of substantially 45.degree. with the plane of the first mirror when located in the second rotated position.