Abstract: A method of generating an audio output signal according to a downward compatible sound format, the method including: generating a sum signal by combining a first input channel signal with a second input channel signal; and dynamically correcting the sum signal using samples of the first and second input channel signals from overlapping time windows.

Abstract: An interpolation circuit for interpolating a first and a second microphone signal and for generating an interpolated microphone signal includes a first input (100) for receiving the first microphone signal (am), a second input (101) for receiving the second microphone signal (am+1), an output (102) for outputting the interpolated microphone signal (s), a control input (103) for receiving a control signal (r), and a first circuit branch (104) including first (105) and second (106) inputs coupled to the first (100) and the second (101) input, respectively, of the interpolation circuit, and an output (107) coupled to the output (102) of the interpolation circuit, wherein the first circuit branch is provided with a means (108) for power-specific summing of the signals supplied to the first and second inputs of the first circuit branch and for outputting a power-specific summation signal at the output (107) of the first circuit branch (104).

Abstract: Recent production methods for 3D video as a general rule generate stereo images in a same phase of movement. The left and right images of a stereo pair thus image the recorded (or rendered) scene at a same point of time. Correct reproduction consequently requires the two images to be shown concurrently. This is, however, not true for all apparatuses such as, for example, 3D television sets including the so-called shutter technology, which show the left and right images in temporal succession. This temporally offset reproduction of the two stereo images results in clearly perceivable image errors. The invention describes a method for compensating such image errors. This is achieved by interpolating the images of one of the channels.

Abstract: Some 3D video display apparatuses reproduce the two stereo channels in a temporally offset manner, which may bring about the occurrence of interfering image errors. Appropriate dispositions allow to compensate such image errors entirely or in part. In the reproduction of 3D video it is not definitely possible to recognize whether, and in what form, such dispositions are being employed in a display apparatus. The invention discloses a test signal generator and a test signal which allow to examine the error compensation dispositions being employed.

Abstract: An apparatus (1) for switching real-time media streams of one or multiple sources (Q1, Q2, Q3) to one or multiple sinks (S1, S2, S3) includes one or multiple source ports (QA1, QA2, QA3) for connecting of the one or multiple sources (Q1, Q2, Q3) as well as one or multiple sink ports (SA1, SA2, SA3) for connecting of the one or multiple sinks (S1, S2, S3). The apparatus (1) is adapted to provide a switching sink (SS) and to switch it to a real-time media stream of a first source (Q1). The switching sink (SS) is adapted to receive the real-time media stream of the first source (Q1) in a packet-switched format and to forward the received real-time media stream in a packet-switched format, wherein the packets are provided with a first multi-point destination address (IPMZS) allocated to the switching sink (SS) during forwarding in order to allow for a connecting of the one or multiple sinks (S2) with the real-time media stream of the first source (Q1) forwarded by the switching sink (SS).

Abstract: A digital switching signal sequence is realized as a previously digitized, high-pass filtered white noise signal of a predetermined length T, with a high-pass cut-off frequency which lies above the frequency where the loudness threshold characteristic in silence of the human hearing has its highest sensitivity, if possible. The switching signal sequence is employed for switching purposes (206), e.g., for switching between two information signals (201, 207).

Abstract: A method and a system for decoding a stereoscopic video signal of the type including a sequence of composite frames each including a left image for the left eye and a right image for the right eye are disclosed. The method provides for detecting one or more edges inside at least one of the composite frames; determining a stereoscopic format of the video signal based on the edge detection; and extracting the right image and the left image based on the determined stereoscopic format.

Abstract: In order to achieve an improved audio presentation of sounds, in particular sports specific sounds, at reduced technical effort during any video recording, it is suggested to capture sensor-based and analyze image contents of video images. From the information obtained hereby, fitting sound events (audio samples) are selected according to predefined criteria from an audio database. The selected sound events are automatically added to the components of a video accompanying sound.

Abstract: A method for distributing broadcast signals to an indoor environment, includes the steps of receiving (1000) the broadcast signals (7); transforming (1002) the received broadcast signals (7) into electric signals by use of a Power Line Communication device (8); transmitting (1004) the electric signals over power lines (80), wherein the electric signals are modulated, and configured to be irradiated (1006) as aerial signals (82) in the surrounding space of the power lines (80) of the indoor environment, and wherein the irradiated aerial signals (82) are adapted to be received (1008) with a receiver (31, 32, 33, 41, 42, 43, 51, 61, 62, 63), and the receiver (31, 32, 33, 41, 42, 43, 51, 61, 62, 63) is adapted to demodulate the received irradiated aerial signals (82). Corresponding systems, Power Line Communication devices and methods carried out by the device are also provided.

Abstract: A method for data packets transmission includes a first group of data packets transmitted with a first bitrate, this first group including a first payload. Quality of transmission of the first group of data packets is checked and, if it is above a first threshold, a second group of data packets is transmitted with a second bitrate higher than the first bitrate. The second group of data packets includes a payload, and additional control data (C1) allowing a receiver to check consistency of the delivered payload.

Abstract: A wind turbine includes at least one blade (5a) and apparatus for converting movement of the at least one blade (5a) in electric energy. The wind turbine also includes at least one antenna (6a) included in the at least one blade (5a), and a transmitter circuit (70) for feeding the antenna (6a) with a signal (71) to be radiated.

Abstract: For automatising the translation of spoken language into sign language and manage without human interpreter services, a system is proposed, which includes the following features: a database (1), in which text data of words and syntax of the spoken language as well as sequences of video data with the corresponding meanings in the sign language are stored, and a computer (20), which communicates with a database (10) in order to translate fed text data of a spoken language into corresponding video sequences of the sign language, wherein, further, video sequences of initial hand states for definition of transition positions between individual grammatical structures of the sign language are stored in the database (10) as metadata, which are inserted by the computer (20) between the video sequences of the grammatical structures of the sign language during the translation.

Abstract: In order to reduce the disturbing background noises that may arise during the summation with weighting of the spectral coefficients using a correction factor in a downmix method, the proposition is made that the correction factors m(k) are computed as follows: eA(k)=Real(A(k))Real(A(k))+Imag(A(k))·Imag(A(k)) eB(k)=Real(B(k))·Real(B(k))+Imag(B(k))·Imag(B(k)) x(k)=Real(A(k))·Real(B(k))+Imag(A(k))·Imag(B(k)) w(k)=D·x(k)/(eA(k)+L·eB(k)) m(k)=(w(k)2+1)(1/2)?w(k) wherein m is the kth correction factor; and A(k) is the kth spectral value of the signal to be prioritized; and B(k) is the kth spectral value of the signal not to be prioritized; and D is the degree of compensation; and L is the degree of the limitation of the compensation.

Abstract: For the remote control of terminal units of consumer electronics and of computers by way of a remote control with integrated motion sensors, it is suggested to process the detected motion sequences in the remote control itself and interpret them as gestures to the effect that certain gestures correspond to certain commands which are transmitted from the remote control directly to the corresponding terminal unit or to a computer. (FIG.

Abstract: To allow for a larger selection of viewpoints for the viewer during the reproduction of 3D image contents, it is proposed to compute the two stereoscopic images from the image signals of recording cameras (101, 102, 103), which record images of an object (1) to be reproduced from different viewpoints of a monoscopic position. The stereoscopic images are computed with an image viewpoint, which correspond to the viewing angle of a hypothetical viewer (400) in the central axis of the monitor screen (304). A change of the actual viewing position with regard to the central axis is signalized to a processing unit (301), which computes the two stereoscopic images with image viewpoints changed accordingly.

Abstract: In order to compensate tonal changes arising from a multi-path propagation of sound portions during the mixing of multi microphone audio recordings as far as possible it is suggested to form spectral values of respectively overlapping time frames of samples of each a first microphone signal (100) and a second microphone signal (101). The spectral values (300) of the first microphone signal (100) are distributed with formation of spectral values (311) of a first sum signal to the spectral values (301) of a second microphone signal (101) in a first summing level (310), whereat a dynamic correction of the spectral values (300, 301) of one of the two microphone signals (100, 101) occurs. Spectral values (399) of a result signal are formed out of the spectral values (311) of the first sum signal which are subject to an inverse Fourier-transformation and a block junction (FIG. 3).

Abstract: In a peer-to-peer (P2P) system, in each individual transmitting peer (10), the incoming data stream is divided logically and with regard to time into different parts, which are buffered in a volatile memory (13) and are transmitted to the receiving peers (20, 30) on different paths by means of a peer-to-peer transmission mechanism (40). In a receiving peer (20), the received parts of the subdivided data stream are buffered in a volatile memory (21) and are reassembled into a complete data stream. Further, in the receiving peer (20), the parts of the subdivided data stream, buffered by the volatile memory (21), are copied into a persistent memory (22), from where they are copied back into the volatile memory (21) at a later point in time if necessary. In order to reduce the amount of data to be stored persistently, it is proposed that a fraction of the received data is excluded from persistent storing, wherein this exclusion is performed by selecting parts of the subdivided data stream.

Abstract: A method of generating an audio output signal according to a downward compatible sound format, the method including: generating a sum signal by combining a first input channel signal with a second input channel signal; and dynamically correcting the sum signal using samples of the first and second input channel signals from overlapping time windows.

Abstract: In order to reduce the multitude of data for transmitting and converting use authorizations, which are received either encoded or non-encoded together with sound and/or picture contents in signals from optional networks, it is proposed to reduce the hierarchically structured use authorization information in the form of a tree structure before transmitting it further, such that non-occupied tree branches are detected and marked as not relevant, wherein the tree branches marked as not relevant are not included during the further transmitting of the use authorization information.

Abstract: The aim of the invention is to indicate the availability of an update for an MHP application, which is modified only periodically, to the user of a set top box, whilst helping him or her to decide whether the modified update is actually required and optionally still maintaining the availability of the older update without restrictions. To achieve this, information concerning the scope and/or type of modification in relation to the older version is provided in the transmitted version number for the modified MHP application. The set top box starts the saved older version if special information exists (“launchable with older version” flag) and permits a comparison of the version number with the received version number of the modified MHP application as to whether the modifications of the modified MHP application are of such significance that the modified version must be received and saved in the cache memory.