公开(公告)号：EP0649588A1

公开(公告)日：1995-04-26

申请号：EP93914687.0

申请日：1993-06-22

申请人： Institut für Rundfunktechnik GmbH

发明人： SEDLMEYER, Robert

IPC分类号： H04B1 ,  H04H20 ,  H04S3

CPC分类号： H04H20/88 ,  H04B1/665 ,  H04S3/00

摘要： In order to require only a relatively small increase in data rate when the number of channels of multi-channel digitalised and bit rate reduced audio signals is increased, the psychoacoustic concealment by at least part of the remaining audio channels or the redundancy of individual audio channels is taken advantage of in each individual audio channel when reducing the bit rate of audio signals having more than two audio channels. Only those parts of the concerned audio channel are transmitted or stored which are not concealed by the audio signals of other audio channels or which are contained in the audio channels for stereophonic reproduction with all types of reproduction available for selection. In addition, the used parts are transmitted or stored with a resolution only big enough for the totality of all audio channels to keep concealed the quantization noise generated during quantization in all types of reproduction available for selection.

公开(公告)号：EP1905235A1

公开(公告)日：2008-04-02

申请号：EP06723851.9

申请日：2006-03-30

申请人： Institut für Rundfunktechnik GmbH

发明人： SEDLMEYER, Robert

IPC分类号： H04N5/913

CPC分类号： H04N9/79 ,  H04N5/913 ,  H04N21/4408 ,  H04N2005/91364

摘要： The aim of the invention is to satisfy the demand of public radio and free-to-air programs in relation to non-coded processing and/or reproduction and/or storage of freely accessible contents for the final user in a uniform system in order to transfer and capture coded or non-coded sound and/or image contents. As a result, a special instruction (3) adapts user authorisation information (2) which contains the reception signal. The instruction (3) signalises at reception that the end user should dispose the sound and/or image content in a non-coded manner. User authorisation information (2) is still added even with optionally, cascaded, coded transfer of sound and image content or is logically linked by suitable measurements when they are simultaneously transferred in a physically separated manner from the image and/or sound content. The special instruction (3) triggers a decoding of the image and/or sound content at least at the end of the retransferring cascade during the processing and/or reproduction and/or storage of the image and/or sound content which is further transferred in the coded form.

公开(公告)号：EP0595944B1

公开(公告)日：1994-12-14

申请号：EP92916030.7

申请日：1992-07-21

申请人： Institut für Rundfunktechnik GmbH

发明人： SEDLMEYER, Robert ,  BREFORT, Andreas ,  GROH, Jens ,  KRAFFT, Wolfgang ,  ROSINSKI, Klaus ,  WIESE, Detlef ,  STOLL, Gerhard ,  LINK, Martin

IPC分类号： H04B1/66

CPC分类号： H04B1/665

摘要： In oder to find the overall monitoring threshold (6) during a bit-rate-reducing source coding of digitised audio signals (1), a requantization and coding regulation for the time or spectral scanning values (2) of the audio signal is found from the masking effect of all relevant maskers and noise maskers (100, 200, 300) and from the steady audio threshold (400). To this end the masking sides (101, 102, 201, 202, 301, 302) of the selected maskers are segmented and approximated in the individual segments by low-order polynomials, whereby the coefficients of the low-order polynomials are found. The intensities of the maskers converted into a logarithmic level are used to find the coefficients of the low-order polynomials. The overall monitoring threshold (6) is found at individual or eventually selected support points in steps, masker by masker, from the polynomials describing the masking sides of the eventually selected maskers.

公开(公告)号：EP2433413A1

公开(公告)日：2012-03-28

申请号：EP10726010.1

申请日：2010-05-18

申请人： Institut für Rundfunktechnik GmbH

发明人： GROH, Jens ,  HAMMER, Matthias ,  ERK, Alexander ,  MERKEL, Klaus ,  KILGER, Sebastian ,  GÜLBAHAR, Mark ,  SEDLMEYER, Robert

IPC分类号： H04L29/08 ,  G06F12/14

CPC分类号： H04L67/104 ,  H04L67/108

摘要： The invention relates to a peer-to-peer (P2P) system, wherein in each transmitting peer (10) the incoming data stream is divided logically or chronologically 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. Furthermore, in the received peer (20), the parts of the subdivided data stream buffered by the volatile memory (21) are copied to a persistent memory (22), from which said parts are copied back to the volatile memory (21) at a later time if necessary. In order to reduce the extent of the data to be stored persistently, it is proposed that a portion of the received data be excluded from the persistent storage, wherein said exclusion occurs by selecting parts of the subdivided data stream. For this purpose, the selection can preferably be made in the transmitting peer (10), where the selected portion is separated from the remaining data of the subdivided data and is diverted to a secondary transmission mechanism (50). Alternatively, the selection can be made in the receiving peer (20), where the selected portion is separated from the received data buffered there and is deleted.

公开(公告)号：EP0595944A1

公开(公告)日：1994-05-11

申请号：EP92916030.0

申请日：1992-07-21

申请人： Institut für Rundfunktechnik GmbH

发明人： SEDLMEYER, Robert ,  BREFORT, Andreas ,  GROH, Jens ,  KRAFFT, Wolfgang ,  ROSINSKI, Klaus ,  WIESE, Detlef ,  STOLL, Gerhard ,  LINK, Martin

IPC分类号： H03H17 ,  H04B1 ,  H04B14

CPC分类号： H04B1/665

摘要： Afin de déterminer le seuil global d'écoute (6) lors d'un codage à la source de signaux audio numérisés (1) qui en réduit le débit binaire, une prescription de requantification et de codage des valeurs temporelles ou spectrales de balayage (2) du signal audio est déduite de l'effet de masque de tous les masqueurs et masqueurs de bruit concernés (100, 200, 300), ainsi que du seuil d'écoute permanent (400). A cet effet, les flancs de masquage (101, 102, 201, 202, ,301, 302) des masqueurs, le cas échéant sélectionnés, sont segmentés et une approximation est calculée dans les segments individuels au moyen de polymômes d'ordre inférieur, les coefficients des polynômes d'ordre inférieur étant calculés. Pour le calcul des coefficients des polynômes d'ordre inférieur, les intensités des circuits de masquage converties en niveaux logarithmiques sont utilisées. Le seuil global d'écoute (6) est déterminé par étapes, c'est-à-dire pour chaque marqueur l'un après l'autre, à des points d'appui individuels, le cas échéant sélectionnés, à partir des polynômes décrivant les flancs des masqueurs éventuellement sélectionnés.

摘要翻译： 为了在编码降低其比特率的数字化音频信号源（1）的编码时确定总体监听阈值（6），对时间或频谱扫描值（2）进行再量化和编码的要求， ）所述音频信号是从所有有关掩蔽器和噪声屏蔽器（100，200，300）和所述永久听力阈值（400）的掩蔽效应的。 为此目的，如果适当选择，掩模的掩模侧面（101,102,201,202,301,302）被分段并且通过较低阶聚合物在各个分段中计算近似值。 计算低阶多项式的系数。 为了计算低阶多项式的系数，使用转换为对数电平的掩蔽电路的强度。 总体监听阈值（6）分阶段地确定，也就是说对于每个标记一个接一个地确定，在适当选择的各个支持点处，从多项式描述 可能选择的面具的侧面。

公开(公告)号：EP2433413B1

公开(公告)日：2016-09-28

申请号：EP10726010.1

申请日：2010-05-18

申请人： Institut für Rundfunktechnik GmbH

发明人： GROH, Jens ,  HAMMER, Matthias ,  ERK, Alexander ,  MERKEL, Klaus ,  KILGER, Sebastian ,  GÜLBAHAR, Mark ,  SEDLMEYER, Robert

IPC分类号： H04L29/08 ,  G06F12/14

CPC分类号： H04L67/104 ,  H04L67/108

公开(公告)号：EP0740865B1

公开(公告)日：2000-10-18

申请号：EP95906244.9

申请日：1995-01-16

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. ,  Institut für Rundfunktechnik GmbH

发明人： GERHÄUSER, Heinz ,  SEITZER, Dieter ,  PLENGE, Georg ,  SEDLMEYER, Robert

IPC分类号： H04H1/00

CPC分类号： H04H60/50 ,  H03J1/0058 ,  H04H20/16 ,  H04H20/22 ,  H04H20/28 ,  H04H20/67 ,  H04H60/51 ,  H04H60/64 ,  H04H60/65

摘要： The invention describes a process for finding the receivability of radio signals in a radio system and a receiver for performing the steps required on the reception side. The invention is particularly significant for a radio system, especially a synchronised broadcasting system, as in the reception of radio transmitters in mobile recievers, e.g. in a motor vehicle, the user wants to be able to receive the desired programme at the actual point of reception quickly and reliably. With prior art systems, like the radio data signal, this is possible only to a very limited degree, for instance with traffic news. The invention makes it possible, however, to discover which programmes and/or parts thereof can be received at any point, at least for small partial areas of a zone equipped with radio transmitters, and display them for user's individual selection. This gives the user the advantage of being able to see the receivable programmes and to receive the selected programme rapidly. The invention eliminates time-consuming seeking of a desired programme.

公开(公告)号：EP0649588B1

公开(公告)日：1997-01-02

申请号：EP93914687.4

申请日：1993-06-22

申请人： Institut für Rundfunktechnik GmbH

发明人： SEDLMEYER, Robert

IPC分类号： H04S3/00 ,  H04H5/00 ,  H04B1/66

CPC分类号： H04H20/88 ,  H04B1/665 ,  H04S3/00

摘要： In order to require only a relatively small increase in data rate when the number of channels of multi-channel digitalised and bit rate reduced audio signals is increased, the psychoacoustic concealment by at least part of the remaining audio channels or the redundancy of individual audio channels is taken advantage of in each individual audio channel when reducing the bit rate of audio signals having more than two audio channels. Only those parts of the concerned audio channel are transmitted or stored which are not concealed by the audio signals of other audio channels or which are contained in the audio channels for stereophonic reproduction with all types of reproduction available for selection. In addition, the used parts are transmitted or stored with a resolution only big enough for the totality of all audio channels to keep concealed the quantization noise generated during quantization in all types of reproduction available for selection.

公开(公告)号：EP1915867A1

公开(公告)日：2008-04-30

申请号：EP06723852.7

申请日：2006-03-30

申请人： Institut für Rundfunktechnik GmbH

发明人： SEDLMEYER, Robert

IPC分类号： H04N7/24 ,  H04N7/16

CPC分类号： H04N21/8355 ,  H04N21/2541 ,  H04N21/43615 ,  H04N21/4627

摘要： The invention is characterised in that prior to forwarding the user authorisation information which is constructed in a hierarchical manner according to the tree structure and which to be reduced, the non-allocated constructional masts are recognised and are marked as non-relevant, in order to reduce the amount of data for the transfer and conversion of user authorisation information, which can be captured in a coded or non-coded manner together with sound and/or image contents in signals from any particular transfer network. The user authorisation information is not transferred as non-relevant marked constructional masts during the forwarding of user authorisation information.

摘要翻译： 为了减少用于发送和转换使用授权的数据的大量数据，这些使用授权在来自可选网络的信号中被接收为编码的或未编码的声音和/或图像内容，因此建议减少分层结构化的使用授权信息 在进一步发送之前，树结构的形式，使得未占用的树枝被检测并被标记为不相关，其中标记为不相关的树分支在进一步发送使用授权信息期间不被包括。

公开(公告)号：EP0740865A1

公开(公告)日：1996-11-06

申请号：EP95906244.0

申请日：1995-01-16

申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. ,  Institut für Rundfunktechnik GmbH

发明人： GERHÄUSER, Heinz ,  SEITZER, Dieter ,  PLENGE, Georg ,  SEDLMEYER, Robert

IPC分类号： H04H3 ,  H03J1 ,  H04B1 ,  H04H60 ,  H04H20

CPC分类号： H04H60/50 ,  H03J1/0058 ,  H04H20/16 ,  H04H20/22 ,  H04H20/28 ,  H04H20/67 ,  H04H60/51 ,  H04H60/64 ,  H04H60/65

摘要： The invention describes a process for finding the receivability of radio signals in a radio system and a receiver for performing the steps required on the reception side. The invention is particularly significant for a radio system, especially a synchronised broadcasting system, as in the reception of radio transmitters in mobile recievers, e.g. in a motor vehicle, the user wants to be able to receive the desired programme at the actual point of reception quickly and reliably. With prior art systems, like the radio data signal, this is possible only to a very limited degree, for instance with traffic news. The invention makes it possible, however, to discover which programmes and/or parts thereof can be received at any point, at least for small partial areas of a zone equipped with radio transmitters, and display them for user's individual selection. This gives the user the advantage of being able to see the receivable programmes and to receive the selected programme rapidly. The invention eliminates time-consuming seeking of a desired programme.