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1. 发明授权

US07933258B2 Bypassing transcoding operations in a communication network 有权
标题翻译：在通信网络中绕过代码转换操作
公开(公告)号：US07933258B2
公开(公告)日：2011-04-26
申请号：US10512103
申请日：2003-04-24
申请人： Nikolaus Farber , Karl Hellwig
发明人： Nikolaus Farber , Karl Hellwig
IPC分类号： H04L12/66
CPC分类号： H04W88/181
摘要： A method and a device for initiating the bypassing of a pair of transcoding operations that are performed in series by a first transcoder arranged together with a first communication terminal on a local side of a communication network and by a second transcoder arranged together with a second communication terminal on a distant side of the communication network are described. The method includes receiving from the distant side information about an encoding format currently in use on the distant side and about encoding capabilities of the distant side and transmitting to the distant side information about an encoding format currently in use on the local side and about encoding capabilities of the local side to enable on one or on both sides a change of the encoding format currently in use prior to initiating the bypassing of the transcoding operations.
摘要翻译：一种方法和装置，用于启动由通信网络的本地侧上与第一通信终端一起布置的第一代码转换器串行执行的一对代码转换操作的旁路，以及与第二通信方式一起布置的第二代码转换器描述了通信网络的远侧的终端。该方法包括从远端接收关于远端当前使用的编码格式的信息以及远端的编码能力以及向远端发送关于本地当前正在使用的编码格式的信息以及关于编码能力本地侧在一个或两侧上启用在启动绕过代码转换操作之前当前使用的编码格式的改变。

2. 发明申请

US20050232232A1 Bypassing transcoding operations in a communication network 有权
标题翻译：在通信网络中绕过代码转换操作
公开(公告)号：US20050232232A1
公开(公告)日：2005-10-20
申请号：US10512103
申请日：2003-04-24
申请人： Nikolaus Farber , Karl Hellwig
发明人： Nikolaus Farber , Karl Hellwig
IPC分类号： H04W88/18 , H04L12/66
CPC分类号： H04W88/181
摘要： A method and a device for initiating the bypassing of a pair of transcoding operations that are performed in series by a first transcoder arranged together with a first communication terminal on a local side of a communication network and by a second transcoder arranged together with a second communication terminal on a distant side of the communication network are described. The method includes receiving from the distant side information about an encoding format currently in use on the distant side and about encoding capabilities of the distant side and transmitting to the distant side information about an encoding format currently in use on the local side and about encoding capabilities of the local side to enable on one or on both sides a change of the encoding format currently in use prior to initiating the bypassing of the transcoding operations.
摘要翻译：一种方法和装置，用于启动由通信网络的本地侧上与第一通信终端一起布置的第一代码转换器串行执行的一对代码转换操作的旁路，以及与第二通信方式一起布置的第二代码转换器描述了通信网络的远侧的终端。该方法包括从远端接收关于远端当前使用的编码格式的信息以及远端的编码能力以及向远端发送关于本地当前正在使用的编码格式的信息以及关于编码能力本地侧在一个或两侧上启用在启动绕过代码转换操作之前当前使用的编码格式的改变。

3. 发明申请

US20070143617A1 Method for embedding and detecting a watermark in a digital audio signal 审中-公开
标题翻译：在数字音频信号中嵌入和检测水印的方法
公开(公告)号：US20070143617A1
公开(公告)日：2007-06-21
申请号：US10546083
申请日：2003-02-21
申请人： Nikolaus Farber , Frank Hartung
发明人： Nikolaus Farber , Frank Hartung
IPC分类号： H04L9/00
CPC分类号： G11B20/00086 , G10L25/90 , G11B20/00891
摘要： The invention relates to a method for embedding and detecting a watermark in a digital audio signal. For embedding the watermark in the digital audio signal a modified-segment (Sout(t)) is created from a selected input-segment (sin(t)) of the digital audio signal. The modified-segment (sout(t)) is created such, that at least one of two sub-segments ((ssub, 1(t)(ssub, 2(t)) of the input-segment (sin(t)) is time-shifted (dt) such that in an overlapping zone (Lov) a correlation value of the two sub-segments (ssub, 1(t), (ssub, 2(t)) is a maximum. The signal (sov(t)) in the overlapping zone (Lov) is then created as a weighted average of the two sub-segments ((ssub, 1(t), (ssub, 2(t)) in said overlapping zone. For detecting the embedded watermark in a received digital audio signal (x(t)), a first template-signal (h1 (t)) and a second template-signal (h2(t)) are generated. Then a first (c1) and a second (c2) correlation value are created by comparing the first (h1(t)) and second (h2(t)) template-signal with the received digital audio signal (x(t)). Finally, it is assumed that a watermark is included in the received digital audio signal, if the second correlation value (c2) is higher than the first correlation value (c1).
摘要翻译：本发明涉及一种在数字音频信号中嵌入和检测水印的方法。为了将水印嵌入到数字音频信号中，从所选择的输入段（s _{）中创建一个修改段（S （t）），（t））的数字音频信号。创建修改段（s）的两个子段中的至少一个子区段（（s _{输入段（s）中的<1>（t）（s _{SUB （t） SUP（t））是时移（dt），使得在重叠区域（L> ov）中，两个子段（s _{/ SUB>，1（t），（s _{/ 2> 2（t））是最大值，然后，在重叠区域（L ）中的ov（t））作为两个子段的加权平均值（（s）在所述重叠区域中，为了检测所接收的数字音频信号中的嵌入水印，在所述重叠区域中，（x（t）），第一模板信号（h1（t））和第二模板信号（h2（t）），然后通过以下方式创建第一（c1）和第二（c2）相关值：将第一（h1（t））和第二（h2（t））模板信号与所接收的数字音频进行比较信号（x（t））。最后，如果第二相关值（c2）高于第一相关值（c1），则假设水印被包括在接收的数字音频信号中。}}}}}

4. 发明授权

US07075986B2 Method and apparatus for providing scalable pre-compressed digital video with reduced quantization based artifacts 失效
公开(公告)号：US07075986B2
公开(公告)日：2006-07-11
申请号：US10292257
申请日：2002-11-12
申请人： Bernd Girod , Staffan Ericsson , Yuriy A. Resznik , Nikolaus Farber
发明人： Bernd Girod , Staffan Ericsson , Yuriy A. Resznik , Nikolaus Farber
IPC分类号： H04N7/12
CPC分类号： H04N9/8042 , H04N19/105 , H04N19/12 , H04N19/152 , H04N19/172 , H04N19/187 , H04N19/39 , H04N19/51 , H04N19/59 , H04N19/61 , H04N21/23424 , H04N21/23439 , H04N21/2662 , H04N21/6379 , H04N21/64769
摘要： A method for generating a digital motion video sequence at a plurality of bit rates uses a transitional coding source when switching between bitstreams having different bit rates during transmission of a video sequence. The transitional data may be frames coded using reconstructed frames reconstructed for a first bitstream using the characteristics of the second bitstream. These “low bit rate insert frames,” or LBIFs, contain the image characteristics of a signal coded at the lower bit rate. With a bitstream having a higher bit rate being periodically coded using an LBIF, a point of image continuity between the two bitstreams is provided. Thus, switching from one bitstream to the other at this point in the video sequence minimizes the production of artifacts caused by differences in bit rate. In another embodiment of the invention, a separate set of transitional data is created, taking the form of “switch” frames, or S-frames. The S-frames are typically the difference between a frame of a first bitstream and a frame of a second bitstream. These frames are inserted into the decoded bitstream during the transition from one bitstream to the other, and compensate for any visual artifacts that might otherwise occur due to the difference in bit rate of the two bitstreams.

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