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1. 发明授权

US06400680B1 Data transformation of the inverse-fourier type 失效
标题翻译：逆傅里叶变换的数据变换
公开(公告)号：US06400680B1
公开(公告)日：2002-06-04
申请号：US09000667
申请日：1997-12-30
申请人： Eberhard Fisch
发明人： Eberhard Fisch
IPC分类号： H04J1100
CPC分类号： G06F17/147
摘要： In a method of transforming an input data block (IDB) comprising frequency coefficients (CF) into an output data block (ODB) comprising spatial coefficients, the following steps are carried out. For each frequency coefficient (CF) which is not zero, an individual block of spatial coefficients (IB) is established on the basis of pre-stored data (PSD). The pre-stored data (PSD) pertains to a spatial pattern associated to the frequency coefficient (CF). The thus obtained individual blocks of spatial coefficients (IB) are accumulated to obtain the output data block (ODB). The method allows a transformation of the inverse-fourier type, such as an inverse discrete-cosine transformation for example, to be carried out with relatively little computational effort. The method is particularly suitable for use in video decoding applications.
摘要翻译：在将包括频率系数（CF）的输入数据块（IDB）变换为包括空间系数的输出数据块（ODB）的方法中，执行以下步骤。对于不为零的每个频率系数（CF），基于预先存储的数据（PSD）建立单个空间系数块（IB）。预存储数据（PSD）属于与频率系数（CF）相关联的空间模式。如此获得的空间系数（IB）的各个块被累积以获得输出数据块（ODB）。该方法允许例如逆离散余弦变换的逆傅立叶变换类型的转换以相对较少的计算量进行。该方法特别适用于视频解码应用。

2. 发明授权

US5337089A Apparatus for converting a digital video signal which corresponds to a first scan line format into a digital video signal which corresponds to a different scan 失效
标题翻译：用于将对应于第一扫描线格式的数字视频信号转换成对应于不同扫描的数字视频信号的装置
公开(公告)号：US5337089A
公开(公告)日：1994-08-09
申请号：US73402
申请日：1993-06-07
申请人： Eberhard Fisch
发明人： Eberhard Fisch
IPC分类号： H04N5/44 , H04N7/01 , H04N7/26 , H04N7/46
CPC分类号： H04N7/0125 , H04N19/59 , H04N19/80 , H04N7/012
摘要： Apparatus for converting a digital video signal between two different formats, such as interlaced field and non-interlaced progressive frame, and which avoids filtering and sub-sampling of portions of the video data which are the same in either format. For conversion from interlaced field to progressive frame, only alternate fields of the signal are subjected to digital filtering. The filtered fields are then combined with the non-filtered fields, which are subjected only to an equivalent delay, to derive averaged frames which constitute a progressive frame video signal. For the reverse conversion, alternate scan lines of each frame are sub-sampled and averaged to derive a field which is then interlaced with a field formed by the remaining scan lines of such frame, thereby deriving an interlaced field video signal.
摘要翻译：用于在诸如隔行扫描和非隔行逐行帧的两种不同格式之间转换数字视频信号的装置，并且避免对两种格式相同的视频数据的部分进行滤波和次采样。对于从隔行扫描场到逐行帧的转换，信号的交替场仅进行数字滤波。然后将经滤波的场与未经滤波的场组合，其仅经受等效的延迟，以导出构成逐行帧视频信号的平均帧。对于反向转换，每帧的交替扫描线被子采样和平均以导出一个场，然后与由这种帧的剩余扫描线形成的场交织，从而导出隔行扫描场视频信号。

3. 发明授权

US5214501A Method and apparatus for the transmission and reception of a multicarrier high definition television signal 失效
标题翻译：用于发送和接收多载波高清晰度电视信号的方法和装置
公开(公告)号：US5214501A
公开(公告)日：1993-05-25
申请号：US614885
申请日：1990-11-16
申请人： Alan P. Cavallerano , Eberhard Fisch , Mikhail Tsinberg
发明人： Alan P. Cavallerano , Eberhard Fisch , Mikhail Tsinberg
IPC分类号： H04L27/26 , H04N5/44 , H04N5/60 , H04N11/24
CPC分类号： H04L5/0062 , H04L27/2601 , H04L5/0005 , H04L5/0044 , H04L5/0066 , H04N11/002 , H04N5/4401 , H04N5/602
摘要： A method and apparatus for generating and receiving a high definition television signal suitable for use in a broadcasting environment wherein a conventional television signal is also used, having multiple frequency multiplexed subcarriers placed within the frequency spectrum of the signal so as to minimize interference with and from the conventional television signal.
摘要翻译：一种用于生成和接收适合在广播环境中使用的高清晰度电视信号的方法和装置，其中还使用传统的电视信号，其具有放置在信号的频谱内的多个频率复用的副载波，以便最小化与传统的电视信号。

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