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1. 发明授权

US06253022B1 Video signal encoded with additional detail information 失效
标题翻译：视频信号用附加的详细信息编码
公开(公告)号：US06253022B1
公开(公告)日：2001-06-26
申请号：US09461206
申请日：1999-12-14
申请人： Christopher H. Strolle , Jung Wan Ko , Raymond Schnitzler
发明人： Christopher H. Strolle , Jung Wan Ko , Raymond Schnitzler
IPC分类号： H04N576
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
摘要： In video tape recording apparatus composite video signals are separated into their luminance and chrominance components for processing prior to recording. The luminance components are digitized, adaptively temporal and spatial filtered, and folded into a reduced frequency spectrum to generate a digital signal that is converted to analog form to modulate the frequency of the luminance carrier signal used in video tape recording. The chrominance components are converted to the color-under signals used in video tape recording. In video tape playback apparatus the color-under signals are converted up in frequency to provide chrominance components for inclusion in reproduced composite video signals. Also, in the video tape playback apparatus, the frequency modulation of the luminance carrier signal is detected to recover folded luminance signals which are digitized, time-base-corrected, unfolded, and adaptively temporal and spatial filtered to suppress aliases associated with unfolding to generate a digital signal that is converted to analog form to provide luminance components for inclusion in reproduced composite video signals. The backward compatability of the video tape recordings when playing them back in video tape playback apparatus already in the field is accommodated by de-emphasizing the high frequencies of the luma during recording. The high frequencies of the luma can be re-emphasized during playback to maintain substantially full NTSC or PAL luminance bandwidth.
摘要翻译：在录像带记录装置中，复合视频信号被分离成它们的亮度和色度分量，以便在记录之前进行处理。亮度分量被数字化，自适应地进行时间和空间滤波，并折叠成降频频谱，以产生转换为模拟形式的数字信号，以调制录像带中使用的亮度载波信号的频率。色度分量被转换为录像带中使用的彩色信号。在视频磁带播放装置中，彩色信号在频率上被转换，以提供色度分量以包括在再现的复合视频信号中。此外，在视频磁带播放装置中，检测亮度载波信号的频率调制，以恢复经数字化，时基校正，解折叠的折叠亮度信号，并进行自适应时间和空间滤波，以抑制与展开相关的别名以产生被转换为模拟形式以提供用于包含在再现的复合视频信号中的亮度分量的数字信号。录像带录像的背面兼容性在已经在现场的录像带播放装置中播放回来时通过在记录期间强调亮度的高频来适应。在重放期间可以重新强调亮度的高频，以保持基本上完整的NTSC或PAL亮度带宽。

2. 发明授权

US06246827B1 Deemphasis and subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal 失效
标题翻译：折叠视频信号的高能量反向分量的强调和随后的重新加权
公开(公告)号：US06246827B1
公开(公告)日：2001-06-12
申请号：US08087362
申请日：1993-07-08
申请人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
发明人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
IPC分类号： H04N979
CPC分类号： H04N5/923 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/835 , H04N9/898
摘要： A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filtering is done to separate the low-frequency and compressed-in-dynamic-range high-frequency portions of the recovered luminance signal from each other. A corer responds to the separated compressed-in-dynamic-range high-frequency portion of the recovered luminance signal to provide a cored high-frequency portion with expanded dynamic range and reduced noise. The level of the cored high-frequency portion with expanded dynamic range and reduced noise is then boosted by a predetermined amount to compensate for energy losses during the compression of the dynamic range and added back to the low-frequency portion of the recovered luminance signal to reproduce a full-band luminance signal with at least partially restored dynamic range for high-frequencies and without readily visible high-frequency noise.
摘要翻译：一种用于从包含先前记录的亮度信号的介质再现亮度信号的系统，其中其高频部分在动态范围内被压缩，包括用于从介质中恢复该亮度信号的电路。完成滤波以将恢复的亮度信号的低频和压缩在动态范围的高频部分彼此分离。核心部分对恢复的亮度信号的分离压缩在动态范围高频部分进行响应，以提供具有扩展的动态范围和降低的噪声的核心高频部分。然后将具有扩大的动态范围和降低的噪声的核心高频部分的电平提升预定量，以补偿在动态范围的压缩期间的能量损失，并将其恢复到恢复的亮度信号的低频部分，再现具有用于高频的至少部分恢复的动态范围的全频带亮度信号，并且没有容易看到的高频噪声。

3. 发明授权

US5673355A Deemphasis & Subsequent reemphasis of high-energy reversed-spectrum components of a folded video signal 失效
标题翻译：对重叠视频信号的高能量反向分量进行去加重和随后的重新加权
公开(公告)号：US5673355A
公开(公告)日：1997-09-30
申请号：US484707
申请日：1995-06-07
申请人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
发明人： Christopher H. Strolle , Allen LeRoy Limberg , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung Wan Ko , Jong Kyung Yun
IPC分类号： H04N5/923 , H04N9/797 , H04N9/80 , H04N9/82 , H04N9/835 , H04N9/898 , H04N9/79
CPC分类号： H04N9/8205 , H04N5/923 , H04N9/7976 , H04N9/80 , H04N9/835 , H04N9/898
摘要： A system for reproducing a luminance signal from a medium containing a previously recorded luminance signal with a high-frequency portion thereof compressed in dynamic range includes a circuit for recovering that luminance signal from the medium. Filtering is done to separate the low-frequency and compressed-in-dynamic-range high-frequency portions of the recovered luminance signal from each other. A corer responds to the separated compressed-in-dynamic-range high-frequency portion of the recovered luminance signal to provide a cored high-frequency portion with expanded dynamic range and reduced noise. The level of the cored high-frequency portion with expanded dynamic range and reduced noise is then boosted by a predetermined amount to compensate for energy losses during the compression of the dynamic range and added back to the low-frequency portion of the recovered luminance signal to reproduce a full-band luminance signal with at least partially restored dynamic range for high-frequencies and without readily visible high-frequency noise.
摘要翻译：一种用于从包含先前记录的亮度信号的介质再现亮度信号的系统，其中其高频部分在动态范围内被压缩，包括用于从介质中恢复该亮度信号的电路。完成滤波以将恢复的亮度信号的低频和压缩在动态范围的高频部分彼此分离。核心部分对恢复的亮度信号的分离压缩在动态范围高频部分进行响应，以提供具有扩展的动态范围和降低的噪声的核心高频部分。然后将具有扩大的动态范围和降低的噪声的核心高频部分的电平提升预定量，以补偿在动态范围的压缩期间的能量损失，并将其恢复到恢复的亮度信号的低频部分，再现具有用于高频的至少部分恢复的动态范围的全频带亮度信号，并且没有容易看到的高频噪声。

4. 发明授权

US5511099A Passband sync block recovery 失效
标题翻译：通带同步块恢复
公开(公告)号：US5511099A
公开(公告)日：1996-04-23
申请号：US220028
申请日：1994-03-30
申请人： Jung-Wan Ko , Christopher H. Strolle
发明人： Jung-Wan Ko , Christopher H. Strolle
IPC分类号： H04J3/06 , H04L7/04 , H04L27/00 , H04N5/04 , H04N5/08 , H04N5/44 , H04N5/455 , H04N21/2383 , H04N21/438 , H04L7/00
CPC分类号： H04N21/2383 , H04J3/0611 , H04L27/00 , H04L7/042 , H04N21/4382 , H04N5/08 , H04N5/455 , H04L7/043 , H04N5/04 , H04N5/4401
摘要： A digital communication system includes a data encoder responsive to a digital data stream for forming sequential data blocks from the digital data stream which are representative of information to be communicated. A synchronization data encoder responsive to the digital data stream, generates sequential sync blocks including synchronization data which are related to the sequential data blocks, as well as a prescribed digital sequence. A multiplexor responsive to the sequential data blocks and the sequential sync blocks, combines the blocks in an alternating manner so as to form a block-coded information signal. A modulator responsive to the block-coded information signal, provides a modulated block-coded information signal to a communication channel. A communication channel receiver includes a synchronization data recovery circuit responsive to the modulated block-coded information signal for detecting the prescribed digital sequence and providing at an output a reference signal in response to the detection. A demodulator responsive to the modulated block-coded information signal and the reference signal provided by the synchronization data recovery circuit demodulates the modulated block-coded information signal. Furthermore, a pre-demodulator phase-adjusting circuit is also responsive to the reference signal for adjusting the phase of the modulated block-coded information signal before its demodulation.
摘要翻译：数字通信系统包括响应于数字数据流的数据编码器，用于从代表要传送的信息的数字数据流中形成顺序数据块。响应于数字数据流的同步数据编码器产生包括与顺序数据块相关的同步数据的顺序同步块以及规定的数字序列。响应于顺序数据块和顺序同步块的多路复用器以交替方式组合这些块以便形成块编码的信息信号。响应于块编码信息信号的调制器向通信信道提供经调制的块编码信息信号。通信信道接收机包括响应于调制块编码信息信号的同步数据恢复电路，用于检测规定的数字序列，并在输出端提供响应于检测的参考信号。响应于调制块编码信息信号的解调器和由同步数据恢复电路提供的参考信号解调调制块编码信息信号。此外，预解调器相位调整电路还响应于参考信号，以在其解调之前调整调制块编码信息信号的相位。

5. 发明授权

US6134373A System for recording and reproducing a wide bandwidth video signal via a narrow bandwidth medium 失效
标题翻译：用于通过窄带宽媒体记录和再现宽带宽视频信号的系统
公开(公告)号：US6134373A
公开(公告)日：2000-10-17
申请号：US787690
申请日：1991-11-04
申请人： Christopher H. Strolle , Chandrakant B. Patel , Werner F. Wedam , Jung Wan Ko , Raymond Schnitzler , Jong Kyung Yun
发明人： Christopher H. Strolle , Chandrakant B. Patel , Werner F. Wedam , Jung Wan Ko , Raymond Schnitzler , Jong Kyung Yun
IPC分类号： H04N5/93 , H04N9/78 , H04N9/797 , H04N9/80 , H04N9/82 , H04N9/83 , H04N9/835 , H04N9/84 , H04N9/898 , H04N9/79
CPC分类号： H04N9/831 , H04N9/797 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/835 , H04N9/84 , H04N9/898
摘要： An encoder separates luminance and chrominance signal components of a composite video signal. The frame-to-frame changes in the luminance signal are detected, and a motion signal is derived therefrom. The higher frequency portion of the luminance signal is adaptively de-emphasized in amplitude and folded into the spectrum of the lower frequency portion of the luminance signal, to generate a folded-spectrum luminance signal for modulating the frequency of a luma carrier. In a combined signal, suitable for magnetic recording in accordance with a modified VHS standard, the chrominance signal is translated in frequency to generate a color-under signal in a frequency band below that occupied by the FM luma carrier. The de-emphasized higher frequency portion of the luminance signal, as folded into its lower frequency portion, and encoding of the motion signal onto vacant portions of the frequency band below that occupied by the FM luma carrier in such a magnetic recording facilitate its being compatibly reproduced by conventional VHS reproduction devices. In a wideband reproduction device a decoder demodulates the folded-spectrum luminance signal from the FM luma carrier, unfolds the lumininance signal, and reemphasizes the high frequencies of the unfolded luminance signal. The color-under signal is translated in frequency to regenerate chrominance signal combined with the unfolded luminance signal with its high frequencies re-emphasized to their original amplitude, regenerating a composite signal descriptive of a full bandwidth image. The motion signal is utilized in the encoder for motion-adaptively pre-filtering the input luminance and is recovered in the decoder for motion-adaptively post-filtering the unfolded luminance.
摘要翻译：编码器分离复合视频信号的亮度和色度信号分量。检测亮度信号中的帧到帧的变化，并从中导出运动信号。亮度信号的较高频率部分在幅度上自适应去强调，并折射成亮度信号的较低频率部分的频谱，以产生用于调制亮度载波频率的折射谱亮度信号。在适合于根据修改的VHS标准的磁记录的组合信号中，色度信号被频率转换，以在低于由FM亮度载波占据的频带内产生下色信号。亮度信号的去加重的较高频率部分被折叠成其较低频率部分，并且将运动信号编码到在这种磁记录中由FM亮度载波占据的频带以下的频带的空的部分上，便于其兼容由常规VHS再现设备再现。在宽带再现装置中，解码器解调来自FM亮度载波的折叠频谱亮度信号，展开亮度信号，并重新强调展开的亮度信号的高频。彩色信号以频率转换以再现与展开的亮度信号组合的色度信号，其高频被再次强调到其原始幅度，再生描述全带宽图像的复合信号。运动信号在编码器中用于对输入亮度进行运动自适应预滤波，并在解码器中恢复运动自适应地对展开后的亮度进行后置滤波。

6. 发明授权

US5870522A Backward compatible HDTV recording/reproducing system 失效
标题翻译：向后兼容的HDTV录音/再现系统
公开(公告)号：US5870522A
公开(公告)日：1999-02-09
申请号：US475430
申请日：1995-06-07
申请人： Christopher H. Strolle , Jung Wan Ko
发明人： Christopher H. Strolle , Jung Wan Ko
IPC分类号： H04N5/782 , G11B5/02 , G11B5/027 , G11B20/02 , H04N5/7826 , H04N5/926 , H04N9/79 , H04N9/804 , H04N9/82 , H04N9/83 , H04N5/78
CPC分类号： H04N5/78263 , H04N9/7925 , H04N5/78206 , H04N5/9264 , H04N9/8042 , H04N9/8227 , H04N9/83
摘要： A magnetic tape recording with a new signal encoding format, apparatus for recording this format and reproducing apparatus for reproducing signals from this format. A standard VHS signal is recorded as a first set of parallel slant tracks having a predetermined spacing between each slant track. A high definition television signal is recorded in pairs of slant tracks of a second type that flank a slant track of the first type and are narrower in width than the slant track of the first type they flank. Additionally, the azimuth angle of the tracks of the first type alternates between different predetermined values for successive tracks, and the azimuth angle of the tracks of the second type differ both from the azimuth angle of the tracks of the first type which they flank, and from the azimuth angle of the tracks of the second type which are positioned next to them in the space between tracks of the first type. This format allows one tape to record both a high definition television signal and a standard VHS signal, which standard VHS signal can be played back using ordinary tape machines. Accordingly, this format provides a way to avoid the problem of having to carry a dual inventory of tapes in a tape sales or rental business.
摘要翻译：具有新信号编码格式的磁带记录，用于记录该格式的装置和用于从该格式再现信号的再现装置。标准VHS信号被记录为在每个倾斜轨道之间具有预定间隔的第一组平行倾斜轨迹。高清晰度电视信号被记录在第二类型的倾斜轨道对中，该第二类倾斜轨道位于第一类型的倾斜轨道的侧面，并且宽度比其侧翼的第一类型的倾斜轨道窄。此外，第一类型的轨道的方位角在连续轨道的不同预定值之间交替，并且第二类型的轨道的方位角与其侧翼的第一类型的轨道的方位角不同，以及从第一类型的轨道之间的空间中位于它们旁边的第二类型的轨道的方位角。这种格式允许一个磁带录制高分辨率电视信号和标准VHS信号，标准的VHS信号可以使用普通磁带机进行播放。因此，该格式提供了一种避免在磁带销售或租赁业务中携带磁带的双重盘点的问题的方法。

7. 发明授权

US5845039A Time-base correction in a video recording/playback system 失效
公开(公告)号：US5845039A
公开(公告)日：1998-12-01
申请号：US431937
申请日：1995-05-01
申请人： Jung-Wan Ko , Alvin R. Balaban , Christopher H. Strolle
发明人： Jung-Wan Ko , Alvin R. Balaban , Christopher H. Strolle
IPC分类号： H04N5/956 , H04N5/935 , H04N9/79 , H04N9/797 , H04N9/82 , H04N9/83 , H04N9/84 , H04N9/896 , H04N9/898 , H04N11/02
CPC分类号： H04N9/797 , H04N9/7904 , H04N9/84 , H04N9/896 , H04N5/935 , H04N9/7921 , H04N9/8205 , H04N9/83 , H04N9/898
摘要： A video recording/playback system includes in its recording electronics time-base correctors both for luma signal and for color-under signal, the time-base corrector for luma signal being used to facilitate comb filtering and the time-base corrector for chroma signal being used to maintain luma/chroma tracking during recording. The video recording/playback system includes in its playback electronics time-base correctors both for played-back luma signal and for played-back color-under signal, the time-base corrector for played-back luma signal being used to facilitate comb filtering and the time-base corrector for played-back chroma signal being used to maintain luma/chroma tracking during playback. With appropriate switching, the same pair of time-base correctors can be used in both the recording and the playback electronics of a video recording/playback system. A detector in the recording electronics determines when there is substantial time-base error in the video signal received for recording and conditions the comb filtering of the luma signal during recording to be carried out in just the spatial domain and not in the frame-to-frame time domain. The recording electronics includes circuitry for signaling the playback electronics, via a recorded signal, that the comb filtering of the luma signal during recording was carried out in just the spatial domain and not in the frame-to-frame time domain. The playback electronics responds to such signaling to adapt the comb filtering of the played-back luma signal to suit.

8. 发明授权

US6104863A Video signal encoded with additional detail information 失效
标题翻译：视频信号用附加的详细信息编码
公开(公告)号：US6104863A
公开(公告)日：2000-08-15
申请号：US910491
申请日：1992-07-08
申请人： Christopher H. Strolle , Jung Wan Ko , Raymond Schnitzler
发明人： Christopher H. Strolle , Jung Wan Ko , Raymond Schnitzler
IPC分类号： H04N5/93 , H04N9/78 , H04N9/797 , H04N9/80 , H04N9/82 , H04N9/83 , H04N9/835 , H04N9/898 , H04N5/76
CPC分类号： H04N9/835 , H04N9/7976 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/898
摘要： In video tape recording apparatus composite video signals are separated into their luminance and chrominance components for processing prior to recording. The luminance components are digitized, adaptively temporal and spatial filtered, and folded into a reduced frequency spectrum to generate a digital signal that is converted to analog form to modulate the frequency of the luminance carrier signal used in video tape recording. The chrominance components are converted to the color-under signals used in video tape recording. In video tape playback apparatus the color-under signals are converted up in frequency to provide chrominance components for inclusion in reproduced composite video signals. Also, in the video tape playback apparatus, the frequency modulation of the luminance carrier signal is detected to recover folded luminance signals which are digitized, time-base-corrected, unfolded, and adaptively temporal and spatial filtered to suppress aliases associated with unfolding to generate a digital signal that is converted to analog form to provide luminance components for inclusion in reproduced composite video signals. The backward compatability of the video tape recordings when playing them back in video tape playback apparatus already in the field is accomodated by de-emphasizing the high frequencies of the luma during recording. The high frequencies of the luma can be re-emphasized during playback to maintain substantially full NTSC or PAL luminance bandwidth.
摘要翻译：在录像带记录装置中，复合视频信号被分离成它们的亮度和色度分量，以便在记录之前进行处理。亮度分量被数字化，自适应地进行时间和空间滤波，并折叠成降频频谱，以产生转换为模拟形式的数字信号，以调制录像带中使用的亮度载波信号的频率。色度分量被转换为录像带中使用的彩色信号。在视频磁带播放装置中，彩色信号在频率上被转换，以提供色度分量以包括在再现的复合视频信号中。此外，在视频磁带播放装置中，检测亮度载波信号的频率调制，以恢复经数字化，时基校正，解折叠的折叠亮度信号，并进行自适应时间和空间滤波，以抑制与展开相关的别名以产生被转换为模拟形式以提供用于包含在再现的复合视频信号中的亮度分量的数字信号。当录像带录制的录像带回放在已经在现场的录像带播放装置中的向后兼容性是通过在记录期间强调亮度的高频度来实现的。在重放期间可以重新强调亮度的高频，以保持基本上完整的NTSC或PAL亮度带宽。

9. 发明授权

US5365281A Motion signal detecting circuit 失效
公开(公告)号：US5365281A
公开(公告)日：1994-11-15
申请号：US903942
申请日：1992-06-26
申请人： Jung-Wan Ko , Christopher H. Strolle
发明人： Jung-Wan Ko , Christopher H. Strolle
IPC分类号： H04N5/14 , H04N9/797 , H04N9/64 , H04N7/18
CPC分类号： H04N5/144 , H04N9/7976
摘要： A motion signal detection circuit adapted to a video recording/reproducing apparatus having a frequency unfolding circuit for unfolding a luminance signal of a high frequency component included in the luminance signal of a low frequency component into an original frequency band, comprising a prefilter for eliminating the folding carrier and sidebands thereof included in the video signal unfolded by the frequency unfolding circuit, a comb filter for filtering the output of the prefilter to detect a motion signal, an error compensation circuit for compensating the errors included in the motion signal output from the comb filter.

10. 发明授权

US5500739A Frequency-multiplexing FM luma signal with color and 2nd under signals having overlapping frequency spectra 失效
标题翻译：频率复用具有颜色的FM亮度信号和具有重叠频谱的信号
公开(公告)号：US5500739A
公开(公告)日：1996-03-19
申请号：US59765
申请日：1993-05-11
申请人： Christopher H. Strolle , Chandrakant B. Patel , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung-Wan Ko , Jong-Kwung Yun , Allen L. Limberg
发明人： Christopher H. Strolle , Chandrakant B. Patel , Werner F. Wedam , Raymond Schnitzler , Hermann J. Weckenbrock , Jung-Wan Ko , Jong-Kwung Yun , Allen L. Limberg
IPC分类号： H04N9/80 , H04N9/82 , H04N9/835 , H04N9/79
CPC分类号： H04N9/835 , H04N9/80 , H04N9/8205
摘要： A frequency-multiplexed video signal is generated in which a color-under signal and a second under signal are linearly combined with at least partially overlapping frequency spectra to form a composite under signal for an FM luma signal. The frequency-multiplexed video signal is suited for recording on magnetic tape using helical scanning methods and for being played back from the magnetic tape using helical scanning methods. The second under signal is generated in such way that line-comb filtering can be used during playback to separate color-under signal and second under signal each from the composite signal despite their frequency spectra being at least partially overlapping in the composite signal.
摘要翻译：产生频率复用的视频信号，其中彩色信号和第二下信号与至少部分重叠的频谱线性组合以形成用于FM亮度信号的复合信号。频率复用视频信号适用于使用螺旋扫描方法在磁带上进行记录，并且使用螺旋扫描方法从磁带重放。第二下信号被生成为使得在重放期间可以使用线梳滤波来分离彩色信号和第二下信号，每个来自复合信号，尽管它们的频谱在复合信号中至少部分重叠。

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