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11. 发明授权

US5576837A Digital modulators for use with sub-nyquist sampling of raster-scanned samples of image intensity 失效
公开(公告)号：US5576837A
公开(公告)日：1996-11-19
申请号：US296796
申请日：1994-08-26
申请人： Christopher H. Strolle , Hermann J. Weckenbrock
发明人： Christopher H. Strolle , Hermann J. Weckenbrock
IPC分类号： H04N5/93 , H04L27/00 , H04N5/76 , H04N5/92 , H04N7/12 , H04N9/78 , H04N9/797 , H04N9/80 , H04N9/82 , H04N9/83 , H04N9/835 , H04N9/84 , H04N9/898 , H04N9/79 , H04N11/02 , H04N11/04
CPC分类号： H04N9/7976 , H04N9/797 , H04N9/80 , H04N9/8205 , H04N9/831 , H04N9/835 , H04N9/84 , H04N9/898
摘要： Apparatus useful in electronics for the tape recording of a video signal, which is a baseband signal of a prescribed bandwidth extending up to a prescribed maximum frequency, processes the video signal to generate a folded-spectrum video signal. The video signal is digitized and supplied to a digital band-splitting filter with a cross-over frequency at one-half said prescribed maximum frequency, for separating the digitized video signal into samples of a lower-frequency-band component and into samples of a higher-frequency-band component. A balanced modulator is connected for modulating a folding carrier wave of the prescribed maximum frequency, which modulation is done in accordance with the higher-frequency-band component to generate a balanced modulation signal; and the balanced modulation signal is linearly combined with the lower-frequency-band component to generate the folded-spectrum video signal. Preferably, the sampling rate of the digitized video signal is exactly the Nyquist rate of the prescribed maximum frequency, reduces the balanced modulation of a suitably phased folding carrier wave to multiplication of successive samples of the modulating signal alternately by plus one and by minus one. Such multiplications are done without having to use a digital multiplier.

12. 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。

13. 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。

14. 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.

15. 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.

16. 发明授权

US5430497A Removal of the folding carrier and sidebands from an unfolded video signal 失效
标题翻译：从展开的视频信号中去除折叠载体和边带
公开(公告)号：US5430497A
公开(公告)日：1995-07-04
申请号：US562907
申请日：1990-08-06
申请人： Christopher H. Strolle , Jung-Wan Ko , Raymond A. Schnitzler
发明人： Christopher H. Strolle , Jung-Wan Ko , Raymond A. Schnitzler
IPC分类号： H04N5/208 , H04N5/14 , H04N5/91 , H04N5/93 , H04N7/12 , H04N9/79 , H04N9/797 , H04N11/02 , H04N7/00
CPC分类号： H04N5/142 , H04N9/7908 , H04N9/7976
摘要： Apparatus is disclosed for processing video information which is reproduced from a magnetic recording medium in a video cassette recorder. The luminance portion of the video signal, which is "folded" about a sampling frequency carrier before recording on magnetic tape, is unfolded after being read from the magnetic tape to restore the bandwidth of the signal, and is applied in parallel through horizontal and vertical comb filters. The combined output of the horizontal comb filter and the vertical comb filter may include incompletely cancelled horizontal and vertical components of the folding frequency and sidebands due to the effects of picture contents. An edge detector receptive to the unfolded video signal responds to an encountered brightness edge, and generates a signal which varies the proportions of the video outputs of the horizontal and vertical comb filters in the combined output.
摘要翻译：公开了用于处理从盒式录像机中的磁记录介质再现的视频信息的装置。视频信号的亮度部分在从磁带上记录之前被关于采样频率载波“折叠”在从磁带读取之后被展开以恢复信号的带宽，并且通过水平和垂直并行地应用梳状滤波器由于图像内容的影响，水平梳状滤波器和垂直梳状滤波器的组合输出可能包括不完全取消的折叠频率和边带的水平和垂直分量。接收解开的视频信号的边缘检测器响应遇到的亮度边缘，并产生改变组合输出中的水平和垂直梳状滤波器的视频输出的比例的信号。

17. 发明授权

US5822490A Apparatus and method for color-under chroma channel encoded with a high frequency luminance signal 失效
标题翻译：用高频亮度信号编码的色彩下通道的装置和方法
公开(公告)号：US5822490A
公开(公告)日：1998-10-13
申请号：US996525
申请日：1992-12-23
申请人： Christopher H. Strolle
发明人： Christopher H. Strolle
IPC分类号： H04N9/83 , H04N9/79
CPC分类号： H04N9/83
摘要： A video signal processing system has luminance signal and a chroma carrier modulated with chrominance information. The system includes circuitry responsive to the chroma carrier for generating a phase alternating carrier having a phase alternating from field to field; circuitry for modulating a selected luminance signal on the phase alternating carrier and circuitry for adding the modulated phase alternating carrier to the chroma carrier modulated with chroma information.
摘要翻译：视频信号处理系统具有用色度信息调制的亮度信号和色度载波。该系统包括响应于色度载体的电路，用于产生具有从场到场交替的相位的相位交替载波; 用于调制相位交变载波上的所选亮度信号的电路和用于将调制相位交替载波添加到用色度信息调制的色度载波的电路。

18. 发明授权

US5799037A Receiver capable of demodulating multiple digital modulation formats 失效
标题翻译：能够解调多个数字调制格式的接收机
公开(公告)号：US5799037A
公开(公告)日：1998-08-25
申请号：US721663
申请日：1996-09-27
申请人： Christopher H. Strolle , Steven T. Jaffe
发明人： Christopher H. Strolle , Steven T. Jaffe
IPC分类号： H04L27/06 , H03D1/06 , H03D3/00 , H03J7/04 , H04L7/027 , H04L7/033 , H04L25/03 , H04L27/00 , H04L27/38 , H04N5/44 , H03H7/30 , H04L27/14
CPC分类号： H03J7/04 , H04L25/0307 , H04L27/0008 , H04L7/0278 , H04N5/4401 , H03D3/007 , H04L2025/03382 , H04L2025/0342 , H04L2025/0349 , H04L7/0334
摘要： A receiver for demodulating multiple digital modulation formats including vestigial sideband (VSB), quadrature amplitude modulation (QAM), and offset QAM (OQAM). The receiver includes a timing recovery circuit that produces accurate timing information for each modulation format and a signal processor for adaptive equalization and quantization of each modulation format. The adaptive equalizer is a passband equalizer that performs blind equalization using a feed forward equalizer and a decision feedback equalizer.
摘要翻译：一种用于解调多个数字调制格式的接收机，包括残留边带（VSB），正交幅度调制（QAM）和偏移QAM（OQAM）。该接收机包括一个定时恢复电路，为每个调制格式产生准确的定时信息，以及一个用于每个调制格式的自适应均衡和量化的信号处理器。自适应均衡器是使用前馈均衡器和判决反馈均衡器执行盲均衡的通带均衡器。

19. 发明授权

US4661850A Progressive scan television system with interlaced inter-field sum and difference components 失效
标题翻译：逐行扫描电视系统具有交错的场间和和差分量
公开(公告)号：US4661850A
公开(公告)日：1987-04-28
申请号：US824902
申请日：1986-01-31
申请人： Christopher H. Strolle , Glenn A. Reitmeier
发明人： Christopher H. Strolle , Glenn A. Reitmeier
IPC分类号： H04N7/015 , H04N9/80 , H04N11/24 , H04N7/01 , H04N11/06 , H04N11/14
CPC分类号： H04N11/008 , H04N11/004
摘要： A progressively scanned video signal is encoded into temporal sum and difference components for transmission. The sum signal is temporally filtered, decimated and time expended to be compatible with interlaced receivers. The difference signal, also temporally filtered, decimated and time expanded, is conveyed via single or separate channels with the sum signal to a progressive scan receiver for reconstitution of the original progressive scan signal. Modified quadrature amplitude modulation is used to convey the sum and difference signals in a common channel.
摘要翻译：逐行扫描的视频信号被编码为用于传输的时间和和差分量。和信号被时间滤波，抽取和时间消耗以与隔行接收器兼容。也经时间滤波，抽取和时间扩展的差分信号通过具有和信号的单个或单独信道传送到逐行扫描接收机，用于重构原始逐行扫描信号。改进的正交幅度调制用于传送公共信道中的和和信号。

20. 发明授权

US4471349A Phantom raster generating apparatus scanning TV image memory in angular and orthogonal coordinates 失效
标题翻译：幻影光栅产生装置以角度和正交坐标扫描电视图像存储器
公开(公告)号：US4471349A
公开(公告)日：1984-09-11
申请号：US305084
申请日：1981-09-24
申请人： Christopher H. Strolle
发明人： Christopher H. Strolle
IPC分类号： H04N5/262 , G06F1/02 , G06F1/03 , G06F12/00 , G06F17/17 , G06T3/00 , G09G5/14 , G11C7/00 , G11C8/04 , G11C8/16 , H04N7/01 , H04N9/78 , G09G1/16
CPC分类号： G06T3/606 , G06F1/02 , G06F1/0307 , G06F17/175 , G11C7/00 , G11C8/04 , G11C8/16 , H04N9/78 , G06F2101/04 , G06F2101/08 , G06F2101/10
摘要： Descriptions of phantom raster scan are generated with high spatial resolution in angular coordinates and in coordinates, such as radial coordinates, orthogonal to the angular coordinates. The more significant bits of these coordinates are used to generate read addresses for a relatively low spatial resolution image memory supplying, in parallel, four data at a time descriptive of spatially adjacent points in image space. The less significant bits of one of these coordinates are used in calculating first and second linear interpolations between pairs of these data, and the less significant bits of the other of these coordinates are used in calculating a third linear interpolation between the results of the earlier linear interpolations to obtain successive samples of a video signal descriptive of the image stored in image memory. This avoids the need for large-capacity ROM in making the interpolations among image memory data to avoid rastering effects in the display.
摘要翻译：以角坐标和坐标（例如与角坐标正交的径向坐标）具有高空间分辨率来生成幻像光栅扫描的描述。这些坐标的更高有效位用于为相对较低的空间分辨率图像存储器生成读取地址，并行地提供描述图像空间中的空间相邻点的四个数据。这些坐标之一的较低有效位用于计算这些数据的对之间的第一和第二线性内插，并且这些坐标中另一个的较低有效位用于计算先前线性的结果之间的第三线性插值内插以获得描述存储在图像存储器中的图像的视频信号的连续样本。这避免了在图像存储器数据之间进行内插的大容量ROM的需要，以避免显示器中的划痕效应。

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