专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US5774624A Image signal recording apparatus having intrapicture and interpicture coding modes 失效
标题翻译：图像信号记录装置具有图像内和图像间编码模式
公开(公告)号：US5774624A
公开(公告)日：1998-06-30
申请号：US453437
申请日：1995-05-30
申请人： Masahiko Enari
发明人： Masahiko Enari
IPC分类号： G11B27/032 , G11B27/036 , H04N5/783 , H04N5/926 , H04N5/76 , H04N5/92
CPC分类号： H04N5/9262 , G11B27/032 , G11B2220/90 , G11B27/036 , H04N5/783
摘要： A video signal recording apparatus is capable of compressing the amount of information of a video signal sequentially containing a plurality of pictures correlated to one another. In this compression, the video signal recording apparatus can selectively assume an intrapicture coding mode for executing compression by using only a correlation within each of pictures of the video signal and an interpicture coding mode for executing compression by using a correlation between a plurality of pictures of the video signal. When a video signal the amount of information of which is compressed is to be recorded on a recording medium, the video signal recording apparatus starts recording with a video signal compressed in the intrapicture coding mode. When a video signal compressed by variable-length coding is to be recorded while sequentially forming a multiplicity of tracks on a recording medium, the video signal recording apparatus begins recording a picture to be recorded immediately after the start of recording, at the forefront of the tracks.
摘要翻译：视频信号记录装置能够压缩顺序地包含彼此相关的多个图像的视频信号的信息量。在该压缩中，视频信号记录装置可以选择性地采用用于通过仅使用视频信号的每个图像内的相关性和用于通过使用图像信号的多个图像之间的相关性来执行压缩的图像间编码模式来执行压缩的图像间编码模式视频信号。当视频信号被压缩的信息被记录在记录介质上时，视频信号记录装置开始以以图像内编码模式压缩的视频信号进行记录。当在记录介质上顺序地形成多个轨道的同时记录通过可变长度编码压缩的视频信号时，视频信号记录装置开始在记录开始之后立即记录要记录的图像，位于记录介质的最前沿轨道

72. 发明授权

US5724476A Method and apparatus for extending and reproducing compressed moving pictures 失效
标题翻译：用于扩展和再现压缩的运动图像的方法和装置
公开(公告)号：US5724476A
公开(公告)日：1998-03-03
申请号：US563624
申请日：1995-11-28
申请人： Mitsuyoshi Suzuki
发明人： Mitsuyoshi Suzuki
IPC分类号： H04N5/765 , H04N5/783 , H04N5/92 , H04N5/926 , H04N19/00 , H04N19/102 , H04N19/132 , H04N19/134 , H04N19/172 , H04N19/186 , H04N19/196 , H04N19/423 , H04N19/44 , H04N19/503 , H04N5/917 , H04N5/91
CPC分类号： H04N5/9262 , H04N5/783
摘要： A method and apparatus for reproducing normally a picture of a recording system by operating the recording system and a display system asynchronously, and by holding and/or skipping a picture frame or field of the display system. The method for extending and reproducing compressed moving pictures includes asynchronizing data transferring a clock from a recording unit with a display system clock and then setting a hold or skip threshold which is in advance of a recording system time by a first predetermined frame (field) time. A timing is corrected by holding or skipping the display system time for one frame (field) when a display system time becomes equal to the hold or skip threshold. Frames (fields) of the display system which are closest to the recording system time are then displayed when the display system time is held or skipped for the one frame (field).
摘要翻译：一种用于通过不同步地操作记录系统和显示系统以及通过保持和/或跳过显示系统的画面或场来正常再现记录系统的画面的方法和装置。用于扩展和再现压缩的运动图像的方法包括使用显示系统时钟从记录单元传送时钟的异步数据，然后将记录系统时间之前的保持或跳过阈值设置为第一预定帧（场）时间。当显示系统时间等于保持或跳过阈值时，通过保持或跳过一帧（场）的显示系统时间来校正定时。然后，当对于一帧（场）保持或跳过显示系统时间时，显示最接近记录系统时间的显示系统的帧（场）。

73. 发明授权

US5617502A System and method synchronizing audio and video digital data signals during playback 失效
标题翻译：在播放期间同步音频和视频数字数据信号的系统和方法
公开(公告)号：US5617502A
公开(公告)日：1997-04-01
申请号：US620637
申请日：1996-03-22
申请人： Jeffrey Ort , Daniel Daum
发明人： Jeffrey Ort , Daniel Daum
IPC分类号： H04N5/926 , H04N21/2368 , H04N21/434 , H04N5/76 , H04N5/928
CPC分类号： H04N21/4341 , H04N21/4305 , H04N21/4307 , H04N21/44004 , H04N5/9265 , H04N5/9262
摘要： A method and system for synchronizing audio and video data signals that are in a signal format wherein the audio and video data signals are not interleaved but originate from separate sources and arrive at a constant frame rate. In one embodiment, the audio and video data signals are in an Moving Pictures Expert Group (MPEG) format. Portions of the novel system operate within the hardware of a video processor unit and portions of the novel system operate within a software driver of a computer system that receives the audio and video data signals. Audio and video data signals are referenced by a presentation time stamp (e.g., VPTS for video and APTS for audio) encoded in the data. Using these stamps, the novel system (via the video processor unit) determines if the video signal is ahead or behind the audio signal by a small number of frames, x, and if so, the video processor unit either pauses or skips frames in its video display unit hardware to regain synchronization. If the video processor unit determines that the video signal is ahead or behind the audio signal by more than x frames, a software driver operating on the computer system is informed of the difference and the software driver instructs the video processor unit to skip or pause frames within its system parsing unit hardware using a host interrupt driven mechanism to regain synchronization. Using this method, the digital video signal is effectively synchronized to the reference digital audio signal.
摘要翻译：一种用于同步处于信号格式的音频和视频数据信号的方法和系统，其中音频和视频数据信号不是交错的，而是源于单独的源并且以恒定的帧速率到达。在一个实施例中，音频和视频数据信号是运动图像专家组（MPEG）格式。新颖系统的部分在视频处理器单元的硬件内操作，并且新颖系统的部分在接收音频和视频数据信号的计算机系统的软件驱动器内操作。音频和视频数据信号由编码在数据中的演示时间标记（例如，用于视频的VPTS和用于音频的APTS）引用。使用这些邮票，新系统（通过视频处理器单元）确定视频信号是否在音频信号之前或之后的少量帧x，如果是，则视频处理器单元暂停或跳过其中的帧视频显示单元硬件重新获得同步。如果视频处理器单元确定视频信号在音频信号之前或之后超过x帧，则在计算机系统上操作的软件驱动程序被通知该差异，并且软件驱动器指示视频处理器单元跳过或暂停帧在其系统解析单元硬件中使用主机中断驱动机制重新获得同步。使用该方法，数字视频信号被有效地同步到参考数字音频信号。

74. 发明授权

US5592229A Video signal interframe predictive coding apparatus using motion detection 失效
标题翻译：使用运动检测的视频信号帧间预测编码装置
公开(公告)号：US5592229A
公开(公告)日：1997-01-07
申请号：US453345
申请日：1995-05-30
申请人： Kenji Sugiyama
发明人： Kenji Sugiyama
IPC分类号： H04N19/50 , G06T9/00 , H04N5/14 , H04N5/926 , H04N19/103 , H04N19/107 , H04N19/137 , H04N19/169 , H04N19/182 , H04N19/196 , H04N19/423 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/80 , H04N19/91 , H04N7/32
CPC分类号： H04N5/144 , H04N19/503 , H04N19/61 , H04N5/145 , H04N5/9262 , H04N19/30
摘要： A video signal is coded by intraframe coding. The coded video signal is then decoded by intraframe/field decoding. A decoded local video signal is generated, which corresponds to a specific region in one frame of a video signal coded one frame prior to the video signal. A first motion signal is generated, which indicates motion of pictures in both the decoded video signal and the decoded local video signal. The motion signal is then subtracted from the video signal to generate a predictive error signal which is then coded by intraframe coding. The coded video signal and the coded predictive error signal are decoded by intraframe/field-decoding. A second motion signal is generated, which indicates motion of pictures in both the decoded video signal and a video signal decoded one frame prior to a video signal to be reproduced. The decoded predictive error signal and the second motion signal are added to each other to reproduce the video signal.
摘要翻译：视频信号通过帧内编码进行编码。然后通过帧内/场解码对经编码的视频信号进行解码。生成解码的本地视频信号，其对应于在视频信号之前一帧编码的视频信号的一帧中的特定区域。生成第一运动信号，其指示解码视频信号和解码的本地视频信号中的图像的运动。然后从视频信号中减去运动信号，以产生预测误差信号，然后通过帧内编码进行编码。编码视频信号和编码预测误差信号通过帧内/场解码进行解码。生成第二运动信号，其指示在要再现的视频信号之前解码的视频信号和解码的一帧中的图像的图像的运动。解码的预测误差信号和第二运动信号彼此相加以再现视频信号。

75. 发明授权

US5504529A Video signal coding apparatus and decoding apparatus 失效
标题翻译：视频信号编码装置和解码装置
公开(公告)号：US5504529A
公开(公告)日：1996-04-02
申请号：US452533
申请日：1995-05-30
申请人： Kenji Sugiyama
发明人： Kenji Sugiyama
IPC分类号： H04N19/50 , G06T9/00 , H04N5/14 , H04N5/926 , H04N19/103 , H04N19/107 , H04N19/137 , H04N19/169 , H04N19/182 , H04N19/196 , H04N19/423 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/80 , H04N19/91 , H04N7/36 , H04N7/46
CPC分类号： H04N5/144 , H04N19/503 , H04N19/61 , H04N5/145 , H04N5/9262 , H04N19/30
摘要： A video signal is coded by intraframe coding. The coded video signal is then decoded by intraframe/field decoding. A decoded local video signal is generated which corresponds to a specific region in one frame of a video signal coded one frame prior to the video signal. A first motion signal is generated which indicates motion of pictures in both the decoded video signal and the decoded local video signal. The motion signal is then subtracted from the video signal to generate a predictive error signal which is then coded by intraframe coding. The coded video signal and the coded predictive error signal are decoded by intraframe/field-decoding. A second motion signal is generated which indicates motion of pictures in both the decoded video signal and a video signal decoded one frame prior to a video signal to be reproduced. The decoded predictive error signal and the second motion signal are added to each other to reproduce the video signal.
摘要翻译：视频信号通过帧内编码进行编码。然后通过帧内/场解码对经编码的视频信号进行解码。产生对应于在视频信号之前一帧编码的视频信号的一帧中的特定区域的解码的本地视频信号。产生指示解码视频信号和解码的本地视频信号中的图像的运动的第一运动信号。然后从视频信号中减去运动信号，以产生预测误差信号，然后通过帧内编码进行编码。编码视频信号和编码预测误差信号通过帧内/场解码进行解码。生成第二运动信号，其指示在要再现的视频信号之前解码的视频信号和解码的一帧中的图像的图像的运动。解码的预测误差信号和第二运动信号彼此相加以再现视频信号。

76. 发明授权

US5412430A Image coding method and image coding apparatus 失效
标题翻译：图像编码方法和图像编码装置
公开(公告)号：US5412430A
公开(公告)日：1995-05-02
申请号：US238334
申请日：1994-05-04
申请人： Atsushi Nagata
发明人： Atsushi Nagata
IPC分类号： G06T9/00 , H04N5/926 , H04N19/00 , H04N19/103 , H04N19/137 , H04N19/196 , H04N19/46 , H04N19/50 , H04N19/503 , H04N19/51 , H04N19/573 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/85 , H04N7/137
CPC分类号： H04N5/9264 , H04N19/105 , H04N19/112 , H04N19/124 , H04N19/137 , H04N19/152 , H04N19/172 , H04N19/46 , H04N19/577 , H04N19/58 , H04N19/61 , H04N5/9262 , H04N19/13 , H04N19/146 , H04N19/91
摘要： In high efficiency coding of a motion image signal in transmission or recording of the motion image signal, plural prediction signals are determined by independently compensating a motion of reproduction signals of plural frames positioned before a frame to be coded. A linear combination of these prediction signals is used as derived a prediction signal. An error of the frame to be coded and the derived prediction signal is coded. As a result, the distortion of the prediction signal, that is, the prediction error is reduced, and the coding efficiency is enhanced.
摘要翻译：在运动图像信号的运动图像信号的高效率编码中，通过独立地补偿位于要编码的帧之前的多个帧的再现信号的运动来确定多个预测信号。这些预测信号的线性组合被用作导出预测信号。要编码的帧的误差和导出的预测信号被编码。结果，预测信号的失真，即预测误差降低，编码效率提高。

77. 发明授权

US5249048A Interframe/interfield predictive encoding system 失效
标题翻译： INTERFRAME / INTERFIELD预测编码系统
公开(公告)号：US5249048A
公开(公告)日：1993-09-28
申请号：US821935
申请日：1992-01-16
申请人： Kenji Sugiyama
发明人： Kenji Sugiyama
IPC分类号： H04N19/50 , G06T9/00 , H04N5/92 , H04N5/926 , H04N19/423 , H04N19/426 , H04N19/503 , H04N19/85
CPC分类号： H04N19/503 , H04N5/9262
摘要： An interframe/interfield encoding system is for coding an incoming video signal having a successive specific number of dependent frames/fields, and independent frames/fields located anterior and posterior to the dependent frames/fields on a time axis. The system has a predictor for generating prediction errors of the dependent frames/fields by the independent frames/fields and an encoder for coding the independent frames/fields and the prediction errors. The system also has a delay section delays coding the posterior independent frame/field by the specific number of dependent frames/fields on the time axis to the incoming video signal and a controller, responsive to the delaying, controls the encoder to encode the posterior independent frame/field so as to follow the coding of the prediction errors. The posterior independent frame/field, without being delayed, is employed for generation of the prediction errors.

78. 发明授权

US5122873A Method and apparatus for selectively encoding and decoding a digital motion video signal at multiple resolution levels 失效
标题翻译：用于以多个分辨率级选择性地编码和解码数字运动视频信号的方法和装置
公开(公告)号：US5122873A
公开(公告)日：1992-06-16
申请号：US657708
申请日：1991-02-19
申请人： Stuart J. Golin
发明人： Stuart J. Golin
IPC分类号： H04N7/32 , G06T9/00 , H04N5/85 , H04N5/926 , H04N7/24 , H04N7/26 , H04N7/50 , H04N9/806
CPC分类号： H04N19/186 , H04N19/00 , H04N19/10 , H04N19/50 , H04N19/53 , H04N19/61 , H04N19/63 , H04N5/9262 , H04N7/24 , H04N9/8066 , H04N5/85
摘要： At least one selected image of a digital video signal is encoded at multiple levels of resolution. For each level of resolution, a correction image is formed by subtracting the value of each pixel in a reference image of that resolution level from the value of each corresponding pixel in the selected image of that resolution level. The correction image is quantized and encoded. A decoder decodes the encoded quantized correction image for each resolution level. The value of each pixel in the decoded correction image having the lowest resolution is added to the value of each corresponding pixel of a reference image having the same resolution to form a result image of the lowest resolution. This result image is expanded to the next higher level of resolution. The value of each pixel in the expanded result image is added to the value of each corresponding pixel in the decoded correction image of the same resolution level to form a result image of that resolution level. This process is continued until each pixel value in the expanded result image, which has been expanded to full resolution, is added to the value of each corresponding pixel in the full resolution decoded correction image to form the final image which is stored in memory for subsequence display.
摘要翻译：数字视频信号的至少一个所选择的图像被以多个分辨率级别编码。对于每个分辨率级别，通过从该分辨率级别的所选图像中的每个相应像素的值中减去该分辨率级别的参考图像中的每个像素的值来形成校正图像。对校正图像进行量化和编码。解码器对每个分辨率级别的编码量化校正图像进行解码。具有最低分辨率的解码校正图像中的每个像素的值被添加到具有相同分辨率的参考图像的每个对应像素的值，以形成最低分辨率的结果图像。该结果图像扩展到下一个更高的分辨率。将扩展结果图像中的每个像素的值添加到相同分辨率级别的解码校正图像中的每个相应像素的值，以形成该分辨率级别的结果图像。继续该处理，直到已经扩展为全分辨率的扩展结果图像中的每个像素值被添加到全分辨率解码校正图像中的每个相应像素的值，以形成存储在存储器中以用于子序列的最终图像显示。

79. 发明授权

US4969039A Image processing system operable in cooperation with a recording medium 失效
标题翻译：图像处理系统，与记录介质协同工作
公开(公告)号：US4969039A
公开(公告)日：1990-11-06
申请号：US213534
申请日：1988-06-30
申请人： Toshio Koga , Junichi Ohki , Mutsumi Ohta , Yoshihiro Miyamoto , Hideto Kunhiro
发明人： Toshio Koga , Junichi Ohki , Mutsumi Ohta , Yoshihiro Miyamoto , Hideto Kunhiro
IPC分类号： G06T9/00 , H04N5/85 , H04N5/926 , H04N7/26 , H04N7/36
CPC分类号： H04N19/142 , H04N19/179 , H04N19/503 , H04N19/87 , H04N5/9262 , H04N5/85
摘要： In an image processing system for use in processing a sequence of image signals carrying a moving image, the image signal sequence is divided into a sequence of partial image signals each of which carries a scene subsequence defined by scene changes. A background signal generator determines a background portion of the moving image by monitoring a whole of each partial image signal and produces a background signal. The background signal is coded by a coder prior to a sequence of error signals resulting from predictive coding of each partial signal. During prediction of the background signal, the error signals may be rendered to zero in the coder. The background signal may be either determined at every picture element or at every block composed of a plurality of picture elements.
摘要翻译：在用于处理携带运动图像的图像信号的序列的图像处理系统中，图像信号序列被划分为每个部分图像信号的序列，每个部分图像信号携带由场景变化定义的场景子序列。背景信号发生器通过监视每个部分图像信号的整体来确定运动图像的背景部分并产生背景信号。在由每个部分信号的预测编码产生的误差信号序列之前，由编码器对背景信号进行编码。在背景信号的预测期间，可以在编码器中使误差信号变为零。可以在每个图像元素处或在由多个图像元素组成的每个块处确定背景信号。

80. 发明授权

US4785349A Digital video decompression system 失效
标题翻译：数字视频解压系统
公开(公告)号：US4785349A
公开(公告)日：1988-11-15
申请号：US104131
申请日：1987-10-05
申请人： John M. Keith , Stuart J. Golin , Allen H. Simon , Brian Astle
发明人： John M. Keith , Stuart J. Golin , Allen H. Simon , Brian Astle
IPC分类号： G06T9/00 , H03M7/42 , H04N1/41 , H04N5/85 , H04N5/926 , H04N7/26 , H04N7/32 , H04N7/36 , H04N9/804 , H04N9/806 , H04N9/808 , H04N11/04 , H04N7/13
CPC分类号： H04N11/042 , H03M7/425 , H04N19/124 , H04N19/50 , H04N19/503 , H04N5/9262 , H04N9/8045 , H04N9/8066 , H04N5/85
摘要： A full motion color digital video signal is compressed, formatted for transmission, recorded on compact disc media and decoded at conventional video frame rates. During compression, regions of a frame are individually analyzed to select optimum fill coding methods specific to each region. Region decoding time estimates are made to optimize compression thresholds. Region descriptive codes conveying the size and locations of the regions are grouped together in a first segment of a data stream. Region fill codes conveying pixel amplitude indications for the regions are grouped together according to fill code type and placed in other segments of the data stream. The data stream segments are individually variable length coded according to their respective statistical distributions and formatted to form data frames. The number of bytes per frame is dithered by the addition of auxiliary data determined by a reverse frame sequence analysis to provide an average number selected to minimize pauses of the compact disc during playback thereby avoiding unpredictable seek mode latency periods characteristic of compact discs. A decoder includes a variable length decoder responsive to statistical information in the code stream for separately variable length decoding individual segments of the data stream. Region location data is derived from region descriptive data and applied with region fill codes to a plurality of region specific decoders selected by detection of the fill code type (e.g., relative, absolute, dyad and DPCM) and decoded region pixels are stored in a bit map for subsequent display.
摘要翻译：全运动彩色数字视频信号被压缩，格式化用于传输，记录在光盘介质上并以常规视频帧速率进行解码。在压缩期间，单独地分析帧的区域以选择对于每个区域特定的最佳填充编码方法。进行区域解码时间估计以优化压缩阈值。将区域的尺寸和位置的区域描述代码分组在数据流的第一段中。传送区域的像素幅度指示的区域填充代码根据填充代码类型分组在一起并放置在数据流的其他段中。数据流段根据各自的统计分布进行单独变长编码，并进行格式化以形成数据帧。通过添加由反向帧序列分析确定的辅助数据来提供每帧的字节数，以提供所选择的平均数，以在重放期间最小化光盘的暂停，从而避免光盘特征的不可预测的寻道模式等待时间周期。解码器包括响应于代码流中的统计信息的可变长度解码器，用于单独变长数据流解码数据流的各个段。区域位置数据从区域描述数据导出，并且通过区域填充码应用于通过检测填充码类型（例如，相对，绝对，二进制和DPCM）选择的多个区域特定解码器，并将解码的区域像素存储在位中地图以供后续显示。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式