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11 条记录 (耗时 0.022 秒)

    Directed Interpolation and Data Post-Processing
    2.
    发明申请
    Directed Interpolation and Data Post-Processing 有权
    定向插值和数据后处理

    公开(公告)号：US20120026288A1

    公开(公告)日：2012-02-02

    申请号：US13255308

    申请日：2010-04-20

    申请人： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin Stec

    发明人： Alexandros Tourapis ,  Athanasios Leontaris ,  Peshala V. Pahalawatta ,  Kevin Stec

    IPC分类号： H04N13/00 ,  H04N7/26

    CPC分类号： H04N19/80 ,  H04N13/10 ,  H04N13/161 ,  H04N13/172 ,  H04N13/178 ,  H04N13/218 ,  H04N19/17 ,  H04N19/172 ,  H04N19/40 ,  H04N19/423 ,  H04N19/587 ,  H04N19/597 ,  H04N19/70 ,  H04N19/86

    摘要： An encoding device evaluates a plurality of processing and/or post-processing algorithms and/or methods to be applied to a video stream, and signals a selected method, algorithm, class or category of methods/algorithms either in an encoded bit-stream or as side information related to the encoded bitstream. A decoding device or post-processor utilizes the signaled algorithm or selects an algorithm/method based on the signaled method or algorithm. The selection is based, for example, on availability of the algorithm/method at the decoder/post-processor and/or cost of implementation. The video stream may comprise, for example, downsampled multiplexed stereoscopic images and the selected algorithm may include any of upconversion and/or error correction techniques that contribute to a restoration of the downsampled images.

    摘要翻译： 编码装置评估要应用于视频流的多个处理和/或后处理算法和/或方法，并且以编码的比特流或以编码的比特流或者编码比特流的方式/算法，类别或类别的方法/ 作为与编码比特流相关的副信息。 解码装置或后处理器利用信号通知的算法或基于信号方法或算法选择算法/方法。 该选择基于例如在解码器/后处理器和/或执行成本上的算法/方法的可用性。 视频流可以包括例如下采样多路复用立体图像，并且所选择的算法可以包括有助于恢复下采样图像的任何上变频和/或纠错技术。

    Apparatus and method for high-speed video tape duplication from master disk
    7.
    发明授权
    Apparatus and method for high-speed video tape duplication from master disk 失效
    从主盘高速录像带复制的装置和方法

    公开(公告)号：US5260800A

    公开(公告)日：1993-11-09

    申请号：US883066

    申请日：1992-05-08

    申请人： Albert G. Sturm ,  Kevin Stec ,  David H. Rubenstein

    发明人： Albert G. Sturm ,  Kevin Stec ,  David H. Rubenstein

    IPC分类号： G11B7/28 ,  G11B20/10 ,  G11B27/022 ,  G11B27/024 ,  G11B27/031 ,  G11B27/032 ,  H04N5/92 ,  H04N5/94 ,  H04N9/79 ,  H04N9/802 ,  H04N9/83 ,  H04N9/835 ,  H04N9/88 ,  H04N9/80

    CPC分类号： G11B20/10 ,  G11B27/022 ,  G11B27/031 ,  G11B7/28 ,  H04N5/94 ,  H04N9/79 ,  H04N9/831 ,  G11B2220/20 ,  G11B2220/2587 ,  G11B2220/90 ,  G11B27/024 ,  G11B27/032 ,  H04N5/9206 ,  H04N9/802 ,  H04N9/835 ,  H04N9/88

    摘要： A laser video disk master is operated at 2.times. speed for duplicating video information to be recorded in VHS format. Two last disk video players are modified to operate in synchronism in order to multiplex from one to the other in duplicating video programs of length equal to the two recorded disks. The 2.times. frequency NTSC format video output signal is then demodulated, drop out detection is performed, and the digitally-encoded stereo audio information is separated, error corrected, and converted by digital to analog (D/A) conversion to left and right channels of stereo analog information. The left and right channels of audio information are presented simultaneously to an FM modulator for presentation to rotating video heads and to a 2.times. Dolby processor for presentation to linear heads. The demodulated 2.times. video information is converted to digital information by an analog to digital (A/D) converter and then time-base corrected and drop out compensated. New sync and blanking signals in digital form are switched into the digitized video signal, and digital color-under chroma processing and digital luminance noise reduction processing are performed. The 2.times. composite time base corrected and color-under processed video signal is then D/A converted to analog form for 2.times. speed duplication of VHS cassette copies. With suitable buffering, the signal may be presented to a bank of VHS recorders.

    摘要翻译： 激光视频磁盘主机以2x速度运行，用于复制要以VHS格式记录的视频信息。 两个最后的磁盘视频播放器被修改为同步操作，以便在复制长度等于两个记录的磁盘的视频节目时从一个复制到另一个。 然后解调2倍频NTSC格式视频输出信号，执行丢失检测，数字编码立体声音频信息被分离，纠错，并通过数模转换（D / A）转换为左右声道 立体声模拟信息。 音频信息的左声道和右声道同时呈现给FM调制器，以呈现给旋转视频头和用于呈现到线性头的2x杜比处理器。 解调的2x视频信息通过模数（A / D）转换器转换为数字信息，然后进行时基校正和退出补偿。 以数字形式将新的同步和消隐信号切换为数字化视频信号，并进行数字彩色色处理和数字亮度降噪处理。 然后将2x复合时基校正和彩色处理视频信号D / A转换为模拟形式，用于速度复制VHS盒式复印件。 通过适当的缓冲，信号可以呈现给一组VHS记录器。

    Method of decreasing delay through frame based format converters
    8.
    发明授权
    Method of decreasing delay through frame based format converters 失效
    通过基于帧的格式转换器减少延迟的方法

    公开(公告)号：US06836294B2

    公开(公告)日：2004-12-28

    申请号：US09820443

    申请日：2001-03-29

    申请人： Jon Scott Miller ,  Kevin Stec

    发明人： Jon Scott Miller ,  Kevin Stec

    IPC分类号： H04N701

    CPC分类号： H04N7/0135 ,  H04N5/46 ,  H04N7/012 ,  H04N21/440218

    摘要： An apparatus converts an input video signal having a first format into an output video signal having a second format. A formatter receives the first video signal and divides each field or frame into an active video top and bottom half. Two format converters receive and process the two halves of the active video images from the formatter and provide respective halves of the active video image for rejoining into the second format. A demultiplexer receives the two halves of the active video images from the two format converters and combines the active video upper and active video lower halves of the fields or frames into the output video signal having a second format.

    摘要翻译： 一种装置将具有第一格式的输入视频信号转换为具有第二格式的输出视频信号。 格式化器接收第一视频信号，并将每个场或帧划分成活动视频的顶部和底部。 两个格式转换器从格式化器接收和处理活动视频图像的两半，并且提供用于重新加入第二格式的活动视频图像的相应的一半。 解复用器从两个格式转换器接收有效视频图像的两半，并将场或帧的有效视频上和下半部分组合成具有第二格式的输出视频信号。

    Information security system
    10.
    发明授权
    Information security system 失效
    信息安全系统

    公开(公告)号：US4581765A

    公开(公告)日：1986-04-08

    申请号：US466007

    申请日：1983-02-14

    申请人： Kevin Stec

    发明人： Kevin Stec

    IPC分类号： H04K1/00 ,  H04K1/04 ,  H04N7/167

    CPC分类号： H04K1/04

    摘要： A system is disclosed for encoding and decoding the audio signal portion of a television signal to prevent unauthorized reception of the audio signal. At the encoding stage, the audio signal is applied to a multiplier which combines the audio signal with a programmable carrier having a frequency controlled by a frequency selection protocol to produce an output signal which is spectrally inverted from the original audio signal. The spectrally inverted signal from the multiplier is applied to a sideband filter which filters out the upper sideband of the spectrally inverted signal to produce an encoded signal having the same bandwidth as that of the original audio signal. At the decoding stage, the carrier signal is phase-shifted to compensate for phase delay imparted to the encoded signal in the encoding process and combined with the encoded signal to decode the encoded signal.

    摘要翻译： 公开了一种用于对电视信号的音频信号部分进行编码和解码以防止未经授权的音频信号接收的系统。 在编码阶段，音频信号被施加到乘法器，该乘法器将音频信号与具有由频率选择协议控制的频率的可编程载波组合，以产生与原始音频信号频谱反相的输出信号。 来自乘法器的频谱反转信号被施加到边带滤波器，其滤除频谱反转信号的上边带以产生具有与原始音频信号相同带宽的编码信号。 在解码阶段，载波信号被相移以补偿在编码处理中赋予编码信号的相位延迟，并与编码信号组合以对编码信号进行解码。