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7 条记录 (耗时 0.027 秒)

    Method and apparatus for transmitting, encoding and decoding video signal and recording/reproducing method of optical disc
    1.
    发明授权
    Method and apparatus for transmitting, encoding and decoding video signal and recording/reproducing method of optical disc 失效
    用于发送，编码和解码图像信号的方法和装置，以及用于光盘的记录和再现方法

    公开(公告)号：US06614846B1

    公开(公告)日：2003-09-02

    申请号：US09117793

    申请日：1998-12-17

    申请人： Yuji Fujiwara ,  Masakazu Nishino ,  Seiichi Takeuchi ,  Kazuhiro Wake ,  Akifumi Ide ,  Toyohiko Matsuda ,  Masaaki Kobayashi ,  Yoshitomi Nagaoka

    发明人： Yuji Fujiwara ,  Masakazu Nishino ,  Seiichi Takeuchi ,  Kazuhiro Wake ,  Akifumi Ide ,  Toyohiko Matsuda ,  Masaaki Kobayashi ,  Yoshitomi Nagaoka

    IPC分类号： H04B166

    CPC分类号： H04N9/8042 ,  G06T9/008 ,  H04N5/85 ,  H04N9/7973 ,  H04N19/30 ,  H04N19/53

    摘要： The present invention includes a motion vector detector for detecting motion vectors using a first image signal of high resolution; a resolution reducer for creating a second image signal of low resolution from the first image signal; an image signal interpolater for interpolating the second image signal so that it has the same number of pixels as the first image signal, thereby creating an interpolated signal; a differentiator for determining a differential between the first image signal and the interpolated signal; and an encoder for using the motion vectors to high-efficiency-encode the differential signal. Thus, by encoding two types of image signals of different resolutions, the present invention improves the accuracy of the motion vectors during the encoding of the high-resolution signal and reduces the rate after encoding due to the encoding of the differential signal.

    摘要翻译： 本发明包括使用高分辨率的第一图像信号来检测运动矢量的运动矢量检测器; 分辨率降低器，用于从所述第一图像信号产生低分辨率的第二图像信号; 图像信号内插器，用于内插第二图像信号，使得其具有与第一图像信号相同数量的像素，从而产生内插信号; 用于确定第一图像信号和内插信号之间的差分的微分器; 以及用于使用运动矢量对差分信号进行高效编码的编码器。 因此，通过编码不同分辨率的两种类型的图像信号，本发明在高分辨率信号的编码期间提高了运动矢量的精度，并且由于差分信号的编码而降低了编码之后的速率。

    Method and apparatus for producing a binary information for an information transmission
    5.
    发明授权
    Method and apparatus for producing a binary information for an information transmission 失效
    用于产生用于信息传输的二进制信息的方法和装置

    公开(公告)号：US4523181A

    公开(公告)日：1985-06-11

    申请号：US437460

    申请日：1982-10-28

    申请人： Saburo Tazaki ,  Akifumi Ide

    发明人： Saburo Tazaki ,  Akifumi Ide

    IPC分类号： H03M7/00 ,  G11B20/14 ,  H03M7/14 ,  H04L25/49 ,  H03K13/24

    CPC分类号： G11B20/1426

    摘要： Method and apparatus for producing a binary information by a process comprising the steps of: dividing an input binary data sequence which has a predetermined bit cell length into blocks of a first data pattern thereby forming data blocks; converting information of said data blocks of a first data pattern into data blocks of a second data pattern; integrating accumulated charges of said converted data blocks of the second data pattern; and inverting data of a block of said second data pattern at least when said integrated amount is about to exceed a predetermined finite value in the case that an amount of accumulated charge in said second block is not zero, and producing a binary balanced output code from said second data pattern and said inverted data. By using inverted data pattern as necessary along with non-inverted data patterns it is possible to obtain a binary balanced coding wherein the minimum inversion interval is longer than a bit-cell length of the input information data and maximum inversion interval is short.

    摘要翻译： 一种用于通过一种处理产生二进制信息的方法和装置，包括以下步骤：将具有预定位单元长度的输入二进制数据序列划分成第一数据模式的块，从而形成数据块; 将第一数据模式的所述数据块的信息转换为第二数据模式的数据块; 对所述第二数据模式的所述经转换的数据块的累加电荷进行积分; 以及在所述第二块中的累积电荷量不为零的情况下，至少当所述积分量将要超过预定有限值时，反转所述第二数据模式的块的数据，并且产生二进制平衡输出代码 所述第二数据模式和所述反相数据。 通过使用必要的反转数据模式以及非反相数据模式，可以获得二进制平衡编码，其中最小反转间隔长于输入信息数据的位单元长度，并且最大反转间隔短。

    Component video signal magnetic recording and reproducing apparatus including means for expanding and compressing luminance and color difference signals
    6.
    发明授权
    Component video signal magnetic recording and reproducing apparatus including means for expanding and compressing luminance and color difference signals 失效
    分量视频信号磁记录和重放装置包括用于扩展和压缩亮度和色差信号的装置

    公开(公告)号：US4719519A

    公开(公告)日：1988-01-12

    申请号：US714017

    申请日：1985-03-19

    申请人： Akifumi Ide ,  Chojuro Yamamitsu

    发明人： Akifumi Ide ,  Chojuro Yamamitsu

    IPC分类号： G11B20/02 ,  G11B5/027 ,  H04N5/932 ,  H04N9/81 ,  H04N9/825 ,  H04N9/86 ,  H04N9/87 ,  H04N9/893 ,  H04N9/80

    CPC分类号： H04N9/825 ,  H04N5/932 ,  H04N9/87 ,  H04N9/893

    摘要： A video signal recording and reproducing apparatus wherein in the recording mode, a luminance signal and a pair of color difference signals are divided into two groups each to be alloted for each horizontal scan period. The divided luminance signal is expanded along the time axis to such an extent as to exceed slightly the horizontal blanking period and the divided two color difference signals are compressed along the time axis. The time-processed luminance signal and two color difference signals are multiplexed in time division to produce two multiplexed signals lasting for two horizontal scan periods, which are separated, processed and recorded on separate tracks. In the reproducing mode signals reproduced from the two tracks are separately processed and restored into two multiplexed signals, the timing difference between the two multiplexed signals is corrected, the signals are then time reversely converted thereby to obtain a divided luminance signal and two divided color diffference signals, and these divided signals are multiplexed respectively and restored into a continuous luminance signal and a pair of color difference signals.

    摘要翻译： 一种视频信号记录和再现装置，其中在记录模式下，亮度信号和一对色差信号被分成两组，每组分别在每个水平扫描周期中分配。 分割的亮度信号沿着时间轴扩展到稍微超过水平消隐周期的程度，并且分割的两个色差信号沿着时间轴被压缩。 经时间处理的亮度信号和两个色差信号以时分方式被多路复用，以产生持续两个水平扫描周期的两个多路复用信号，它们被分离，处理并记录在单独的轨道上。 在再现模式下，从两个磁道再现的信号被分别处理并恢复为两个多路复用信号，两个复用信号之间的定时差被校正，然后将信号进行时间反向转换，从而获得分割的亮度信号和两个分频色差 信号，并且这些分频信号被分别复用并恢复为连续的亮度信号和一对色差信号。