公开(公告)号：US06850694B1

公开(公告)日：2005-02-01

申请号：US09640645

申请日：2000-08-18

申请人： Eiji Moro ,  Ken Sodeyama ,  Hiroyuki Hori ,  Katsuyuki Watanabe ,  Akifumi Tabata

发明人： Eiji Moro ,  Ken Sodeyama ,  Hiroyuki Hori ,  Katsuyuki Watanabe ,  Akifumi Tabata

IPC分类号： H04N5/765 ,  H04N5/7826 ,  H04N5/783 ,  H04N5/95 ,  H04N5/956 ,  H04N9/804 ,  H04N9/896

CPC分类号： H04N9/896 ,  H04N5/78263 ,  H04N5/783 ,  H04N9/8042

摘要： The present invention relates to a video signal processing apparatus for outputting an inputted video signal after subjecting the video signal to time axis correction, particularly to a video signal processing apparatus preferable in the case of subjecting the video signal to image compression. In the case in which a nonstandard signal is inputted to an image compression circuit of an MPEG2 encoder or the like, a drawback of freezing image or generating block noise or the like is resolved. A time axis correcting circuit stores an input signal to a memory and reads the input signal at a timing delayed from V synchronization of the input signal by a predetermined time period. For that purpose, a read synchronizing signal generator is reset at respective input field. A reset position is set to a position preceding the read V synchronization position by 3H through 10H. It is detected whether the input signal is a non-interlace signal or a field length thereof is deviated from a standard value and in these cases, odd/even order or synchronization timing of a synchronizing signal is corrected. Further, when the input signal is a nonstandard signal, the input signal is outputted without passing through the image compression circuit by a changeover switch.

摘要翻译： 视频信号处理装置本发明涉及一种视频信号处理装置，用于在对视频信号进行时间轴校正之后输出输入的视频信号，特别涉及在对视频信号进行图像压缩的情况下优选的视频信号处理装置。 在将非标准信号输入到MPEG2编码器等的图像压缩电路的情况下，解决图像冻结或产生块噪声等的缺陷。 时间轴校正电路将输入信号存储到存储器，并且以从输入信号的V同步延迟预定时间段的定时读取输入信号。 为此，读取同步信号发生器在相应的输入场复位。 复位位置被设定为读取V同步位置之前的位置3H到10H。 检测输入信号是不是隔行扫描信号还是其场长偏离标准值，在这些情况下，校正同步信号的奇数/偶数阶或同步定时。 此外，当输入信号是非标准信号时，输入信号不通过图像压缩电路通过转换开关输出。

公开(公告)号：US5872605A

公开(公告)日：1999-02-16

申请号：US863894

申请日：1997-05-28

申请人： Tomoyuki Nonaka ,  Akifumi Tabata ,  Hiroyuki Hori ,  Akira Okasaka ,  Masahiro Sasaki ,  Kazuki Ito

发明人： Tomoyuki Nonaka ,  Akifumi Tabata ,  Hiroyuki Hori ,  Akira Okasaka ,  Masahiro Sasaki ,  Kazuki Ito

IPC分类号： H04N9/83 ,  H04N9/64 ,  H04N9/68

CPC分类号： H04N9/646 ,  Y10S348/914

摘要： A video signal processing apparatus includes an equalizer for delaying an input color signal by an adjustable phase retardation. A low pass filter is operative for delaying the input color signal by an adjustable phase retardation. A phase detector is operative for detecting a difference between a phase of an output signal of the equalizer and a phase of an output signal of the low pass filter, and outputting a signal representative of the detected phase difference. The phase retardation provided by the equalizer and the phase retardation provided by the low pass filter are adjusted in response to the output signal of the phase detector to maintain the difference between the phase of the output signal of the equalizer and the phase of the output signal of the low pass filter at a predetermined value, for example, 90 degrees.

摘要翻译： 视频信号处理装置包括用于通过可调节相位延迟来延迟输入颜色信号的均衡器。 低通滤波器用于延迟输入颜色信号的可调相位延迟。 相位检测器用于检测均衡器的输出信号的相位与低通滤波器的输出信号的相位之差，并输出表示检测到的相位差的信号。 由均衡器提供的相位延迟和由低通滤波器提供的相位延迟响应于相位检测器的输出信号进行调整，以保持均衡器的输出信号的相位与输出信号的相位之差 的低通滤波器处于预定值，例如90度。

公开(公告)号：US07782370B2

公开(公告)日：2010-08-24

申请号：US11933577

申请日：2007-11-01

申请人： Kanako Sugawara ,  Akifumi Tabata

发明人： Kanako Sugawara ,  Akifumi Tabata

IPC分类号： H04N5/235 ,  H04N9/083

CPC分类号： H04N9/045 ,  H04N5/3456 ,  H04N5/3458 ,  H04N5/347

摘要： According to the present invention, an imaging unit, comprising an imaging device, an imaging device driver, and a signal-processing block, is provided. The imaging device has pixels which are arranged in a first direction. The pixels are alternately and repeatedly covered with N1 kinds of different color filters along the first direction. The imaging device driver drives the imaging device. N1*N2 pixels successively arranged in the first direction are defined as a pixel block. The imaging device driver orders the N1 pixels covered with the different color filters in the pixel block to output pixel signals when a first output method with thinning out is carried out. The signal-processing block averages the pixel signals output from a plurality of the pixel blocks for every color of the color filter

摘要翻译： 根据本发明，提供一种包括成像装置，成像装置驱动器和信号处理块的成像单元。 成像装置具有沿第一方向布置的像素。 这些像素沿着第一方向交替且重复地覆盖有N1种不同的滤色器。 成像装置驱动器驱动成像装置。 将沿第一方向连续布置的N1 * N2像素定义为像素块。 成像装置驱动器在执行具有稀疏的第一输出方法时，对像素块中的不同滤色器覆盖的N1个像素进行排序以输出像素信号。 信号处理块对于滤色器的每种颜色对从多个像素块输出的像素信号进行平均

公开(公告)号：US07619195B2

公开(公告)日：2009-11-17

申请号：US11553499

申请日：2006-10-27

申请人： Koichi Sato ,  Akifumi Tabata

发明人： Koichi Sato ,  Akifumi Tabata

IPC分类号： H01J27/00

CPC分类号： H04N9/045 ,  H04N5/3452 ,  H04N5/3456 ,  H04N5/3458 ,  H04N5/3728

摘要： An imaging device driver that drives an imaging device, comprising a controller, is provided. The imaging device has the light receiving surface divided into a plurality of pixel blocks. Each pixel block has a plurality of pixels. The pixel generates a pixel signal according to received light amount. The imaging device generates an image signal. The image signal is formed by a plurality of the pixel signals. The image signal corresponds to an optical image of an object during a single frame period. The controller causes the pixel located at a first and a second area in the pixel block to generate the pixel signal in a first and a second frame period, respectively, if the imaging device is driven to output the image signal while thinning out the pixel signals. The second frame period follows the first frame period.

摘要翻译： 提供了一种驱动包括控制器的成像装置的成像装置驱动器。 成像装置具有被分成多个像素块的光接收表面。 每个像素块具有多个像素。 像素根据接收到的光量生成像素信号。 成像装置产生图像信号。 图像信号由多个像素信号形成。 图像信号对应于在单个帧周期期间的对象的光学图像。 如果成像装置被驱动以输出图像信号，同时使像素信号变薄，则控制器使得位于像素块中的第一和第二区域处的像素分别在第一和第二帧周期中产生像素信号 。 第二帧周期遵循第一帧周期。