利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

100 条记录 (耗时 0.029 秒)

    Moving picture decoding apparatus having three line buffers controlled to store and provide picture data of different resolutions
    1.
    发明授权
    Moving picture decoding apparatus having three line buffers controlled to store and provide picture data of different resolutions 失效
    具有三个行缓冲器的运动图像解码装置被控制以存储和提供不同分辨率的图像数据

    公开(公告)号：US5646694A

    公开(公告)日：1997-07-08

    申请号：US554966

    申请日：1995-11-13

    申请人： Kojiro Horita ,  Junichi Kimura ,  Hirotaka Hara ,  Yutaka Okunoki

    发明人： Kojiro Horita ,  Junichi Kimura ,  Hirotaka Hara ,  Yutaka Okunoki

    IPC分类号： H04N19/00 ,  G06T3/40 ,  G06T9/00 ,  G09G5/42 ,  H03M7/00 ,  H04N5/46 ,  H04N19/423 ,  H04N19/426 ,  H04N7/01

    CPC分类号： G09G5/42 ,  H04N5/46 ,  H04N7/0122

    摘要： A picture decoding apparatus has a memory for storing decoded picture data, three line buffers for temporarily storing picture data read from the memory, and a line buffer controller. Two of the three line buffers are selected sequentially and cyclically, and their operation modes are changed over to the writing mode, and decoded picture data read from the memory is stored sequentially in the two line buffers. The two line buffers are changed over from the writing mode to the reading mode sequentially and cyclically in the same order as that in which the two line buffers selected sequentially and cyclically were changed over to the writing mode, and data for one line is read sequentially from the two line buffers. While an earlier-selected one of the selected two line buffers is changed over to the reading mode and picture data for the former half of one line stored in the line buffer is read out therefrom, the remaining line buffer is changed over to the writing mode and picture data for the former half of a subsequent one line is stored therein. While a later-selected one of the two selected line buffers is changed over to the reading mode and picture data for the latter half of the said one line stored therein is read out therefrom, the earlier-selected line buffer is changed over to the writing mode and picture data for the latter half of the subsequent line is stored therein.

    摘要翻译： 图像解码装置具有用于存储解码图像数据的存储器，用于临时存储从存储器读取的图像数据的三行缓冲器和行缓冲器控制器。 三个行缓冲器中的两个被顺序地和周期性地选择，并且它们的操作模式被切换到写入模式，并且从存储器读取的解码图像数据顺序存储在两个行缓冲器中。 两行缓冲器按顺序依次循环地从写入模式切换到读取模式，并且顺序地循环地按顺序选择两个行缓冲器循环地切换到写入模式，并且顺序地读取一行的数据 从两行缓冲区。 虽然选择的两行缓冲器中的较早选择的一个被切换到读取模式，并且从存储在行缓冲器中的一行的前一半的图像数据被读出，但是剩余的行缓冲器被切换到写入模式 并存储其后一行的前半部分的图像数据。 虽然两个所选行缓冲器中的稍后选择的一个被改变到读取模式，并且从其中读出存储在其中的所述一行的后半部分的图像数据，但是较早选择的行缓冲器被切换到写入 后续行的后半部分的模式和图像数据被存储在其中。

    Image output apparatus and image decoder
    2.
    发明授权
    Image output apparatus and image decoder 失效
    图像输出装置和图像解码器

    公开(公告)号：US6154202A

    公开(公告)日：2000-11-28

    申请号：US3466

    申请日：1998-01-05

    申请人： Hirotaka Hara ,  Tadashi Saitoh ,  Junichi Kimura ,  Yutaka Okunoki

    发明人： Hirotaka Hara ,  Tadashi Saitoh ,  Junichi Kimura ,  Yutaka Okunoki

    IPC分类号： H03M7/00 ,  G06T1/60 ,  G06T9/00 ,  G09G5/18 ,  H03M7/30 ,  G09G5/00

    CPC分类号： G09G5/18 ,  G09G2340/02

    摘要： An image output apparatus capable of realizing asynchronous data access by a host controller in response to an image data transfer request from the host controller, by adding a minimum amount of circuitry to the image output apparatus without using an external data buffer. The image output apparatus includes: a storage device for storing image data; a display circuit for sequentially reading the image data from the storage device and converting the image data into image data capable of being displayed; a timing controller for controlling the operation timing of the display circuit; and an output circuit for changing an operation mode of the timing controller in response to a data transfer request from the host controller and allowing the image data corresponding in amount to the data transfer request to be outputted asynchronously.

    摘要翻译： 一种图像输出装置，其能够通过在不使用外部数据缓冲器的情况下将最小量的电路添加到图像输出装置，来实现主机控制器响应于来自主机控制器的图像数据传送请求的异步数据访问。 图像输出装置包括：存储图像数据的存储装置; 用于从存储装置顺序读取图像数据并将图像数据转换成能够显示的图像数据的显示电路; 定时控制器，用于控制显示电路的操作定时; 以及输出电路，用于响应于来自主机控制器的数据传送请求而改变定时控制器的操作模式，并允许异步地输出与数据传送请求相对应的图像数据。

    Method for compressing and decompressing moving picture information and video signal processing system
    3.
    发明授权
    Method for compressing and decompressing moving picture information and video signal processing system 失效
    压缩和解压缩运动图像信息和视频信号处理系统的方法

    公开(公告)号：US06373892B1

    公开(公告)日：2002-04-16

    申请号：US08554965

    申请日：1995-11-13

    申请人： Toru Ichien ,  Junichi Kimura ,  Tadashi Saitoh ,  Yutaka Okunoki

    发明人： Toru Ichien ,  Junichi Kimura ,  Tadashi Saitoh ,  Yutaka Okunoki

    IPC分类号： H04N1102

    CPC分类号： H04N21/23614 ,  G06T9/007 ,  H04N5/262 ,  H04N5/275 ,  H04N21/4318 ,  H04N21/4348

    摘要： A method for compressing and decompressing moving picture information wherein a key signal is correctly reproduced and coding is efficiently carried out, and a video signal processing system for implementing the method. At the time of coding a video signal, conversion is carried out for make large a distance between an ordinary digitized video signal and a key signal indicative of whether an image indicates background or foreground for data compression. At the time of decoding the coded video signal, the video signal and key signal of the decompressed image are separated based on a predetermined threshold and reverse conversion opposite to the coding mode is carried out. Since the coding is carried out with the ordinary video signal separated from the key signal, the video signal and the key signal can be separated by a suitable threshold from the compressed and then decompressed image and thus the video signal and key signal can be correctly reproduced.

    摘要翻译： 一种用于压缩和解压缩运动图像信息的方法，其中正确地再现了键信号并有效地执行了编码，以及用于实现该方法的视频信号处理系统。 在编码视频信号时，进行转换以使普通数字化视频信号与指示图像是否指示用于数据压缩的背景或前景的键信号之间的距离变大。 在编码视频信号解码时，基于预定阈值分离解压缩图像的视频信号和键信号，并执行与编码模式相反的反向转换。 由于使用与键信号分离的普通视频信号进行编码，所以视频信号和键信号可以从压缩后的解压缩图像中分离合适的阈值，从而可以正确地再现视频信号和键信号 。

    Data distribution server and terminal apparatus
    8.
    发明授权
    Data distribution server and terminal apparatus 有权
    数据分发服务器和终端设备

    公开(公告)号：US07508760B2

    公开(公告)日：2009-03-24

    申请号：US10649702

    申请日：2003-08-28

    申请人： Yasuhiro Akiyama ,  Junichi Kimura ,  Toru Yokoyama

    发明人： Yasuhiro Akiyama ,  Junichi Kimura ,  Toru Yokoyama

    IPC分类号： G01R31/08

    CPC分类号： H04N21/234354 ,  H04N7/17318 ,  H04N21/41407 ,  H04N21/44209 ,  H04N21/4621 ,  H04N21/6131 ,  H04N21/6373 ,  H04N21/8126

    摘要： A radio line is easily influenced in its nature by attenuation or reflection of an electromagnetic wave or the like and the surrounding environment. Due to this fact, a variation of the data transfer speed frequently occurs at the time of image streaming so as to become a hindrance to reproduction of an image at the receiving terminal. A distribution server is provided with a multiplexer for multiplexing information indicating the transmission start time for the image data and a switching unit for switching an image bit rate in response to a request from the receiving terminal. The receiving terminal uses information indicating a transmission start time for the image data, monitors the receiving bit rate and sends out a request for transmission of the most-suitable image bit rate in response to a comparison thereof.

    摘要翻译： 无线电线路通过电磁波等的衰减或反射以及周围的环境容易地影响其性质。 由于这个事实，数据传送速度的变化在图像传送时频繁地发生，从而成为在接收终端再现图像的障碍。 配送服务器设置有多路复用器，用于复用指示图像数据的传输开始时间的信息，以及响应于来自接收终端的请求切换图像比特率的切换单元。 接收终端使用指示图像数据的发送开始时间的信息，监视接收比特率，并响应于其比较发送出最合适的图像比特率的发送请求。

    Bit Stream Recording Medium, Video Encoder, and Video Decoder
    9.
    发明申请
    Bit Stream Recording Medium, Video Encoder, and Video Decoder 有权
    位流记录介质，视频编码器和视频解码器

    公开(公告)号：US20080317125A1

    公开(公告)日：2008-12-25

    申请号：US11659817

    申请日：2004-08-11

    申请人： Tomokazu Murakami ,  Junichi Kimura

    发明人： Tomokazu Murakami ,  Junichi Kimura

    IPC分类号： H04N7/12 ,  H04N5/00

    CPC分类号： H04N19/597 ,  G11B27/105 ,  H04N13/117 ,  H04N13/243

    摘要： A conventional coding method has a problem that for frame-by-frame reverse playback, data must be once decoded in a forward direction and thus a larger volume of data must be processed and a larger volume of memory is required.By recoding a forward predicted picture and a backward predicted picture for a frame in a bit stream, the bit stream can be played back reversely frame by frame easily. By the use of this method for multi-viewpoint video coding, a device that can play back pictures while varying the viewpoint in real time is realized.

    摘要翻译： 传统的编码方法存在的问题是，对于逐帧反向重放，数据必须在向前方向一次解码，因此必须处理更大量的数据，并且需要更大量的存储器。 通过重新编码比特流中的帧的前向预测图像和后向预测图像，可以容易地逐帧地反向地重放比特流。 通过使用这种多视点视频编码方法，实现了可以实时改变视点的同时播放图像的装置。