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    Optical subscriber network system
    61.
    发明申请
    Optical subscriber network system 有权
    光用户网络系统

    公开(公告)号：US20050047790A1

    公开(公告)日：2005-03-03

    申请号：US10783804

    申请日：2004-02-20

    申请人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

    发明人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

    IPC分类号： H04J3/00 ,  H04B10/00 ,  H04B10/27 ,  H04J14/02 ,  H04J14/08 ,  H04L12/18 ,  H04L12/44 ,  H04Q11/00

    CPC分类号： H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

    摘要： An optical subscriber network system is disclosed, which comprises: a server bi-directional optical transmitter including a multiplexer to multiplexes communication data and broadcast data, a server laser diode to converts the multiplexed data into an optical signal, and a server photo diode receive communication data from a subscriber, wherein the server bi-directional optical transmitter transmits the upstream communication data; and a subscriber bi-directional optical receiver including a subscriber laser diode to transmit upstream communication data, a subscriber photo diode to receive the optical signal transmitted from the server bi-directional optical transmitter, and a demultiplexer to demultiplex and divide the multiplexed signal into communication data and broadcast data. In the optical subscriber network system, the optical transmitter and the optical receiver can transceive image signals and Ethernet communication signals in a two-way direction by means of a single laser diode and photo diode.

    摘要翻译： 公开了一种光用户网络系统，其包括：服务器双向光发射机，包括多路复用器，用于复用通信数据和广播数据;服务器激光二极管，用于将多路复用数据转换为光信号;以及服务器光电二极管接收通信 来自用户的数据，其中服务器双向光发射机发送上行通信数据; 以及包括用户激光二极管以发送上行通信数据的订户双向光接收机，用于接收从服务器双向光发射机发送的光信号的用户光二极管，以及解复用器，以将多路复用信号解复用并分成通信 数据和广播数据。 在光用户网络系统中，光发射机和光接收机可以通过单个激光二极管和光电二极管双向传输图像信号和以太网通信信号。

    Apparatus and method for matching compressed video data under wireless fading environment
    62.
    发明授权
    Apparatus and method for matching compressed video data under wireless fading environment 有权
    在无线衰落环境下匹配压缩视频数据的装置和方法

    公开(公告)号：US08194729B2

    公开(公告)日：2012-06-05

    申请号：US11652336

    申请日：2007-01-11

    申请人： Chan-Yul Kim ,  Jeong-Rok Park ,  Young-Hun Joo ,  Yun-Je Oh

    发明人： Chan-Yul Kim ,  Jeong-Rok Park ,  Young-Hun Joo ,  Yun-Je Oh

    IPC分类号： H04N11/02 ,  H04B17/00 ,  H04B15/00

    CPC分类号： H04N19/36 ,  H04N19/115 ,  H04N19/132 ,  H04N19/154 ,  H04N19/166 ,  H04N19/31 ,  H04N19/39

    摘要： A method and apparatus for matching compressed video data under a wireless fading environment are disclosed. The apparatus includes an encoder for encoding and outputting the video data as a compressed bit stream, a channel error measurement unit for measuring Signal-to-Noise Ratio (SNR) or Carrier-to-Noise Ratio (CNR) of a wireless channel, and an encoder optimization module for determining if the current fading is slow fading or fast fading. A control signal is output to reduce a frame transmission ratio or to change the quality of the vide data if it is determined that the current fading is slow fading. Another control signal is output to adjust the size of a data output buffer of the wireless channel if it is determined that the current fading is fast fading. The apparatus also includes a temporal Scalable Video Coding (SVC) selector 24 and an SNR SVC selector 22 for selecting the frame transmission ratio or the bit rate according to the control signal output from the encoder optimization module, to provide a frame selection signal or a bit rate selection signal to the encoder.

    摘要翻译： 公开了一种用于在无线衰落环境下匹配压缩视频数据的方法和装置。 该装置包括用于编码和输出作为压缩比特流的视频数据的编码器，用于测量无线信道的信噪比（SNR）或载波对噪声比（CNR）的信道误差测量单元，以及 编码器优化模块，用于确定当前衰落是衰减缓慢还是快速衰落。 输出控制信号以降低帧传输比，或者如果确定当前衰落是缓慢衰落，则改变视频数据的质量。 如果确定当前的衰落是快衰落，则输出另一个控制信号以调整无线信道的数据输出缓冲器的大小。 该装置还包括时间可缩放视频编码（SVC）选择器24和SNR SVC选择器22，用于根据从编码器优化模块输出的控制信号来选择帧传输比率或比特率，以提供帧选择信号或 比特率选择信号到编码器。

    Method for performing handover by considering quality of service in broadband mobile communication system and system for providing the same
    63.
    发明授权
    Method for performing handover by considering quality of service in broadband mobile communication system and system for providing the same 有权
    通过考虑宽带移动通信系统中的服务质量和提供宽带移动通信系统的系统来执行切换的方法

    公开(公告)号：US08169967B2

    公开(公告)日：2012-05-01

    申请号：US12050341

    申请日：2008-03-18

    申请人： Chang-Hyun Lee ,  Sung-Jea Ko ,  Yun-Je Oh ,  Tae-Sung Park ,  Jeong-Rok Park ,  Jeong-Seok Choi ,  Young-Hun Joo ,  Hye-Soo Kim ,  Kyung-Ho Chae

    发明人： Chang-Hyun Lee ,  Sung-Jea Ko ,  Yun-Je Oh ,  Tae-Sung Park ,  Jeong-Rok Park ,  Jeong-Seok Choi ,  Young-Hun Joo ,  Hye-Soo Kim ,  Kyung-Ho Chae

    IPC分类号： H04W4/00 ,  H04W36/00 ,  H04B7/216 ,  H04M11/00

    CPC分类号： H04W36/30 ,  H04W36/26

    摘要： A system and method for performing a handover of a mobile station (MS) by considering Quality of Service (QoS) in a broadband mobile communication system. The method can include the steps of: receiving information about one or more neighbor base stations and reception strengths for the neighbor base stations from a Serving Radio Access System (RAS) currently communicating with the MS; extracting a value of a specific field from the received information about the neighbor base stations; combining the extracted value of the specific field with the reception strengths to thereby obtain combined values, and selecting a maximum value among the combined values; and transmitting a handover (handoff) request message to a base station corresponding to the selected maximum value. The system includes an MS that analyzes information about neighbor stations received in a Mobile Neighbor Base-station Advertisement (MOB_NBR_ADV) message to select a target RAS.

    摘要翻译： 一种通过考虑宽带移动通信系统中的服务质量（QoS）来执行移动台（MS）的切换的系统和方法。 该方法可以包括以下步骤：从当前与MS通信的服务无线电接入系统（RAS）接收关于一个或多个相邻基站的信息和相邻基​​站的接收强度; 从接收到的关于邻近基站的信息中提取特定字段的值; 将所提取的特定字段的值与接收强度组合，从而获得组合值，并且选择组合值中的最大值; 以及向对应于所选择的最大值的基站发送切换（切换）请求消息。 该系统包括分析在移动邻居基站广播（MOB_NBR_ADV）消息中接收的关于相邻站的信息以选择目标RAS的MS。

    METHOD AND APPARATUS FOR GENERATING THUMBNAIL IMAGE
    66.
    发明申请
    METHOD AND APPARATUS FOR GENERATING THUMBNAIL IMAGE 有权
    用于产生图像的方法和装置

    公开(公告)号：US20090196523A1

    公开(公告)日：2009-08-06

    申请号：US12360180

    申请日：2009-01-27

    申请人： Kwang-Pyo CHOI ,  Yun-Je Oh ,  Young-Hun Joo

    发明人： Kwang-Pyo CHOI ,  Yun-Je Oh ,  Young-Hun Joo

    IPC分类号： G06K9/40 ,  G06K9/32 ,  G06K9/36 ,  G06K9/48 ,  G06K9/00 ,  G06F3/048

    CPC分类号： G06T3/403

    摘要： A method and apparatus for generating a thumbnail image are provided so that the out-of-focus (OOF) information can be ascertained from looking at the thumbnail. An input image is decoded, and a degree of the amount of OOF of the decoded image is measured (OOF information). There is a determination as to whether or not there is an EXchangeable Image File (EXIF) information about the input image. In the presence of EXIF information, a thumbnail image is extracted from the EXIF information and as much an OOF effect is applied to the thumbnail image in accordance with the degree of OOF. In the absence of the EXIF information, a thumbnail image is generated by scaling down the decoded image at a down scaler and applying as much of an OOF effect is applied to the thumbnail image in accordance with the degree of OOF.

    摘要翻译： 提供了一种用于生成缩略图图像的方法和装置，使得可以从查看缩略图来确定失焦（OOF）信息。 输入图像被解码，并且测量解码图像的OOF量的程度（OOF信息）。 有关于是否存在关于输入图像的可替换图像文件（EXIF）信息的确定。 在存在EXIF信息的情况下，从EXIF信息中提取缩略图，并且根据OOF的程度将OOF效果应用于缩略图图像。 在不存在EXIF信息的情况下，通过缩小缩小缩放器中的解码图像来生成缩略图图像，并且根据OOF的程度应用对缩略图图像应用多少的OOF效果。

    METHOD AND APPARATUS FOR VIDEO DECODING, IN THE PRESENCE OF NOISE
    67.
    发明申请
    METHOD AND APPARATUS FOR VIDEO DECODING, IN THE PRESENCE OF NOISE 有权
    用于视频解码的方法和装置，在噪声存在的情况下

    公开(公告)号：US20090161768A1

    公开(公告)日：2009-06-25

    申请号：US12340826

    申请日：2008-12-22

    申请人： Young-O Park ,  Young-Hun Joo ,  Kwang-Pyo Choi

    发明人： Young-O Park ,  Young-Hun Joo ,  Kwang-Pyo Choi

    IPC分类号： H04N7/64 ,  H04N7/26

    CPC分类号： H04N19/117 ,  H04N19/154 ,  H04N19/172 ,  H04N19/44 ,  H04N19/61

    摘要： A method and apparatus for decoding video data that is encoded by bit rate control to keep a bandwidth of a bit stream in a predetermined range are provided. The encoded video data is decoded, picture quality estimation information is estimated, the estimation including information about a bit stream size of a decoded video frame, the number of fragmented macro blocks included in the video frame, and the number of skip-mode macro blocks included in the video frame, the picture quality of the video data is determined based on a correlation between picture quality estimation information and SNR, and the video data is output by applying a picture quality improving algorithm to the video data, if the determined picture quality is lower than a predetermined level.

    摘要翻译： 提供了一种用于解码通过比特率控制编码以将比特流的带宽保持在预定范围内的视频数据的方法和装置。 编码视频数据被解码，估计画面质量估计信息，包括关于解码视频帧的比特流大小的信息的估计，包括在视频帧中的分段宏块的数量和跳过模式宏块的数量 包括在视频帧中，基于图像质量估计信息和SNR之间的相关性来确定视频数据的图像质量，并且通过对视频数据应用图像质量改进算法来输出视频数据，如果所确定的图像质量 低于预定水平。

    Optical subscriber network system
    68.
    发明授权
    Optical subscriber network system 有权
    光用户网络系统

    公开(公告)号：US07450859B2

    公开(公告)日：2008-11-11

    申请号：US10783804

    申请日：2004-02-20

    申请人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

    发明人： Young-Hun Joo ,  Chan-Yul Kim ,  Jun-Ho Koh ,  Kyu-Hyung Cho

    IPC分类号： H04J14/02

    CPC分类号： H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

    摘要： An optical subscriber network system is disclosed, which comprises: a server bi-directional optical transmitter including a multiplexer to multiplexes communication data and broadcast data, a server laser diode to converts the multiplexed data into an optical signal, and a server photo diode receive communication data from a subscriber, wherein the server bi-directional optical transmitter transmits the upstream communication data; and a subscriber bi-directional optical receiver including a subscriber laser diode to transmit upstream communication data, a subscriber photo diode to receive the optical signal transmitted from the server bi-directional optical transmitter, and a demultiplexer to demultiplex and divide the multiplexed signal into communication data and broadcast data. In the optical subscriber network system, the optical transmitter and the optical receiver can transceive image signals and Ethernet communication signals in a two-way direction by means of a single laser diode and photo diode.

    摘要翻译： 公开了一种光用户网络系统，其包括：服务器双向光发射机，包括多路复用器，用于复用通信数据和广播数据;服务器激光二极管，用于将多路复用数据转换为光信号;以及服务器光电二极管接收通信 来自用户的数据，其中服务器双向光发射机发送上行通信数据; 以及包括用户激光二极管以发送上行通信数据的订户双向光接收机，用于接收从服务器双向光发射机发送的光信号的用户光二极管，以及解复用器，以将多路复用信号解复用并分成通信 数据和广播数据。 在光用户网络系统中，光发射机和光接收机可以通过单个激光二极管和光电二极管双向传输图像信号和以太网通信信号。

    Method for interpolating chrominance signal in video encoder and decoder
    70.
    发明申请
    Method for interpolating chrominance signal in video encoder and decoder 有权
    在视频编码器和解码器中内插色度信号的方法

    公开(公告)号：US20080095240A1

    公开(公告)日：2008-04-24

    申请号：US11893811

    申请日：2007-08-17

    申请人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

    发明人： Kwang-Pyo Choi ,  Yun-Je Oh ,  Young-Hun Joo

    IPC分类号： H04B1/66

    CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/136 ,  H04N19/186 ,  H04N19/43

    摘要： Disclosed is a method for interpolating chrominance signals in a video encoder and a decoder. The method includes the steps of accessing a memory unit to load an integer pixel value with regard to a plurality of motion compensation blocks, searching for a location of a motion vector s to perform sub-pixel interpolation of chrominance signals regarding the blocks and performing ¼ sub-pixel interpolation by row-based and column-based shifting when the motion vector indicates a ¼ location pixel with regard to the blocks. Also disclosed is an apparatus for performing the interpolating method described and a computer program product which when loaded into a computer system performs the interpolating method described.

    摘要翻译： 公开了一种用于在视频编码器和解码器中内插色度信号的方法。 该方法包括以下步骤：访问存储器单元以加载关于多个运动补偿块的整数像素值，搜索运动矢量s的位置以执行关于块的色度信号的子像素插值，并执行1/4 当运动矢量指示关于块的1/4位置像素时，通过基于行和列的移位进行子像素插值。 还公开了一种用于执行所描述的内插方法的装置和当被加载到计算机系统中时执行所描述的内插方法的计算机程序产品。