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21. 发明授权

US07450859B2 Optical subscriber network system 有权
标题翻译：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。

22. 发明申请

US20080084488A1 Digital photographing apparatus and method for detecting and correcting smear by using the same 审中-公开
标题翻译：数字摄影装置及其使用方法
公开(公告)号：US20080084488A1
公开(公告)日：2008-04-10
申请号：US11973510
申请日：2007-10-09
申请人： Han-Sang Kim , Bong-Gon Kim , Chan-Yul Kim , Young-Hun Joo
发明人： Han-Sang Kim , Bong-Gon Kim , Chan-Yul Kim , Young-Hun Joo
IPC分类号： H04N9/64 , H04N5/228 , H04N5/335
CPC分类号： G06T5/005 , G06T5/20 , G06T2207/10024 , H04N5/3595 , H04N5/372 , H04N9/045 , H04N19/86
摘要： Disclosed is a digital photographing apparatus which includes a lens for optically photographing an object, a CCD for performing photoelectric conversion for an image photographed by the lens, a buffer unit for storing the image converted by the CCD in a unit of frame or field, a controller for determining if a smear has occurred in the image output from the buffer unit, and correcting a pixel value of an image area in which the smear has occurred, an image processor for compressing the image output from the CCD by using a scheme according to characteristics and sizes of a display unit, or restoring the compressed image into an original image under the control of the controller and the display unit for displaying the image output from the image processor on a screen.
摘要翻译：公开了一种数字拍摄装置，其包括用于光学拍摄物体的透镜，用于对由镜头拍摄的图像进行光电转换的CCD，用于以帧或场为单位存储由CCD转换的图像的缓冲单元，控制器，用于确定从缓冲单元输出的图像中是否发生了拖尾，以及校正已经发生拖尾的图像区域的像素值;图像处理器，用于压缩从CCD输出的图像，使用根据显示单元的特征和尺寸，或者在控制器和显示单元的控制下将压缩图像恢复为原始图像，以在屏幕上显示从图像处理器输出的图像。

23. 发明申请

US20080089418A1 Image encoding apparatus and memory access method 审中-公开
标题翻译：图像编码装置和存储器访问方法
公开(公告)号：US20080089418A1
公开(公告)日：2008-04-17
申请号：US11904088
申请日：2007-09-26
申请人： Bong-Gon Kim , Chan-Yul Kim , Young-Hun Joo
发明人： Bong-Gon Kim , Chan-Yul Kim , Young-Hun Joo
IPC分类号： H04B1/66 , G06K9/32 , H04N7/12
CPC分类号： H04N19/523 , H04N19/433 , H04N19/61
摘要： Disclosed is an image encoding apparatus and a memory access method. The image encoding apparatus for encoding image data includes: a memory for storing a frame of the image data; a motion prediction unit for detecting a motion vector of a predetermined block unit for a currently-input image frame based on the stored frame, and accessing the memory in order to perform sub-pixel interpolation for a corresponding block of the motion vector; and a motion compensation unit for performing motion compensation with respect to a frame block to be compressed, by using the detected motion vector, thereby reducing the number of times the memory is accessed for encoding. Since the number of memory access times is reduced, which is very frequently used in interpolation of a color difference signal, low-power encoding is achieved.
摘要翻译：公开了图像编码装置和存储器访问方法。用于编码图像数据的图像编码装置包括：存储器，用于存储图像数据的帧; 运动预测单元，用于基于所存储的帧来检测用于当前输入的图像帧的预定块单元的运动矢量，并且访问存储器以便为运动矢量的相应块执行子像素插值; 以及运动补偿单元，用于通过使用检测到的运动矢量来执行关于要压缩的帧块的运动补偿，由此减少存储器被访问以进行编码的次数。由于在色差信号的插值中经常使用的存储器访问次数减少，因此实现了低功率编码。

24. 发明申请

US20060045023A1 Method for estimating available bandwidth of network 有权
标题翻译：估计网络可用带宽的方法
公开(公告)号：US20060045023A1
公开(公告)日：2006-03-02
申请号：US11147640
申请日：2005-06-08
申请人： Chan-Yul Kim , Jun-Ho Koh , Jong-Kwon Kim
发明人： Chan-Yul Kim , Jun-Ho Koh , Jong-Kwon Kim
IPC分类号： H04L1/00
CPC分类号： H04L1/24 , H04L1/0002
摘要： Disclosed is a method for estimating an available bandwidth of a network. A plurality of periodic time-stamp packets are transmitted to a receiving-party communication apparatus, which is connected to the network, through the network at a currently-set test transmission rate, and then a changing tendency of transmission delay time differences between the time-stamp packets is checked on the basis of reception times at which the receiving-party communication apparatus have received the respective time-stamp packets. When the transmission delay time differences are located outside a stable range and show a tendency to increase, the test transmission rate is set to a decreased value and the time-stamp packets are repeatedly transmitted at the decreased rate and when the transmission delay time differences are located outside the stable range and show a tendency to decrease, the test transmission rate is set to be an increased value and the time-stamp packets are repeatedly transmitted at the increased rate. A test transmission rate is determined as the available bandwidth when the transmission delay time differences are within the stable range.
摘要翻译：公开了一种用于估计网络的可用带宽的方法。多个周期性时间戳分组通过网络以当前设置的测试传输速率被发送到连接到网络的接收方通信设备，然后是时间间隔之间的传输延迟时间差的变化趋势基于接收方通信装置已经接收到各个时间戳分组的接收时间来检查振幅分组。当传输延迟时间差位于稳定范围之外并且显示出增加的趋势时，将测试传输速率设置为减小的值，并且以降低的速率重复发送时间戳分组，并且当传输延迟时间差为位于稳定范围之外并且显示出降低的趋势，将测试传输速率设置为增加的值，并且以增加的速率重复发送时间戳分组。当传输延迟时间差在稳定范围内时，测试传输速率被确定为可用带宽。

25. 发明授权

US07693077B2 Method for estimating available bandwidth of network 有权
标题翻译：估计网络可用带宽的方法
公开(公告)号：US07693077B2
公开(公告)日：2010-04-06
申请号：US11147640
申请日：2005-06-08
申请人： Chan-Yul Kim , Jun-Ho Koh , Jong-Kwon Kim
发明人： Chan-Yul Kim , Jun-Ho Koh , Jong-Kwon Kim
IPC分类号： H04B7/216
CPC分类号： H04L1/24 , H04L1/0002
摘要： Disclosed is a method for estimating an available bandwidth of a network. A plurality of periodic time-stamp packets are transmitted to a receiving-party communication apparatus, which is connected to the network, through the network at a currently-set test transmission rate, and then a changing tendency of transmission delay time differences between the time-stamp packets is checked on the basis of reception times at which the receiving-party communication apparatus have received the respective time-stamp packets. When the transmission delay time differences are located outside a stable range and show a tendency to increase, the test transmission rate is set to a decreased value and the time-stamp packets are repeatedly transmitted at the decreased rate and when the transmission delay time differences are located outside the stable range and show a tendency to decrease, the test transmission rate is set to be an increased value and the time-stamp packets are repeatedly transmitted at the increased rate. A test transmission rate is determined as the available bandwidth when the transmission delay time differences are within the stable range.
摘要翻译：公开了一种用于估计网络的可用带宽的方法。多个周期性时间戳分组通过网络以当前设置的测试传输速率被发送到连接到网络的接收方通信设备，然后是时间间隔之间的传输延迟时间差的变化趋势基于接收方通信装置已经接收到各个时间戳分组的接收时间来检查振幅分组。当传输延迟时间差位于稳定范围之外并且显示出增加的趋势时，将测试传输速率设置为减小的值，并且以降低的速率重复发送时间戳分组，并且当传输延迟时间差为位于稳定范围之外并且显示出降低的趋势，将测试传输速率设置为增加的值，并且以增加的速率重复发送时间戳分组。当传输延迟时间差在稳定范围内时，测试传输速率被确定为可用带宽。

26. 发明授权

US07203240B2 Method of recovering clock signal using user clock code in TDM digital video signal and transmitting/receiving apparatus used for the method 有权
标题翻译：使用TDM数字视频信号中的用户时钟码和用于该方法的发送/接收装置恢复时钟信号的方法
公开(公告)号：US07203240B2
公开(公告)日：2007-04-10
申请号：US10651745
申请日：2003-08-29
申请人： Chan-Yul Kim , Jun-Ho Koh
发明人： Chan-Yul Kim , Jun-Ho Koh
IPC分类号： H04N7/12 , H04B7/212
CPC分类号： H04L7/046 , H04N21/4305
摘要： A clock recovery method for a TDM digital video signal and a transmitting/receiving apparatus for the clock recovery method are disclosed. A transmitter inserts a user clock code containing a predetermined number of points into the digital video signal during TDM processing and transmits the digital video signal. A receiver receives the TDM digital video signal and detects the user clock code from the TDM digital video signal. It counts a reference clock signal and recovers a transmission clock signal in an LMS algorithm using the user clock code and the count value.
摘要翻译：公开了用于TDM数字视频信号的时钟恢复方法和用于时钟恢复方法的发送/接收装置。在TDM处理期间，发射机将包含预定数量的点的用户时钟码插入到数字视频信号中，并发送数字视频信号。接收机接收TDM数字视频信号，并从TDM数字视频信号中检测用户时钟码。它计数参考时钟信号，并使用用户时钟码和计数值在LMS算法中恢复传输时钟信号。

27. 发明申请

US20050013611A1 Image data processing apparatus in optical subscriber network 审中-公开
标题翻译：光用户网络中的图像数据处理装置
公开(公告)号：US20050013611A1
公开(公告)日：2005-01-20
申请号：US10763985
申请日：2004-01-23
申请人： Chang-Hyun Lee , Chan-Yul Kim , Sang-Ho Kim , Jun-Ho Koh
发明人： Chang-Hyun Lee , Chan-Yul Kim , Sang-Ho Kim , Jun-Ho Koh
IPC分类号： H04L12/28 , H04J3/16 , H04J14/00
CPC分类号： H04J3/1617
摘要： An image data transmission apparatus in an optical subscriber network is disclosed, which comprises: one optical line termination for receiving MPTS data from an outside, packetizing the received MPTS data into HDLC packets, and transmitting the HDLC packets as optical signals; and a plurality of ONUs connected to the OLT, the ONU receiving the optical signal transmitted from the OLT, converting the optical signal into an electrical signal, extracting MPTS data from the converted HDLC packet, and switching the MPTS data to each subscriber. The image data transmission apparatus processes HDLC-based MPTS data, increases degree of integration of data, and therefore enables the optical subscriber network to include more channels.
摘要翻译：公开了一种光用户网络中的图像数据传输装置，包括：一个光线路终端，用于从外部接收MPTS数据，将接收到的MPTS数据分组成HDLC分组，并将HDLC分组作为光信号发送; 以及连接到OLT的多个ONU，ONU接收从OLT发送的光信号，将光信号转换成电信号，从转换的HDLC分组中提取MPTS数据，并将MPTS数据切换到每个用户。图像数据发送装置处理基于HDLC的MPTS数据，增加数据的集成度，因此使得光用户网络能够包括更多的信道。

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