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公开(公告)号：KR1020080035191A
公开(公告)日：2008-04-23
申请号：KR1020060101524
申请日：2006-10-18
Applicant: 삼성전자주식회사
IPC: H04N19/136 , H04N19/51
CPC classification number: H04N19/136 , G01J1/0238 , H04B1/3827 , H04N5/225 , H04N19/573
Abstract: A method for determining a weighting factor by using an illuminance value and a mobile communication terminal therefore are provided to remove offset by brightness when the brightness is changed due to a sudden flash during video photographing, thereby improving compression efficiency and obtaining the weight(W) and offset(0) of weighted prediction with the small amount of operation. A method for determining a weighting factor necessary for a mobile communication terminal to perform weighted prediction comprises the following steps of: measuring the illuminance values of a previous frame and a current frame until frames inputted in a video mode becomes the predetermined number of frames(410); determining whether a difference between the illuminance values of the previous frame and the current frame is more than a predetermined threshold value(420); and calculating the weighting factor when the illuminance values is more than the predetermined threshold value(440).
Abstract translation: 因此，提供了通过使用照度值和移动通信终端来确定加权因子的方法，以便当在视频拍摄期间由于突然闪烁而改变亮度时清除由亮度的偏移，从而提高压缩效率并获得权重（W） 和加权预测的偏移（0）。 一种用于确定移动通信终端执行加权预测所需的加权因子的方法包括以下步骤：测量前一帧和当前帧的照度值，直到以视频模式输入的帧变为预定帧数（410 ）; 确定前一帧的照度值与当前帧之间的差是否大于预定阈值（420）; 以及当所述照度值大于所述预定阈值时计算所述加权因子（440）。
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公开(公告)号：KR100819288B1
公开(公告)日：2008-04-02
申请号：KR1020060102596
申请日：2006-10-20
Applicant: 삼성전자주식회사
CPC classification number: G06T5/002 , G06T2207/20008 , H04N19/117 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/60 , H04N19/85
Abstract: A method for detecting low-luminance noise and an image compression apparatus therefor are provided to apply a low-luminance noise removing algorithm to input images selectively without applying the low-luminance noise removing algorithm to all input images, thereby being applied to a low-performance processor and reducing power consumption to increase a batter life and photograph a high-definition image when applied to a portable phone. A median value calculator(120) calculates a median value by using a median filter for pixels of a partial area on an input image when the image is inputted. A low-luminance noise determination unit(130) determines whether a difference between the median value and the original pixel value of the partial area exceeds a low-luminance noise determination threshold value, counts the number of pixels exceeding the low-luminance noise determination threshold value, and checks the distribution of the low-luminance noise to determine whether the image includes the low-luminance noise. A low-luminance noise removing unit(140) performs a low-luminance noise removing algorithm for the input image only when the input image includes the low-luminance noise.
Abstract translation: 提供了一种用于检测低亮度噪声的方法及其图像压缩装置，以将低亮度噪声去除算法选择性地输入图像，而不对所有输入图像应用低亮度噪声去除算法，从而应用于低亮度噪声去除算法， 性能处理器，并降低功耗以增加触控寿命，并在应用于便携式电话时拍摄高清晰度图像。 中值计算器（120）通过使用输入图像时的输入图像上的局部区域的像素的中值滤波来计算中值。 低亮度噪声判定单元（130）判定中间值与部分区域的原始像素值之间的差是否超过低亮度噪声判定阈值，对超过低亮度噪声判定阈值的像素数进行计数 值，并检查低亮度噪声的分布，以确定图像是否包括低亮度噪声。 只有当输入图像包括低亮度噪声时，低亮度噪声去除单元（140）对输入图像执行低亮度噪声去除算法。
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公开(公告)号：KR100469717B1
公开(公告)日：2005-02-02
申请号：KR1020020023826
申请日：2002-04-30
Applicant: 삼성전자주식회사
CPC classification number: H04L1/22
Abstract: A photoelectric cross-connect system for an optical-communication system minimizes service recovery time when an error is generated. A plurality of nodes are connected by an optical-transmission line wherein each nodes automatically recognizes a data rate of an input signal and communicates over a redundant channel with an adjacent node when there is a certain type of error. An optical-receiving unit receives an optical signal performs O/E conversion. A main optical-transmitting unit recovers clock and data signals according to the converted signal and sets a data rate according to the converted signal for subsequent transmission; a redundant optical-transmitting unit recovers a clock and data according to the converted signal and sets a data rate according to the converted signal for subsequent transmission A switch provides selectively connection state between the optical-receiving unit and the main optical-transmitting unit and between the optical-receiving unit and the redundant optical-transmitting unit.
Abstract translation: 用于光通信系统的光电交叉连接系统最大限度地减少了产生错误时的服务恢复时间。 多个节点通过光传输线连接，其中每个节点自动识别输入信号的数据速率，并在存在某种类型的错误时通过冗余信道与相邻节点进行通信。 光接收单元接收光信号进行O / E转换。 主光发射单元根据转换后的信号恢复时钟和数据信号，并根据转换后的信号设置数据速率用于后续传输; 冗余光发射单元根据转换后的信号恢复时钟和数据，并根据转换后的信号设置数据速率以用于随后的发送。开关提供光接收单元和主光发送单元之间的选择性连接状态以及 光接收单元和冗余光发射单元。
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公开(公告)号：KR101042751B1
公开(公告)日：2011-06-20
申请号：KR1020080015565
申请日：2008-02-20
Applicant: 삼성전자주식회사
IPC: G01S5/02
CPC classification number: G01S13/76 , G01S7/2921
Abstract: 무선 환경에서 거리를 측정하는 방법에 있어서, 거리를 측정하고자 하는 디바이스(Device) 사이의 거리측정신호를 송신하고 응답신호를 수신하는 과정과, 거리를 측정하고자 하는 디바이스(Device) 사이에서 수신된 응답신호와 수신된 응답신호 중 첫 응답신호를 검출하기 위한 기준 신호를 매칭하는 과정과, 매칭된 기준 신호 파형의 피크(Peak)값을 이용하여 상기 디바이스 사이의 상기 거리측정신호를 송신하고 상기 응답신호를 수신하는데 소요되는 시간을 계산하는 과정을 포함하는 것을 특징으로 한다.
거리 측정, TOA, 응답신호-
公开(公告)号：KR1020080100066A
公开(公告)日：2008-11-14
申请号：KR1020070046173
申请日：2007-05-11
Applicant: 삼성전자주식회사
CPC classification number: Y02D70/10 , G01S5/0242 , H04W64/003
Abstract: A wireless position measurement system and a method for determining the coordinates of a fixed node are provided to accurately calculate the coordinates of a non-fixed node by using the reference coordinates of the fixed node. A method for determining the coordinates of a fixed node in a wireless position measurement system comprises the following steps of: setting up an installed node as the first fixed node(S210), and setting up the coordinates of the first fixed node as the first reference coordinates(S220); calculating the second reference coordinates of the second fixed node, installed after the installation of the first fixed node, by using the first reference coordinates(S230, S240); and calculating the third reference coordinates of the third fixed node, installed after the installation of the second fixed node, by using the calculated first and second reference coordinates(S260, S270).
Abstract translation: 提供一种用于确定固定节点的坐标的无线位置测量系统和方法，以通过使用固定节点的参考坐标来精确地计算非固定节点的坐标。 一种用于确定无线位置测量系统中的固定节点的坐标的方法，包括以下步骤：将安装的节点设置为第一固定节点（S210），并将第一固定节点的坐标设置为第一参考 坐标（S220）; 通过使用第一参考坐标来计算安装在第一固定节点之后安装的第二固定节点的第二参考坐标（S230，S240）; 以及通过使用所计算的第一和第二参考坐标来计算在安装第二固定节点之后安装的第三固定节点的第三参考坐标（S260，S270）。
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Patent Agency Ranking
公开(公告)号：KR1020080088774A
公开(公告)日：2008-10-06
申请号：KR1020070031490
申请日：2007-03-30
Applicant: 삼성전자주식회사 , 고려대학교 산학협력단
CPC classification number: H04W36/30 , H04W36/26 , H04W36/0055
Abstract: A method for performing handover under the consideration of QOS(Quality of Service) in a broadband mobile communication system and a system for providing the same are provided to enable a PSS to recognize received signal strength from a serving RAS and the QOS information of plural available neighbor RASs previously to perform handover, thereby minimizing problems such as the deterioration of the QOS, an increase of a delayed time, and network disconnection. A serving RAS(Radio Access Station)(440) transmits an MOB_NBR_ADV(Mobile Subscriber Station Neighbor Advertisement) message to a PSS(Personal Subscriber Station)(400). The PSS transmits an MOB_SCN_REQ(Mobile Subscriber Scanning Interval Allocation Request) message to the serving RAS. The serving RAS transmits an MOB_SCN_RSP(Mobile Subscriber Station Scanning Interval Allocation Response) message to the PSS. The PSS scans plural neighbor RASs. The PSS selects a target RAS. The PSS transmits an MOB_MSHO_REQ(Mobile Subscriber Station Hand Over Request) message to the serving RAS. The serving RAS transmits an MOB_BSHO_RSP(Mobile Subscriber Station Handover Response) message to the PSS. The PSS transmits an MOB_BSHO_REQ message to the serving RAS. The PSS transmits an MOB_HO_IND(Mobile Subscriber Station Handover Indication) message to the serving RAS.
Abstract translation: 提供了一种在宽带移动通信系统中考虑QOS（服务质量）和提供该QoS的系统来执行切换的方法，以使PSS能够识别来自服务RAS的接收信号强度和多个可用的QOS信息 相邻RAS先前执行切换，从而最小化诸如QOS的恶化，延迟时间的增加和网络断开等问题。 服务的RAS（无线电接入站）（440）向PSS（个人用户站）发送MOB_NBR_ADV（移动用户站邻居通告）消息（400）。 PSS向服务RAS发送MOB_SCN_REQ（移动用户扫描间隔分配请求）消息。 服务的RAS向PSS发送MOB_SCN_RSP（移动用户站扫描间隔分配响应）消息。 PSS扫描多个相邻RAS。 PSS选择一个目标RAS。 PSS向服务RAS发送MOB_MSHO_REQ（移动用户站切换请求）消息。 服务RAS向PSS发送MOB_BSHO_RSP（移动用户站切换响应）消息。 PSS向服务RAS发送MOB_BSHO_REQ消息。 PSS向服务RAS发送MOB_HO_IND（移动用户站切换指示）消息。
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公开(公告)号：KR1020080037145A
公开(公告)日：2008-04-30
申请号：KR1020060103807
申请日：2006-10-25
Applicant: 삼성전자주식회사
IPC: H04N19/65
CPC classification number: H04N19/107 , H04N19/166 , H04N19/176 , H04N19/61 , H04N21/234 , H04N21/2402 , H04N21/41407 , H04N21/44209 , H04N21/6582
Abstract: A system for providing an image service, and a method and an apparatus therefor are provided to change a coding method according to an image transceiving state between a terminal and a server, thereby dealing with the distortion of an image even in a wireless environment. A method for providing an image service in an image service system comprises the following steps of: coding an input image according to a coding method using intra coding and inter coding by macro block together at a predetermined ratio(310); determining whether coding method change determination information transmitted from a portable terminal is received(320); determining whether it is necessary to change the coding method(330); changing the coding method and coding only a macro block, in which an error occurs, or a macro block after the macro block(340); and determining whether the transmission of an image frame is completed(350).
Abstract translation: 提供一种用于提供图像服务的系统及其方法和装置，用于根据终端和服务器之间的图像收发状态来改变编码方法，从而即使在无线环境中也处理图像的失真。 一种用于在图像服务系统中提供图像服务的方法包括以下步骤：根据编码方法，以预定比例（310）将帧内编码和由宏块编码的帧间编码在一起编码输入图像; 确定是否接收到从便携式终端发送的编码方法改变确定信息（320）; 确定是否需要改变编码方法（330）; 改变编码方法并仅编码出现错误的宏块或宏块后的宏块（340）; 以及确定图像帧的发送是否完成（350）。
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公开(公告)号：KR1020070082664A
公开(公告)日：2007-08-22
申请号：KR1020060015552
申请日：2006-02-17
Applicant: 삼성전자주식회사
IPC: H04N19/166 , H04N21/238
CPC classification number: H04N19/36 , H04N19/115 , H04N19/132 , H04N19/154 , H04N19/166 , H04N19/31 , H04N19/39
Abstract: An apparatus and a method for matching compressed video in wireless fading environment are provided to satisfy transmission quality and stably transmit multimedia data by judging a fading state and suitably correspond to fast fading. An encoder(10) encodes video data and outputs a compression bit stream. A channel error measuring unit(16) measures an SNR(Signal to Noise Ratio) or a CNR(Carrier to Noise Ratio) of a wireless channel. An encoder optimizing module(30) judges whether a current fading state is a fast fading state or a slow fading state by using the SNR or the CNR measured in the channel error measuring unit(16). When the current fading state is the slow fading state, the encoder optimizing module(30) outputs a control signal for reducing a frame transmission rate or changing video quality. When the current fading state is the fast fading state, the encoder optimizing module(30) outputs a control signal for greatly adjusting a size of a data output buffer of the wireless channel. A temporal SVC(Scalable Video Coding) selector(24) and an SNR SVC selector(22) select a frame transmission rate or a bit rate according to the control signal outputted from the encoder optimizing module(30), and provide a frame selection signal or a bit rate selection signal to the encoder(10).
Abstract translation: 提供了一种用于在无线衰落环境中匹配压缩视频的装置和方法，以满足传输质量并通过判断衰落状态并适当地对应于快速衰落来稳定地发送多媒体数据。 编码器（10）对视频数据进行编码并输出压缩比特流。 信道误差测量单元（16）测量无线信道的SNR（信噪比）或CNR（载噪比）。 编码器优化模块（30）通过使用在信道误差测量单元（16）中测量的SNR或CNR来判断当前衰落状态是快速衰落状态还是缓慢衰落状态。 当当前衰落状态为慢衰落状态时，编码器优化模块（30）输出用于降低帧传输速率或改变视频质量的控制信号。 当当前的衰落状态是快速衰落状态时，编码器优化模块（30）输出用于大大调整无线信道的数据输出缓冲器的大小的控制信号。 时间SVC（可缩放视频编码）选择器（24）和SNR SVC选择器（22）根据从编码器优化模块（30）输出的控制信号选择帧传输速率或比特率，并提供帧选择信号 或比特率选择信号发送到编码器（10）。
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公开(公告)号：KR100713517B1
公开(公告)日：2007-05-02
申请号：KR1020040098179
申请日：2004-11-26
Applicant: 삼성전자주식회사
IPC: H04N5/76
CPC classification number: H04N5/76 , H04N9/8042 , H04N9/8063 , H04N9/8205
Abstract: 1. 청구범위에 기재된 발명이 속하는 기술분야
본 발명은 디지털 방송을 수신하여 저장하는 PVR(Personal Video Recoder)에 관한 것으로, 특히 메타 데이터(Metadata)를 제공하기 위한 MPEG-21 또는 MPEG-7을 사용하여 제작된 방송 프로그램을 메타 데이터에 따라 저장하기 위한 장치 및 방법에 관한 것임.
2. 발명이 해결하려고 하는 기술적 과제
본 발명은 실시간으로 메타 데이터를 분석하여 이에 따른 실시간 녹화를 수행하는 메타 데이터에 따른 녹화가 가능한 PVR과 그 녹화 제어 방법을 제공하는데 그 목적이 있음.
3. 발명의 해결 방법의 요지
본 발명은, 디지털 방송을 녹화하기 위한 PVR(Personal Video Recoder)에 있어서, 디지털 방송을 수신하여 비디오 데이터, 오디오 데이터 및 메타 데이터를 분리하는 방송 수신부; 메타 데이터를 분석하여 디지털 방송 프로그램의 관련 정보를 출력하는 DS 분석기; 사용자로부터 상기 디지털 방송을 녹화하기 위한 설정 정보를 수신하기 위한 사용자 입력부; 상기 DS 분석기로부터 출력되는 디지털 방송 프로그램의 관련 정보를 입력받아 상기 설정 정보를 이용하여 필터링하는 프로그램 정보 처리부; 상기 비디오 데이터와 상기 오디오 데이터를 실시간으로 저장하기 위해 상기 프로그램의 관련 정보에 대한 처리를 위한 시간동안 임시 저장하기 위한 동기화 버퍼부; 상기 동기화 저장부에 임시 저장중인 상기 비디오 데이터와 상기 오디오 데이터를 입력받아 저장을 위해 인코딩하여 저장하는 녹화부; 및 상기 프로그램 정보 처리부에서 필터링된 프로그램 정보와 상기 사용자 입력부를 통해 입력된 설정 정보를 비교하여 그 비교 결과에 따라 상기 동기화 제어부 및 상기 녹화부를 제어하여 상기 비디오 데이터와 상기 오디오 데이터를 저장하도록 제어하는 제어부를 포함함.
4. 발명의 중요한 용도
본 발명은 PVR 등에 이용됨.
PVR, 메타 데이터, DS 분석기, MPEG-7-
公开(公告)号：KR1020060086707A
公开(公告)日：2006-08-01
申请号：KR1020050007604
申请日：2005-01-27
Applicant: 삼성전자주식회사
CPC classification number: H04N21/2368 , H04N21/4316 , H04N21/434 , H04N21/4341 , H04N21/4345 , H04N21/4347
Abstract: Disclosed is an apparatus and method for constructing and broadcasting a multi-screen broadcasting program by using a transport stream in a digital broadcasting, and for decoding the constructed transport stream to restore image and voice signals. The method includes the steps of analyzing a program access table (PAT) of broadcasting data to determine whether there are at least two image packets, performing signal decoding when the input broadcasting data is a single screen program having one image packet, performing a multi-decoding when the input broadcasting data is a multi-screen program having at least two image packets.
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