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公开(公告)号：KR1020120122986A
公开(公告)日：2012-11-07
申请号：KR1020120045574
申请日：2012-04-30
Applicant: 삼성전자주식회사
CPC classification number: H04N21/2662 , H04L47/23 , H04L65/601 , H04N19/132 , H04N19/146 , H04N19/182 , H04N19/59 , H04N21/64792 , H04W28/02
Abstract: PURPOSE: A data transmission rate control method in a wireless communication system and apparatus thereof are provided to control data transmission rates based on the environment of a wireless channel and bandwidth in the transmission of non-compression image data. CONSTITUTION: When bandwidth which is necessary to transmit image data is not enough, a wireless transmission apparatus drops one or more pixels in each pixel block(320,330). When the data transmission rate of image data including one or more pixels is smaller than the available bandwidth, the wireless transmission apparatus packetizes the image data(340). The wireless transmission apparatus transmits the packetized image data to a wireless reception apparatus using a wireless channel(350). [Reference numerals] (310) The size of a pixel block is selected; (320) Is bandwidth is sufficient for transmitting image data?; (330) One or more pixels are dropped; (340) Is the data transmission rate of processed data is smaller than available bandwidth?; (350) Image data is packetized and is transmitted through a wireless channel; (AA) Start; (BB,EE) Yes; (CC,DD) No; (FF) End
Abstract translation: 目的：提供一种无线通信系统中的数据传输速率控制方法及其装置，用于在非压缩图像数据的发送中，基于无线信道的环境和带宽来控制数据传输速率。 构成：当发送图像数据所需的带宽不足时，无线发送装置丢弃每个像素块中的一个或多个像素（320,330）。 当包括一个或多个像素的图像数据的数据传输速率小于可用带宽时，无线传输装置打包图像数据（340）。 无线发送装置使用无线信道将分组化图像数据发送到无线接收装置（350）。 （参考号）（310）选择像素块的大小; （320）带宽是否足以传输图像数据？ （330）丢弃一个或多个像素; （340）处理数据的数据传输速率是否小于可用带宽？ （350）图像数据被分组化并通过无线信道发送; （AA）开始; （BB，EE）是; （CC，DD）否; （FF）结束
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公开(公告)号：KR1020110124118A
公开(公告)日：2011-11-16
申请号：KR1020100104751
申请日：2010-10-26
Applicant: 삼성전자주식회사
IPC: H04N19/13 , H04N19/105 , H04N19/124 , H04N19/176 , H04N19/182
CPC classification number: H04N19/182 , H04N19/105 , H04N19/124 , H04N19/176 , H04N19/184 , H04N19/593 , H04N19/91 , H04N19/13 , H04N19/107 , H04N19/11
Abstract: PURPOSE: An image frame encoding method and apparatus thereof are provided to reduce the complexity of an encoding device through the differential of a pixel value. CONSTITUTION: An encoding device partitions a video frame a plurality of pixel blocks(501). The encoding device calculates a differential value from a reference pixel and a neighbor pixel(502). The encoding device transforms the differential values into a value having a range between 0 and 2p-1(503). The encoding device maps the transformed values to each entropy coding symbol(504).
Abstract translation: 目的：提供一种图像帧编码方法及其装置，通过像素值的差分来降低编码装置的复杂度。 构成：编码装置对视频帧分割多个像素块（501）。 编码装置从参考像素和相邻像素计算差分值（502）。 编码装置将差分值变换为范围在0和2p-1（503）之间的值。 编码装置将变换的值映射到每个熵编码符号（504）。
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公开(公告)号：KR1020110099619A
公开(公告)日：2011-09-08
申请号：KR1020100107016
申请日：2010-10-29
Applicant: 삼성전자주식회사
IPC: H04N7/12
CPC classification number: H04N19/164 , H04N11/046 , H04N19/119 , H04N19/186 , H04N19/188 , H04N19/593 , H04N19/66 , H04N19/70
Abstract: 본 발명의 일실시예는 동영상 프레임의 픽셀들로부터 적어도 하나의 기준 픽셀과 그 기준 픽셀에 인접한 적어도 하나의 이웃 픽셀로 구성되는 적어도 하나의 픽셀 블록을 생성하고, 그 적어도 하나의 픽셀 블록에서 적어도 하나의 이웃 픽셀의 픽셀 값을 그 적어도 하나의 이웃 픽셀에 인접한 픽셀들 중 하나의 픽셀 값과 그 적어도 하나의 이웃 픽셀의 픽셀 값간의 차이 값으로 교체한 후, 그 적어도 하나의 기준 픽셀의 픽셀 값 및 그 적어도 하나의 이웃 픽셀의 픽셀 차이 값이 픽셀들의 위치에 따라 상이한 패킷에 할당되도록 구성된 패킷들을 생성하는 동영상 패킷 생성 방법을 제공한다.
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公开(公告)号：KR1020110073040A
公开(公告)日：2011-06-29
申请号：KR1020090130188
申请日：2009-12-23
Applicant: 삼성전자주식회사
CPC classification number: G01S1/70 , G01C21/206 , G01C21/20 , G01C21/3415
Abstract: PURPOSE: An indoor navigation method and system using lamps is provided to perform a navigation function in an indoor by using the visible light communications through LED lamps. CONSTITUTION: An indoor navigation method using lamps is as follows. A mobile terminal determines a current location by receiving map information and ID of information offering lamps from a lamp which is connected to a map server(601). The destination location is input from a user and displayed(602). An optimal path to the destination from a current location is displayed using map information(604). If the mobile terminal receives ID from a general lamp offering its own ID information, determines a current location again. If the re-determined current location is on an optimal path, the optimal path, to the destination from the re-determined current location, is renewed(609).
Abstract translation: 目的：提供使用灯的室内导航方法和系统，通过使用通过LED灯的可见光通信在室内执行导航功能。 规定：使用灯的室内导航方法如下。 移动终端通过接收地图信息和从连接到地图服务器的灯提供灯的信息的ID来确定当前位置（601）。 目的地位置是从用户输入并显示（602）。 使用地图信息显示从当前位置到目的地的最佳路径（604）。 如果移动终端从提供其自己的ID信息的通用灯接收到ID，则再次确定当前位置。 如果重新确定的当前位置在最佳路径上，则从重新确定的当前位置到目的地的最佳路径被更新（609）。
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公开(公告)号：KR101009803B1
公开(公告)日：2011-01-19
申请号：KR1020080015789
申请日：2008-02-21
Applicant: 삼성전자주식회사
IPC: H04B10/116 , H04L12/28 , H04B10/40
CPC classification number: H04B10/116 , H04B10/1149
Abstract: 본 발명은 가시광 통신 시스템에서의 데이터 송수신 장치에 있어서, 수신 동작시 수광소자를 이용하여 상대방측으로부터 수신한 가시광 신호를 전기신호로 변환하여 출력하며, 송신 동작시 발광소자를 이용하여 정보를 담은 전기신호를 가시광 신호로 변환하여 상대방측으로 송신하는 가시광 송수신기(VLC Transceiver)와, 가시 프레임을 생성하여 가시광 송수신기로 출력하는 VEF(Visible Frame Engine)를 포함하며, 송신측 및 수신측에서 통신을 위한 각 프레임을 전송하지 않는 시간에 통신 링크에 가시성을 제공하기 위하여 VEF에서 가시 프레임(Visible Frame)을 생성하여 상대방 측으로 전송하는 가시광 컨트롤러(VLC controller)와, 가시광 컨트롤러를 제어하며 상기 가시광 컨트롤러와 데이터를 송수신하는 호스트 컨트롤러(Host controller)를 포함한다.
가시광 통신, VFE, ACK, 프리앰블, OSI, 가시 프레임(Visible Frame)-
Patent Agency Ranking
公开(公告)号：KR1020100114422A
公开(公告)日：2010-10-25
申请号：KR1020090032950
申请日：2009-04-15
Applicant: 삼성전자주식회사
IPC: G03G15/00
CPC classification number: B41J3/36
Abstract: PURPOSE: A handheld printer and a printing method thereof are provided to receive distance information from at least one sensor and to determine the location of a handheld printer based on distance information. CONSTITUTION: A distance information reception unit receives a distance information from at least one sensor(120) located on a handheld printer. A location determination unit(113) determines the location of the handheld printer based on the distance information. A control unit determines data to be printed on determined location. A printing area set unit(114) sets an area available for the handheld printer to print based on the distance information.
Abstract translation: 目的：提供手持式打印机及其打印方法以从至少一个传感器接收距离信息，并且基于距离信息来确定手持式打印机的位置。 构成：距离信息接收单元从位于手持式打印机上的至少一个传感器（120）接收距离信息。 位置确定单元（113）基于距离信息确定手持式打印机的位置。 控制单元确定要在确定位置上打印的数据。 打印区域设置单元（114）基于距离信息设置可用于手持打印机进行打印的区域。
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公开(公告)号：KR1020100089546A
公开(公告)日：2010-08-12
申请号：KR1020090008851
申请日：2009-02-04
Applicant: 삼성전자주식회사
IPC: H04N19/137 , H04N19/51
CPC classification number: H04N19/93 , H04N19/11 , H04N19/136 , H04N19/15 , H04N19/17 , H04N19/182 , H04N19/593 , H04N19/137 , H04N19/13 , H04N19/51
Abstract: PURPOSE: A method and an apparatus for successively encoding/decoding an image are provided to perform compressive encoding/decoding for an image depending on whether or not image processing unit and a residual value are repeated. CONSTITUTION: An image encoding device judges whether or not a current image processing unit is identical to an image processing unit which is previously encoded(610), and performs entropy-encoding for the information on the repetition frequency which is the image processing unit(612). The image encoding device judges whether or not a current residual value is identical to the other residual value of the current image processing unit for which the entropy-encoding is performed(630). The image encoding device performs second entropy-encoding based on the initial residual value(632).
Abstract translation: 目的：提供一种用于连续编码/解码图像的方法和装置，以根据是否重复图像处理单元和残余值来对图像执行压缩编码/解码。 构成：图像编码装置判断当前图像处理单元是否与先前编码的图像处理单元相同（610），并且对作为图像处理单元的重复频率的信息进行熵编码（612 ）。 图像编码装置判断当前残差值是否与进行熵编码的当前图像处理单元的其余残差值相同（630）。 图像编码装置基于初始残差值进行第二熵编码（632）。
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公开(公告)号：KR1020100043972A
公开(公告)日：2010-04-29
申请号：KR1020080103247
申请日：2008-10-21
Applicant: 삼성전자주식회사
CPC classification number: H04B10/1141 , H04B10/116
Abstract: PURPOSE: An optical signal concentrator and an optical receiver using the same are provided to be applied for a portable apparatus with a minimized structure by forming a light guiding plate and a diffusion sheet with a vertically arranged planar shape. CONSTITUTION: A diffusion sheet(210) diffuses and outputs optical signal. A light guiding plate(230) is arranged under the diffusion sheet and receives the light from the diffusion sheet. The light signal is guided to a vertical direction with respect to a light incident direction by the light guiding plate. A light detection unit(250) is arranged on the lateral side of the light guiding unit and detects the light from the light guiding unit. A reflector(240) is arranged under the light guiding unit and reflects the light from the light guiding unit.
Abstract translation: 目的：通过形成具有垂直布置的平面形状的导光板和漫射片，提供了一种光信号聚光器和使用该光信号聚光器的光接收器，用于具有最小结构的便携式设备。 构成：扩散片（210）扩散并输出光信号。 导光板（230）布置在扩散片的下面，并接收来自漫射片的光。 光信号通过导光板被引导到相对于光入射方向的垂直方向。 光检测单元（250）布置在导光单元的侧面上并检测来自导光单元的光。 反射器（240）布置在导光单元的下方并反射来自导光单元的光。
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公开(公告)号：KR1020090116200A
公开(公告)日：2009-11-11
申请号：KR1020080041995
申请日：2008-05-06
Applicant: 삼성전자주식회사
Abstract: PURPOSE: A method and an apparatus for converting a bit plane image, and a method and an apparatus for inversely converting a bit plane image are provided to increase correlation between adjacent pixels of a lower bit plane image during an image compressing process, thereby improving compression efficiency of the image. CONSTITUTION: A method for converting a bit plane image comprises the following steps. An input image is divided into n bit plane images(1010). n is a positive integer. a adjacent pixels in one direction between a column direction and a row direction are grouped to generate conversion processing units(1020). a is an integer larger than 1. Respective pixel values from a starting pixel to the bth pixel among a pixels in the conversion processing unit about each conversion processing unit are accumulated in the first direction selected between a plus direction and a minus direction. b is an integer smaller than a. Respective pixel values from the (b+1)th pixel to the final pixel in the conversion processing unit are accumulated in the second direction reverse to the first direction to convert pixel values of respective pixels in the conversion processing unit(1030).
Abstract translation: 目的：提供一种用于转换位平面图像的方法和装置，以及用于逆位转换位平面图像的方法和装置，以增加图像压缩处理期间较低位平面图像的相邻像素之间的相关性，从而提高压缩 图像的效率。 构成：用于转换位平面图像的方法包括以下步骤。 输入图像被分成n个位平面图像（1010）。 n是正整数。 在列方向和行方向之间的一个方向上的相邻像素被分组以生成转换处理单元（1020）。 a是大于1的整数。关于每个转换处理单元的转换处理单元中的像素之间的起始像素到第b像素的相应像素值在从正方向和负方向之间选择的第一方向上累积。 b是小于a的整数。 从第（b + 1）像素到转换处理单元中的最终像素的各像素值在与第一方向相反的第二方向上累积，以转换转换处理单元（1030）中的各像素的像素值。
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公开(公告)号：KR100895156B1
公开(公告)日：2009-05-04
申请号：KR1020070056679
申请日：2007-06-11
Applicant: 삼성전자주식회사
IPC: H04B10/116 , H04B10/40
Abstract: 본 발명은 가시광 통신 시스템에서의 데이터 송수신 방법에 있어서, 송신측에서 링크 제어를 위한 컨트롤 프레임(Control Frame)을 수신측으로 전송하는 과정과, 수신측에서 컨트롤 프레임을 수신하고 응답을 위해 ACK(Acknowledge) 프레임을 송신측으로 전송하는 과정과, 송신측에서 정보를 담은 데이터 프레임을 수신측으로 전송하는 과정과, 수신측에서 데이터 프레임을 수신하고 응답을 위해 ACK 프레임을 송신측으로 전송하는 과정을 포함하며, 상기 송신측 및 상기 수신측에서 통신을 위한 각 프레임을 전송하지 않는 시간에는 통신 링크에 가시성을 제공하기 위하여 가시 프레임(Visible Frame)을 상대방측으로 전송하는 것을 특징으로 한다.
가시광 통신, ACK, 프리앰블, OSI, Datalink layer, Visible Frame
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