公开(公告)号：US20090161762A1

公开(公告)日：2009-06-25

申请号：US12093611

申请日：2006-11-15

Applicant: Dong-San Jun ,  Jung Won Kang ,  Yong-Ju Cho ,  Jae Gon Kim ,  Jin Woo Hong ,  Yong Man Ro ,  Tae Meon Bae ,  Duck-Yeon Kim ,  Hae-Chul Choi

Inventor： Dong-San Jun ,  Jung Won Kang ,  Yong-Ju Cho ,  Jae Gon Kim ,  Jin Woo Hong ,  Yong Man Ro ,  Tae Meon Bae ,  Duck-Yeon Kim ,  Hae-Chul Choi

IPC: H04N7/26

CPC classification number: H04N21/234327 ,  H04N19/107 ,  H04N19/134 ,  H04N19/147 ,  H04N19/157 ,  H04N19/177 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/34 ,  H04N19/36 ,  H04N19/58 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N19/89 ,  H04N21/2662 ,  H04N21/440227 ,  H04N21/440263

Abstract: Methods of coding a bitstream in which the frames are encoded for enabling a spatial resolution is changed in real time, extracting the bitstream by adding a signaling message indicating that the spatial resolution is changed, and decoding the bitstream in which the spatial resolution is changed in real time after actively detects whether the spatial resolution is changed without additional information, and a codec using the methods are provided. Therefore, if the network has the restricted environment that the resolution is changed in real time while a video encoding and decoding or if there is a need to output the video whose the spatial resolution is partly changed in the decoder, the present invention provides methods to actively cope with the spatial resolution change of the video so as to efficiently watch the video.

Abstract translation: 编码其中帧被编码以实现空间分辨率的比特流的方法被实时改变，通过添加指示空间分辨率改变的信令消息来提取比特流，并且解码其中空间分辨率改变的比特流 实时地检测空间分辨率是否改变而没有附加信息，并且提供使用这些方法的编解码器。 因此，如果网络具有在视频编码和解码时分辨率实时改变的限制环境，或者如果需要在解码器中输出空间分辨率部分改变的视频，则本发明提供了一种方法， 积极应对视频的空间分辨率变化，以便有效地观看视频。

公开(公告)号：US20090031021A1

公开(公告)日：2009-01-29

申请号：US12160246

申请日：2007-01-09

Applicant: Seong-Jun Bae ,  Yong-Ju Cho ,  Jae-Gon Kim ,  Jin-Woo Hong

Inventor： Seong-Jun Bae ,  Yong-Ju Cho ,  Jae-Gon Kim ,  Jin-Woo Hong

IPC: G06F15/16 ,  G06F15/173 ,  G06F17/30

CPC classification number: H04N19/00 ,  H04N19/34 ,  H04N21/234318 ,  H04N21/2662 ,  H04N21/64723 ,  H04N21/8451

Abstract: In the conventional content, a minimum access unit of the random access information is one frame unit. In the case of SVC video content, one frame consists of a plurality of scalable layers. The SVC data can be used for each salable layer only when the data is accessible for each scalable layer. The present invention provides a method and apparatus for transmitting and receiving an SVC file for each scalable layer wherein the SVC file can be accessed for each scalable layer by allowing metadata to contain a layer descriptor in a network abstraction layer unit (NALU) or in a byte unit.

Abstract translation: 在常规内容中，随机访问信息的最小访问单元是一帧单位。 在SVC视频内容的情况下，一帧由多个可缩放层组成。 仅当每个可伸缩层可访问数据时，SVC数据才能用于每个可销售层。 本发明提供了一种用于发送和接收每个可缩放层的SVC文件的方法和装置，其中可以通过允许元数据包含网络抽象层单元（NALU）中的层描述符或者在 字节单位。

公开(公告)号：US20050235157A1

公开(公告)日：2005-10-20

申请号：US10514641

申请日：2003-05-16

Applicant: Yong-Ju Cho ,  Sang-Woo Ahn ,  Ki-Sun Shin ,  Jin-Soo Choi ,  Jin-Woong Kim

Inventor： Yong-Ju Cho ,  Sang-Woo Ahn ,  Ki-Sun Shin ,  Jin-Soo Choi ,  Jin-Woong Kim

IPC: H04N5/445 ,  H04K1/00

CPC classification number: H04N5/44543 ,  H04N21/4345 ,  H04N21/4532 ,  H04N21/4667 ,  H04N21/4668 ,  H04N21/4753 ,  H04N21/4858

Abstract: Disclosed is a program recommendation system and method which receive PSIP/SI and programming information on digital broadcasting and provide a program recommendation service to viewers in an EPG application. The system receives personal information in order to set information of each viewer, confirms the received PSIP/SI information, and generates watching information through a viewer watching TV, in a predetermined format. In addition, the system inputs the generated watching information to a database, converts watching information of each viewer which is stored in the database input unit into divided input patterns using a fuzzy membership function to analyze the input patterns, and extracts information on a program with a high degree of preference from the analyzed result. Furthermore the system outputs preference program information of each viewer on a screen in order to recommend a program.

Abstract translation: 公开了接收PSIP / SI和数字广播节目信息的节目推荐系统和方法，并向EPG应用中的观众提供节目推荐服务。 系统接收个人信息以设置每个观众的信息，确认所接收的PSIP / SI信息，并且以预定格式通过观看TV观看者生成观看信息。 此外，系统将生成的观看信息输入到数据库，使用模糊隶属函数将存储在数据库输入单元中的每个观看者的观看信息转换成分割的输入模式，以分析输入模式，并且提取关于节目的信息 来自分析结果的高度偏好。 此外，系统在屏幕上输出每个观看者的偏好节目信息，以推荐节目。

公开(公告)号：US20140007175A1

公开(公告)日：2014-01-02

申请号：US14005297

申请日：2012-03-16

Applicant: Yong Ju Cho ,  Ji Hun Cha

Inventor： Yong Ju Cho ,  Ji Hun Cha

IPC: H04N21/6379

CPC classification number: H04N21/6379 ,  H04N21/2662 ,  H04N21/43637 ,  H04N21/44209 ,  H04N21/6131 ,  H04N21/6377

Abstract: The invention relates to method for estimating wireless channel status in wireless network, which is to be performed by client device connected to server for transmitting a video packet stream through a wired/wireless network, comprising: a step of estimating a bit error rate using additional information on a received video packet; and a step of estimating the channel capacity of the wireless network using the estimated bit error rate. The server receives, from the client device, feedback on the estimated channel capacity information or channel condition information of the wireless network, and adjusts the optimal video coding rate or the optimal source coding rate in a wireless network. Accordingly, the deterioration in the video quality of the video stream being received in the client device in real-time may be prevented to thereby improve the quality of service (QoS) of the video being received through a wireless network.

Abstract translation: 本发明涉及用于估计无线网络中的无线信道状态的方法，该无线网络将由连接到服务器的客户端设备通过有线/无线网络发送视频分组流来执行，该方法包括：使用附加的估计误码率的步骤 关于接收到的视频分组的信息; 以及使用估计的误码率来估计无线网络的信道容量的步骤。 服务器从客户端装置接收对无线网络的估计信道容量信息或信道状况信息的反馈，并且调整无线网络中的最佳视频编码率或最佳源编码率。 因此，可以防止在客户端设备中实时接收的视频流的视频质量的恶化，从而提高通过无线网络接收的视频的服务质量（QoS）。

公开(公告)号：US20130250975A1

公开(公告)日：2013-09-26

申请号：US13990903

申请日：2011-01-24

Applicant: Sang Woo Ahn ,  Yong Ju Cho

Inventor： Sang Woo Ahn ,  Yong Ju Cho

IPC: H04L29/06

CPC classification number: H04L69/04 ,  H04N21/23605 ,  H04N21/816 ,  H04N21/8453 ,  H04N21/8547

Abstract: A digital broadcasting system provides a method and device for packetizing a video stream. The packetizing device includes: a video frame check block for classifying an encoded video stream according to the frame type; a header setting block for setting a packet header for each of the classified frames; and a packetizing block for packetizing a video frame on the basis of the set packet header. The frame type may be one of an intra-coded (I) frame, a predicted (P) frame, and a bi-predictive (B) frame. Since a digital broadcasting stream is efficiently packetized, overhead due to a typical synchronization packet may be reduced, and accordingly, bandwidth may be efficiently used.

Abstract translation: 数字广播系统提供了一种用于打包视频流的方法和设备。 打包装置包括：视频帧检查块，用于根据帧类型对编码的视频流进行分类; 标题设置块，用于为每个分类帧设置分组报头; 以及分组化块，用于基于所设置的分组报头对视频帧进行分组。 帧类型可以是帧内编码（I）帧，预测（P）帧和双预测（B）帧之一。 由于数字广播流被高效地分组化，所以可以减少由于典型的同步分组引起的开销，因此可以有效地使用带宽。

公开(公告)号：US20100171882A1

公开(公告)日：2010-07-08

申请号：US12652123

申请日：2010-01-05

Applicant: Yong Ju CHO ,  Jin Woo HONG ,  Han Kyu LEE

Inventor： Yong Ju CHO ,  Jin Woo HONG ,  Han Kyu LEE

IPC: H04N5/217 ,  H04N7/12 ,  H04N5/44

CPC classification number: H04N19/67

Abstract: Provided are a method of tuning a coding rate and applying an unequal error protection for an adaptive video transmission, and a video transmission/reception apparatus using the method. The video transmission apparatus may include: a coding rate tuner to predict, as a channel capacity of a subsequent channel interval, an estimated channel capacity value fed back from the video reception apparatus, and to tune video and channel coding rates within the predicted channel capacity; a video encoder to perform video encoding of video frames at the tuned video coding rate, and to generate a video packet; and a forward error correction (FEC) encoder to apply the unequal error protection based on a length of the video packet and a type of the video frames included in the video packet, and to perform channel encoding of the video packet at the tuned channel coding rate to generate a bitstream.

Abstract translation: 提供了一种调整编码率并对自适应视频传输应用不相等的错误保护的方法，以及使用该方法的视频发送/接收装置。 视频发送装置可以包括：编码率调谐器，用于预测作为后续信道间隔的信道容量的从视频接收装置反馈的估计信道容量值，以及调整预测信道容量内的视频和信道编码率 ; 视频编码器，用于以调谐的视频编码速率执行视频帧的视频编码，并产生视频分组; 以及前向纠错（FEC）编码器，用于基于视频分组的长度和包括在视频分组中的视频帧的类型来应用不相等的错误保护，并且以调谐的信道编码执行视频分组的信道编码 以产生比特流。

公开(公告)号：US20090222486A1

公开(公告)日：2009-09-03

申请号：US12160257

申请日：2007-01-09

Applicant: Seong-Jun Bae ,  Yong-Ju Cho ,  Jae-Gon Kim ,  Jin-Woo Hong

Inventor： Seong-Jun Bae ,  Yong-Ju Cho ,  Jae-Gon Kim ,  Jin-Woo Hong

IPC: G06F17/00

CPC classification number: H04N5/91 ,  H04N9/8205 ,  H04N19/00 ,  H04N19/34 ,  H04N21/234318 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/64723 ,  H04N21/8451 ,  H04N21/85406 ,  Y10S707/914

Abstract: A method of sharing data of a scalable video coding (SVC) file and the SVC file are provided. The SVC file includes: a scalable base track including at least one scalable layer entry each storing metadata of the at least one scalable layer; and at least one sub track generated based on the scalable base track, which includes identification information of the scalable layer that is a basis of generation of a sub track among the scalable layers and identification information of the scalable base track instead of the scalable layer entry. Accordingly, when an SVC coded content is stored as a file, it is possible to reduce a storage capacity by avoiding duplication of common data and to provide convenience when the stored content is reprocessed by allowing a relation of tracks correlated to one another to be represented.

Abstract translation: 提供了可分级视频编码（SVC）文件和SVC文件共享数据的方法。 所述SVC文件包括：可扩展基础轨道，其包括至少一个可缩放层条目，每一个存储所述至少一个可伸缩层的元数据; 以及至少一个基于所述可伸缩基础轨道生成的子轨道，所述至少一个子轨道包括作为所述可伸缩层中的子轨道的生成的基础的所述可伸缩层的标识信息和所述可伸缩基础轨道的标识信息，而不是所述可伸缩层条目 。 因此，当SVC编码的内容被存储为文件时，可以通过避免公共数据的重复来减少存储容量，并且当通过允许彼此相关的轨道的关系被表示来重新处理存储的内容时提供方便 。

公开(公告)号：US08654834B2

公开(公告)日：2014-02-18

申请号：US12652123

申请日：2010-01-05

Applicant: Yong Ju Cho ,  Jin Woo Hong ,  Han Kyu Lee

Inventor： Yong Ju Cho ,  Jin Woo Hong ,  Han Kyu Lee

IPC: H04B1/66 ,  H04N7/12

CPC classification number: H04N19/67

Abstract: Provided are a method of tuning a coding rate and applying an unequal error protection for an adaptive video transmission, and a video transmission/reception apparatus using the method. The video transmission apparatus may include: a coding rate tuner to predict, as a channel capacity of a subsequent channel interval, an estimated channel capacity value fed back from the video reception apparatus, and to tune video and channel coding rates within the predicted channel capacity; a video encoder to perform video encoding of video frames at the tuned video coding rate, and to generate a video packet; and a forward error correction (FEC) encoder to apply the unequal error protection based on a length of the video packet and a type of the video frames included in the video packet, and to perform channel encoding of the video packet at the tuned channel coding rate to generate a bitstream.

Abstract translation: 提供了一种调整编码率并对自适应视频传输应用不相等的错误保护的方法，以及使用该方法的视频发送/接收装置。 视频发送装置可以包括：编码率调谐器，用于预测作为后续信道间隔的信道容量的从视频接收装置反馈的估计信道容量值，以及调整预测信道容量内的视频和信道编码率 ; 视频编码器，用于以调谐的视频编码速率执行视频帧的视频编码，并产生视频分组; 以及前向纠错（FEC）编码器，用于基于视频分组的长度和包括在视频分组中的视频帧的类型来应用不相等的错误保护，并且以调谐的信道编码执行视频分组的信道编码 以产生比特流。

公开(公告)号：US20120092440A1

公开(公告)日：2012-04-19

申请号：US13275542

申请日：2011-10-18

Applicant: Yong Ju CHO ,  Ji Hun CHA ,  Jin Woong KIM

Inventor： Yong Ju CHO ,  Ji Hun CHA ,  Jin Woong KIM

IPC: H04N7/14

CPC classification number: H04N7/144

Abstract: A video communication apparatus in which eye contact can be made with an opposite party of a conversation is provided. The video communication apparatus includes: a monitor unit for video communication; and a camera unit for capturing an image of a user, wherein the monitor unit repeats mode switching between a video mode and a transparent mode according to a specific period, and wherein the camera unit is located behind the monitor unit and captures the image of the user by using a screen of the monitor unit. Accordingly, eye contact can be made with the opposite party when users who participate in video communication talk to each other while seeing communication images.

Abstract translation: 提供了一种视频通信设备，其中可以与会话的对方进行眼睛接触。 视频通信装置包括：用于视频通信的监视单元; 以及用于捕获用户的图像的相机单元，其中所述监视器单元根据特定周期重复在视频模式和透明模式之间的模式切换，并且其中所述相机单元位于所述监视器单元的后面并且捕获所述图像的图像 用户通过使用监视器单元的屏幕。 因此，当参与视频通信的用户在看到通信图像时相互对话时，可以与对方进行眼睛接触。

公开(公告)号：US07987216B2

公开(公告)日：2011-07-26

申请号：US12160257

申请日：2007-01-09

Applicant: Seong-Jun Bae ,  Yong-Ju Cho ,  Jae-Gon Kim ,  Jin-Woo Hong

Inventor： Seong-Jun Bae ,  Yong-Ju Cho ,  Jae-Gon Kim ,  Jin-Woo Hong

IPC: G06F12/00 ,  H04N7/12 ,  H04N5/917

CPC classification number: H04N5/91 ,  H04N9/8205 ,  H04N19/00 ,  H04N19/34 ,  H04N21/234318 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/64723 ,  H04N21/8451 ,  H04N21/85406 ,  Y10S707/914

Abstract: A method of sharing data of a scalable video coding (SVC) file and the SVC file are provided. The SVC file includes: a scalable base track including at least one scalable layer entry each storing metadata of the at least one scalable layer; and at least one sub track generated based on the scalable base track, which includes identification information of the scalable layer that is a basis of generation of a sub track among the scalable layers and identification information of the scalable base track instead of the scalable layer entry. Accordingly, when an SVC coded content is stored as a file, it is possible to reduce a storage capacity by avoiding duplication of common data and to provide convenience when the stored content is reprocessed by allowing a relation of tracks correlated to one another to be represented.

Abstract translation: 提供了可分级视频编码（SVC）文件和SVC文件共享数据的方法。 所述SVC文件包括：可扩展基础轨道，其包括至少一个可缩放层条目，每一个存储所述至少一个可伸缩层的元数据; 以及至少一个基于所述可伸缩基础轨道生成的子轨道，所述至少一个子轨道包括作为所述可伸缩层中的子轨道的生成的基础的所述可伸缩层的标识信息和所述可伸缩基础轨道的标识信息，而不是所述可伸缩层条目 。 因此，当SVC编码的内容被存储为文件时，可以通过避免公共数据的重复来减少存储容量，并且当通过允许彼此相关的轨道的关系被表示来重新处理存储的内容时提供方便 。