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    • 3. 发明授权
    • Digital broadcast transmission/reception apparatus for rapid channel change
    • 用于快速频道改变的数字广播发送/接收装置
    • US08532146B2
    • 2013-09-10
    • US11505082
    • 2006-08-16
    • Han-Sang KimKwan-Woong SongYoung-Hun JooYong-Deok KimKyung-Ho Chae
    • Han-Sang KimKwan-Woong SongYoung-Hun JooYong-Deok KimKyung-Ho Chae
    • H04H20/28
    • H04H20/28H04H60/07H04N21/2362H04N21/4345
    • Disclosed is a digital broadcasting transmission apparatus for rapid channel change to an A/V stream of a predetermined channel, the apparatus including a program specific information (PSI) generation unit for generating PSI of the A/V stream, a PSI length detection unit for detecting a length of the PSI generated by the PSI generation unit; a channel information (CI) generation unit for generating CI which includes PSI of all digital broadcasting channels input to the digital broadcasting transmission apparatus, a CI insertion unit for dividing and inserting the CI generated by the CI generation unit into a PSI transmission area generated by the PSI generation unit, according to the length information detected by the PSI length detection unit, and a transport stream (TS) multiplexing unit for multiplexing and outputting the A/V stream and an output of the CI insertion unit.
    • 公开了一种数字广播传输装置,用于将信道快速切换到预定信道的A / V流,该装置包括用于产生A / V流的PSI的节目专用信息(PSI)生成单元,PSI长度检测单元,用于 检测由PSI生成单元生成的PSI的长度; 用于产生CI的信道信息(CI)生成单元,其包括输入到数字广播发送装置的所有数字广播信道的PSI; CI插入单元,用于将由CI生成单元生成的CI分割和插入到由 PSI生成单元,根据由PSI长度检测单元检测出的长度信息,以及用于复用和输出A / V流的传输流(TS)复用单元和CI插入单元的输出。
    • 6. 发明授权
    • Optical network for bi-directional wireless communication
    • 用于双向无线通信的光网络
    • US08046815B2
    • 2011-10-25
    • US11192599
    • 2005-07-29
    • Yong-Deok KimChang-Sup ShimJun-Ho Koh
    • Yong-Deok KimChang-Sup ShimJun-Ho Koh
    • H04N7/173
    • H04N21/2402H04L1/0014H04N7/22H04N21/23418H04N21/234309H04N21/23439H04N21/25833H04N21/2662H04N21/64769
    • A method for transmitting video data to the users via a network in a transcoder of an image processing system including a storage media having a predetermined amount of storage area is disclosed. The method includes the steps of storing in the storage media, the video data provided based on the corresponding services, monitoring a traffic condition of the network to determine if transcoding is necessary; transmitting the stored video data to the corresponding users, respectively, via the network, when the transcoding is not necessary; and transcoding the stored video data to transmit the video data to the corresponding users, respectively, when the transcoding is necessary. The video data provided is based on the corresponding services includes image information having the highest quality of service from a content provider.
    • 公开了一种通过包括具有预定量的存储区域的存储介质的图像处理系统的代码转换器中的网络经由网络向用户发送视频数据的方法。 该方法包括以下步骤:在存储介质中存储基于相应服务提供的视频数据,监视网络的业务状况以确定是否需要转码; 当不需要转码时,通过网络分别将存储的视频数据发送给对应的用户; 并且当需要转码时,分别对存储的视频数据进行代码转换以将视频数据发送给相应的用户。 提供的视频数据基于相应的服务,包括具有来自内容提供商的最高服务质量的图像信息。
    • 8. 发明申请
    • Retransmission apparatus using IP multicasting method for DMB service
    • 使用IP组播方式进行DMB业务的重传设备
    • US20070165628A1
    • 2007-07-19
    • US11644552
    • 2006-12-21
    • Jeong-Seok ChoiYoung-Hun JooYong-Deok KimKyung-Ho ChaeYun-Je Oh
    • Jeong-Seok ChoiYoung-Hun JooYong-Deok KimKyung-Ho ChaeYun-Je Oh
    • H04L12/56
    • H04L12/189H04H40/18H04H60/82H04L1/0007H04L12/1863H04L29/06027H04L65/4076H04L65/605
    • A retransmission apparatus using an IP multicasting method for a DMB service including a plurality (n) of radio frequency (RF) receivers, each for receiving a DMB RF signal of a corresponding channel, a plurality (n) of DMB decoders, each for outputting a transport stream (TS) by decoding the DMB RF signal received from a corresponding RF receiver, a plurality (n) of slicers, each for processing the TS input from a corresponding DMB decoder; a plurality (n) of network interfacers, each for IP packetizing the TS sliced by a corresponding slicer; a network switch for receiving the IP packets from the plurality (n) of network interfacers, transferring the received IP packets to a multicasting processing unit, and receiving multicasting data from the multicasting processing unit, and the multicasting processing unit for receiving the IP packets from the network switch, creating a single piece of multicasting data by assigning multicasting addresses to the received IP packets, and outputting the created multicasting data to the network switch.
    • 一种使用包含多个(n)个射频(RF)接收机的DMB业务的IP组播方法的重传装置,每个用于接收对应信道的DMB RF信号,多个(D)个DMB解码器,用于输出 通过解码从对应的RF接收机接收的DMB RF信号的传输流(TS),多个(n)个限幅器,每个用于处理来自相应的DMB解码器的TS输入; 多个(n)个网络接口,每个用于IP分组化由对应的限幅器切片的TS; 用于从所述多个网络接口接收所述IP分组的网络交换机,将接收到的IP分组传送到多播处理单元,以及从所述多播处理单元接收组播数据;以及所述多播处理单元,用于从所述多播处理单元接收所述IP分组 网络交换机,通过向接收到的IP分组分配多播地址来创建单个组播数据,并将创建的组播数据输出到网络交换机。
    • 9. 发明申请
    • Mobile device positioning system and method of operating the same
    • 移动设备定位系统和操作方法相同
    • US20070087773A1
    • 2007-04-19
    • US11581601
    • 2006-10-17
    • Jung-min YoonYong-deok KimByung-seog BaekJoung-hoon Choo
    • Jung-min YoonYong-deok KimByung-seog BaekJoung-hoon Choo
    • H04Q7/20H04B7/00
    • H04W52/283G01S5/0036
    • A mobile device positioning system and a method of operating the same are provided that can reduce the power consumption of the mobile device. The position-information transmitting apparatus of the mobile device includes a data-receiving module receiving positioning data from a mobile device, a moving-speed calculation module calculating a moving speed of the mobile device according to the received data, and generating transmission time interval information to transmit the data for positioning according to the calculated moving speed, a data-transmitting module transmitting the generated transmission time interval information and the position information of the mobile device to the mobile device, and a load-adjustment module determining a load according to the mobile device having requested the position information, and adjusting the generated transmission time interval information according to the determined load.
    • 提供一种移动设备定位系统及其操作方法,可以降低移动设备的功耗。 移动装置的位置信息发送装置包括从移动装置接收定位数据的数据接收模块,移动速度计算模块,根据接收到的数据计算移动装置的移动速度,生成发送时间间隔信息 根据计算出的移动速度发送用于定位的数据,数据发送模块,将所生成的发送时间间隔信息和移动装置的位置信息发送给移动装置,负载调整模块根据所述移动装置确定负载 移动设备已经请求了位置信息,并且根据所确定的负载调整所生成的传输时间间隔信息。
    • 10. 发明申请
    • Device for filtering out null packet for MPEG-2 transmission
    • 用于过滤出用于MPEG-2传输的空分组的装置
    • US20050047341A1
    • 2005-03-03
    • US10771942
    • 2004-02-04
    • Yong-Deok KimJun-Ho KohChan-Yul KimYun-Je Oh
    • Yong-Deok KimJun-Ho KohChan-Yul KimYun-Je Oh
    • H04N7/12H04L12/28
    • H04N21/23611
    • Disclosed is a device for filtering out a null packet in a data stream for example an MPEG-2 TS (Transport Stream) to avoid bandwidth waste when it is transmitted to a backbone network. The device includes a plurality of receiving interfaces, a filter unit, and a controller. The receiving interfaces receive parallel data, such as DVB-ASI (Digital Video Broadcasting-Asynchronous Serial Interface) inputs as channel-by-channel MPEG-2 data. The filter unit counts the respective numbers of data packets and non-data packets of the data input from the receiving interfaces and filters a null packet in the data. A network transmission unit transmits the filtered data to a backbone network. The controller calculates a bit rate based on both of the count numbers received from the filter unit.
    • 公开了一种用于过滤出例如MPEG-2TS(传输流)的数据流中的零分组的装置,以避免在传输到骨干网络时的带宽浪费。 该装置包括多个接收接口,滤波器单元和控制器。 接收接口接收并行数据,例如作为逐个通道MPEG-2数据的DVB-ASI(数字视频广播 - 异步串行接口)输入。 滤波器单元对从接收接口输入的数据的数据分组和非数据分组的数量进行计数,并对数据中的零分组进行过滤。 网络传输单元将过滤的数据发送到骨干网络。 控制器基于从滤波器单元接收的两个计数值计算比特率。