公开(公告)号：US20100158047A1

公开(公告)日：2010-06-24

申请号：US12646622

申请日：2009-12-23

申请人： Hak Ju LEE ,  Yeon Ju Lim ,  Sung Ryul Yun ,  Jae Yoel Kim ,  Se Ho Myung

发明人： Hak Ju LEE ,  Yeon Ju Lim ,  Sung Ryul Yun ,  Jae Yoel Kim ,  Se Ho Myung

IPC分类号： H04L29/02

CPC分类号： H04N21/4348 ,  H04H20/103 ,  H04H20/59 ,  H04H60/06 ,  H04N21/23614

摘要： An apparatus and method for transmitting/receiving an urgent packet in a digital broadcast system is provided. A packet transmission apparatus of a digital broadcast transmitter includes a buffer which buffers broadcast packets; an urgent packet generator which generates an urgent packet having an urgent packet header indicating the urgent packet when a packet containing urgent data is detected; and a frame generator which generates a frame with the broadcast packets and inserts the urgent packet into the frame, wherein the urgent packet is substituted for one of broadcast packets in the frame.

摘要翻译： 提供了一种用于在数字广播系统中发送/接收紧急分组的装置和方法。 数字广播发射机的分组发送装置包括缓冲广播分组的缓冲器; 紧急分组生成器，当检测到包含紧急数据的分组时，生成具有指示紧急分组的紧急分组报头的紧急分组; 以及帧生成器，其生成具有广播分组的帧，并将紧急分组插入到帧中，其中紧急分组被替换为帧中的广播分组之一。

公开(公告)号：US20100202390A1

公开(公告)日：2010-08-12

申请号：US12700304

申请日：2010-02-04

申请人： Yeon Ju LIM ,  Jae Yoel KIM ,  Sung Ryul YUN ,  Hak Ju LEE ,  Se Ho MYUNG

发明人： Yeon Ju LIM ,  Jae Yoel KIM ,  Sung Ryul YUN ,  Hak Ju LEE ,  Se Ho MYUNG

IPC分类号： H04W72/12

CPC分类号： H04W72/1289 ,  H04W56/00 ,  H04W72/005 ,  Y02D70/00 ,  Y02D70/168

摘要： An in-band signaling method and apparatus of a mobile broadcast system supporting irregular interval broadcast services is provided for facilitating channel switching of a mobile device. An in-band signaling method for a mobile broadcast system according to the present invention includes generating scheduling information of Physical Layer Pipes (PLPs) transmitted at irregular intervals, the scheduling information including a next frame index and a first frame flag, inserting the scheduling information into a control information of a current frame and multiplexing broadcast service traffic of the PLPs and the control information.

摘要翻译： 提供支持不规则间隔广播服务的移动广播系统的带内信令方法和装置，用于促进移动设备的信道切换。 根据本发明的用于移动广播系统的带内信令方法包括生成以不规则间隔发送的物理层管道（PLP）的调度信息，所述调度信息包括下一帧索引和第一帧标志，插入调度信息 转换为当前帧的控制信息并且复用PLP的广播服务业务和控制信息。

公开(公告)号：US20100195758A1

公开(公告)日：2010-08-05

申请号：US12694801

申请日：2010-01-27

申请人： Sung Ryul YUN ,  Hak Ju LEE ,  Jae Yoel KIM ,  Yeon Ju LIM ,  Se Ho MYUNG

发明人： Sung Ryul YUN ,  Hak Ju LEE ,  Jae Yoel KIM ,  Yeon Ju LIM ,  Se Ho MYUNG

IPC分类号： H04L27/06 ,  H04L27/00

CPC分类号： H04L27/2618 ,  H04H20/78 ,  H04L5/0044

摘要： A Digital Video Broadcasting-Cable (DVB-C) system and a processing method for reserved tones are provided. A transmitter determines a position of broadcast data and a position of reserved tones in a frame and sends a broadcast signal into which the broadcast data and the reserved tones are inserted. A receiver determines the position of reserved tones in a received broadcast signal and extracts broadcast data from the broadcast signal in consideration of the determined position of the reserved tones. The system and method may compensate for the peak power of broadcast data to be transmitted through a multi-channel bundle, by inserting reserved tones into the whole multi-channel bundle with combined channel bands. This may reduce the Peak to Average Power Ratio (PAPR) of broadcast signals in the DVB-C system and thereby improve the performance of the DVB-C system while still adopting Orthogonal Frequency Division Multiplexing (OFDM).

摘要翻译： 提供数字视频广播电缆（DVB-C）系统和用于保留音调的处理方法。 发射机确定广播数据的位置和帧中的保留音调的位置，并发送广播信号，广播数据和保留音被插入到该广播信号中。 接收机在接收到的广播信号中确定保留音调的位置，并考虑到所保留的音调的确定位置，从广播信号中提取广播数据。 该系统和方法可以通过将保留的音调插入到具有组合信道频带的整个多信道束中来补偿要通过多信道束发送的广播数据的峰值功率。 这可能降低DVB-C系统中广播信号的峰均功率比（PAPR），从而提高DVB-C系统的性能，同时采用正交频分复用（OFDM）。