公开(公告)号：WO2005101840A3

公开(公告)日：2006-02-23

申请号：PCT/US2005012424

申请日：2005-04-11

Applicant: DIRECTV GROUP INC

Inventor： LEE LIN-NAN ,  SUN FENG-WEN ,  VON ANCKEN ADAM ,  SANTORU JOSEPH A ,  CHEN ERNEST C ,  MAITRA SHAMIK ,  LAI DENNIS ,  ZHOU GUANGCAI ,  LIN TUNG-SHENG

IPC: H04B7/185 ,  H04H1/00 ,  H04H20/51 ,  H04J13/00 ,  H04L25/03 ,  H04N5/21 ,  H04B1/69

CPC classification number: H04N5/211 ,  H04B7/18513 ,  H04H20/51 ,  H04L25/03866

Abstract: An approach is provided for minimizing co-channel interference in a communication system (100) is disclosed. A header (401) of a first frame is scrambled based on a first unique word (411, 413). A header (401) of a second frame is scrambled based on a second unique word (411, 413). The first frame including the corresponding scrambled header (401) and the second frame including the corresponding scrambled header (401) are transmitted, respectively, over adjacent co-channels of the communication system (100). Each of the frames further includes a payload (403) and a pilot block (405). The payload (403) and the pilot black (405) of the first frame are scrambled based on a first scrambling sequence. The payload (403) and the pilot black (405) of the second frame are scrambled based on a second scrambling sequence. The above arrangement is particularly suited to a digital satellite broadcast and interactive system (100).

Abstract translation: 公开了一种用于最小化通信系统（100）中的同信道干扰的方法。 基于第一唯一字（411,413）对第一帧的头（401）进行加扰。 基于第二唯一字（411,413）对第二帧的报头（401）进行加扰。 分别在通信系统（100）的相邻共同信道上发送包括对应的加扰报头（401）和包括对应的加扰报头（401）的第二帧的第一帧。 每个帧还包括有效载荷（403）和导频块（405）。 基于第一加扰序列对第一帧的有效载荷（403）和导频黑（405）进行加扰。 基于第二加扰序列对第二帧的有效负载（403）和导频黑（405）进行加扰。 上述布置特别适用于数字卫星广播和交互式系统（100）。

公开(公告)号：WO2005101840A2

公开(公告)日：2005-10-27

申请号：PCT/US2005/012424

申请日：2005-04-11

Applicant: THE DIRECTV GROUP, INC.

Inventor： LEE, Lin-Nan ,  SUN, Feng-Wen ,  VON ANCKEN, Adam ,  SANTORU, Joseph, A. ,  CHEN, Ernest, C. ,  MAITRA, Shamik ,  LAI, Dennis ,  ZHOU, Guangcai ,  LIN, Tung-Sheng

IPC: H04N7/167

CPC classification number: H04N5/211 ,  H04B7/18513 ,  H04H20/51 ,  H04L25/03866

Abstract: An approach is provided for minimizing co-channel interference in a communication system (100) is disclosed. A header (401) of a first frame is scrambled based on a first unique word (411, 413). A header (401) of a second frame is scrambled based on a second unique word (411, 413). The first frame including the corresponding scrambled header (401) and the second frame including the corresponding scrambled header (401) are transmitted, respectively, over adjacent co-channels of the communication system (100). Each of the frames further includes a payload (403) and a pilot block (405). The payload (403) and the pilot black (405) of the first frame are scrambled based on a first scrambling sequence. The payload (403) and the pilot black (405) of the second frame are scrambled based on a second scrambling sequence. The above arrangement is particularly suited to a digital satellite broadcast and interactive system (100).

Abstract translation: 公开了一种用于最小化通信系统（100）中的同信道干扰的方法。 基于第一唯一字（411,413）对第一帧的报头（401）进行加扰。 基于第二唯一字（411,413）对第二帧的报头（401）进行加扰。 分别在通信系统（100）的相邻共同信道上发送包括对应的加扰报头（401）和包括对应的加扰报头（401）的第二帧的第一帧。 每个帧还包括有效载荷（403）和导频块（405）。 基于第一加扰序列对第一帧的有效载荷（403）和导频黑（405）进行加扰。 基于第二加扰序列对第二帧的有效负载（403）和导频黑（405）进行加扰。 上述布置特别适用于数字卫星广播和交互式系统（100）。

公开(公告)号：WO0239628A3

公开(公告)日：2003-01-03

申请号：PCT/DE0103860

申请日：2001-10-09

Applicant: BOSCH GMBH ROBERT ,  NABERFELD FRANK

Inventor： NABERFELD FRANK

IPC: H04B1/16 ,  H04H20/51 ,  H04H40/90 ,  H04H1/00

CPC classification number: H04H20/22 ,  H04H20/51 ,  H04H2201/20

Abstract: The invention relates to a method for synchronizing a radio receiver to radio signals, according to which a locating signal, preferably a GPS signal, is used for correcting the synchronization of the radio receiver to the received radio signals. The correction is carried out with a filter that can preferably be a Kalman filter. The locating device determines a velocity vector and/or corrects the on-board clock pulse if necessary.

Abstract translation: 它提出了一种用于无线电接收器，以无线电信号，其特征在于定位信号，优选使用一个GPS信号用于校正无线电接收器的同步于所接收的无线电信号的同步的方法。 校正用的滤波器，其可以优选地是卡尔曼滤波器进行的。 与定位装置，一个速度矢量被确定和/或机载时钟在必要时进行校正。

公开(公告)号：WO0156201A3

公开(公告)日：2002-11-14

申请号：PCT/EP0100876

申请日：2001-01-26

Applicant: FRAUNHOFER GES FORSCHUNG ,  PERTHOLD RAINER ,  GERHAEUSER HEINZ

Inventor： PERTHOLD RAINER ,  GERHAEUSER HEINZ

IPC: H04B7/185 ,  H04H20/51 ,  H04H1/00 ,  H04J3/00

CPC classification number: H04B7/18517 ,  H04H20/10 ,  H04H20/51 ,  H04H2201/19

Abstract: The invention relates to a ground station (10) for generating a data stream (20) that comprises a main program and an additional program. Said ground station comprises a memory (12) that stores the additional program, which is for example a commercial, while the main program is a radio program produced in a sound studio. The ground station further comprises a multiplexer (14) with a first input (14a) for receiving the main program and a second input (14b) for receiving the additional program from the memory, and with an output. A control device (16) for controlling the multiplexer (14) switches, at a first interval, an output (14c) of the multiplexer (14) from the first input to the second input and at a second interval from the second input back to the first input, thereby inserting the additional program into the main program between the first interval and the second interval. The ground station further comprises a transmitter device (18) that is connected to the output of the multiplexer (14) on the input side and that is connected to a transmitting antenna (22) on the output side so as to provide the transmitting antenna with the data stream (20). The inventive method provides a simple means for inserting commercials into the data stream without requiring special devices in the sound studio. The ground station can easily detect at which intervals commercials were inserted. The commercials can be exchanged or updated via an optional remote maintenance device of the ground station with little effort.

Abstract translation: 地面站（10），用于生成包括主节目的数据流（20）和一个附加程序，包括用于存储所述辅助程序，其是例如在商业的存储器（12），而主节目是在声音工作室广播节目产生的信号。 地面站还包括具有用于接收所述主程序以及用于从所述存储器和输出接收的补充方案（14B）的第二输入端的第一输入端（14a）的一个多路复用器（14）。 它进一步用于控制多路复用器（14）的控制装置（16）被提供，以使多路复用器的输出（图14C）（14）中的时刻的第一输入的第一时间连接到所述第二输入端和第二点 被切换到所述第二输入到第一输入键上的第一次和在主程序中的第二时间之间的附加程序。 地面站最后包括具有连接到多路转换器（14）的输出的输入侧的传输装置（18），并且其具有的输出连接到一个发送天线（22）提供的发送天线的数据流（20）。 在根据本发明的商业广告以简单的方式可以被键入到数据流中，而不需要特殊的设备，需要在录音棚。 地面站也能够容易地检测该被键入时的商业广告。 商业广告最终可替换或与地面站的可选的远程维护装置容易地更新。