公开(公告)号：US20080064324A1

公开(公告)日：2008-03-13

申请号：US11466899

申请日：2006-08-24

申请人： Axel Nix

发明人： Axel Nix

IPC分类号： H04H1/00 ,  G08G1/123

CPC分类号： H04B7/18523 ,  H04B7/18517 ,  H04H20/93 ,  H04H40/90 ,  H04H60/51 ,  H04H60/91

摘要： A data messaging system includes a satellite radio receiver configured to receive a message including a message identifier and two or more filter criteria and to process the message to generate a processed message according to the message identifier and the two or more filter criteria. A telematic unit is coupled to the satellite radio receiver. The telematic unit is configured to provide positional data to the satellite radio receiver. A body control module is also coupled to the satellite radio receiver. The body control module is configured to provide vehicle information to the satellite radio receiver. A display, coupled to the satellite radio receiver, is configured to display the processed message.

摘要翻译： 数据消息传送系统包括卫星无线电接收机，其被配置为接收包括消息标识符和两个或多个过滤标准的消息，并且根据消息标识符和两个或多个过滤标准来处理消息以生成经处理的消息。 远程信息处理单元耦合到卫星无线电接收机。 远程信息处理单元被配置为向卫星无线电接收机提供位置数据。 身体控制模块也耦合到卫星无线电接收机。 身体控制模块被配置为向卫星无线电接收机提供车辆信息。 耦合到卫星无线电接收机的显示器被配置为显示经处理的消息。

公开(公告)号：US20080018802A1

公开(公告)日：2008-01-24

申请号：US11692702

申请日：2007-03-28

申请人： Tommy Yu

发明人： Tommy Yu

IPC分类号： H04N5/455

CPC分类号： H04H40/90 ,  H03M13/1165 ,  H04B7/18523 ,  H04L5/0048 ,  H04L27/2613 ,  H04N7/20 ,  Y02D70/168 ,  Y02D70/446

摘要： Certain aspects of a method and system for satellite communication are disclosed. Aspects of one method may include a receiver that handles digital video broadcasting. The receiver may be enabled to dynamically vary spacing between one or more pilots within at least one frame based on a determined symbol rate. The size of each of a plurality of received programs may be determined and the spacing between one or more pilots may be dynamically varied based on the determined size of each of the plurality of received programs.

摘要翻译： 公开了用于卫星通信的方法和系统的某些方面。 一种方法的方面可以包括处理数字视频广播的接收机。 可以使接收机能够基于所确定的符号速率动态地改变至少一个帧内的一个或多个导频之间的间隔。 可以确定多个接收节目中的每一个的大小，并且可以基于所确定的多个接收节目中的每一个的大小来动态地改变一个或多个导频之间的间隔。

公开(公告)号：US07319808B2

公开(公告)日：2008-01-15

申请号：US10367730

申请日：2003-02-19

申请人： Hiroo Okamoto ,  Kyoichi Hosokawa ,  Hitoaki Owashi ,  Hiroaki Tachibana ,  Takaharu Noguchi

发明人： Hiroo Okamoto ,  Kyoichi Hosokawa ,  Hitoaki Owashi ,  Hiroaki Tachibana ,  Takaharu Noguchi

IPC分类号： H04N7/26 ,  H04N5/91

CPC分类号： H04N7/173 ,  G11B15/087 ,  G11B15/4731 ,  G11B15/52 ,  G11B20/1211 ,  G11B20/1813 ,  G11B27/005 ,  G11B27/032 ,  G11B27/3027 ,  G11B27/3036 ,  G11B27/3063 ,  G11B2220/90 ,  G11B2220/91 ,  H04B7/18523 ,  H04L12/64 ,  H04N5/775 ,  H04N7/106 ,  H04N7/1675 ,  H04N9/7921 ,  H04N9/8042 ,  H04N9/8233 ,  H04N9/877 ,  H04N21/4325 ,  H04N21/4334 ,  H04N2005/91321

摘要： A video signal input-output circuit and a recording-reproduction apparatus in which a digitally compressed video signal input in packet form can be recorded and reproduced efficiently and in stable fashion. In this apparatus, a clock reference is detected from a packet signal containing the clock reference and a digitally compressed video signal, a time stamp for a packet is generated using a clock signal in phase with the clock reference and added to the particular packet, and the packet signals with the time stamp added thereto are recorded closely to each other in a data storage element such as a magnetic recording medium. At playback, the packet interval is output by being restored to the original length on the basis of the time stamp added to the packet in store.

公开(公告)号：US07295805B2

公开(公告)日：2007-11-13

申请号：US10931453

申请日：2004-09-01

申请人： Glenn A. Walker ,  Eric A. Dibiaso

发明人： Glenn A. Walker ,  Eric A. Dibiaso

IPC分类号： H04H1/00

CPC分类号： H04H20/40 ,  H04B7/18523 ,  H04W28/14 ,  H04W84/06 ,  H04W88/02

摘要： A digital radio receiver system and method are provided for receiving signals from multiple transmission sources and providing dynamic data buffering. The system includes an antenna for receiving signals from multiple sources, a tuner for selecting certain frequency signals, and a digital demodulator for demodulating the tuned selected signals. The system also includes a memory buffer having memory locations and capable of storing data clusters. The system further has a controller for controlling the cluster of data stored in the memory buffer. The controller selects from at least first and second clusters of data, depending strength of signal of a received buffer source.

摘要翻译： 提供了一种用于从多个传输源接收信号并提供动态数据缓冲的数字无线电接收机系统和方法。 该系统包括用于从多个源接收信号的天线，用于选择某些频率信号的调谐器，以及用于解调所调谐的选择信号的数字解调器。 该系统还包括具有存储器位置并且能够存储数据簇的存储器缓冲器。 该系统还具有用于控制存储在存储器缓冲器中的数据簇的控制器。 控制器根据所接收的缓冲器源的信号的强度从至少第一和第二数据簇中选择。

公开(公告)号：US07280662B2

公开(公告)日：2007-10-09

申请号：US10700208

申请日：2003-11-03

申请人： Glenn A. Walker ,  Jerral A. Long ,  William E. Dyson

发明人： Glenn A. Walker ,  Jerral A. Long ,  William E. Dyson

IPC分类号： H04K1/00 ,  H04N1/44 ,  H04N7/10 ,  H04N7/173 ,  G06F11/30 ,  G06F12/14 ,  H04L9/32

CPC分类号： H04B7/18523

摘要： A satellite-based digital audio radio (SDAR) receiver is configured to temporarily store data that may be transmitted to the SDAR receiver at a time inconvenient to the subscriber. A memory arrangement buffers data output by a channel decoder. The SDAR receiver can use the buffered data prior to using any currently transmitted data. The buffered data is associated with buffered timing information that lags behind the current timing information associated with the currently transmitted data. The buffered data is available for use only once before a decryption subsystem receives the current timing information. If the subscriber uses the currently transmitted data, the decryption subsystem receives the current timing information. The decryption subsystem decrypts only data that is associated with timing information that is no earlier than the latest timing information received by the decryption subsystem. Accordingly, the buffered data becomes unavailable once the decryption subsystem receives the current timing information.

摘要翻译： 基于卫星的数字音频无线电（SDAR）接收机被配置为临时存储可能在对用户不方便的情况下发送到SDAR接收机的数据。 存储装置缓冲由信道解码器输出的数据。 在使用任何当前传输的数据之前，SDAR接收器可以使用缓冲的数据。 缓冲的数据与缓冲的定时信息相关联，该信息落后于与当前发送的数据相关联的当前定时信息。 缓冲数据仅在解密子系统收到当前定时信息之前才可使用一次。 如果订户使用当前发送的数据，则解密子系统接收当前的定时信息。 解密子系统仅解密与不早于解密子系统接收到的最新定时信息的定时信息相关联的数据。 因此，一旦解密子系统接收当前的定时信息，缓冲的数据就变得不可用。

公开(公告)号：US07236738B2

公开(公告)日：2007-06-26

申请号：US10632483

申请日：2003-08-01

申请人： Timothy F. Settle

发明人： Timothy F. Settle

IPC分类号： H04H1/00

CPC分类号： H04B7/18586 ,  H04B7/18523 ,  H04B7/18526 ,  H04B7/18578 ,  H04W28/20 ,  H04W80/06 ,  H04W84/06

摘要： Methods and systems to efficiently share multiple satellites and associated transponders or links among a network of uplinking earth stations are disclosed. An embodiment of this invention uses a terrestrial communications link, such as the Internet, to control access to the transponder or satellite links. Communications over this link may employ a TCP/IP protocol to connect the requesting uplinking earth stations with a centralized controller. This control system creates more efficient use of satellite resources and reduces the overall amount of time needed for transmitting data through the satellite. By reducing the overall amount of time needed for transmitting data, the control system may reduce the cost of using the satellite transponder capacity.

摘要翻译： 公开了在上行链路地球站网络之间有效地共享多个卫星和相关联的应答器或链路的方法和系统。 本发明的一个实施例使用诸如因特网之类的地面通信链路来控制对应答器或卫星链路的接入。 通过该链路的通信可以采用TCP / IP协议来将请求的上行地球站与集中控制器连接。 该控制系统可以更有效地利用卫星资源，并减少通过卫星传输数据所需的总时间。 通过减少发送数据所需的总时间，控制系统可以降低使用卫星转发器容量的成本。

公开(公告)号：US20070133725A1

公开(公告)日：2007-06-14

申请号：US11636243

申请日：2006-12-08

申请人： Tae-Hoon Kim ,  Pan-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Seong-Jun Lee

发明人： Tae-Hoon Kim ,  Pan-Soo Kim ,  Dae-Ig Chang ,  Deock-Gil Oh ,  Seong-Jun Lee

IPC分类号： H04N7/20 ,  H04L7/00

CPC分类号： H04B7/18523 ,  H04L27/2657 ,  H04L27/2672 ,  H04L27/2676

摘要： Provided are an apparatus and method for correcting a frequency offset in a satellite digital video broadcasting system. The apparatus includes: a frequency response transformer for receiving a satellite digital video broadcasting signal and acquiring a plurality of frequency responses divided into a positive frequency part and a negative frequency part; a rotation/difference value calculation unit for selecting one of the plurality of frequency responses inputted from the frequency response transformer and calculating a first area difference value indicating a difference in area between the positive frequency part and the negative frequency part without rotation for the selected frequency response, and calculating a second area difference value indicating a difference in area between the positive frequency component and the negative frequency component with rotation for the remaining frequency responses; a zero intersection point calculator for dividing an average slope of a straight line formed by the first area difference value and the second area difference value by the first area difference value, and calculating a zero intersection point of an area difference value on the straight line; and a frequency offset estimator for correcting the zero intersection point provided from the zero intersection point calculator to thereby estimate the frequency offset.

摘要翻译： 提供了一种用于校正卫星数字视频广播系统中的频率偏移的装置和方法。 该装置包括：频率响应变压器，用于接收卫星数字视频广播信号并获取分成正频率部分和负频率部分的多个频率响应; 旋转/差值计算单元，用于选择从频率响应变换器输入的多个频率响应中的一个频率响应，并且计算指示正频率部分和负频率部分之间的面积差的第一区域差值，而不是所选频率的旋转 响应，并且计算指示所述正频率分量和所述负频率分量之间的区域的差异的第二面积差值，其中所述正频率分量和所述负频率分量之间的剩余频率响应的旋转; 零交叉点计算器，用于将由第一区域差值和第二区域差值形成的直线的平均斜率除以第一区域差值，并且计算直线上的区域差值的零交叉点; 以及频率偏移估计器，用于校正从零交叉点计算器提供的零交叉点，从而估计频率偏移。

公开(公告)号：US07158752B1

公开(公告)日：2007-01-02

申请号：US10244952

申请日：2002-09-17

申请人： Riza Akturan

发明人： Riza Akturan

IPC分类号： H04H1/00 ,  H04H7/00 ,  H04Q7/20 ,  G01S3/02 ,  H04B7/185

CPC分类号： H04H40/90 ,  G01S5/0063 ,  G01S5/0252 ,  H04B7/18523 ,  H04H20/74 ,  H04H60/51 ,  H04H60/65

摘要： Methods and systems for providing geographic specific services to receivers in a satellite communications network utilizes specific position location and information tagging to provide manual or automatic delivery of such services to the receivers.

摘要翻译： 用于向卫星通信网络中的接收机提供地理特定服务的方法和系统利用特定位置位置和信息标签来向接收机提供手动或自动传送这种服务。

公开(公告)号：US20060215785A1

公开(公告)日：2006-09-28

申请号：US10568384

申请日：2004-08-27

申请人： Ernest Chen ,  Dennis Lai ,  Tung-Sheng Lin ,  William Lindsey ,  Shamik Maitra ,  Joseph Santoru ,  Guangcai Zhou

发明人： Ernest Chen ,  Dennis Lai ,  Tung-Sheng Lin ,  William Lindsey ,  Shamik Maitra ,  Joseph Santoru ,  Guangcai Zhou

IPC分类号： H04L27/12

CPC分类号： H04L25/03866 ,  H04B7/18523 ,  H04L27/36 ,  H04N21/23895 ,  H04N21/4382 ,  H04N21/43853 ,  H04N21/6143 ,  H04N21/6193

摘要： A simplified scrambling scheme that unifies all signals of a satellite broadcasting system, including frame header (404), frame body (402) and pilot symbols (408) with a common reference phase. This results in the simplification and increased flexibility of the receiver front-end design without affecting the overall system performance. In many current communications systems with frame headers and pilot symbols, the phases of frame headers and pilot syrnbols are not designed to be aligned with any constellation points of the modulated data from the frame body. This scrambling scheme takes into account possible impact due to irregular phase changes between frame headers/pilot symbols and modulated data.

摘要翻译： 一种简化的加扰方案，其将具有公共参考相位的卫星广播系统的所有信号（包括帧头部（404）），帧体（402）和导频符号（408）统一起来。 这导致了接收机前端设计的简化和增加的灵活性，而不会影响整个系统的性能。 在具有帧头和导频符号的许多当前通信系统中，帧头和导频符号的相位不被设计为与来自帧体的调制数据的任何星座点对准。 该加扰方案考虑到由帧头/导频符号和调制数据之间的不规则相位变化引起的可能的影响。

公开(公告)号：US07079503B2

公开(公告)日：2006-07-18

申请号：US10772864

申请日：2004-02-06

申请人： Zoran Kostic ,  Nelson Ray Sollenberger ,  James F. Whitehead

发明人： Zoran Kostic ,  Nelson Ray Sollenberger ,  James F. Whitehead

IPC分类号： H04J3/24 ,  H04J3/00 ,  H04J3/16 ,  H04J3/22

CPC分类号： H04W72/005 ,  H04B7/18523 ,  H04H20/67 ,  H04L5/023 ,  H04W52/0206 ,  H04W52/0216 ,  H04W72/0446 ,  H04W84/042 ,  Y02D70/164 ,  Y02D70/26 ,  Y02D70/446

摘要： An efficient method for providing both dedicated and simulcast services over a common wireless infrastructure is described. The services can be terminal as well as to a multiplicity of terminals simultaneously. The method uses time division multiplexing and orthogonal frequency division multiple access for simulcasting information and transmitting dedicated message information from a plurality of base stations forming a cellular pattern over the same wireless frequency channel. The method comprises the steps of constructing frames for transmission by the plurality of base stations comprising control information, simulcast information and dedicated message information within predetermined time slots of the frames and allocating the simulcast information and the dedicated message information to time slots of the same frame predetermined by the control information of the frame. The underlying modulation technology used is OFDM and thereby the channel delay-dispersion is minimized.

摘要翻译： 描述了通过公共无线基础设施提供专用和联播服务的有效方法。 这些服务可以是终端，也可以是多个终端。 该方法使用时间复用和正交频分多址接入用于同播信息，并且通过同一无线频率信道从形成蜂窝模式的多个基站发送专用消息信息。 该方法包括以下步骤：在帧的预定时隙内构成包括控制信息，联播信息和专用消息信息的多个基站的帧，并将同播信息和专用消息信息分配给同一帧的时隙 由帧的控制信息预先设定。 所使用的基础调制技术是OFDM，从而最小化信道延迟分散。