公开(公告)号：US06526039B1

公开(公告)日：2003-02-25

申请号：US09243095

申请日：1999-02-02

申请人： Erik Bengt Lennart Dahlman ,  Karim Jamal ,  Johan Anders Nyström ,  Mats Cedervall ,  Patrik Lundqvist

发明人： Erik Bengt Lennart Dahlman ,  Karim Jamal ,  Johan Anders Nyström ,  Mats Cedervall ,  Patrik Lundqvist

IPC分类号： H04B7216

CPC分类号： H04B1/7083 ,  H04W56/002 ,  H04W92/10

摘要： A method and system are disclosed for facilitating the timing (e.g., the known relative timing differences) of base stations (BSs) in asynchronous CDMA mobile communications systems. A plurality of mobile stations (MSs) measure the relative time differences between various pairs of BSs, and these measurements are stored by the BSs. A source BS sends to an MS, in a neighbor list message, estimates of the relative time difference between the source BS and each of the BSs on the neighboring cell list. Each BS on the list can maintain a relative time difference estimate table, which can be updated continuously from the reports received from MSs. Subsequently, the BSs can send entries from this table to the MS in the neighbor list message. Using this novel technique, the BSs have known relative timing differences. Consequently, when the MS initiates a cell-search for a candidate BS, the MS already has an estimate of the timing of that BS as compared to its source BS. As such, the resulting cell-search procedure has a lower level of complexity and thus can be accomplished much quicker than with prior procedures. In addition, the relative time difference estimates can be compared with corresponding time differences that are measured by a second mobile station. Based on this comparison, the propagation delays of signals between the second MS and various BSs can be calculated to determine the position of the second MS.

摘要翻译： 公开了用于促进异步CDMA移动通信系统中的基站（BS）的定时（例如，已知的相对定时差）的方法和系统。 多个移动站（MS）测量各对BS之间的相对时间差，并且这些测量由BS存储。 源BS在邻居列表消息中向MS发送源BS与相邻小区列表上的每个BS之间的相对时间差的估计。 列表中的每个BS可以保持相对时间差估计表，其可以从从MS接收到的报告中连续地更新。 随后，BS可以在邻居列表消息中从该表发送条目到MS。 使用这种新技术，BS已知相对时间差。 因此，当MS发起对候选BS的小区搜索时，MS已经具有与其源BS相比该BS的定时的估计。 因此，所得到的细胞搜索程序具有较低的复杂度，因此可以比先前的程序更快地完成。 此外，相对时间差估计可以与由第二移动台测量的对应时间差进行比较。 基于该比较，可以计算第二MS与各个BS之间的信号的传播延迟，以确定第二MS的位置。

公开(公告)号：US6134228A

公开(公告)日：2000-10-17

申请号：US989491

申请日：1997-12-12

申请人： Mats Cedervall ,  Karim Jamal

发明人： Mats Cedervall ,  Karim Jamal

IPC分类号： G01S5/02 ,  G01S19/09 ,  G01S19/46 ,  H04W64/00 ,  H04B7/216

CPC分类号： H04W64/00 ,  G01S5/02

摘要： A method and system for use in determining the position of a mobile terminal in a CDMA mobile communications system is disclosed, whereby a different than usual spreading code is used when TOA measurements are being performed, but information is allowed to be transmitted while those TOA measurements are being performed. In one embodiment, the length of the different spreading codes used is equal to one symbol length. In a second embodiment, a mobile terminal uses a long spreading code and short spreading code prior to making TOA measurements. When TOA measurements are to be made, the serving base station orders the mobile terminal to change the spreading code by terminating the use of the long code and continuing use of the short code. Alternatively, when the TOA measurements are to be made, the serving base station orders the mobile terminal to substitute a second, predetermined short code for the long code being used, and to continue use of the first short code. The TOA measurements are then performed in at least three base stations, and the position of the mobile terminal is derived from this TOA information. The serving base station then orders the mobile terminal to resume normal operations using the long code.

摘要翻译： 公开了一种用于确定CDMA移动通信系统中的移动终端的位置的方法和系统，由此在正在执行TOA测量时使用不同于通常的扩展码，但是允许信息被发送，而那些TOA测量 正在执行。 在一个实施例中，所使用的不同扩展码的长度等于一个符号长度。 在第二实施例中，在进行TOA测量之前，移动终端使用长扩展码和短扩展码。 当要进行TOA测量时，服务基站通过终止使用长码并继续使用短码来命令移动终端改变扩展码。 或者，当要进行TOA测量时，服务基站命令移动终端替换所使用的长码的第二预定短码，并继续使用第一短码。 然后在至少三个基站中执行TOA测量，并且从该TOA信息导出移动终端的位置。 服务基站然后使用长码命令移动终端恢复正常操作。

公开(公告)号：US20150049253A1

公开(公告)日：2015-02-19

申请号：US14382357

申请日：2012-03-02

申请人： Fredrik Persson ,  Michail Arman ,  Mats Cedervall

发明人： Fredrik Persson ,  Michail Arman ,  Mats Cedervall

IPC分类号： H04N5/44 ,  H04N21/482 ,  H04N21/475 ,  H04N21/422 ,  H04N21/45

CPC分类号： H04N5/4403 ,  H04L67/306 ,  H04N21/42204 ,  H04N21/42222 ,  H04N21/4532 ,  H04N21/4756 ,  H04N21/4826 ,  H04N2005/4412 ,  H04N2005/4444

摘要： A method of zapping through a plurality of channels of an electronic device providing content includes: assigning a dislike designation via a wireless transmitter to content being presented on at least one of the channels and skipping the at least one channel during subsequent zapping while the disliked content is being presented on the at least one channel.

摘要翻译： 通过提供内容的电子设备的多个频道切换的方法包括：经由无线发射机将不喜欢的指定分配给在至少一个频道上呈现的内容，并且在随后的切换期间跳过至少一个频道，而不喜欢的内容 正在呈现在至少一个频道上。

公开(公告)号：US20150026746A1

公开(公告)日：2015-01-22

申请号：US14370504

申请日：2012-01-24

申请人： Niklas Fondberg ,  Mats Cedervall

发明人： Niklas Fondberg ,  Mats Cedervall

IPC分类号： H04N21/2668 ,  H04N21/239 ,  H04N21/643 ,  H04N21/858 ,  H04N21/2387 ,  H04N21/61

CPC分类号： H04N21/2668 ,  H04L65/4084 ,  H04L65/80 ,  H04N21/23106 ,  H04N21/2387 ,  H04N21/2393 ,  H04N21/2407 ,  H04N21/25833 ,  H04N21/4126 ,  H04N21/4331 ,  H04N21/4334 ,  H04N21/47202 ,  H04N21/6125 ,  H04N21/6175 ,  H04N21/64322 ,  H04N21/6543 ,  H04N21/6581 ,  H04N21/8586

摘要： A method and an IPTV server (302) for enabling playout of one or more media objects for a subscriber. A current connection state and capabilities are maintained in the IPTV server for a set of devices (304, 304a) associated to the subscriber. The IPTV server further sends (3:3) a list of the devices to a first device (300), comprising current connection states of the devices. When the IPTV server receives from the first device a first indication (3:4) indicating a wanted media object and a second indication (3:5) indicating a selected second device (304), the IPTV server sends (3:6) a download instruction with a media reference to the selected second device. The download instruction instructs the second device to download and prebuffer (3:7) data of at least an opening part of the wanted media object based on the media reference. Thereby, a user can start playout of the wanted media object on the second device immediately without having to wait for session setup and downloading of enough data for playout.

摘要翻译： 一种用于使用户能够播放一个或多个媒体对象的方法和IPTV服务器（302）。 在与用户相关联的一组设备（304,304a）中，IPTV服务器中保持当前连接状态和能力。 IPTV服务器还向第一设备（300）发送（3：3）设备的列表，其包括设备的当前连接状态。 当IPTV服务器从第一设备接收到指示所需媒体对象的第一指示（3：4）和指示所选择的第二设备（304）的第二指示（3：5）时，IPTV服务器发送（3：6）a 下载指令，并将媒体引用到所选择的第二个设备。 所述下载指令指示所述第二设备基于所述媒体参考来下载所需媒体对象的至少一个开放部分的预缓冲（3：7）数据。 因此，用户可以立即在第二设备上开始播放期望的媒体对象，而不必等待会话建立和下载足够的数据进行播放。

公开(公告)号：US20140201795A1

公开(公告)日：2014-07-17

申请号：US13993687

申请日：2010-12-15

申请人： Michael Huber ,  Hans Byström ,  Mats Cedervall ,  Johan Kwarnmark

发明人： Michael Huber ,  Hans Byström ,  Mats Cedervall ,  Johan Kwarnmark

IPC分类号： H04N21/6375 ,  H04N21/234 ,  H04N21/643 ,  H04N21/44 ,  H04N21/438 ,  H04N21/236 ,  H04N21/434

CPC分类号： H04N21/23418 ,  H04L65/4076 ,  H04L65/4084 ,  H04L65/607 ,  H04L65/608 ,  H04L65/80 ,  H04N21/23605 ,  H04N21/23617 ,  H04N21/4343 ,  H04N21/4349 ,  H04N21/4384 ,  H04N21/44004 ,  H04N21/6375 ,  H04N21/64322

摘要： A method for re-transmitting missing packets in an improved manner in association with transmitting an MPEG transport stream between a client and a server of a communication network is provided. New type of customized control packets are introduced which are periodically embedded into the transport stream at the server from which the MPEG transport stream is distributed, wherein each of the embedded control packets is provided with package identification data. A client receiving the MPEG transport stream, including the embedded customized control packets, will, on the basis of the package identification data obtained from a customized control packet be able to identify each of n packets which were inserted by the server into the transport stream subsequent to the respective customized control packet.

摘要翻译： 提供了一种与在通信网络的客户端和服务器之间传输MPEG传输流相关联地以改进的方式重新发送丢失分组的方法。 引入了新型的定制控制分组，其周期性地嵌入在分发MPEG传输流的服务器处的传输流中，其中每个嵌入式控制分组被提供有包标识数据。 接收包括嵌入式定制控制分组的MPEG传输流的客户端将根据从定制的控制分组获得的包标识数据能够将服务器插入的n个分组中的每一个标识到传输流中 到相应的定制控制分组。

公开(公告)号：US20100235875A1

公开(公告)日：2010-09-16

申请号：US12687360

申请日：2010-01-14

申请人： Mats Cedervall ,  Nilo Mitra

发明人： Mats Cedervall ,  Nilo Mitra

IPC分类号： H04N7/173

CPC分类号： G06F21/572 ,  G06F8/65 ,  H04N21/42684 ,  H04N21/435 ,  H04N21/443 ,  H04N21/4432 ,  H04N21/4586 ,  H04N21/6125 ,  H04N21/6175

摘要： Methods and apparatus for enabling upgrading of a television (TV) device that is connectable to an internet protocol TV (IPTV) system including an operator system and a TV manufacturer system are described. The upgrading is based on a token object and verifies a requested upgrading of the TV device. A token object is generated at the TV manufacturer system in response to receiving a request for upgrading from the TV device, and delivered to the TV device, thus enabling the TV device to complete the requested upgrading process due to possessing a valid token. A TV device, an operator system, and a TV manufacturer system adapted to execute the suggested methods are also provided.

摘要翻译： 描述了能够升级可连接到包括操作员系统和TV制造商系统的因特网协议电视（IPTV）系统的电视（TV）设备的方法和装置。 升级是基于令牌对象，并验证电视设备的请求升级。 响应于从TV设备接收到升级的请求并在TV设备上生成令牌对象，从而使得TV设备由于拥有有效的令牌而完成所请求的升级过程。 还提供了适于执行建议方法的TV设备，操作员系统和TV制造商系统。

公开(公告)号：US07092463B1

公开(公告)日：2006-08-15

申请号：US09549559

申请日：2000-04-14

申请人： Mats Cedervall ,  Bo Göransson ,  Joakim Sorelius

发明人： Mats Cedervall ,  Bo Göransson ,  Joakim Sorelius

IPC分类号： H03D1/04

CPC分类号： H04L25/03299 ,  H04B7/005

摘要： The invention relates to an apparatus, and an associated method, in a communication system that is tolerant to interference. The received signal is divided into a real and an imaginary part, and the noise and interference is modeled as a filtered process. The invention solves the interference problem by utilizing the inherent signal structure.

摘要翻译： 本发明涉及一种容忍干扰的通信系统中的装置和相关联的方法。 接收信号被分为实部和虚部，噪声和干扰被建模为滤波过程。 本发明通过利用固有信号结构解决了干扰问题。

公开(公告)号：US6011974A

公开(公告)日：2000-01-04

申请号：US935421

申请日：1997-09-23

申请人： Mats Cedervall ,  Patrik Lundqvist

发明人： Mats Cedervall ,  Patrik Lundqvist

IPC分类号： H04B7/26 ,  G01S5/00 ,  G01S5/14 ,  G01S13/87 ,  G01S19/25 ,  H04W64/00 ,  H04Q7/20

CPC分类号： H04W64/00 ,  G01S13/878 ,  G01S5/0036 ,  G01S5/14

摘要： A method and system are disclosed by which a round-trip calculation is used to determine the distance between a mobile radio station (MS) and a radio base station (BS) using the apparent uplink and downlink signal propagation air-times (e.g., T-up and T-down). As such, no absolute time reference is required. The MS and BS report to a service node in the mobile network the local departure and arrival times of the uplink and downlink signals, and calculate the apparent air-times, T-up and T-down. The distance, D, between the MS and BS can be calculated as D=c(T-up+T-down)/2, where "c" equals the speed of light. The distances, D1, D2 and D3, to at least three base stations whose locations are known, can be used in a triangulation algorithm to determine the MS's position.

摘要翻译： 公开了一种方法和系统，通过该方法和系统，使用往返计算来使用表观上行链路和下行链路信号传播空气时间来确定移动无线电台（MS）和无线电基站（BS）之间的距离（例如，T -up和T-down）。 因此，不需要绝对时间参考。 MS和BS向移动网络中的服务节点报告上行链路和下行链路信号的本地出发和到达时间，并计算表观空中时间，T-up和T-down。 MS和BS之间的距离D可以计算为D = c（T-up + T-down）/ 2，其中“c”等于光速。 距离D1，D2和D3到位置已知的至少三个基站可以用于三角测量算法中以确定MS的位置。

公开(公告)号：US09009765B2

公开(公告)日：2015-04-14

申请号：US13980979

申请日：2011-01-26

申请人： Thomas Lundqvist ,  Mats Cedervall

发明人： Thomas Lundqvist ,  Mats Cedervall

IPC分类号： H04N7/173 ,  H04N21/6332 ,  H04N21/438 ,  H04N21/442 ,  H04N21/6405 ,  H04N21/6408

CPC分类号： H04N21/6332 ,  H04N21/4384 ,  H04N21/44209 ,  H04N21/6405 ,  H04N21/6408

摘要： An object with embodiments of the present invention is to achieve a solution for fast channel change that improves bandwidth utilization, wherein the fast channel change is accomplished by initiating a unicast stream until a multicast stream can provide the desired media. The bandwidth utilization is achieved by delaying the multicast session and by terminating the unicast session at the latest when the multicast session starts. The delay of the multicast session is dependent on the network latency. Latency in this context refers to the time passed from when the client sends an IGMP JOIN message until it receives the first packet of the multicast stream.

摘要翻译： 具有本发明的实施例的目的是实现改进带宽利用率的快速信道改变的解决方案，其中通过发起单播流来实现快速信道改变，直到多播流可以提供期望的媒体。 带宽利用率是通过延迟组播会话并最终在组播会话开始时终止单播会话来实现的。 多播会话的延迟取决于网络延迟。 在此上下文中的延迟指的是从客户端发送IGMP JOIN消息直到接收到多播流的第一个数据包的时间。

公开(公告)号：US08564728B2

公开(公告)日：2013-10-22

申请号：US13227386

申请日：2011-09-07

申请人： Justus Petersson ,  Mats Cedervall ,  Robert Skog

发明人： Justus Petersson ,  Mats Cedervall ,  Robert Skog

IPC分类号： H04N5/44

CPC分类号： G06F3/04883 ,  G06F2203/04808 ,  H04N5/4403 ,  H04N21/422 ,  H04N21/4333 ,  H04N21/44218 ,  H04N21/44231 ,  H04N21/64 ,  H04N21/64322 ,  H04N2005/443

摘要： Methods and apparatus for controlling an Internet Protocol Television (IPTV) system by gestures on a remote control involve determining a number of fingers touching a screen of the remote control; identifying at least one characteristic of movement by the fingers; based on the number determined and at least one characteristic identified, finding a corresponding predefined gesture in a set of predefined gestures; and based on the gesture found, generating a corresponding control command to be sent to the IPTV system.

摘要翻译： 用于通过遥控器上的手势来控制互联网协议电视（IPTV）系统的方法和装置包括确定触摸遥控器的屏幕的手指的数量; 识别手指移动的至少一个特征; 基于所确定的数量和所标识的至少一个特征，在一组预定义手势中找到相应的预定义手势; 并且基于所发现的手势，生成要发送到IPTV系统的相应控制命令。