专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

31. 发明申请

WO1997002676A2 TRANSMITTER CONTROL SYSTEM FOR LOW DATA RATE FSK MODULATION 审中-公开
标题翻译：低速率数据FSK调制的发射机控制系统
公开(公告)号：WO1997002676A2
公开(公告)日：1997-01-23
申请号：PCT/IB1996000610
申请日：1996-06-26
申请人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB
发明人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB , SATYANARAYANA, Srinagesh , DASGUPTA, Aninda, V.
IPC分类号： H04L00/00
CPC分类号： H04L45/00 , H04L45/48
摘要： Packets of data are transmitted by an FSK modulated transmitter including a controlled oscillator and a phase locked loop for carrier frequency control, in which the loop compares the transmitted frequency with a reference source. A transmission starts with a burst of carrier signal free from data. Just prior to, or approximately at the start of, modulation with a data sequence the phase locked loop is opened. The control signal for the controlled oscillator is maintained approximately constant for the duration of the data sequence transmission, and the loop is closed again after completion of data transmission.
摘要翻译：数据分组由具有受控振荡器和用于控制载波频率的锁相环的FSK调制发送器发送，该环路将发送频率与参考源进行比较。传输始于没有数据的载波信号突发。紧接在使用数据序列进行调制之前，或者在该调制开始时，打开锁相环。受控振荡器的控制信号在数据序列的传输时间期间保持近似恒定，并且在完成传输之后再次闭合环路。

32. 发明申请

WO1996011538A2 SYSTEM FOR DIGITAL COMMUNICATION 审中-公开
标题翻译：数字通信系统
公开(公告)号：WO1996011538A2
公开(公告)日：1996-04-18
申请号：PCT/NL1995000334
申请日：1995-10-03
申请人： MULTIHOUSE AUTOMATISERING B.V. , HARDENDOOD, Theo
发明人： MULTIHOUSE AUTOMATISERING B.V.
IPC分类号： H04L00/00
CPC分类号： H04W28/06 , H04L69/08 , H04W4/18 , H04W80/04 , H04W88/16
摘要： The invention relates to a system for digital communication of data divided into packets between at least two communication apparatuses via a network, said network comprising at least two media, wherein communication in the network is controlled by a network protocol and communication between the apparatuses is controlled by an apparatus protocol. Unabbreviated and complete transfer through the network of data and apparatus protocol information supplemented with network protocol information results in unnecessarily bulky packets, since at least some of the functions of the apparatus protocol are likewise executed by the network protocol, wherein the cost of the transfer through the network is directly proportional to the number of packets for transfer and the size of these packets. The invention has for its object to obviate the above stated drawbacks and provides to this end a system which is distinguished in that between the network and at least one of the apparatuses is placed a gate device which is adapted to code or decode the apparatus protocol information contained in a packet together with the data for transfer and to add network protocol information to the packet or remove it therefrom, and the system is further distinguished in that the gate device is adapted to transmit to an apparatus a confirmation to acknowledge receipt of a packet transmitted by this apparatus and to transfer the packet to the network for further transmission to the destination apparatus.
摘要翻译：本发明涉及一种用于经由网络在至少两个通信设备之间被分成分组的数据的数字通信系统，所述网络包括至少两个媒体，其中网络中的通信由网络协议控制，并且控制设备之间的通信通过设备协议。由网络协议信息补充的数据和设备协议信息的网络进行的不经简单的和完整的传输导致不必要的庞大的分组，因为设备协议的至少一些功能同样由网络协议执行，其中传输的成本网络与传输的数据包数量和这些数据包的大小成正比。本发明的目的是为了避免上述缺点，并且为此提供了一种系统，其特征在于，在网络和至少一个装置之间设置有适于对装置协议信息进行编码或解码的门装置包含在分组中以及用于传送的数据，并且将网络协议信息添加到分组或从其中移除，并且进一步区分该系统，因为该门设备适于向设备发送用于确认分组的接收的确认由该装置发送并将分组传送到网络以进一步发送到目的地装置。

33. 发明申请

WO1995016314A2 A DIGITAL COMMUNICATION SYSTEM AND A RECEIVER FOR USE IN SUCH A SYSTEM 审中-公开
标题翻译：数字通信系统和用于此类系统的接收器
公开(公告)号：WO1995016314A2
公开(公告)日：1995-06-15
申请号：PCT/IB1994000378
申请日：1994-12-01
申请人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB
发明人： PHILIPS ELECTRONICS N.V. , PHILIPS NORDEN AB , DE BOT, Paulus, George, Maria
IPC分类号： H04L00/00
CPC分类号： H04L27/3488
摘要： Known in a digital communication system (1) are phase recovery methods for QPSK modulated signals. It is proposed to extend such methods to multi-resolution QAM signals, which can be represented by rotationally invariant signal constellations. To this end, with each received symbol (ri), a phase reference (oi) for a high priority-bit (HP-bits) constellation is determined, and with respect to this phase reference (oi), a sub-constellation (CLx) for low-priority bits (LP-bits) is construced, the sub-constellation (CLx) being rotationally invariant. The sub-configuration (CLx) is translated to an origin (O) of the signal constellation, and then the low priority-bits (LP-bits) are determined by determining a minimum squared Euclidean distance (Ed) of the rotated and translated received symbol (bi') with respect to the rotated and translated sub-constellation. For a 2R(2,2)-QAM signal constellation a simple detection method is thus provided. The method can be made adaptive, and can also be made recursive for more complicated signal constellations such as a 64-QAM signal constellation.
摘要翻译：在数字通信系统（1）中已知的是用于QPSK调制信号的相位恢复方法。提出将这种方法扩展到可以用旋转不变信号星座表示的多分辨率QAM信号。为此，对于每个接收符号（ri），确定用于高优先级位（HP位）星座的相位参考（oi），并且相对于该相位参考（oi），子星座（CLx ）针对低优先级比特（LP比特）进行构造，子星座（CLx）是旋转不变的。子配置（CLx）被转换为信号星座的原点（O），然后通过确定旋转和转换的接收的最小平方欧几里得距离（Ed）来确定低优先级位（LP比特）符号（bi'）相对于旋转和转换的子星座。对于2R（2,2）-QAM信号星座，因此提供了简单的检测方法。该方法可以进行自适应，并且也可以对于诸如64-QAM信号星座的更复杂的信号星座进行递归。

34. 发明申请

WO1998028875A2 SYSTEM AND METHOD FOR MESSAGE-BASED REAL-TIME RECONFIGURATION OF A NETWORK 审中-公开
标题翻译：一种用于基于消息的网络实时重新配置的系统和方法
公开(公告)号：WO1998028875A2
公开(公告)日：1998-07-02
申请号：PCT/US1997023436
申请日：1997-12-19
申请人： MCI COMMUNICATIONS CORPORATION
发明人： MCI COMMUNICATIONS CORPORATION , WILSON, Neal, Alan , WAGNER, Clinton, Allen
IPC分类号： H04L00/00
CPC分类号： H04Q3/0079 , H04L41/082 , H04L41/0889 , H04Q3/002
摘要： A system and method for reconfiguring a telecommunications network comprising a plurality of network elements is disclosed. The reconfiguration process begins by identifying a new configuration for the telecommunications network. Next, the process stores the new configuration with the old configuration for the telecommunications network. The system then identifies new connection information associated with the new configuration. The system then downloads the new connection information to the plurality of network elements. After the connection information has been downloaded, the connection information is stored with the old connection information at the plurality of network elements. Next, a message is broadcast to the plurality of network elements to activate the new configuration and deactivate the old configuration. The activation of the new connection information stored by the plurality of network elements occurs substantially simultaneously.
摘要翻译：公开了一种用于重新配置包括多个网络元件的电信网络的系统和方法。重新配置过程从识别电信网络的新配置开始。接下来，该过程将新配置存储为电信网络的旧配置。然后，系统识别与新配置相关联的新连接信息。然后，系统将新的连接信息下载到多个网络元件。在下载连接信息之后，将连接信息与多个网络元件处的旧连接信息一起存储。接下来，向多个网络单元广播消息以激活新配置并停用旧配置。由多个网络元件存储的新的连接信息的激活基本上同时发生。

35. 发明申请

WO1998026533A2 METHOD AND APPARATUS FOR INTERMEDIATE SYSTEM BASED FILTERING ON A LOCAL AREA NETWORK UNDER END SYSTEM CONTROL 审中-公开
标题翻译：在终端系统控制下的本地区域网络进行中间系统过滤的方法和装置
公开(公告)号：WO1998026533A2
公开(公告)日：1998-06-18
申请号：PCT/US1997021536
申请日：1997-11-26
申请人： 3COM CORPORATION
发明人： 3COM CORPORATION , SHERER, William, Paul , HART, John , WANG, Peter, Si-Sheng , JAIN, Vipin, Kumar
IPC分类号： H04L00/00
CPC分类号： H04L12/1886 , H04L12/185 , H04L12/1881 , H04L12/4625
摘要： An intermediate system, end system and method capable of reducing unwanted packet traffic in a LAN is disclosed. The ES drivers send to the IS indications of whether or not they wish to receive a particular packet stream and the IS includes this information in a filter table. The IS then does not transmit packets to said ES when said ES has indicated it does not wish to receive said packets.
摘要翻译：公开了一种能够减少局域网内不必要的分组流量的中间系统，终端系统和方法。 ES驱动程序向IS发送指示是否希望接收特定数据包流，并且IS将此信息包含在过滤器表中。然后，当所述ES指示不希望接收所述分组时，所述IS不向所述ES发送分组。

36. 发明申请

WO1998025373A2 WEB SITE COPY PROTECTION SYSTEM AND METHOD 审中-公开
标题翻译：网站复制保护系统及方法
公开(公告)号：WO1998025373A2
公开(公告)日：1998-06-11
申请号：PCT/US1997021356
申请日：1997-11-21
申请人： INTELLECTUAL PROTOCOLS, L.L.C.
发明人： INTELLECTUAL PROTOCOLS, L.L.C. , GLOGAU, Jordan, J.
IPC分类号： H04L00/00
CPC分类号： G06F21/40 , G06F21/10 , G06F21/6227 , G06F2221/2141
摘要： A copy protection system and method protect web sites and other works in computer readable form from unauthorized access and/or reproduction. In particular, the copy protection system examines a web site or other work in computer readable form to ascertain the web site structure and individual web site components. A web site owner selects identified web site components for protection and provides a protection level for those components. An end-user attempting to access protected web site components is directed to obtain a license wherein the copy protection system displays licensing terms to the end-user and administers a test relating to the licensing terms. Upon passing the test, the copy protection system grants the end-user a license and enables the end-user to download software that facilitates access and/or reproduction of the protected web site components. If the end-user does not obtain a license, the copy protection system permits the end-user to access and/or reproduce only unprotected web site components.
摘要翻译：复制保护系统和方法保护网站和其他以计算机可读形式的作品未经授权的访问和/或再现。特别地，复制保护系统以计算机可读形式检查网站或其他工作以确定网站结构和单个网站组件。网站所有者选择已识别的网站组件进行保护，并为这些组件提供保护级别。尝试访问受保护的网站组件的最终用户被指示获取许可证，其中复制保护系统向最终用户显示许可条款并管理与许可条款相关的测试。通过测试后，复制保护系统向最终用户授予许可证，并使终端用户下载有助于受保护的网站组件的访问和/或再现的软件。如果最终用户没有获得许可证，则复制保护系统允许最终用户仅访问和/或再现不受保护的网站组件。

37. 发明申请

WO1998019417A2 CORPORATE INFORMATION COMMUNICATION AND DELIVERY SYSTEM AND METHOD INCLUDING ENTITLABLE HYPERTEXT LINKS 审中-公开
标题翻译：公司信息通信和交付系统以及包含可靠的超文本链接的方法
公开(公告)号：WO1998019417A2
公开(公告)日：1998-05-07
申请号：PCT/US1997019568
申请日：1997-10-28
申请人： MULTEX SYSTEMS, INC.
发明人： MULTEX SYSTEMS, INC. , MAHONEY, John, J. , MACCARTHY, Mary, Ellen , TOUSIGNANT, James, M. , KARAEV, Isaak , BAIRD, George , BLAZEK, Paul
IPC分类号： H04L00/00
CPC分类号： G06Q10/10 , G06F17/30448 , G06F17/30483 , G06F17/3089 , G06F21/31 , G06F21/6218 , G06F2221/2141 , G06F2221/2149 , Y10S707/99939 , Y10S707/99945
摘要： An integrated computer-implemented corporate information delivery system. A database stores research reports produced by and received electronically from brokerage firms. Authorization information specifies who is authorized to access each research report. The database also stores corporate information about a number of corporations. Each item of corporate information is produced by and received electronically from one of the corporations about that corporation. Authorization information specifies who is authorized to access each item of corporate information. A research delivery module allows a user to submit a query and receive query results listing research reports and corporate information satisfying the query and that the user is authorized to access. A corporate register module outputs corporate information, the corporate information output according to a common format. The corporate information may be distributed via the Internet.
摘要翻译：一个集成的计算机实现的企业信息传递系统。数据库存储经纪公司生产和接收的研究报告。授权信息指定谁被授权访问每个研究报告。数据库还存储有关多家公司的企业信息。公司信息的每个项目都是由一家关于该公司的公司以电子形式提供的。授权信息指定谁被授权访问每个公司信息项目。研究交付模块允许用户提交查询并接收列出研究报告和满足查询并且用户被授权访问的公司信息的查询结果。公司注册模块输出公司信息，根据通用格式输出公司信息。公司信息可以通过互联网分发。

38. 发明申请

WO1998009398A2 WIDEBAND CODE-DIVISION-MULTIPLE ACCESS SYSTEM AND METHOD 审中-公开
标题翻译：宽带码分多址接入系统及方法
公开(公告)号：WO1998009398A2
公开(公告)日：1998-03-05
申请号：PCT/IB1997001236
申请日：1997-08-26
申请人： APELEWICZ, Tuvia
IPC分类号： H04L00/00
CPC分类号： H04B1/707 , H04L27/18
摘要： A wideband code division multiple access, spread-spectrum communications system, having an equalization channel. The transmitter includes an in-phase-data-product device (32), a quadrature-phase-data-product-device (33), a chip-sequence source (29), an in-phase combiner (38), a quadrature-phase combiner (39), a QPSK modulator (45), a power amplifier (48) and an antenna (50). The transmitter transmits data over a spread-spectrum channel, along with a spread-spectrum channel having little or no information, i.e., an equalization channel to the receiver. The receiver includes an antenna (357), a QPSK demodulator (390), an in-phase subsystem (61), a quadrature-phase subsystem (62), and a processor (385). The receiver uses in-phase early, punctual and late signals, and quadrature-phase early, punctual and late signals, for equalizing of the data spread-spectrum channel, and for generating an output in-phase data signal and an output quadrature-phase data signal.
摘要翻译：具有均衡信道的宽带码分多址，扩频通信系统。发射机包括同相数据产品设备（32），正交相位数据产品设备（33），码片序列源（29），同相组合器（38），正交相位相位合成器（39），QPSK调制器（45），功率放大器（48）和天线（50）。发射机通过扩频信道以及具有很少或没有信息的扩频信道（即，均衡信道）向接收机发送数据。接收机包括天线（357），QPSK解调器（390），同相子系统（61），正交相位子系统（62）和处理器（385）。接收机使用同相早期，准时和晚期信号以及正交相位早期，准时和晚期信号，以均衡数据扩频信道，并用于产生输出同相数据信号和输出正交相位数据信号。

39. 发明申请

WO1997045978A2 METHOD AND APPARATUS FOR ENABLING FLOW CONTROL OVER MULTIPLE NETWORKS HAVING DISPARATE FLOW CONTROL CAPABILITY 审中-公开
标题翻译：通过具有不同流量控制能力的多个网络实现流量控制的方法和装置
公开(公告)号：WO1997045978A2
公开(公告)日：1997-12-04
申请号：PCT/US1997008116
申请日：1997-05-09
申请人： FUJITSU NETWORK COMMUNICATIONS, INC. , FUJITSU LIMITED
发明人： FUJITSU NETWORK COMMUNICATIONS, INC. , FUJITSU LIMITED , HUNT, Douglas, H. , NAIR, Raj, Krishnan , MALIS, Andrew, G.
IPC分类号： H04L00/00
CPC分类号： H04L12/5601 , H04L12/4608 , H04L12/5602 , H04L29/06 , H04L47/10 , H04L47/16 , H04L47/193 , H04L69/32 , H04L2012/5619 , H04L2012/5632 , H04L2012/5635 , H04L2012/5636 , H04L2012/5667
摘要： Method and apparatus for extending lower-layer flow control end-to-end, transparent to network host systems, between network hosts attached to legacy networks without requiring any changes to the host networks or hosts themselves. In a first embodiment, a source host and a destination host, each residing on a respective LAN, communicate via an intermediate network supporting the lower-layer flow control. A higher-layer, end-to-end flow control protocol exists between the hosts. The lower-layer flow control protocol accounts for loss of bandwidth between each hop within the intermediate network. To extend the lower-layer flow control protocol to the hosts, an intelligent edge device of the intermediate network adjusts observed higher-layer flow control parameters based upon the state of the lower-layer flow control. No modifications to the legacy network or hosts is required, and the extension of low control is transparent to the legacy networks.
摘要翻译：用于在连接到传统网络的网络主机之间，在不需要对主机网络或主机本身进行任何改变的情况下，端到端扩展下层流量控制的方法和装置，对网络主机系统是透明的。在第一实施例中，每个驻留在相应LAN上的源主机和目的主机经由支持下层流控制的中间网络进行通信。主机之间存在更高层次的端到端流控制协议。下层流量控制协议考虑了中间网络中每个跳跃之间的带宽损失。为了将下层流量控制协议扩展到主机，中间网络的智能边缘设备基于下层流量控制的状态来调整观察到的较高层流控制参数。不需要对传统网络或主机进行修改，低级控制的扩展对于传统网络是透明的。

40. 发明申请

WO1997024826A2 INTERACTIVE SERVICES 审中-公开
标题翻译：互动服务
公开(公告)号：WO1997024826A2
公开(公告)日：1997-07-10
申请号：PCT/GB1996003099
申请日：1996-12-13
申请人： NORTHERN TELECOM LIMITED , DOWNING, Anthony, Harold , JONES, David, Richard , LAYCOCK, John
发明人： NORTHERN TELECOM LIMITED
IPC分类号： H04L00/00
CPC分类号： H04L29/06 , G06Q20/32 , H04L67/42 , H04L69/329 , H04M1/57 , H04M3/493 , H04M3/4938 , H04M7/12 , H04M11/066 , H04M11/085 , H04M2201/50 , H04N21/4622 , H04N21/488 , H04N21/6118 , H04N21/6137 , H04N21/6187 , H04Q1/45
摘要： An arrangement for providing interactive services between a service provider (100) and a subscriber. A subscriber telephone terminal (120) recevies display data over a telephone network (101, 102, 103) from the service provider (100). A graphics device (130) couples to terminal (120) for processing the display data and generating a video signal for display on a subscriber's display device (150). Terminal (120) also has a telephone keypad and a response generator for enabling a subscriber to generate responses for conveying back over the telephone network to service provider (100). Display data may be transported as modem tones, and subscriber responses as DTMF tones.
摘要翻译：一种用于在服务提供商（100）和用户之间提供交互式服务的装置。用户电话终端（120）通过电话网络（101,102,103）从服务提供商（100）接收显示数据。图形装置（130）耦合到端子（120），用于处理显示数据并产生用于在用户显示装置（150）上显示的视频信号。终端（120）还具有电话键盘和响应发生器，用于使用户能够产生用于通过电话网络传送回服务提供商（100）的响应。显示数据可以作为调制解调器音调传输，用户响应作为DTMF音调传送。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式