专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US08626172B2 Method and apparatus for simultaneous communication utilizing multiple wireless communication systems 有权
标题翻译：使用多个无线通信系统的同时通信的方法和装置
公开(公告)号：US08626172B2
公开(公告)日：2014-01-07
申请号：US11502091
申请日：2006-08-09
申请人： Subrahmanyam Dravida , Jay Rodney Walton , Shravan K. Surineni
发明人： Subrahmanyam Dravida , Jay Rodney Walton , Shravan K. Surineni
IPC分类号： H04W36/00
CPC分类号： H04W36/0066 , H04W16/32 , H04W36/14 , H04W76/15 , H04W84/12 , H04W88/06 , H04W92/02
摘要： A wireless communication method, apparatus, and system for simultaneous communication of a wide area network with a wireless local area network. The system having the wide area network configured to transmit control signals, the wireless local area network configured to transmit data signals, and a mobile station configured to receive control signals from the wide area network and data signals from the wireless local area network.
摘要翻译：一种用于同时通信广域网与无线局域网的无线通信方法，装置和系统。具有被配置为发送控制信号的广域网的系统，被配置为发送数据信号的无线局域网，以及被配置为从广域网接收控制信号的移动站和来自无线局域网的数据信号。

42. 发明授权

US07139247B2 Broadband system with topology discovery 有权
公开(公告)号：US07139247B2
公开(公告)日：2006-11-21
申请号：US09952321
申请日：2001-09-13
申请人： Gautam Desai , Prasad Dorbala , Subrahmanyam Dravida , Dev V. Gupta , Anoop Jayadevan , Kiran Rege , Manas Tandon , Sitaram Dikshitulu
发明人： Gautam Desai , Prasad Dorbala , Subrahmanyam Dravida , Dev V. Gupta , Anoop Jayadevan , Kiran Rege , Manas Tandon , Sitaram Dikshitulu
IPC分类号： H04L12/28
CPC分类号： H04L61/2015 , H04L12/2801 , H04L12/2856 , H04L12/2859 , H04L12/2872 , H04L12/2876 , H04L12/4641 , H04L29/12216 , H04L41/0853 , H04L41/12 , H04L41/5003 , H04L45/02 , H04L45/026 , H04L47/10 , H04L47/15 , H04L47/20 , H04L47/24 , H04L47/2416 , H04L47/2425 , H04L47/2441 , H04L47/2491 , H04L47/32 , H04L47/70 , H04L47/724 , H04L47/788 , H04L47/801 , H04L47/805 , H04L47/822 , H04L47/829 , H04L2012/5605 , H04L2012/5606 , H04L2012/561 , H04L2012/5651 , H04L2012/5679 , H04N7/10 , H04N7/17309 , H04N21/6118 , H04N21/6168 , H04Q3/0045
摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements to take advantage of existing network configurations. The standard network elements can be selectively replaced by the intelligent network elements in an incremental approach. A method of discovering the network topology includes sending a message from one of the network elements on a transmission path to a topology server, the message including information identifying the one network element. At each intermediate network element in the transmission path, information identifying each intermediate network element is appended to the message. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.

43. 发明申请

US20050251846A1 Network architecture for intelligent network elements 有权
标题翻译：智能网元的网络架构
公开(公告)号：US20050251846A1
公开(公告)日：2005-11-10
申请号：US11180889
申请日：2005-07-12
申请人： Subrahmanyam Dravida , Dev Gupta , Frederick Peralta , Kiran Rege , Manas Tandon
发明人： Subrahmanyam Dravida , Dev Gupta , Frederick Peralta , Kiran Rege , Manas Tandon
IPC分类号： H04L12/24 , H04L12/28 , H04L12/46 , H04L12/56 , H04L29/12 , H04N7/10 , H04N7/173 , H04Q3/00 , H04N7/18
CPC分类号： H04L61/2015 , H04L12/2801 , H04L12/2856 , H04L12/2859 , H04L12/2861 , H04L12/4641 , H04L12/4645 , H04L29/12216 , H04L41/0806 , H04L41/0886 , H04L41/12 , H04L41/5003 , H04L47/10 , H04L47/20 , H04L47/2416 , H04L47/2425 , H04L47/2433 , H04L47/2441 , H04L47/2491 , H04L47/32 , H04L2012/5605 , H04L2012/5606 , H04L2012/561 , H04L2012/5651 , H04L2012/5679 , H04N7/10 , H04N7/17309 , H04Q3/0045
摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bidirectional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements can be co-located with or replace the standard network elements to take advantage of existing network configurations. The standard network elements can be selectively replaced by the intelligent network elements in an incremental approach. A tree-and-branch network architecture is therefore established in which each intelligent network element is assigned a routing ID employed in the point-to-point transmissions while leaving legacy analog signals unimpeded. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.
摘要翻译：混合光纤/同轴电缆网络采用用于有线电视的现有电缆设备，并以高于用于有线电视的频率带宽传输数据信号。由于该电缆厂部署在树型和分支拓扑结构中，数据传输可能会受到噪声，可变传输损耗和频率分散的影响，特别是在上行方向。此外，由于树和分支拓扑，网络远端的家庭比靠近头端/ ONU的家庭遭受更大的损失。该系统使用位于馈线/分配网络中的智能网络元件之间的点对点数据链路来提供可靠，安全的双向宽带接入。数字信号在智能网络元件处被终止，被切换和再生以用于在将家庭连接到头端或路由器所需的附加上游或下游数据链路上传输。智能网络元件可以与标准网络元件共同定位或替换，以利用现有的网络配置。标准网元可以以增量方式由智能网元选择性地替代。因此，建立了一种树分支网络架构，其中每个智能网络元件被分配在点对点传输中采用的路由ID，同时保持传统模拟信号不受阻碍。以这种方式，数据链路通过相对较短的同轴电缆运行进行，这可以提供比归属和前端或光网络单元之间的典型端到端馈线/分配连接更大的带宽。

44. 发明申请

US20050246754A1 System and method for mapping end user identififiers to access device identifiers 审中-公开
标题翻译：用于映射最终用户标识符以访问设备标识符的系统和方法
公开(公告)号：US20050246754A1
公开(公告)日：2005-11-03
申请号：US11179849
申请日：2005-07-11
申请人： Gautam Desai , Subrahmanyam Dravida , Satya Gupta , Kiran Rege , Manas Tandon , Ravi Kumar , DeQuan Wu
发明人： Gautam Desai , Subrahmanyam Dravida , Satya Gupta , Kiran Rege , Manas Tandon , Ravi Kumar , DeQuan Wu
IPC分类号： H04L12/24 , H04L12/28 , H04L12/46 , H04L12/56 , H04L29/12 , H04N7/10 , H04N7/173 , H04N21/61 , H04N21/6402 , H04Q3/00
CPC分类号： H04L61/2015 , H04L12/2801 , H04L12/2856 , H04L12/2859 , H04L12/4641 , H04L29/12216 , H04L41/0803 , H04L41/0886 , H04L41/12 , H04L41/5003 , H04L43/12 , H04L47/10 , H04L47/15 , H04L47/20 , H04L47/215 , H04L47/24 , H04L47/2416 , H04L47/2425 , H04L47/2433 , H04L47/2441 , H04L47/2491 , H04L47/32 , H04L47/50 , H04L47/521 , H04L47/6225 , H04L47/623 , H04L47/70 , H04L47/724 , H04L47/788 , H04L47/801 , H04L47/805 , H04L47/822 , H04L47/829 , H04L2012/5605 , H04L2012/5606 , H04L2012/561 , H04L2012/5651 , H04L2012/5679 , H04N7/10 , H04N7/17309 , H04N21/6118 , H04N21/6168 , H04N21/6402 , H04Q3/0045
摘要： Hybrid fiber/coax networks employ the existing cable plant used for cable TV and transmit data signals in a frequency bandwidth above that which is used for cable TV. As this cable plant was deployed in a tree and branch topology, data transmissions may be susceptible to noise, variable transmission loss and frequency dispersion, particularly in the upstream direction. Further, due to the tree and branch topology, homes at the far end of the network experience much greater loss than do the homes that are near to the headend/ONU. The present system, which uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bi-directional broadband access. Digital signals, or messages, are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. Messages indicative of an end user routing ID (RID) are identified and the information extracted for user with successive messages. In this manner, the data links are made over relatively short runs of coax cable, which can provide greater bandwidth than the typical end-to-end feeder/distribution connection between a home and the headend or optical network unit.
摘要翻译：混合光纤/同轴电缆网络采用用于有线电视的现有电缆设备，并以高于用于有线电视的频率带宽传输数据信号。由于该电缆厂部署在树型和分支拓扑结构中，数据传输可能会受到噪声，可变传输损耗和频率分散的影响，特别是在上行方向。此外，由于树和分支拓扑，网络远端的家庭比靠近头端/ ONU的家庭遭受更大的损失。该系统使用位于馈线/分配网络中的智能网络元件之间的点对点数据链路来提供可靠，安全的双向宽带接入。数字信号或消息在智能网络元件处被终止，被切换和重新生成，以便在将家庭连接到头端或路由器所需的附加上游或下游数据链路上传输。识别指示最终用户路由ID（RID）的消息，并且为具有连续消息的用户提取信息。以这种方式，数据链路通过相对较短的同轴电缆运行进行，这可以提供比归属和前端或光网络单元之间的典型端到端馈线/分配连接更大的带宽。

45. 发明授权

US5291481A Congestion control for high speed packet networks 失效
标题翻译：高速分组网络的拥塞控制
公开(公告)号：US5291481A
公开(公告)日：1994-03-01
申请号：US771578
申请日：1991-10-04
申请人： Bharat T. Doshi , Subrahmanyam Dravida , David S. Einstein , P. Harshavardhana
发明人： Bharat T. Doshi , Subrahmanyam Dravida , David S. Einstein , P. Harshavardhana
IPC分类号： H04M3/00 , H04L12/56 , H04Q11/04 , H04J3/14
CPC分类号： H04L12/5602 , H04L49/1553 , H04Q11/0478 , H04L2012/5619 , H04L2012/563 , H04L2012/5632 , H04L2012/5634 , H04L2012/5651 , H04L2012/5652
摘要： Congestion in a high speed connection oriented packet network carrying bursty data and real time service is avoided by a novel in-call negotiation scheme for reserving bandwidth for real time calls and reserving buffer capacity for bursty calls.For a real time call, a centralized call controller in each switch in the network determines which of its outgoing trunks has available to it the peak bandwidth needed to accommodate the call. Once one of these trunks is found, the call routing is set up so that the call is directed through that trunk and the peak bandwidth requirement of the call is allocated on that output trunk for the duration of the call.The network contains one or more switches, each of which has a centralized call controller and a plurality of trunk controllers. The call controller routes calls from a plurality of input trunks to a plurality of output trunks, identifies kinds of calls, and allocates bandwidth on the output trunks. The trunk controllers perform in-call buffer reservation independent of the routing, identification, and bandwidth allocation performed by the call controller. This relieves the call controller of the extra burden of performing buffer reservation and it permits buffer reservation to be accomplished in a shorter period of time.
摘要翻译：通过一种用于为实时呼叫预留带宽和为突发呼叫预留缓冲器容量的新颖的呼叫协商方案，避免了承载突发数据和实时业务的高速连接定向分组网络中的拥塞。对于实时呼叫，网络中每个交换机中的集中式呼叫控制器确定其出站中继线可用于其适应呼叫所需的峰值带宽。一旦找到这些中继线之一，则建立呼叫路由，使得呼叫被引导通过该中继线，并且呼叫的峰值带宽需求在该呼叫的持续时间内被分配在该输出中继线上。网络包含一个或多个交换机，每个交换机具有集中呼叫控制器和多个中继控制器。呼叫控制器将来自多个输入中继线的呼叫路由到多个输出中继线，识别呼叫类型，并在输出中继线上分配带宽。中继控制器执行呼叫缓冲区预留，独立于由呼叫控制器执行的路由，标识和带宽分配。这减轻了呼叫控制器执行缓冲区预留的额外负担，并允许呼叫控制器在更短的时间内完成缓冲区预留。

46. 发明授权

US08576846B2 Peer-to-peer communication in ad hoc wireless network 有权
公开(公告)号：US08576846B2
公开(公告)日：2013-11-05
申请号：US11538222
申请日：2006-10-03
申请人： Ravi Kumar , J. Rodney Walton , Qiang Fu , Subrahmanyam Dravida
发明人： Ravi Kumar , J. Rodney Walton , Qiang Fu , Subrahmanyam Dravida
IPC分类号： H04L12/56
CPC分类号： H04W76/11 , H04L63/0428 , H04W8/005 , H04W12/04 , H04W12/06 , H04W28/0268 , H04W48/16 , H04W84/18
摘要： For a peer-to-peer call in an ad hoc wireless network, a wireless device performs discovery of a target wireless device, performs authentication of the target wireless device and generates a session key (e.g., using a pre-shared key or a certificate provisioned on the wireless device), forms an ad hoc wireless network with the target wireless device, and communicates peer-to-peer with the target wireless device via the ad hoc wireless network. The wireless device may perform discovery with a list of identifiers for wireless devices designated to communicate with this wireless device. The wireless device may derive a service set identifier (SSID) used to identify the ad hoc wireless network based on its user-specific identifier (e.g., its phone number) and/or a user-specific identifier for the target wireless device. The wireless device may also performs IP address discovery using the user-specific identifier for the target wireless device.

47. 发明授权

US08139593B2 Memory management for high speed media access control 有权
标题翻译：高速媒体访问控制的内存管理
公开(公告)号：US08139593B2
公开(公告)日：2012-03-20
申请号：US11694408
申请日：2007-03-30
申请人： Subrahmanyam Dravida , Sriram Narayan
发明人： Subrahmanyam Dravida , Sriram Narayan
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L49/901 , H04L47/14 , H04L47/621 , H04L49/90 , H04L49/9021 , H04L49/9073 , H04W36/02 , H04W36/28 , H04W76/20 , H04W88/02 , H04W88/08
摘要： Aspects disclosed herein address the need in the art for memory management for high speed media access control. A packet buffer may store packets with a first data structure, comprising the packet length, sequence number, and a pointer to a second data structure. Packet data may be stored in a linked list of one or more second data structures. Transmit and receive queues may be formed using linked lists or arrays of the first data structures. Memory locations for storing first and second data structures may be kept in lists indicating free locations for the respective data structure types. A flexible memory architecture is disclosed in which two configurations may be selected. In a first configuration, a first memory comprises per-flow parameters for multiple flows, and a second memory comprises a packet buffer. In a second configuration, the first memory comprises per-flow pointers to per-flow parameters in the second memory. The packet buffer resides in a third memory. Various other aspects are also presented.
摘要翻译：本文公开的方面解决了本领域对用于高速媒体访问控制的存储器管理的需要。分组缓冲器可以存储具有第一数据结构的分组，包括分组长度，序列号和指向第二数据结构的指针。分组数据可以存储在一个或多个第二数据结构的链接列表中。发送和接收队列可以使用第一数据结构的链表或数组来形成。用于存储第一和第二数据结构的存储器位置可以保存在指示相应数据结构类型的空闲位置的列表中。公开了一种灵活的存储器架构，其中可以选择两种配置。在第一配置中，第一存储器包括用于多个流的每流参数，并且第二存储器包括分组缓冲器。在第二配置中，第一存储器包括在第二存储器中的每流参数的每流指针。数据包缓冲区位于第三个存储器中。还提出了各种其他方面。

48. 发明授权

US07835379B2 Network architecture for intelligent network elements 有权
标题翻译：智能网元的网络架构
公开(公告)号：US07835379B2
公开(公告)日：2010-11-16
申请号：US11180889
申请日：2005-07-12
申请人： Subrahmanyam Dravida , Dev V. Gupta , Frederick Peralta , Kiran M. Rege , Manas Tandon
发明人： Subrahmanyam Dravida , Dev V. Gupta , Frederick Peralta , Kiran M. Rege , Manas Tandon
IPC分类号： H04L12/28
CPC分类号： H04L61/2015 , H04L12/2801 , H04L12/2856 , H04L12/2859 , H04L12/2861 , H04L12/4641 , H04L12/4645 , H04L29/12216 , H04L41/0806 , H04L41/0886 , H04L41/12 , H04L41/5003 , H04L47/10 , H04L47/20 , H04L47/2416 , H04L47/2425 , H04L47/2433 , H04L47/2441 , H04L47/2491 , H04L47/32 , H04L2012/5605 , H04L2012/5606 , H04L2012/561 , H04L2012/5651 , H04L2012/5679 , H04N7/10 , H04N7/17309 , H04Q3/0045
摘要： The present system uses point-to-point data links between intelligent network elements located in the feeder/distribution network to provide reliable, secure, bidirectional broadband access. Digital signals are terminated at the intelligent network elements, switched and regenerated for transmission across additional upstream or downstream data links as needed to connect a home to a headend or router. The intelligent network elements are co-located with or replace the standard network elements to take advantage of existing network configurations. The standard network elements are selectively replaced by the intelligent network elements in an incremental approach. A tree-and-branch network architecture is established in which each intelligent network element is assigned a routing ID employed in the point-to-point transmissions while leaving legacy analog signals unimpeded. The data links are made over relatively short runs of coax cable, which provides greater bandwidth than typical end-to-end feeder/distribution connections between a home and the headend or optical network unit.
摘要翻译：本系统使用位于馈线/分配网络中的智能网络元件之间的点对点数据链路，以提供可靠，安全的双向宽带接入。数字信号在智能网络元件处被终止，被切换和再生以用于在将家庭连接到头端或路由器所需的附加上游或下游数据链路上传输。智能网络元件与标准网络元件共同定位或替换，以利用现有的网络配置。标准网元以增量方式由智能网元选择性地替代。建立了一种树分支网络架构，其中每个智能网络元件被分配在点对点传输中使用的路由ID，同时保留传统模拟信号不受阻碍。数据链路通过较短的同轴电缆运行进行，这提供了比家庭和头端或光网络单元之间的典型端到端馈线/分配连接更大的带宽。

49. 发明申请

US20070230493A1 MEMORY MANAGEMENT FOR HIGH SPEED MEDIA ACCESS CONTROL 有权
标题翻译：高速媒体访问控制的内存管理
公开(公告)号：US20070230493A1
公开(公告)日：2007-10-04
申请号：US11694408
申请日：2007-03-30
申请人： Subrahmanyam Dravida , Sriram Narayan
发明人： Subrahmanyam Dravida , Sriram Narayan
IPC分类号： H04L12/56
CPC分类号： H04L49/901 , H04L47/14 , H04L47/621 , H04L49/90 , H04L49/9021 , H04L49/9073 , H04W36/02 , H04W36/28 , H04W76/20 , H04W88/02 , H04W88/08
摘要： Aspects disclosed herein address the need in the art for memory management for high speed media access control. A packet buffer may store packets with a first data structure, comprising the packet length, sequence number, and a pointer to a second data structure. Packet data may be stored in a linked list of one or more second data structures. Transmit and receive queues may be formed using linked lists or arrays of the first data structures. Memory locations for storing first and second data structures may be kept in lists indicating free locations for the respective data structure types. A flexible memory architecture is disclosed in which two configurations may be selected. In a first configuration, a first memory comprises per-flow parameters for multiple flows, and a second memory comprises a packet buffer. In a second configuration, the first memory comprises per-flow pointers to per-flow parameters in the second memory. The packet buffer resides in a third memory. Various other aspects are also presented.
摘要翻译：本文公开的方面解决了本领域对用于高速媒体访问控制的存储器管理的需要。分组缓冲器可以存储具有第一数据结构的分组，包括分组长度，序列号和指向第二数据结构的指针。分组数据可以存储在一个或多个第二数据结构的链接列表中。发送和接收队列可以使用第一数据结构的链表或数组来形成。用于存储第一和第二数据结构的存储器位置可以保存在指示相应数据结构类型的空闲位置的列表中。公开了一种灵活的存储器架构，其中可以选择两种配置。在第一配置中，第一存储器包括用于多个流的每流参数，并且第二存储器包括分组缓冲器。在第二配置中，第一存储器包括在第二存储器中的每流参数的每流指针。数据包缓冲区位于第三个存储器中。还提出了各种其他方面。

50. 发明申请

US20070037603A1 Method and apparatus for simultaneous communication utilizing multiple wireless communication systems 有权
标题翻译：使用多个无线通信系统的同时通信的方法和装置
公开(公告)号：US20070037603A1
公开(公告)日：2007-02-15
申请号：US11502091
申请日：2006-08-09
申请人： Subrahmanyam Dravida , Jay Walton , Shravan Surineni
发明人： Subrahmanyam Dravida , Jay Walton , Shravan Surineni
IPC分类号： H04M1/00
CPC分类号： H04W36/0066 , H04W16/32 , H04W36/14 , H04W76/15 , H04W84/12 , H04W88/06 , H04W92/02
摘要： A wireless communication method, apparatus, and system for simultaneous communication of a wide area network with a wireless local area network. The system having the wide area network configured to transmit control signals, the wireless local area network configured to transmit data signals, and a mobile station configured to receive control signals from the wide area network and data signals from the wireless local area network.
摘要翻译：一种用于同时通信广域网与无线局域网的无线通信方法，装置和系统。具有被配置为发送控制信号的广域网的系统，被配置为发送数据信号的无线局域网，以及被配置为从广域网接收控制信号的移动站和来自无线局域网的数据信号。

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