公开(公告)号：US07392424B2

公开(公告)日：2008-06-24

申请号：US11124134

申请日：2005-05-09

申请人： Chi Fai Ho ,  Amar Gupta ,  Madhu Grandhi ,  Alex Bachmutsky

发明人： Chi Fai Ho ,  Amar Gupta ,  Madhu Grandhi ,  Alex Bachmutsky

IPC分类号： G06F11/00

CPC分类号： H04L45/00 ,  H04L45/04 ,  H04L45/50 ,  H04L45/56 ,  H04L69/40

摘要： A router and routing protocol redundancy are disclosed to reduce service outage or degradation for a network device and thus to increase service availability on a network due to software and hardware failures of the network device. A network device such as router includes a redundancy platform having an active controller system and a standby controller system. A routing protocol state change is received or generated by the active controller system. The received or generated routing protocol state change is replicated to the standby controller system. By replicating the routing protocol state change, the standby controller system can maintain the routing protocol sessions for the network device if a failure occurs in the active controller system. Furthermore, the routing protocol states are maintained in realtime to handle the dynamic changes created by routing protocols.

摘要翻译： 公开了路由器和路由协议冗余以减少网络设备的服务中断或劣化，并因此由于网络设备的软件和硬件故障而增加网络上的服务可用性。 诸如路由器的网络设备包括具有主动控制器系统和备用控制器系统的冗余平台。 路由协议状态改变由主动控制器系统接收或生成。 接收或生成的路由协议状态改变被复制到备用控制器系统。 通过复制路由协议状态改变，如果主动控制器系统发生故障，则备用控制器系统可以维护网络设备的路由协议会​​话。 此外，路由协议状态被实时地维护以处理由路由协议创建的动态改变。

公开(公告)号：US06910148B1

公开(公告)日：2005-06-21

申请号：US09733284

申请日：2000-12-07

申请人： Chi Fai Ho ,  Amar Gupta ,  Madhu Grandhi ,  Alex Bachmutsky

发明人： Chi Fai Ho ,  Amar Gupta ,  Madhu Grandhi ,  Alex Bachmutsky

IPC分类号： H04L12/56 ,  H04L29/14 ,  G06F11/00

CPC分类号： H04L45/00 ,  H04L45/04 ,  H04L45/50 ,  H04L45/56 ,  H04L69/40

摘要： A router and routing protocol redundancy are disclosed to reduce service outage or degradation for a network device and thus to increase service availability on a network due to software and hardware failures of the network device. A network device such as router includes a redundancy platform having an active controller system and a standby controller system. A routing protocol state change is received or generated by the active controller system. The received or generated routing protocol state change is replicated to the standby controller system. By replicating the routing protocol state change, the standby controller system can maintain the routing protocol sessions for the network device if a failure occurs in the active controller system. Furthermore, the routing protocol states are maintained in realtime to handle the dynamic changes created by routing protocols.

公开(公告)号：US06633548B2

公开(公告)日：2003-10-14

申请号：US09773051

申请日：2001-01-30

申请人： Alex Bachmutsky ,  Vijay Chandler ,  Chi Fai Ho ,  Henry Tzeng

发明人： Alex Bachmutsky ,  Vijay Chandler ,  Chi Fai Ho ,  Henry Tzeng

IPC分类号： H04L1228

CPC分类号： H04L45/00 ,  H04L45/7453

摘要： A method and a system for managing a TCAM table are disclosed. A new route is inserted into the TCAM table at an available location using an index. The new route is added into a Patricia tree organized by a mask length associated with the new route. Routes having common prefixes with the new route are searched for in Patricia trees organized by longer mask lengths and in Patricia trees organized by shorter mask lengths to locate a chain for the new route. The chain for the new route groups routes having common prefixes. The routes in the chain are sequenced in an order of longer prefix first such that a route at a top of the chain has a longest prefix. A swap of routes in the chain is performed to accommodate the new route and to maintain the longer prefix first order.

摘要翻译： 公开了一种用于管理TCAM表的方法和系统。 在可用位置使用索引将新路由插入到TCAM表中。 新路由被添加到由与新路由相关联的掩码长度组织的Patricia树中。 在由更长掩码长度组织的Patricia树中以及由较短掩模长度组织的Patricia树中搜索具有新路由的公共前缀的路由以找到用于新路由的链。 用于新路由组的链路具有公共前缀的路由。 链中的路由以先前较长的前缀的顺序排序，使得链的顶部的路由具有最长的前缀。 执行链中的路由交换以适应新路由并维护较长的前缀一级。

公开(公告)号：US06870837B2

公开(公告)日：2005-03-22

申请号：US09378201

申请日：1999-08-19

申请人： Chi Fai Ho ,  Amar Gupta ,  Prabhas Kejriwal ,  Ravi Bail Bhat

发明人： Chi Fai Ho ,  Amar Gupta ,  Prabhas Kejriwal ,  Ravi Bail Bhat

IPC分类号： H04L12/64 ,  H04L12/66

CPC分类号： H04L12/6418 ,  H04L2012/6472 ,  H04L2012/6475 ,  H04L2012/6481

摘要： The present invention establishes a circuit emulation service (CES) over an internet protocol (IP) network based on properties of the IP network. The CES emulates a circuit from a local interworking function to a remote interworking function. Data that is received at a constant bit rate at the local interworking function is encapsulated into a number of IP packets configured according to the CES. The IP packets are transported from the local interworking function to the remote interworking function according to the CES. In one embodiment, each IP packet also includes data segments for simultaneously encapsulating multiple constant bit rate circuits. In another embodiment, each data segment includes a separate CES circuit header.

摘要翻译： 本发明基于IP网络的特性，通过因特网协议（IP）网络建立电路仿真服务（CES）。 CES仿真从本地互通功能到远程互通功能的电路。 在本地互通功能下以固定比特率接收的数据被封装成根据CES配置的多个IP分组。 IP分组根据CES从本地互通功能传输到远程互通功能。 在一个实施例中，每个IP分组还包括用于同时封装多个恒定比特率电路的数据段。 在另一个实施例中，每个数据段包括单独的CES电路接头。

公开(公告)号：US06947375B2

公开(公告)日：2005-09-20

申请号：US10353196

申请日：2003-01-27

申请人： Vimal Parikh ,  Amar Gupta ,  Chi Fai Ho

发明人： Vimal Parikh ,  Amar Gupta ,  Chi Fai Ho

IPC分类号： G06F20060101 ,  H04L1/00 ,  H04L12/28 ,  H04L12/56

CPC分类号： H04L49/30 ,  H04L49/3027 ,  H04L49/3045 ,  H04L49/552

摘要： The system provides an IP network card that comprises a redundancy configuration register; an interface; and redundancy mapping logic. The redundancy configuration register stores card configuration data. The interface receives slot active signals from other cards. The redundancy mapping logic is communicatively coupled to the register and interface. The logic maps a packet to a slot having an active card based on the data in the register, an address in the packet, and received slot active signals.

摘要翻译： 该系统提供包括冗余配置寄存器的IP网卡; 界面; 和冗余映射逻辑。 冗余配置寄存器存储卡配置数据。 该接口从其他卡接收槽活动信号。 冗余映射逻辑通信地耦合到寄存器和接口。 该逻辑基于寄存器中的数据，分组中的地址和接收到的时隙活动信号，将分组映射到具有活动卡的时隙。

公开(公告)号：US06934280B1

公开(公告)日：2005-08-23

申请号：US09565675

申请日：2000-05-04

申请人： Chi Fai Ho ,  Shashank Merchant ,  Amar Gupta ,  Prabhas Kejriwal ,  Ravi Bail Bhat ,  Guatam Dewan

发明人： Chi Fai Ho ,  Shashank Merchant ,  Amar Gupta ,  Prabhas Kejriwal ,  Ravi Bail Bhat ,  Guatam Dewan

IPC分类号： H04J3/16 ,  H04L12/24 ,  H04L12/28 ,  H04L12/46 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06

CPC分类号： H04L12/4633 ,  H04L29/06 ,  H04L41/5003 ,  H04L41/5009 ,  H04L41/5022 ,  H04L41/5032 ,  H04L45/00 ,  H04L45/52 ,  H04L47/10 ,  H04L47/20 ,  H04L47/2425 ,  H04L47/2458 ,  H04L47/26 ,  H04L47/32 ,  H04L69/08 ,  H04L69/18 ,  H04L2212/00

摘要： One embodiment of the present invention receives a plurality of network services, maps the plurality of network services to a single network service at a network layer higher than layer 2, and transmits the single network service. Another embodiment of the present invention receives a single network service at a network layer higher than layer 2, maps the single network service to a plurality of network services, and transmits the plurality of network services.

摘要翻译： 本发明的一个实施例接收多个网络服务，将多个网络服务映射到高于层2的网络层上的单个网络服务，并发送单个网络服务。 本发明的另一实施例在高于层2的网络层接收单个网络服务，将单个网络服务映射到多个网络服务，并发送多个网络服务。

公开(公告)号：US11960281B1

公开(公告)日：2024-04-16

申请号：US16711473

申请日：2019-12-12

申请人： Chi Fai Ho ,  Benson Junwun Ho

发明人： Chi Fai Ho ,  Benson Junwun Ho

IPC分类号： G05D1/00 ,  G05D1/02

CPC分类号： G05D1/0088 ,  G05D1/0287

摘要： In resource sharing by autonomous devices in an environment, first and second autonomous devices send first and second reservation requests, respectively, to a reservation controller for access to a resource in the environment required to perform first and second tasks. The first and second reservation requests include first and second requested utilizations, respectively, for usage of the resource. The first autonomous device receives a first permit with a first granted utilization, and the second autonomous device receives a second permit with a second granted utilization, for usage of the resource. Using the resource, the first autonomous device performs the first task according to the first granted utilization, and the second autonomous device performs the second task according to second granted utilization, where second granted utilization does not conflict with the first granted utilization.

公开(公告)号：US11060864B1

公开(公告)日：2021-07-13

申请号：US16254581

申请日：2019-01-22

申请人： Chi Fai Ho

发明人： Chi Fai Ho

IPC分类号： G01C11/06 ,  H04N5/247 ,  G01B11/00 ,  G06T7/70 ,  G01C3/08 ,  G06T7/55

摘要： A controller obtains a distance index associated with first and second cameras and a camera distance between the first and second cameras. The controller receives a first and second image captured by the first and second cameras, respectively. The first and second images include a first and second object image of an object, respectively. The controller calculates a first object distance between the first camera and the object using a distance index associated with the first and second cameras, the camera distance, the first object image, and the second object image. The controller calculates an object real size of the object using the first object distance, the second object image, the camera distance, and the distance index. The controller determines whether policy criteria are satisfied by the first object distance and/or the object real size. When satisfied, the controller performs an action associated with the criteria.

公开(公告)号：US10521636B1

公开(公告)日：2019-12-31

申请号：US15884033

申请日：2018-01-30

申请人： Chi Fai Ho ,  Augustine Junda Ho

发明人： Chi Fai Ho ,  Augustine Junda Ho

IPC分类号： G06K9/00 ,  G09G3/30 ,  G06F3/14 ,  G06T5/00 ,  G06K7/10 ,  G06T3/60

摘要： In a method for determining a distance of an object captured by a camera coupled to a controller, a controller of a computing device receives an image of the object and a label associated with the object. The controller identifies a label image of the label in the image and determines a label dimension of the label, the label dimension includes a real world size of the label. The controller determines a label image dimension of the label image, the label image dimension comprising a size of the label image, and determines a set of optical characteristics of the camera. The controller calculates a label distance using the set of optical characteristics of the camera, the label dimension, and the label image dimension. The controller announces the label distance using at least one output component coupled to the controller.

公开(公告)号：US09137388B2

公开(公告)日：2015-09-15

申请号：US11473752

申请日：2006-06-23

申请人： Chi Fai Ho ,  Shin Cheung Simon Chiu

发明人： Chi Fai Ho ,  Shin Cheung Simon Chiu

IPC分类号： H04M17/00 ,  G06Q20/04 ,  G06Q20/30 ,  G06Q20/34 ,  G07F7/08 ,  G07F7/10 ,  H04M1/247 ,  H04M17/02

CPC分类号： H04M17/00 ,  G06Q20/04 ,  G06Q20/305 ,  G06Q20/341 ,  G07F7/0886 ,  G07F7/1008 ,  H04M1/247 ,  H04M17/026 ,  H04M2250/14

摘要： A telephone with a card reader is disclosed. The telephone includes means for providing a first communication service. The card includes a memory, which stores information, where the telephone reads the information stored in the memory and provides a means for providing a second communication service based on the information. In providing the second communication service, the telephone obtains second communication service information from a datastore, which includes pairs of information and corresponding second communication service information. The telephone may include the datastore. The telephone may alternatively obtain the second communication service information from or a service server in response to a request. Alternatively, the information stored in the memory can be the second communication service information itself.

摘要翻译： 公开了具有读卡器的电话。 电话包括用于提供第一通信服务的装置。 该卡包括一个存储器，存储信息，其中电话机读出存储在存储器中的信息，并提供一种基于该信息提供第二通信服务的装置。 在提供第二通信服务时，电话从数据存储区获取第二通信服务信息，该信息包括信息对和对应的第二通信服务信息。 电话可能包括数据存储。 可替代地，响应于请求，电话可以从服务服务器获得第二通信服务信息。 或者，存储在存储器中的信息可以是第二通信服务信息本身。