Class / Patent application number | Description | Number of patent applications / Date published |
370251000 | Having dedicated test line or channel | 15 |
20080298262 | Broadband Test Line Access Circuit, Broadband Test-Line Access Board And Broadband Test Device - A broadband test line-access unit, including a first test terminal, a second test terminal, a third test terminal, a signal splitter, a first switch, a second switch, a third switch, a first interface terminal, a second interface terminal and a third interface terminal. A broadband test line-access board, including at least two broadband test line-access units, a set of internal test buses, a fourth switch, a fifth switch and a sixth switch, the set of internal test buses including an internal inner-test bus, an internal outer-test bus and an internal auxiliary-test bus. A broadband test device, including at least one broadband test line-access boards, an eighth switch, a ninth switch, a test control module. The broadband test device is of simple structure and low cost, facilitates a port level N+1 backup function within a board, and thus can provide improved communication reliability. | 12-04-2008 |
20080304421 | Internet Latencies Through Prediction Trees - A prediction tree for estimating values of a network performance measure. Leaf nodes of the prediction tree are associated with networked computing devices and interior nodes are not necessarily representative of physical network connections. Values are assigned to edges in the prediction tree and the network performance measure relative to two computing devices represented by two nodes of the tree is estimated by aggregating the values assigned to the edges in the path in the prediction tree joining the two edges. Mechanisms for adding nodes representing computing devices to the prediction tree, for identifying a closest node representing a computing device in the prediction tree, for identifying a cluster of devices represented by nodes of the tree, and for rebalancing the prediction tree are provided. | 12-11-2008 |
20090003226 | Network intermediary device with connection test packets - A network intermediary device which determines the connection status with remote network intermediary devices by means of generating continuously connection test packets at same or different time intervals. When one remote network intermediary device does not receive the connection test packets within a predetermined timeout interval or has received fragged or damaged packets, the connection between the local network intermediary device and the remote network intermediary device is determined to be abnormal. | 01-01-2009 |
20090168658 | Method and System of Testing Video Access Devices - A test controller operable to test a video access device can include a first port coupled to particular test equipment and a second port coupled to video access devices. Each video access device can include a wideband link and a test port. The particular test equipment and each of the video access devices can be remotely located as compared to one another. The test controller can include a processor that is operable to send a command to connect the test port of a first particular video access device of the video access devices to its corresponding wideband link, and establish connectivity between the test equipment and a second particular video access device of the video access devices. The test controller can be part of a system that includes methods used to test video access devices. | 07-02-2009 |
20100142387 | NET-BASED RECORDING OF TELEPHONE CONVERSATIONS - The invention relates to a method and a device for carrying out the method for the ability to regulate and control a recording of a telecommunications connection, wherein the signals generated in the telecommunications connection are tapped and stored in a system. The invention is characterized in that a storage occurs according to the specifications of the respective telecommunications subscriber and/or the respective network operators involved, and that the signals of the telecommunications connection to be recorded can be stored as encrypted data files directly in the network of the telecommunications net used, wherein said data files can be decrypted, and the contents reproduced, by means of appropriate release by the subscribers of the telecommunications connection and/or by means of appropriate authorization of third parties. | 06-10-2010 |
20110032830 | Live Router Migration - Live router migration is implemented by separating the logical features of a virtual router from its physical features. Tunnels are established between a source (physical) router and a destination (physical) router, allowing the control plane of the virtual router being migrated to send and receive messages from the destination router. The control plane information is then transferred to the destination router, which functions to clone the data plane at the destination router. Outgoing links from the destination router are then be established. The double appearance of the data plane at both the source and destination routers allows for the data plane information to be transferred asynchronously over to the destination router. Once all of the data plane information has been transferred, incoming data traffic links at the destination router can be established and the tunnels between the routers taken down. | 02-10-2011 |
20110069622 | Traffic Distribution Control - There is disclosed apparatus and processes for generating simulated network test traffic from a stored test traffic definition. A network test system or a user may select arbitrary ways to group flows of test traffic into streams, and to modify these streams before and during transmission of the test traffic by network test equipment. | 03-24-2011 |
20110158109 | METHOD OF FLOW CONTROL FOR DATA TRANSPORTED USING ISOCHRONOUS PACKETS OVER AN IEEE 1394-2000 SERIAL BUS NETWORK - An isochronous back channel is configured between a transmitting device and a receiving device. The isochronous back channel provides retransmission and flow control information from the receiving device to the transmitting device related to a stream of isochronous data packets transmitted from the transmitting device to the receiving device. An isochronous back channel packet for indicating a retransmission or flow control function to perform is configured and transmitted from the receiving device to the transmitting device over the isochronous back channel. A transmitting plug is configured on the receiving device and a receiving plug is configured on the transmitting device for implementing the isochronous back channel. The isochronous back channel packet includes a control instruction that instructs the transmitting device to either reset, stop or resume transmission of the stream of isochronous data packets being transmitted from the transmitting device to the receiving device. | 06-30-2011 |
20110317565 | METHOD AND APPARATUS FOR TESTING TRAFFIC AND AUXILIARY CHANNELS IN A WIRELESS DATA COMMUNICATION SYSTEM - Techniques to test performance of terminals and access points in CDMA data (e.g., cdma2000) systems. A framework of protocols and messages is provided to support systematic performance testing of terminals and to ensure interface compatibility. The framework comprises a Forward Test Application Protocol (FTAP) for testing forward channels and a Reverse Test Application Protocol (RTAP) for testing reverse channels. Techniques are also provided to (1) test different types of channels (e.g., traffic channels as well as auxiliary channels), (2) test bursty data transmissions, (3) support “persistence” testing (i.e., continued testing over connection and disconnection), (4) force the settings of certain auxiliary channels (e.g., so that the error rate of the channels may be determined), and (5) collect, log, and report various statistics that may be used to derive performance metrics such as throughput and packet error rate. | 12-29-2011 |
20120294157 | METHOD AND DEVICE FOR TRANSMITTING KEEPALIVE INFORMATION - The present invention provides a method for transmitting keepalive information, a terminal, and a network device. The method includes: transmitting, by a terminal, first information to a network device, where the first information is used to instruct the network device to determine keepalive information to be received; the terminal transmits keepalive information to the network device, where the network device is configured to optimize the keepalive information. With the present invention, signaling loads are reduced. | 11-22-2012 |
20130088977 | TEST TRAFFIC INTERCEPTOR - Presented are methods and apparatus for processing test traffic encapsulated within bidirectional subscriber connections on intermediate nodes. Test packet requests are generated by a test traffic controller and received at a node by an enhanced decapsulator, a decapsulator or at an ingress port. A tunnel header is extracted from the test packet requests and a determination is made as to whether the test packet request destination is for the receiving node or for another node. If the test packet request is for another node the test packet request is forwarded toward the destination node. If the test packet request is for the receiving node then a test packet reply is generated and the test packet reply is sent toward the test traffic controller. | 04-11-2013 |
20130322265 | SYSTEM AND METHOD FOR MONITORING AND OPTIMIZING NETWORK PERFORMANCE TO A WIRELESS DEVICE - The disclosed embodiments include a method for monitoring and optimizing network performance to a wireless device that includes determining network performance information of a wireless router and communicating data packets containing the network performance information to a network management device. In one embodiment, the network management device is configured to transmit instructional data packets to the wireless router that include instructions for optimizing network performance associated with the wireless device in response to identify a network performance problem associated with the wireless router. | 12-05-2013 |
20140098679 | METHOD AND SYSTEM FOR PIGGYBACKING RADIO DATA IN IP MEASUREMENTS - A method and system for measuring the performance of the end-to-end mobile subscriber connection is disclosed. Test traffic originating from the network is sent to the mobile device and the mobile device acting as a test traffic reflector includes current radio bearer conditions that may be impacting the end-to-end performance of the subscriber connection within the test traffic that is returned back to the source. The radio access node acting as a test traffic interceptor includes current radio cell conditions that may be impacting the end-to-end performance of all subscriber connections in the cell within the test traffic that is returned back to the source. The test equipment or controller collects, calculates and reports the IP test performance towards the mobile device and radio node with correlation to the radio bearer and radio cell performance. | 04-10-2014 |
20150304864 | METHOD FOR TESTING MULTIPLE DATA PACKET SIGNAL TRANSCEIVERS WITH A SHARED TESTER TO MAXIMIZE TESTER USE AND MINIMIZE TEST TIME - Methods for testing multiple data packet signal transceiver devices under test (DUTs) with a shared tester. The DUTs transmit their data packet signals until predetermined numbers of data packets have been transmitted or predetermined time intervals expire, following which, each DUT awaits a synchronization request to begin transmitting data packets to the tester. Alternatively, the tester determines when its receiver is available for receiving data packets, following which, synchronization requests are sent to respective DUTs to initiate their transmissions of data packets to the tester. Further alternatively, power levels among data packets initially transmitted from the DUTs are monitored to determine when they are indicative of them having settled. As each DUT data packet signal power settles, a status signal indicating the settled nature of each DUT is provided to the tester which then begins receiving the respective DUT data packet signals, as they settle in power, for analysis. | 10-22-2015 |
20160182341 | Switching over the Mode of a Control Unit Between a Diagnostic Bus and an External Ethernet Connection | 06-23-2016 |