Wide Area Network Patents (Class 370/901)
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Patent number: 8897320Abstract: A frame format for high data throughput wireless local area network transmissions includes a first preamble segment, a second preamble segment, and a variable length data segment. The first preamble segment includes at least one training sequence and a high throughput channel indication. The second preamble segment includes a high data throughput training sequence when the high throughput channel indication is set and includes a null segment when the high data throughput training sequence is not set.Type: GrantFiled: July 8, 2011Date of Patent: November 25, 2014Assignee: Broadcom CorporationInventors: R. Tushar Moorti, Christopher J. Hansen, Jason A. Trachewsky
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Patent number: 8359033Abstract: A system and method of supporting packet-switched handover of a mobile station (MS) from a GERAN/UTRAN cell to a Generic Access Network (GAN) cell within a GAN. If the MS is within coverage of the GAN cell, the MS registers within the GAN triggering initiation of the packet-switched handover from the GERAN/UTRAN cell to the GAN cell. A preparation phase is then conducted for executing the packet-switched handover. The preparation phase includes identifying the MS context as part of the preparation phase and activating the GA-PSR TC towards the MS. Next, the packet-switched handover is executed, resulting in the MS switching to GAN mode. The MS then begins transferring packets via the GAN cell. The system and method also supports a packet-switched handover from the GAN cell to the GERAN/UTRAN cell.Type: GrantFiled: June 11, 2007Date of Patent: January 22, 2013Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: John Walter Diachina, Jari Tapio Vikberg, Nils Peter Östrup
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Patent number: 8170032Abstract: A method for externally controlling and managing a wireless local area network subscriber assigned to at least one wireless local area network includes requesting a service using the subscriber, checking an authorization of the subscriber to access the TCP/IP network, and establishing a connection via the TCP/IP network to the subscriber if the subscriber has the authorization to access the TCP/IP network. Signaling and/or information data are managed using a control and managing device connected to the public TCP/IP network via an interface device.Type: GrantFiled: February 12, 2004Date of Patent: May 1, 2012Assignee: Deutsche Telekom AGInventors: Alexander Mohri, Helge Vater, Michael Knuth, Matthias Molzahn, Christoph Henkels
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Patent number: 8086755Abstract: The invention provides multicast communication using distributed topologies in a network. The control nodes in the network build a distributed topology of processor nodes for providing multicast packet distribution. Multiple processor nodes in the network participate in the decisions regarding the forwarding of multicast packets as opposed to multicast communications being centralized in the control nodes.Type: GrantFiled: November 29, 2004Date of Patent: December 27, 2011Assignee: Egenera, Inc.Inventors: Edward T. Duffy, IV, Scott M. Geng, Hai Huang, Hua Qin
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Patent number: 7969998Abstract: A method and system for providing network management communication between a plurality of network elements are disclosed. A method includes creating a tunnel configured for transmitting data between the network elements and transmitting network management information over the tunnel using a network management protocol. The tunnel passes through a gateway network element configured to communicate with the network elements utilizing the network management protocol.Type: GrantFiled: June 10, 2005Date of Patent: June 28, 2011Assignee: Cisco Technology, Inc.Inventors: Krishna Kanakasapapathi, Lee Alan Shombert, Stephen Daniel Darryl James, Alec Hothan, Thomas Wesley Hoffman, Jin Huai
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Patent number: 7949121Abstract: A contact center 100 including a grouping agent 232 that is operable to (a) select a first work item 308a, 312a, 316a, or 320a for servicing by a contact center resource; (b) determine whether the first work item is related to a second work item 308b, 312b, 316b, or 320b; and (c) when the first work item is related to the second work item, create, for servicing by the contact center resource, a first work item grouping comprising the first and second work items.Type: GrantFiled: March 1, 2005Date of Patent: May 24, 2011Assignee: Avaya Inc.Inventors: Andrew D. Flockhart, Gary Edward Olmsted, Robert C. Steiner
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Patent number: 7903591Abstract: The present invention provides an information processing system enabled to transmit and receive video mails at a higher transfer rate and at reduced cost. In this system, a file server sends a low capacity notification mail, which notifies the presence of a video mail sent from a portable terminal, to another portable terminal. This portable terminal accesses the file server in response to the notification mail, and downloads the video mail therefrom via a WLAN network that is a broadband communication line.Type: GrantFiled: May 26, 2004Date of Patent: March 8, 2011Assignee: Sony CorporationInventor: Masataka Wakamatsu
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Patent number: 7742484Abstract: A Fibre Channel router used to join fabrics. EX_ports are used to connect to the fabrics. The EX_port joins the fabric but the router will not merge into the fabric. Ports in the Fibre Channel router can be in a fabric, but other ports can be connected to other fabrics. Fibre Channel routers can be interconnected using a backbone fabric. Global, interfabric and encapsulation headers are developed to allow routing by conventional Fibre Channel switch devices in the backbone fabric and simplify Fibre Channel router routing. Phantom domains and devices must be developed for each of the fabrics being interconnected. Front phantom domains are present at each port directly connected to a fabric. Each of these is then connected to at least one translate phantom domain. Zoning is accomplished by use of a special LSAN zoning naming convention. This allows each administrator to independently define devices are accessible.Type: GrantFiled: July 30, 2004Date of Patent: June 22, 2010Assignee: Brocade Communications Systems, Inc.Inventors: Dennis Hideo Makishima, Daniel Ji Yon Park Chung
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Patent number: 7707271Abstract: Personalized content is provided over a communications network such as the Internet. Providing personalized content includes both generating content which depends on the recipient of that content and delivering that content in a manner that depends on the recipient. Although methods of providing personalized content are known, none of those methods provide a mechanism for deciding when and how to personalize content. By enabling a content provided to send policy data to local caches and having a local agent computer arrange for content files to be delivered in accordance with those policy files, such a mechanism is provided.Type: GrantFiled: April 19, 2002Date of Patent: April 27, 2010Assignee: British Telecommunications plcInventors: Steven Rudkin, Michael Rizzo, Andrew R Carver
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Patent number: 7573898Abstract: A LAN Service Unit (LANSU) backplane extender provides an inexpensive way to increase LANSU backplane bandwidth so that the performance degradation that may otherwise result can be avoided.Type: GrantFiled: December 29, 2003Date of Patent: August 11, 2009Assignee: Fujitsu LimitedInventors: Gary Burrell, Roy Charles McNeil, Jr.
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Patent number: 7539501Abstract: A method for receiving a frame in a high data throughput wireless local area network begins by receiving a preamble of the frame via a channel in accordance with a default receiver filter mask. The processing continues by validating the preamble. The processing continues by, when the preamble is validated, interpreting the preamble to determine a high data throughput channel configuration. The processing continues by reconfiguring the default receiver filter mask in accordance with the high data throughput channel configuration to produce a reconfigured receiver filter mask. The processing continues by receiving a data segment of the frame in accordance with the reconfigured receiver filter mask.Type: GrantFiled: February 13, 2004Date of Patent: May 26, 2009Assignee: Broadcom CorporationInventors: Tushar Moorti, Christopher J. Hansen, Jason A. Trachewsky
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Patent number: 7447183Abstract: Methods and apparatus for processing a registration request packet received from a mobile node during registration are disclosed. The registration request packet is received from a mobile node. The Home Agent then determines whether an IP address has previously been assigned to the mobile node. When the Home Agent determines that an IP address has previously been assigned to the mobile node, the Home Agent obtains the IP address previously assigned to the mobile node, composes a registration reply including the IP address previously assigned to the mobile node and sends the registration reply to the mobile node. When the Home Agent determines that an IP address has not previously been assigned to the mobile node, the Home Agent assigns an IP address to the mobile node, composes a registration reply including the IP address and sends the registration reply to the mobile node.Type: GrantFiled: November 20, 2002Date of Patent: November 4, 2008Assignee: Cisco Technology, Inc.Inventor: Kent K. Leung
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Patent number: 7370094Abstract: In order to adjust the maximum size of the information sequences transmitted by a plurality of terminals in a network, according to a predetermined network protocol, between two subnetworks supporting different maximum sizes of information sequence: there is stored in an information base, for each of the terminals, an identifier for this terminal and the maximum size of the information sequences allowed by the network protocol for communicating with this terminal; the information base is updated from the analysis of any information sequence conveyed in one of the subnetworks; then, for each information sequence to be transmitted: the identifier of the destination terminal and the corresponding maximum size of the information sequences are read in the information base; the maximum size read is compared with the current maximum size allowed by the network protocol; and, if the maximum size read is less than the current maximum size, the current maximum size is adjusted by allocating to it the value of the maximType: GrantFiled: April 15, 2003Date of Patent: May 6, 2008Assignee: Canon Kabushiki KaishaInventors: Pascal Rousseau, Patrice Nezou
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Patent number: 7269430Abstract: A frame format for high data throughput wireless local area network transmissions includes a first preamble segment, a second preamble segment, and a variable length data segment. The first preamble segment includes a first training sequence, a second training sequence, and a high throughput channel indication, wherein the first training sequence is within a first set of subcarriers of a channel and the second training sequence is within a second set of subcarriers of the channel, wherein the first set of subcarriers is a subset of the second set of subcarriers. The second preamble segment includes a third training sequence within a third set of subcarriers of the channel, wherein the second set of subcarriers is a subset of the third set of subcarriers. The variable length data segment utilizes the third set of subcarriers to convey data.Type: GrantFiled: February 13, 2004Date of Patent: September 11, 2007Assignee: Broadcom CorporationInventors: Tushar Moorti, Christopher J. Hansen, Jason A. Trachewsky
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Patent number: 7006837Abstract: An electronic (or computer) apparatus (10) has a current position data output unit (13) and an area data output unit (14) responsive to current position data from the current position data output unit for producing specific country data representative of a specific country including a current position. A wireless LAN connecting unit (12) is preliminarily given a plurality of wireless LAN communication modes corresponding to a plurality of country data. Upon reception of the specific country data, the wireless LAN connecting unit automatically sets, as a selected communication mode, one of the wireless LAN communication modes which corresponds to the specific country data and carries out transmission/reception via a wireless LAN (11) in the selected communication mode. Each of the wireless LAN communication modes is determined by a radio frequency channel and a transmit power level used in a country represented by the country data.Type: GrantFiled: September 29, 2003Date of Patent: February 28, 2006Assignee: NEC Infrontia CorporationInventors: Shinsuke Shiota, Yoshikazu Kobayashi
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Patent number: 6807181Abstract: A method, system, and computer program product for accessing server resources by a client communicating control data to a server. A context object is associated to the control data. The context object includes methods for recording within the context object a set of properties identifying the client. A request packet is created from the control data and the context object. The request packet is transmitted to the server. The context object is passed to at least one method on the server. The method uses the context object to access the server resources.Type: GrantFiled: May 19, 1999Date of Patent: October 19, 2004Assignee: Sun Microsystems, Inc.Inventor: Paul Weschler
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Publication number: 20040203873Abstract: A system and method of informing a WAN user of nearby WLAN access points, comprising determining a current position of a mobile appliance associated with the WAN user, transmitting the current position of said mobile appliance to a WAN service provider over a WAN network, determining the location of one or more WLAN access points that are accessible to the WAN user from the current position of the mobile appliance to provide a WLAN location information; and transmitting the WLAN location information to the mobile device over the WAN network, thereby enabling the WAN user to access and utilize a WLAN network.Type: ApplicationFiled: September 19, 2002Publication date: October 14, 2004Inventor: William H. Gray
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Patent number: 6765920Abstract: A push-type information service to a client located within a local network and having only a local IP address becomes possible via a network address converting apparatus. A network address conversion program implementing the network address converting process may be stored on a storage medium. When assignment of an Internet IP address to a client is requested by a host server, an IP address assigning unit assigns an Internet IP address to that client. An address conversion table producing unit produces an address conversion table describing the correspondence between the Internet IP address assigned to the client and the local IP address of the client. An address converter notifies the host server of the assigned Internet IP address. After that, if the host server sends data to the acquired Internet IP address, the address converter converts the destination of the data to the corresponding local IP address of the client by referring to the address conversion table.Type: GrantFiled: October 29, 1999Date of Patent: July 20, 2004Assignee: Mitsubishi Materials CorporationInventors: Kazuyoshi Tari, Hiroyuki Unoki, Tumoru Nagira
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Patent number: 6732215Abstract: An expandable multiprocessor computer system is provided incorporating a master computer, control computers and servant computers housed in modular units. Servant computers of the super scalable multiprocessor system act as cells of a singular entity enhancing system performance over conventional individually networked computers. Application information is transported between servant computers by way of a standard ultra high speed primary network as opposed to a specialized ultra high speed back plane. The design of the primary network allows for parallel internal data transfer in single modules, and allows for parallel internal data transfer between multiple modules through the provision of control computers in each module. Administration information is transported between the master computer, control computers and servant computers by way of a secondary network.Type: GrantFiled: February 5, 2001Date of Patent: May 4, 2004Assignee: Total ImpactInventors: Mitchell Smith, Karsten Jeppesen
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Patent number: 6681349Abstract: Each agent unit gets status information indicating the state of each of network printers connected by a LAN from the network printers every first time period. Whenever each agent unit gets the status information from the network printer, it overwrites a status log data file with the gotten status information. Each agent unit converts all status information stored in the status log data file into status mail of electronic mail and transmits the status mail to a mail server every second time period longer than the first time period. On the other hand, a console unit accesses the mail server and reads the status mail in a proper time period to the console unit.Type: GrantFiled: June 11, 2003Date of Patent: January 20, 2004Assignee: Seiko Epson CorporationInventor: Hiroaki Sekizawa
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Patent number: 6643363Abstract: A telephone number relocation guidance system that consists of a server (3) on the Internet (1) and terminal (2). The terminal (2) comes with input method that allows users to enter their information such as telephone number and etc, and display method to display the telephone number and other information, from the server (3). The server (3) has a database stored with numerous records of old telephone numbers and its corresponding new telephone number, and owner of the telephone and the processing unit sending the searched information of the old telephone number and its corresponding new telephone number entry from the terminal (2) and coming from the database.Type: GrantFiled: September 19, 2000Date of Patent: November 4, 2003Inventor: Noboru Miura
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Patent number: 6604212Abstract: Each agent unit gets status information indicating the state of each of network printers connected by a LAN from the network printers every first time period. Whenever each agent unit gets the status information from the network printer, it overwrites a status log data file with the gotten status information. Each agent unit converts all status information stored in the status log data file into status mail of electronic mail and transmits the status mail to a mail server every second time period longer than the first time period. On the other hand, a console unit accesses the mail server and reads the status mail in a proper time period to the console unit.Type: GrantFiled: May 24, 2002Date of Patent: August 5, 2003Assignee: Seiko Epson CorporationInventor: Hiroaki Sekizawa
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Publication number: 20030140353Abstract: A digital headend architecture and full service network are provided to selectively demodulate and decode a variety of digital and analog feeds into baseband signals or pass digital programming through the headend. In accordance with one embodiment, the head end is provided with digital-turn-around capability to allow precompressed signals to passed through the head end with out any decompress or decoding into baseband signals. The head end includes at least one receiver for receiving signals sent by satellite, at least one antenna for receiving over-the-air signals as baseband composite video and audio signals, and a decoder connected to the at least one receiver for converting received satellite signals into baseband video and audio signals. At least one MPEG encoder is provided for encoding the baseband video and audio composite signals into multiplexed Single Program Transport Streams (SPTS).Type: ApplicationFiled: March 3, 2003Publication date: July 24, 2003Applicant: Qwest Communications International Inc.Inventors: Keith F. Hugenberg, Martin William Rau, Atis Ojars Jurka
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Patent number: 6501746Abstract: Methods and apparatus for assigning an IP address to a mobile node during registration are disclosed. According to one aspect, a registration request is sent by a mobile node. A mobile node ID associated with the mobile node is obtained. A registration request packet is then composed. The registration request packet stores at least a portion of the mobile node ID in the registration request packet. The registration request packet is sent to a Home Agent associated with the mobile node. According to another aspect, a registration request packet is processed by a Home Agent. The Home Agent receives the registration request packet and ascertains whether the mobile node designated by the registration request packet needs an IP address. An IP address is assigned to the mobile node if it is ascertained that the mobile node needs an IP address. A registration reply specifying the IP address assigned to the mobile node is then composed.Type: GrantFiled: January 8, 1999Date of Patent: December 31, 2002Assignee: Cisco Technology, Inc.Inventor: Kent K. Leung
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Patent number: 6466572Abstract: A technique for multiplexing high speed computed data with digitized voice signals onto a fiber optic cable for transfer to a local central office. The data packets of a number of computers are networked by way of a distributed hub that extends to residences, offices, apartments, etc. The data packets are switched outside the switching fabric of a local central office and routed to the internet or elsewhere. Command signals that are for accessing the internet are transmitted and received as 10 MHz Ethernet data packets on the distributed hub.Type: GrantFiled: June 3, 1999Date of Patent: October 15, 2002Assignee: Marconi Communications, Inc.Inventors: Barry J. Ethridge, Mahlon D. Kimbrough, James J. Gainer, Joseph L. Whitehead
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Patent number: 6452920Abstract: In accordance with embodiments of the invention, Mobile IP binding information is used to deliver mobile terminating packets using layer-2 tunneling. When terminating packets destined for a mobile node are received by a home network for the mobile node, the Mobile IP binding is used to obtain the address of a foreign network to which the mobile node is attached. A Layer 2 Tunneling Protocol tunnel is created between the home network and the foreign network, and an outgoing L2TP call is made from the home network to the foreign network. A call is made from the foreign network to the mobile node, and a PPP session is established between the home network and the mobile node, via the Layer 2 Tunneling Protocol tunnel between the home network and the foreign network. After the PPP session is established the home network can optionally assign the mobile node a private IP address, and translate the home IP address labeling the terminating packets to the private IP address.Type: GrantFiled: December 30, 1998Date of Patent: September 17, 2002Assignee: Telefonaktiebolaget LM EricssonInventor: David R. Comstock
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Patent number: 6434226Abstract: In order to realize notification of an incoming call at a client terminal utilizing an existing extension switch system, an exchange of the extension switch system is linked with a server of client terminals such that notification of an incoming call to an extension is made also at a client terminal. Further, whether an incoming call to a client terminal is permitted or not can be changed depending on whether the client terminal is in a log-in state or not. Still further, notification of an incoming call to a client terminal is made by reproducing an audio file or the like to realize a flexible extension call. Further, a response to an incoming call at a client terminal is managed by a timer such that, in case of time out, an ordinary extension rings. Still further, the server is made to have alternative recipient information such that notification of an incoming call is transferred via the server.Type: GrantFiled: August 12, 1997Date of Patent: August 13, 2002Assignee: Fujitsu LimitedInventor: Satoshi Takahashi
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Patent number: 6373836Abstract: An Internet Protocol Network Telephony call center system has a plurality of call centers managed by a central controller. The central controller accepts IPNT calls and routes the calls to the plurality of call centers to be distributed to agents based on status of the call centers maintained in a stat-server coupled to the central controller. The call centers periodically report call center status to the stat-server at the central controller via dedicated data links. In the event of failure of a data link between a call center and the central controller, the central controller continues to route calls by retrieving historical data previously reported for the disconnected call center, estimating the current status of the call center based on the historical data, and using the estimates with current status of other call centers in making routing decisions.Type: GrantFiled: January 22, 1998Date of Patent: April 16, 2002Assignee: Genesys Telecommunications Laboratories, Inc.Inventors: Vladimir N. Deryugin, Dmitry A. Torba, Igor Neyman
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Patent number: 6369424Abstract: A field effect transistor having a high breakdown withstand capacity is provided. An active region 7a is surrounded by a fixed potential diffusion layer 16, and a channel region 15 is formed in the active region 7a. A gate pad 35 is provided outside the fixed potential diffusion layer 16. Minority carriers injected at a peripheral region of the active region 7a flow into the fixed potential diffusion layer 16, which prevents breakdown attributable to concentration of the carriers. The fixed potential diffusion layer 16 is surrounded by a plurality of guard ring diffusion layers 171 through 174, and a pad diffusion layer 18 formed in a position under the gate pad 35 is connected to the innermost guard ring diffusion layer 171. Since this encourages expansion of a depletion layer under the gate pad 35, an increased breakdown voltage is provided.Type: GrantFiled: June 20, 2000Date of Patent: April 9, 2002Assignee: Shindengen Electric Manufacturing Co., Ltd.Inventors: Hideyuki Nakamura, Nobuki Miyakoshi
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Patent number: 6243375Abstract: The present invention relates to an electronic advertising system. More specifically, the present invention provides a computer based psychographic matching system that is significantly more effective and convenient for the advertiser. In the present invention, when a person places a personal ad on the system, either via a telephone or via the Internet, the person creates a personal psychographic profile (a subjective makeup of preferences) of himself by selecting his preference for various items, such as musical pieces, environmental sounds, poetry selections, etc. At the conclusion of the profiling process, the system automatically finds other advertisers (whether they placed their ad via audiotext or the Internet) whose profiles match the new advertiser's profile. The system then gives the new advertiser information on how to contact all of the recorded matches.Type: GrantFiled: May 29, 1997Date of Patent: June 5, 2001Inventor: Gregory J. Speicher
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Patent number: 6154770Abstract: An internetwork that is especially designed to seamlessly compensate for a failure in the system, and to allow the testing of modifications to the system, without interrupting the normal systems operations. The internetwork is especially useful for financial services and related transaction data where the users of that data and/or services are located in multiple branch offices physically separated from each other and from the data and/or services desired. The internetwork includes a modularized communications system, wherein users are connected to specific modules, and each of the modules operates preferably at less than 50% capacity. In more preferred embodiments, each module includes dual (b)routers for connecting to a core tier and separate dual (b)routers for connecting to the users.Type: GrantFiled: October 30, 1997Date of Patent: November 28, 2000Assignee: Merrill Lynch & Co. Inc.Inventor: John S. Kostakos
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Patent number: 5826018Abstract: A method and apparatus are disclosed for determining the starting location and starting protocol of LAN data in a WAN frame. A list of offsets and a list of LAN protocols are maintained. For each offset in the offset list, the WAN frame is parsed beginning at the offset and each LAN protocol in the LAN protocol list is looked for, one at a time. If no LAN protocol is recognized to begin at this offset, the next offset in the offset list is chosen and all of the LAN protocols are tried once again beginning at the newly-chosen offset. This process is repeated until all of the LAN protocols are tried at all of the offsets, or until a LAN protocol is recognized. If a LAN protocol is recognized, the offset at which the protocol was recognized is reported, together with the identity of the LAN protocol that was recognized at the offset. If a LAN protocol is not recognized, an appropriate error message is reported.Type: GrantFiled: April 2, 1996Date of Patent: October 20, 1998Assignee: Hewlett-Packard CompanyInventors: Robert L. Vixie, Pankaj K. Shah
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System and method of testing open systems interconnection (OSI) layers in telecommunication networks
Patent number: 5732213Abstract: A development test system and method for testing Open Systems Interconnection (OSI) layers 3 through 7 of a communications protocol utilized between nodes in a telecommunications network. The system comprises a protocol simulator that simulates OSI layers 3 through 7 of the communications protocol, a local area network (LAN) connected to the protocol simulator with a first Internet socket interface which replaces OSI layers 1 and 2 of the simulated communications protocol, and a target telecommunication node connected to the LAN with a second Internet socket interface and performing operations with blocks of application software to validate the use of the communications protocol with the target telecommunication node. A protocol interface gateway (PIG-tool) is connected to the LAN with a third Internet socket interface, and serves as a gateway to a target telecommunication system emulator.Type: GrantFiled: March 22, 1996Date of Patent: March 24, 1998Assignee: Ericsson Inc.Inventors: Robert J. Gessel, Kevin Autrey, William C. Swetman, Jay Baker -
Patent number: 5680589Abstract: Ring communication system using ISDN including terminal adapter hardware and associated software that can be combined with a general purpose computer and used to provide a work station or party unit which can be linked together with other similarly configured units via the ISDN to provide a closed wide area network. Although the system can be implemented on any type of computer using any programming language, in the preferred embodiment proprietary software designated WinISDN.DLL in a Microsoft Windows.TM. environment is used to implement a novel algorithm in Visual Basic or C-language programming systems. The hardware aspects of the invention are provided in a terminal adapter card that includes a dual port RAM, an ISDN controller, and a subscriber access controller. The adapter card plugs into the (E)ISA bus that is the PC standard bus/backplane.Type: GrantFiled: June 8, 1995Date of Patent: October 21, 1997Inventor: Edwin E. Klingman