Local Area Network Patents (Class 370/908)
  • Patent number: 6832091
    Abstract: A radio transmission method for carrying out radio transmission in a radio transmission network formed of plural communication stations by control of a communication station set up as a central control station, wherein one station of the plural communication stations determines whether it is capable of relaying a signal sent from another station according to a condition of a power supply or the presence/absence of portability and, if it is determined that the relay transmission is possible, the one station sets up itself in a condition capable of relay transmission.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: December 14, 2004
    Assignee: Sony Corporation
    Inventor: Shigeru Sugaya
  • Publication number: 20040205172
    Abstract: A control point server includes a CP stack module for sending a search message to the devices connected to a home network and parsing a response message received from a home network device; a description module for requesting a description of the device connected to the home network based on the parsed information transmitted from the CP stack module; and a component generation module for organizing a component, which describes the services of the device connected to the home network, based on the description requested by the description module. Accordingly, discovery and description processes for devices on a home network are managed by the control point server, and thus, efficient access to the devices on the home network is gained.
    Type: Application
    Filed: February 13, 2004
    Publication date: October 14, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Doheon Kim
  • Publication number: 20040203555
    Abstract: A wire transmitting facility includes a network access device for accessing into network systems, and a transmitting device having an electric power supplier and an electric wire transmitting integrated circuit coupled between an electric power supply and the network access device. The electric power supplier may convert the received electric power to energize both the network access device and the electric wire transmitting integrated circuit. The transmitting integrated circuit includes a coupler for communicating with electric lines of family housings or buildings. via a wire transmitting facility.
    Type: Application
    Filed: September 20, 2002
    Publication date: October 14, 2004
    Inventor: Jesse Kao
  • Publication number: 20040202206
    Abstract: Disclosed is a private network system with a ubiquitous service function and a method for operating the same. The private network system with a ubiquitous service function includes: at least one aware-device connected to one or more electronic appliances, in which the aware-device senses context information related to a user and an environment, and a service request command that is inputted into the aware-device; and a server which acquires service data corresponding to the context information related to the user and the environment and the service request command, which are transmitted from the aware-device, and transmits the acquired service data to the aware-device. In addition, the server transmits the operation control signals for controlling the operation of the electronic appliances connected to the aware-device to the aware-devices, whereby the electronic appliances connected to the aware-device output service data based on the operation control signal.
    Type: Application
    Filed: December 10, 2003
    Publication date: October 14, 2004
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Sung-Hwan Lee
  • Patent number: 6801756
    Abstract: Aspects of the invention are found in an apparatus for monitoring data on a wireless network. The data is transmitted according to a wireless data network protocol across the network. The apparatus is contained on a portable wireless network analysis device. The portable wireless network analysis device has a wireless network interface that communicatively couples the portable wireless network analysis device to the wireless network. This allows the portable wireless network analysis device to receive data from the wireless network. The portable wireless network analysis device also has a network traffic analyzer. The network traffic analyzer is communicatively coupled to the wireless network interface. The analyzer receives and analyzes the data received from the wireless network. The portable wireless network analysis device is capable of being operated by user at one location and transported to second location.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: October 5, 2004
    Assignee: Networks Associates Technology, Inc.
    Inventors: Ajay Agrawal, Sriharsha Sathya, Yashovan Neelakantamurthy, Apurva Prakash, Raghavendra Malpani, Abhishek Saraswati, Suryaprashant Rao, Ashish Hate, Peter O. Schmitz
  • Patent number: 6768742
    Abstract: A computer chip having on-chip internetworked modules and implementing a network protocol for on-chip and, also preferably, off-chip data transfers. The modules on chip are interconnected through a plurality of on-chip packet-switched local area networks or LANs. The familiar Internet topology may be implemented on-chip with each module being treated as a “host.” A plurality of network interconnect (e.g. routers, gateways, etc.) may also be provided to interconnect the plurality of LANs. The computer chip implements a network protocol for on-chip data transfer. The network protocol may be TCP/IP. In that case, the computer chip itself may be treated as an Internet. This flexible chip architecture in that the computer chip may have modules clustered conveniently according to functionality, and the various modules may interact with one another without overburdening the chip packing density.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: July 27, 2004
    Assignee: Advanced Micro Devices, Inc.
    Inventor: Gary Michael Godfrey
  • Publication number: 20040133913
    Abstract: An apparatus and method for polling stations that transmit periodic traffic streams are disclosed. The illustrative embodiment polls the station in accordance with a polling schedule that is generated to reduce the delay between (i) when the station queues a frame, and (ii) when the station transmits the frame. This reduces the waiting time of the frame in the station, and is, therefore, especially advantageous for latency-sensitive applications such as voice and video telecommunications. In accordance with the illustrative embodiment, a station that expects to periodically queue a frame for transmission sends a polling request to the polling coordinator, which request enables the polling coordinator to generate an advantageous polling schedule.
    Type: Application
    Filed: September 29, 2003
    Publication date: July 8, 2004
    Inventor: Mathilde Benveniste
  • Publication number: 20040117834
    Abstract: Certain aspects of the invention may be found in a method and system for setting up devices for communication on a communication network and may include a headend that may detect when a first device is initially coupled to the communication network and assign an address to the first device. The headend may transfer the assigned address to the first device and in response to receiving the transferred assigned address and/or an identifier of the first device from the first device, the headend may communicate the transferred received assigned address and/or the identifier of the first device to at least one communication server coupled to the communication network. The assigned address of the first device may be a static address, a dynamic address and/or an embedded device address such as a MAC address. The identifier of the first device may be a digital certificate and/or a serial number.
    Type: Application
    Filed: September 30, 2003
    Publication date: June 17, 2004
    Inventors: Jeyhan Karaoguz, James Bennett
  • Patent number: 6691202
    Abstract: A method for communicating from a source port (i) to a destination port (j) is employed within a switching system that has m ports, each of the ports being coupled to a local area network via a Hub. The connectivity between the inputs and outputs of the m ports forms a matrix of cross points having m rows and m columns. Each port has a transmit line coupled to a row of the matrix and a receive line coupled to a column of the matrix. A transmission operation from the source port (i) to the destination port (j) involves a first control circuit for unilaterally connecting the port (i) to the port (j), a second control circuit for unilaterally connecting the port (j) to the port (i). The method includes the use of a third control circuit, and a column control bus that couples the third control circuit to a plurality of control circuits including the second control circuit.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: February 10, 2004
    Assignee: Lucent Technologies Inc.
    Inventors: Silverio C. Vasquez, Jaan Raamot
  • Patent number: 6681282
    Abstract: A control system using microprocessors for communicating through a LAN to control operation of processors and input and output subsystems (IO system) of a multi-processor computer system. Each processor includes memory, and an IO system comprising a plurality of busses. The processors are cabled together in a mesh arrangement so that messages can be transferred between any of the processors and delivered to memory associated with the destination processor, or an IO system associated with the destination processor, etc. The processors and IO system are mounted in a rack, and an IO system is associated with each processor. A rack may be hot swapped. In hot swapping, the microprocessor control system computes new routing tables for messages through the new cabling arrangement. Microprocessors, IO devices, and processor boards may be hot swapped.
    Type: Grant
    Filed: August 31, 2000
    Date of Patent: January 20, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: David Golden, Darrel Donaldson
  • Publication number: 20030233660
    Abstract: Devices and methods are disclosed for establishing device interaction among electronic devices of an environment. The device has a transmitter, receiver, memory storing interaction rules and a processor for implementing the interaction rules in association with the transmitter, receiver, and other devices of the environment. The device also includes components for performing the device specific functions and a state sensor for determining the logical or physical state of the device. The methods involve detecting a change of state at a device and then communicating in accordance with the interaction rules thereafter. The communication may involve broadcasting change of state messages to the environment, directing change of state messages to specific devices, and directing requests and/or directing replies to requests. Through device interaction, changes of state may automatically occur at one device in response to a change of state at another in order to reduce the burden on the user.
    Type: Application
    Filed: June 18, 2002
    Publication date: December 18, 2003
    Applicant: BellSouth Intellectual Property Corporation
    Inventors: John B. Slemmer, Stefan Olsson, Barrett Kreiner, Andre Jarboe, Kevin Kleinfelter
  • Patent number: 6654846
    Abstract: A high speed data bus for use within a computer system includes a plurality of interface units distributed along a bi-directional transmission medium. Each of the interface units is used to couple at least one functional unit within the computer system to the bi-directional medium. The data bus uses a non-baseband signaling scheme on the bi-directional medium to transfer data between functional units within the computer system. In one embodiment, differential small signal signaling technology is used to enable low voltage operation, power supply noise rejection, and robustness against self-inflicted jitter on the bus. The high speed data bus is preferably configured as a series of point to point communication links between adjacent interface units.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: November 25, 2003
    Assignee: Intel Corporation
    Inventor: Luiz M. Franca-Neto
  • Patent number: 6633757
    Abstract: Scheme and apparatus (10) for distinguishing services offered by a service-providing device in adjacency of the apparatus (10) from services offered by a service-providing device not being in the apparatus' adjacency. All devices—including the apparatus—are part of a wireless local network. The apparatus (10) maintains a record with information about services and associated identifiers as well as a list of identifiers about the service-providing devices. The associated identifiers and the list of identifiers are compared to determine an associated service as being in adjacency of the apparatus if it is rendered by a service-providing device being listed in the list of identifiers. An associated service is determined as not being in adjacency of the apparatus if it is rendered by a service-providing device not being listed in the list of identifiers.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: October 14, 2003
    Assignee: International Business Machines Corp.
    Inventors: Reto Hermann, Dirk Husemann, Michael Moser, Michael Nidd, Andreas Schade
  • Publication number: 20030169732
    Abstract: Telephony call control functionality is divided into a set of components. Each component provides a specific portion of the call control. The components communicate with each other via a unique telephony protocol. The unique telephony protocol is defined as a set of events. A component sends/receives events to other components that are involvement in a call. Sets of components are located together on telephony servers. Because communication between components is via a protocol, the components may be located on many different servers.
    Type: Application
    Filed: April 2, 2003
    Publication date: September 11, 2003
    Inventor: Stephen P. Bakke
  • Patent number: 6603220
    Abstract: A terminal includes a local power supply, which can be backed up by a remote power feed, and an identification module connected to at least two conductors of a link. The module enables remote detection that the terminal can receive a remote power feed. The terminal further includes a circuit for drawing a predetermined remote power feed current and which is activated when the local power supply is working normally and disabled if the local power supply is not working normally and if the remote power feed is not applied to the link. Applications include telephone terminals using the Internet protocol.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: August 5, 2003
    Assignee: Alcatel
    Inventor: GĂ©rard Vergnaud
  • Publication number: 20030135859
    Abstract: According to one embodiment, a method is described. The method includes receiving a request at a control module from a first remote device to access media data from a storage management module and determining that a first user is requesting access to the data based upon a first remote identification (ID). The method further includes opening a second stream between the playback module and the storage management module and receiving the data at the playback module.
    Type: Application
    Filed: July 19, 2001
    Publication date: July 17, 2003
    Inventors: Daniel Putterman, Brad Dietrich, David Williams, Jeremy Toeman, Michael Shiloh, Keith Craigie, John Doornbos, Paul Novaes, Song Huang, Terry Barsoom, Pedro Freitas
  • Patent number: 6580985
    Abstract: A vehicle audio adapter which is used in a vehicle multivision system in which electronic apparatuses including an audio, television, car navigation, air condition control, picture monitor and switch panel are connected by a LAN cable to be constructed into a room LAN so that the electronic apparatuses are intensively controlled by a single monitor. When a predetermined one of the electronic apparatuses connected by the room LAN cable is replaced with a non-genuine apparatus which cannot be connected by the room LAN cable and is unsuitable for the room LAN, functions of the room LAN are maintained with the genuine apparatus being left and the genuine apparatus is replaceable with the non-genuine apparatus.
    Type: Grant
    Filed: February 8, 2002
    Date of Patent: June 17, 2003
    Assignee: Beat-Sonic Co., Ltd.
    Inventors: Tsutomu Totani, Yasuo Serikawa
  • Publication number: 20030104810
    Abstract: Telecommunication system for bidirectional transmission of data and voice signals with a data network (2), which is connected via a satellite data transmission link (6, 5, 8) for bidirectional data signal transmission to at least one satellite device (7), which is connected to a 10 Base S switching device (14); a telephone network (25), which is connected via a number of subscriber telephone lines (23) for bidirectional voice signal transmission to the 10 Base S switching device (14); and with a number of 10 Base S subscriber modems (18), which are connected for bidirectional voice and data signal transmission to the 10 Base S switching device (14).
    Type: Application
    Filed: August 14, 2002
    Publication date: June 5, 2003
    Inventors: Matthias Kindler, Shimon Peleg
  • Publication number: 20030101459
    Abstract: The present invention utilizes a gateway providing an open software interface to control in-home communications and to enable in-home devices of various divergent technologies to selectively access external communication features. An in-home communication network utilizes any one or more of several available in-home digital networking media to connect the gateway to device interfaces. The gateway comprises interfaces to a plurality of external communication networks, and one or more in-home communication media, a router coupled to the various interfaces and a controller. Each device specific accessing the in-home network connects to media through a device interface. There will be different interfaces for enabling access by different types of customer premises devices. Each device interface provides physical access to the media as well as functional interfacing, to enable operation with the particular type of customer premises device.
    Type: Application
    Filed: January 9, 2003
    Publication date: May 29, 2003
    Applicant: UCENTRIC HOLDINGS, LLC
    Inventor: Richard Edson
  • Publication number: 20030009760
    Abstract: The invention allows easier determination of a cooperative operation for devices connected to a LAN (50). A control unit (11) in an information processing device (10) connected to the LAN provides to a display, in accordance with selection of devices (10, 20, 30, 40) by a user, data representative of cooperative operations executable by using the selected devices. The control unit provides, to the display, data representative of cooperative operations executed in the past and recorded in a memory (12). The control unit provides to the selected devices, via the LAN, a necessary command to execute one of the executable cooperative operations that is selected by the user. The control unit provides, to the display, data representative of a device which is connected to the LAN and substitutable for a necessary device.
    Type: Application
    Filed: October 19, 2001
    Publication date: January 9, 2003
    Applicant: FUJITSU LIMITED
    Inventors: Takuya Sakamoto, Toshihiro Sonoda, Naoki Nishiguchi
  • Publication number: 20030005450
    Abstract: A communication method and system are provided which enables the communication of data and television signals on a residential gateway network while avoiding the degradation of VDSL signals. This invention employs a new directional coupler that permits coupling between input and output ports, but only limited coupling to a television port.
    Type: Application
    Filed: July 1, 2001
    Publication date: January 2, 2003
    Inventor: Gordon Smith
  • Patent number: 6484029
    Abstract: A method and apparatus for automatically adapting a mobile unit to the communications requirements of a particular country or geographic region is provided. A wireless data communication network located in a particular country or geographic region includes one or more access points for communicating with the mobile unit. The mobile unit receives from an access point an announcement message broadcast. The message has a unique frequency characteristic associated with the geographic location of the access point from which it was broadcast. The mobile unit then determines an allowable frequency set for use in the country or geographic location associated with the access point. The mobile unit adjusts its frequency set to operate o the allowable frequency set. The mobile unit may also adjust others of its operating parameters in a similar fashion.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: November 19, 2002
    Assignee: Symbol Technologies, Inc.
    Inventors: John K Hughes, Gurpreet Singh
  • Patent number: 6434226
    Abstract: 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: Grant
    Filed: August 12, 1997
    Date of Patent: August 13, 2002
    Assignee: Fujitsu Limited
    Inventor: Satoshi Takahashi
  • Publication number: 20020036989
    Abstract: A method and apparatus are presented for messaging within a plurality of nodes 100, wherein each node 100 includes a processor 208, a memory 210 connected with the processor 208, and a directional communication interface 204 connected with the processor 208. The nodes 100 are operative for receiving a message including an address code with a relative target address of an intended recipient node 106; for processing the address code to determine if the current node 100 is the intended recipient node 106; for modifying the message based on the direction from which the message was received and is to be transmitted; and for re-transmitting the message including a modified address code. The nodes 100 each repeat these actions to propagate a message along multiple paths until the message reaches a desired recipient, thereby providing path redundancy without the need for the use of unique node 100 identities or locations.
    Type: Application
    Filed: September 27, 2001
    Publication date: March 28, 2002
    Inventor: David W. Payton
  • Patent number: 6351526
    Abstract: A system and a method for communicating dialed digits between a communication device and a call processor during call setup include transmitting at least the first digit of a telephone number from the communication device to the call processor within a first data packet. The call processor references a dialing plan to determine if the first data packet provides sufficient digits to complete the requested call. If not, the call processor determines the minimum quantity of digits required under the dialing plan to determine the destination of the call and transmits a protocol command to the communication device to transmit the minimum quantity of digits to the call processor within a subsequent data packet. The call processor continues to reference the dialing plan to determine whether additional digits are required and to request additional packets until sufficient packets have been received to establish the call.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: February 26, 2002
    Assignee: Siemens Information and Communication Networks Inc.
    Inventors: Shmuel Shaffer, William J. Beyda
  • Publication number: 20010014585
    Abstract: This invention provides a vehicle compartment radio LAN system for communicating with a terminal installed in a vehicle compartment through a repeater, wherein a repeater is provided in front of each seat row. Thus, a terminal installed in a front seat communicates by radio through a repeater, a terminal installed in a second seat communicates by radio through another repeater and a terminal installed in a third seat communicates by radio through still another repeater.
    Type: Application
    Filed: February 12, 2001
    Publication date: August 16, 2001
    Applicant: YAZAKI CORPORATION
    Inventor: Yoshinori Nakatsugawa
  • Patent number: 6065073
    Abstract: A system and method for auto-polling a status register within a physical layer (PHY) interface to a local area network (LAN). The system includes a host CPU which needs to detect and service interrupts generated by a PHY device on the LAN which is coupled between a first transmission medium (such as copper or fiber cable) and a management interface to the system. The system further includes an auto-polling unit which monitors activity on the management interface of the PHY device. When the auto-polling unit detects a lack of activity on the management interface of the PHY for a predetermined interval, the auto-polling unit reads a first value from the PHY status register. This first status value is then compared to a previously stored value which corresponds to the last PHY status value read by the host CPU. If a mismatch is detected between these two values, an interrupt is generated to the CPU.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: May 16, 2000
    Assignee: Jato Technologies, Inc.
    Inventor: Bradley J. Booth
  • Patent number: 6038608
    Abstract: By providing a plurality of virtual LAN's such that ports communicating according to one protocol are grouped and communication is performed between the ports in the group, a communication is possible according to a plurality of protocols and it is possible to enter into other virtual LAN's than a virtual LAN to which a connection is made.
    Type: Grant
    Filed: November 25, 1997
    Date of Patent: March 14, 2000
    Assignee: NEC Corporation
    Inventor: Kenichi Katsumata
  • Patent number: 5696899
    Abstract: Method and apparatus by which an interactive network board can determine which of plural frame packet types is currently being used for LAN communication on a local area network. A prescanning software module simultaneously binds itself through a link support layer to each of the plural frame packet types and then deactivates itself. The LAN communication network is then monitored for broadcast traffic so as to capture a LAN frame packet, whereupon the link support layer provides data groups for the captured frame packet, each of the data groups corresponding to a different one of the plural frame packet types. The prescanner is reactivated so as to prescan each data group for a predetermined IPX header, and determines the frame packet type in correspondence to the data group having the predetermined IPX header.
    Type: Grant
    Filed: November 18, 1992
    Date of Patent: December 9, 1997
    Assignee: Canon Kabushiki Kaisha
    Inventor: George A. Kalwitz