Using A Dedicated Signaling Channel (i.e., D-channel) Patents (Class 370/524)
  • Patent number: 6519267
    Abstract: The currently defined industry standard framing structure for 2B1Q ISDN signaling, at 160 kilobaud, provides 128 kbps for a customer (B1, B2) data channel, and 16 kbps for a data (D) channel. Of the remaining 16 kbps non payload bandwidth, 4 kbps are used for overhead maintenance data. Eight kbps of the remaining 12 kbps of non payload bandwidth, that customarily transport a repeated framing pattern, are usurped for the transport of an auxiliary compressed (from 64 KHz to 8 KHz) digitized voice POTS channel, that is sufficient to transport toll quality voice. The remaining framing pattern bandwidth is adequate prevent an unacceptable reduction in bit error rate.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 11, 2003
    Assignee: Adtran, Inc.
    Inventors: Michael Scott Sansom, Timothy D. Rochell
  • Publication number: 20030007482
    Abstract: The present invention provides an efficient way of resolving telephone numbers and other entity/device identifiers into Internet addresses as well as accommodating portability of those telephone numbers and other entity/device identifiers without having to substantially modify or rework the domain naming system (DNS) infrastructure or established number portability schemes. Self-contained, additional functionality is implemented on a DNS server which allows smooth IP address resolution of telephone numbers or other entity/device identifiers by taking advantage of existing portability databases without impacting the existing networks that create and maintain such portability databases.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 9, 2003
    Inventors: Robert Khello, Miguel Cobo, Victor Ferraro-Esparza, Antun Samukic
  • Patent number: 6504874
    Abstract: An arrangement is provided for digital transmission of information via lines between a line termination (1) of a telecommunication network and subscribers (Tln) connected to the line termination. At least one terminal of a subscriber (Tln) is connected to a network termination (2) via an electric line (L3). The network termination (2) is connected to the line termination (1) via a line (L2) having metallic conductors. The line termination (1) has a voltage source (SV) for supplying power to itself and to the network termination (2) and the subscriber (Tln) terminals. For increased reliability during operation, two separate power supply units (SVE1, SVE2) are arranged in the network termination (2). One of the two separate power supply units (SVE1, SVE2) powers active components of the network termination (2) and the other of the two separate power supply units (SVE1, SVE2) powers the subscriber (Tln) terminals.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: January 7, 2003
    Assignee: Alcatel
    Inventors: Andreas Timmermann, Jürgen Schröder
  • Patent number: 6501759
    Abstract: The invention is a system for providing virtual connections through an ATM interworking multiplexer on a call-by-call basis. A signaling processor receives signaling for a call and selects the virtual connection for the call. The signaling processor generates control messages that identify the selection and transfers the control messages to the ATM interworking multiplexer that accepted the access connection for the call. The multiplexer converts user information from the access connection into ATM cells for transmission over the virtual connection in accord with the control messages.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: December 31, 2002
    Assignee: Sprint Communications Company L.P.
    Inventors: Joseph Michael Christie, Michael Joseph Gardner, Albert Daniel DuRee, William Lyle Wiley
  • Patent number: 6501738
    Abstract: The invention supposes the use of an integrated services digital network (102) which has a function of communicating the number of a source communications terminal (101) as source number information. A source number information identifying section (104) in a central unit 103 identifies source number information from the integrated services digital network (102). Communications processing sections (105) in the central unit (103) process arriving channels for which source number information is recognized as being identical, as arriving channels from the same communications terminal. As a result, the central unit (103) identifies arriving channels from a plurality of communications terminals (101) individually and then processes them without communicating source number information with the communications terminals.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: December 31, 2002
    Assignee: Fujitsu Limited
    Inventor: Tomohiko Awazu
  • Patent number: 6496504
    Abstract: A method and apparatus in a computer network system form a setup message at a source terminal. The setup message includes a bandwidth coordination message that identifies respective subchannel data rates to be used when sending data to respective destination terminals. The setup message identifies respective data rates and associated destination terminals, and the setup message is sent to a switch facility, that interconnects the source terminal and the respective destination terminals. The switch extracts the bandwidth coordination message and establishes subchannel links, such as subchannels of one or two ISDN B channels. Once the respective links are established, the source terminal transmits a message via the switch to the respective destination terminals at the data rates corresponding with the subchannel data rates established by the switch facility, and as requested by the source terminal.
    Type: Grant
    Filed: August 6, 1998
    Date of Patent: December 17, 2002
    Assignee: Ricoh Company, Ltd.
    Inventor: Naeem Iqbal Malik
  • Patent number: 6496521
    Abstract: In order to obtain further instruction from connected ISDN terminals, a service resource function is provided. The function is responsive to data carried over a separate data network to provide a prompt and collect service to a user of ISDN. The invention allows the addition of prompt and collect services such as account allocation to be provided.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: December 17, 2002
    Assignee: British Telecommunications public limited company
    Inventors: Steven S Dougall, Michael G Foxton, Jonathan Hopkins
  • Publication number: 20020186723
    Abstract: A normalizing signaling gateway (NSG) routing node receives a first signaling message formatted according to a first variant of a common or standard signaling protocol, such as ISUP, and creates a second signaling message based on the first message. The second signaling message includes a normalized component and a variant component. The second signaling message may then be routed to a second NSG routing node or to a media gateway controller. Because the NSG routing node converts messages to and from variants of a standard signaling protocol, the media gateway controller is not required to support all of the variants of the standard signaling protocol, and its complexity is reduced.
    Type: Application
    Filed: June 5, 2002
    Publication date: December 12, 2002
    Inventors: David Michael Sprague, Mark Edward Kanode, Dan Alan Brendes, Mark Ernest Davidson
  • Patent number: 6493336
    Abstract: The present invention provides a method and apparatus used in an AO/DI networking service that automatically changes thresholds that increase or decrease bandwidth to cause a corresponding change in the rate of data transfer capacity. The AO/DI networking service uses apparatus that comprises a circuit switched network having an end office with a network management center that monitors the circuit switched network. A computer and a packet switched network are connected to the circuit switched network. An ISP connected to the packet switched network and the end office is used for determining the status of telephone circuits in the circuit switched network serving both the computer and the ISP. Once this status is determined, the AO/DI automatically changes thresholds for increasing and decreasing bandwidth thereby effecting a corresponding change in the rate of data transfer capacity for an AO/DI subscriber.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: December 10, 2002
    Assignee: Nortel Networks Limited
    Inventors: Mark J. Perry, Patrick J. Dagert
  • Publication number: 20020176403
    Abstract: A system and a method for a voice gateway to deliver voice over Internet Protocol (VoIP) via an electronic network for digital data signals comprising IP packets. The system and method operate by transferring and converting voice streams from a Public Switched Telephone Network (PSTN) into IP packets for delivery to a customer premises inter-working (CP-IWF) device via a data port, which is interfaced to customer premises equipment (CPE), wherein the CP-IWF device serves as a gateway between the digital data signals used in the electronic network and the PSTN voice streams. The system includes an access gateway, including a V5.x device for interfacing the electronic network to the PSTN. The system also includes a voice gateway to deliver voice over Internet protocol (VoIP) and a Call Agent to keep track of the calling state between said CP-IWF device and said voice gateway, such that the voice streams are converted from the PSDN/Integrated Services Digital Network (ISDN) into IP packets.
    Type: Application
    Filed: March 20, 2002
    Publication date: November 28, 2002
    Inventor: Eytan Radian
  • Patent number: 6487184
    Abstract: A radiotelephone device receiving network information, transmitted along a radio channel, from a network includes an acknowledgement coordination module determining a mode for exchange of acknowledgement information with the network. The radiotelephone device transmits the acknowledgement information to the network through a main dedicated control channel, using a defined service access point identifier corresponding to transmission of the acknowledgement information through the main dedicated control channel, in response to the mode for exchange of acknowledgement information being the main dedicated control channel. The radiotelephone device transmits the acknowledgement information to the network using a temporary block flow acknowledgement interchange in response to the mode for exchange of acknowledgement information being other than the main dedicated control channel.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: November 26, 2002
    Assignee: Motorola, Inc.
    Inventors: Mark E. Pecen, Niels Peter Skov Andersen, Marcia Otting
  • Patent number: 6480493
    Abstract: The invention includes a system for processing telecommunications signaling. Signaling for a call is received into a signaling processor. The signaling processor processes the call and generates new signaling incorporating the processing. The new signaling is transferred to network elements as appropriate. The signaling processor is not coupled to a switch matrix and only communicates with the network elements over signaling links.
    Type: Grant
    Filed: March 25, 1999
    Date of Patent: November 12, 2002
    Assignee: Sprint Communications Company L.P.
    Inventors: Joseph Michael Christie, Bobby Chand Bahl, Albert Daniel Duree, Michael Joseph Gardner, Daniel Charles Sbisa, William Lyle Wiley
  • Patent number: 6470019
    Abstract: The invention comprises a telecommunications signaling processor that processes signaling system #7 telecommunications signaling messages to select asynchronous transfer mode virtual connections and to provide control messages indicating the selected virtual connections. The telecommunications signaling processor also processes non-call associated signaling messages for call maintenance.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: October 22, 2002
    Assignee: Sprint Communications Company L.P.
    Inventor: Royal Dean Howell
  • Patent number: 6470010
    Abstract: The objective of the invention is a system, comprising an ISDN-network, having access through the intelligent network service switching point (SSP) to the services offered by the intelligent network service control point (SCP), a data network, in which at least one computer has a data network-address, and a gateway connecting the networks. The call can be connected to a telephone integrated to the computer, so that the data network-address used by the subscriber's computer and the subscriber's personal identifier are at first transferred to the gateway, which codes the data network-address. Thereafter the coded address, the gateway address and the subscriber's personal identifier are transmitted to the intelligent network and recorded in the database of the Service Data Point (SDP). The intelligent network has now the required data to create the speech connection between the mentioned subscriber and another subscriber.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: October 22, 2002
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Balazs Szviatovszki, Matti Kaakkola, Harri Koponen, Björn Melen, Ossi V{umlaut over (aa)}nänen
  • Patent number: 6463077
    Abstract: A PHS data communication terminal adapter which can perform data communication with a data communication terminal on the side of a PHS (Personal Handy-phone System) via a digital network by executing protocol conversion and switching the data transmission bit rate between a high data transmission bit rate (64 kbps) and a low data transmission bit rate(32 kbps) is provided, without needing large signal processing scale and device scale of the PHS data communication terminal adapter, and without deteriorating data communication efficiency. In the PHS data communication terminal adapter, B-channel transmission data composed of 8 bits which have been sent from the data communication terminal on the side of the PHS is received by an S reference point interface section, and the rear 4 bits of the 8-bit B-channel transmission data are separated by a rear part separation section, and the number of “1”s in the rear 4 bits is counted by a rear part counter section.
    Type: Grant
    Filed: October 20, 1998
    Date of Patent: October 8, 2002
    Assignee: NEC Corp.
    Inventor: Tsuyoshi Sato
  • Patent number: 6452951
    Abstract: A time slot interchanger (10) includes a D-channel processing device (30). The D-channel processing device (30) includes a main memory (32), a D-channel memory (34), and a D-channel assembler (36). The main memory (32) receives telephony data and signaling traffic from a subscriber in the form of integrated services digital network signals. Two-bit D-channel signaling portions of each integrated services digital network signals are extracted and placed into the D-channel memory (34). The D-channel assembler (36) assembles the two-bit D-channel signaling portions into eight-bit digital signal level zero (DS0) signals. The eight-bit DS0 signals are stored in the D-channel memory (34) for subsequent transfer with selected telephony data traffic from the main memory (32) over a synchronous optical network link.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: September 17, 2002
    Assignee: Alcatel USA Sourcing, L.P.
    Inventors: Phu Son Le, Ajaib S. Bhadare, Lac X. Trinh
  • Patent number: 6453036
    Abstract: Information stored within an SS7 signaling network is inserted within fields of an ISUP signaling message that are not dedicated to another use and the signaling message is sent to a service control point (SCP) within the SS7 network. At the SCP, information is extracted from the ISUP signaling message and existing databases are modified to reflect the addition of the extracted information.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: September 17, 2002
    Assignee: Z-Tel Technologies, Inc.
    Inventor: Julio Gonzales
  • Patent number: 6445698
    Abstract: A two wire DDS Transport System is disclosed wherein digital signals are transported over a single channel between transmission line elements transporting digital data between a Network Service Provider and a Customer's Premises. ISDN U-Interface Transceivers having scaled operating frequencies and data buffers are provided in the transmission line elements, such as an Office Channel Unit (OCU) and a Network Interface Unit (NIU) to increase operating distance.
    Type: Grant
    Filed: September 8, 1998
    Date of Patent: September 3, 2002
    Assignee: HyperEdge Corporation
    Inventors: Sean Iwasaki, Carl Erite
  • Patent number: 6438112
    Abstract: The information coding device has: a first labeling means adapted to associate, with the information to be coded, K “initial” first degree polynomials, a coding means which performs a polynomial calculation: to form K “coded” sequences of P, greater than or equal to K, “coded” polynomials, the first being equal to one of the K initial polynomials and the others to the product of the preceding polynomial and a predetermined polynomial, and to form a “resultant” sequence of P “resultant” polynomials respectively equal to the sums of the coded polynomials of same rank of the K coded sequences, a second one-to-one labeling means adapted to label the points of a quadrature amplitude modulation signal constellation with the Q2 resultant polynomials, for two adjacent points of the constellation, the polynomials labeling them have one identical coefficient and the other coefficient differing only by 1 modulo Q, and a modulator for quadrature amplitude
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: August 20, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventors: Philippe Piret, Claude Le Dantec
  • Publication number: 20020110156
    Abstract: A subscriber unit for wireless digital communications which supports all types of voice and data communications while utilizing the minimum amount of bandwidth for the particular application. The subscriber unit efficiently allocates bandwidth on demand. The subscriber unit establishes a channel and generates the necessary spreading codes to support the highest capacity channel desired. Portions of the communication spectrum bandwidth are not reserved until actually required. Since the call setup is performed at the beginning of a call from that subscriber unit, including the assignment of spreading codes, a subscriber unit can quickly gain access to the portion of the spectrum that is required to support the particular application.
    Type: Application
    Filed: February 22, 2002
    Publication date: August 15, 2002
    Applicant: InterDigital Technology Corporation
    Inventor: Fatih M. Ozluturk
  • Publication number: 20020110181
    Abstract: In one disclosed embodiment, data information is stored in a buffer in a transmitter. The data information is transmitted on a shared channel and control information for recovering the associated data information is transmitted on a dedicated channel. The shared and dedicated channels can be, for example, different portions of the frequency band. The control information can include a spreading factor used to spread the data at the transmitter. For example, the spreading factor can be the length of the Walsh function orthogonal coding used to spread the data. The control information is received over the dedicated channel before the associated data information is received over the shared channel. The control information is then used to recover the associated data information. For example, knowing the spreading factor from the control information, the correct Walsh function can be selected to de-spread, i.e. to Walsh de-cover, the data information.
    Type: Application
    Filed: December 22, 2000
    Publication date: August 15, 2002
    Inventor: Serge Willenegger
  • Patent number: 6426963
    Abstract: A technique for configuring a network interface circuit, capable of being commonly used in all countries or networks which have different ISDN protocols, with only one BRI trunk includes the steps of: first storing beforehand in a read only memory (ROM) of the network interface circuit all function programs for supporting an integrated services digital network protocol for each country and network which will be used by the keyphone system, selecting a function program from among the function programs stored in the ROM corresponding the country and kind of network to be operated upon initialization, and setting the selected program, as the function program to be executed.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: July 30, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jong-Il Kim
  • Publication number: 20020097752
    Abstract: A communications system includes N parallel communications channels connecting first and second devices. The N channels may include N-1 channels for carrying information symbols, and an Nth channel for facilitating deskewing and word framing. The first device may include an alignment symbol generator for generating alignment symbols on the Nth channel, and a word framing code generator for generating word framing codes on the Nth channel. The second device may include a deskewer for aligning received information symbols based upon the alignment symbols, and a word framer for determining word framing based upon the word framing codes. The word frame code generator in the first device or transmitter, and the word framer in the second device or receiver provide the desired feature of knowledge of where each word starts or begins. The start of each word may be determined in terms of a time and a corresponding one of the N-1 channels where the word starts.
    Type: Application
    Filed: January 19, 2001
    Publication date: July 25, 2002
    Applicant: LUCENT TECHNOLOGIES INC.
    Inventors: Nevin R. Jones, Himanshu Mahendra Thaker, Charles Albert Webb, Lesley Jen-Yuan Wu
  • Publication number: 20020090010
    Abstract: The object of the invention is to provide a cost-effective alternative for the extending of the degree of local freedom in the use of in-house terminal devices. In the method according to the invention, for the purpose of transmitting telecommunications signals, telecommunications signals received from the telecommunications network (1) of the network operator are forwarded via the local, in-house power supply network (5) of the end customer. The local, in-house power supply network (5) of the end customer includes a facility (7) for generating a connection between the telecommunications network (1) of the network operator and the in-house power supply network (5) of the end customer for the purpose of rendering possible the transmission of telecommunications signals via the in-house power supply network (5) of the end customer.
    Type: Application
    Filed: December 21, 2001
    Publication date: July 11, 2002
    Applicant: ALCATEL
    Inventor: Rainer Bader
  • Publication number: 20020080826
    Abstract: In the case of information offered from the Internet such as, for example, moving images, large quantities of data have to be transmitted, requiring a large amount of bandwidth. This problem is solved, in that, in the transmission of large quantities of data, the Internet is excluded as a transmission path and the information is transmitted directly via the ISDN from the provider to the user, via a viewpoint, and the transmission quality is thus improved through combining what are to some extent inherently competing services, such as ISDN and Internet.
    Type: Application
    Filed: December 4, 2001
    Publication date: June 27, 2002
    Applicant: ALCATEL
    Inventor: Jurgen Flehinghaus
  • Patent number: 6411624
    Abstract: The invention comprises a telecommunications signaling processor that processes Signaling System #7 (SS7) telecommunications signaling messages to select Asynchronous Transfer Mode (ATM) virtual connections and provide control messages indicating the selected ATM virtual connections.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: June 25, 2002
    Assignee: Sprint Communications Company L.P.
    Inventors: Joseph Michael Christie, William Lyle Wiley, Royal Dean Howell
  • Patent number: 6407992
    Abstract: A method of multiplexing multiple terminals in a distributed network includes transporting user traffic and telephony signaling information. Transporting user traffic includes converting the user traffic into ATM cells, passing the ATM cells over a wireless link to a TDM port in an ATM multiplexer wherein the ATM multiplexer includes an ATM circuit emulation service, and converting the ATM cells into user traffic. Transporting telephony signaling information includes extracting the telephony signaling information from a user interface, passing the telephony signaling information to a base station using an ATM virtual circuit, processing and aggregating a number of telephony signaling information into a single channel, and transmitting the single channel to the ATM multiplexer.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: June 18, 2002
    Assignee: Netro Corporation
    Inventors: Eliezer Pasternak, Itai Aaronson, Gideon Ben-Efraim
  • Publication number: 20020067727
    Abstract: An illustrative intelligent network and method for providing voice telephony over ATM are provided that can provide significant advantages. The intelligent network includes a multi-service control point, an ATM signaling intercept processor, and a service administration. The multi-service control point receive an input extracted from an input ATM setup message that includes a called party phone number value and a VToA designator, and generates an output in response for use in generating an output ATM setup message. The ATM signaling intercept processor intercepts the input ATM setup message from an ingress ATM edge switch of the ATM network, extracts the input from the input ATM setup message, communicates the input to the multi-service control point, receives the output generated by the multi-service control point, generates the output ATM setup message using the output, and communicates the output ATM setup message to the ingress ATM edge switch of the ATM network.
    Type: Application
    Filed: January 22, 2001
    Publication date: June 6, 2002
    Inventors: John K. Gallant, Thomas Glenn Hall, Robert Henry Barnhouse
  • Patent number: 6400708
    Abstract: A number of proposals have been developed to provide data communications over two-wire copper circuits at rates equivalent to a number of combined ISDN B-channels. For example, for an ISDN rate digital subscriber line (IDSL), the circuit between the network termination at the customer premises and the channel bank carries data on two combined B-channels. An IDSL circuit cannot carry voice communications. Some such services carry the lower rate signaling D-channel only on the subscriber line circuit. Normal ISDN services carry voice services on one of the two B-channels, limiting data communications to the other B-channel. Normal ISDN services do carry the lower rate D-channel through the network, but this channel is used only for call set-up signaling, low speed data communications and the like. The invention uses two or more B-channels on the DSL circuit for data communications and transports voice telephone communications on the low speed signaling D-channel.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: June 4, 2002
    Assignee: Verizon Services Corp.
    Inventors: Dale L. Bartholomew, Robert D. Farris, Raymond I. Millet, David D. Hunter
  • Patent number: 6400701
    Abstract: A radio base station in a Fixed Wireless Access System broadcasts downlink data packets, each packet being transmitted on a single logical channel. A plurality of network subscribers in a sector may be members of a user group, each user group configured to receive and transmit packets transferred on a specific single logical channel only. Packets include a destination address which specifies a member of the user group. The packets include a token which specifies which user group member may transmit uplink data to the base station on the next frame. Logical channels are yielded for use by circuit switched traffic when required.
    Type: Grant
    Filed: March 31, 1998
    Date of Patent: June 4, 2002
    Assignee: Nortel Networks Limited
    Inventors: Jie Lin, Richard John Driscoll
  • Patent number: 6393022
    Abstract: A method and apparatus are provided for processing Integrated Services Digital Network User Part (ISUP) signaling within a switching system. ISUP signaling messages associated with a plurality of ISL trunks are processed within a switching system by provisioning the ISL trunks, identifying the ISUP signaling messages that are associated with the ISL trunks, and routing the identified ISUP signaling messages within the switching system to the far endpoints of the trunks using layers 1, 2, and 3 of Open System Interconnection (OSI) protocol.
    Type: Grant
    Filed: November 19, 1997
    Date of Patent: May 21, 2002
    Assignee: Nortel Networks Limited
    Inventors: Jeffrey Allen Hewett, Keven Todd Chapman
  • Patent number: 6389042
    Abstract: To obtain further instruction form connected ISDN terminals a service resource function is provided. The function is responsive to data carried in ISDN data channels to provide prompt and collect service to users of ISDN. This allows the addition of prompt and collect services such as account allocation to be provided.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: May 14, 2002
    Assignee: British Telecommunications public limited company
    Inventors: Steven Singh Dougall, Michael Gordon Foxton, Jonathan Hopkins
  • Patent number: 6385206
    Abstract: In a communication network of the present invention, there are arranged a plurality of groups of nodes, a plurality of exchange nodes, a plurality of first transmission lines connecting the node groups with respective ones of the exchange nodes, and at least a second transmission line for connecting the exchange nodes with each other. The nodes are connected with each other through at least one of the exchange nodes by multiplexed communication channels for transmission of a data signal established in the first and second transmission lines, and the nodes are connected with the exchange nodes by the multiplexed communication channels and at least one control channel for transmission of a control signal.
    Type: Grant
    Filed: July 2, 1996
    Date of Patent: May 7, 2002
    Assignee: Canon Kabushiki Kaisha
    Inventor: Toru Nakata
  • Publication number: 20020051426
    Abstract: The invention relates to Common Channel Signalling systems, such as SS7. For improving configuration of a new point code connected to a SS7 network through a MTP level 3 aligned link, the invention suggests listening to point code status messages originating from distant point codes and forwarded on said link. When a message originating from an unknown distant point code is received, the table of distant point codes is updated with the point code number of the distant point code; at the same time, a primary route to the new distant point code through the link may be created. The invention makes it possible to configure and test a new point code within an existing SS7 network, without having to re-enter the full network architecture.
    Type: Application
    Filed: January 8, 2001
    Publication date: May 2, 2002
    Inventors: Pierre Sauvage, Eric Julien
  • Patent number: 6381246
    Abstract: A telecommunication system and method of signalling are disclosed which enable service providers to integrate broadband network capability into their existing narrow band networks while being substantially transparent to existing narrow band signalling infrastructures such as the Common Channel Signalling System Number 7 (CCS7), currently in use. Significant advantages are realized through such a network system. Service providers, for example incumbent local exchange carriers (ILECs) now have access to BB connectivity while retaining the use of their extensive CCS7 signalling networks and Advanced Intelligent Network (AIN) resources. Investment in the CCS7 signalling infrastructure is hence not lost and the proven robustness and reliability of these networks is retained. Service providers can continue to take advantage of Intelligent Network capabilities in providing a large variety of voice services, but also to make available some of the current service features for future BB services.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: April 30, 2002
    Assignee: Nortel Networks Limited
    Inventors: Cristian Constantinof, Klaas Van Weringh
  • Publication number: 20020048276
    Abstract: The invention relates to changing the characteristics of a signalling link in a communications system comprising at least two signalling points (A. . . D) and at least one signalling link through which signalling information is transmitted from a signalling point to an adjacent signalling point. In the method, the signalling traffic to be relayed is monitored at a signalling point and a modification procedure intended for modifying user connections is performed, in which a modification request message including an identifier value for identifying the object of modification is sent to an adjacent signalling point.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 25, 2002
    Inventors: Risto Kauppinen, Jari Skog
  • Patent number: 6377589
    Abstract: A communications system includes a telecommunications link (3) between a remote terminal (CPa-c) (such as a burglar alarm control panel) and a control station (1). Polling requests are transmitted on a digital messaging channel which is carried by the telecommunications link. The remote terminal (CPa-c) generates a poll response message which is partially encrypted and is returned on the digital messaging channel to the control station where it is decoded.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: April 23, 2002
    Assignee: British Telecommunications public limited company
    Inventors: Richard R Knight, David W Parkinson, Robert E Tuck
  • Publication number: 20020044548
    Abstract: Apparatus for linking multiple baseband telephone lines to provide broadband communication. The apparatus comprises a broadband port, a plurality of baseband ports, and a controller. The broadband port provides connection to a broadband device or broadband communication line. The baseband ports provide connection to baseband communication lines. The controller integrates baseband data streams accepted at the baseband ports into a broadband data stream for transmission at the broadband port, and/or demultiplexes a broadband data stream received at the broadband port into baseband streams for transmission at the baseband ports. The baseband data include message data corresponding to the message data of the broadband stream, and control data describing an interrelationship among the message data, for controlling integrating of said baseband message data. The invention allows an individual to use multiple plain old telephone service (POTS) lines in combination to emulate the capability of a broadband line.
    Type: Application
    Filed: July 15, 1996
    Publication date: April 18, 2002
    Inventors: MARK J. FOLADARE, SHELLEY B. GOLDMAN, DAVID P. SILVERMAN, ROY P. WEBER
  • Patent number: 6373852
    Abstract: Apparatus for linking multiple baseband telephone lines to provide broadband communication. The apparatus includes a broadband port, a plurality of baseband ports, and a controller. The broadband port provides connection to a broadband device or broadband communication line. The baseband ports provide connection to baseband communication lines. The controller integrates baseband data streams accepted at the baseband ports into a broadband data stream for transmission at the broadband port, and/or demultiplexes a broadband data stream received at the broadband port into baseband streams for transmission at the baseband ports. The baseband data include message data corresponding to the message data of the broadband stream, and control data describing an interrelationship among the message data, for controlling integrating of the baseband message data. The invention allows an individual to use multiple plain old telephone service (POTS) lines in combination to emulate the capability of a broadband line.
    Type: Grant
    Filed: July 15, 1996
    Date of Patent: April 16, 2002
    Assignee: AT&T Corp.
    Inventors: Mark Jeffrey Foladare, Shelley B. Goldman, David Phillip Silverman, Roy Philip Weber
  • Patent number: 6373830
    Abstract: A CDMA wireless digital communication system which supports all types of voice and data communications while utilizing the minimum amount of bandwidth for the particular application. The system efficiently allocates ISDN bandwidth on demand by a subscriber. Upon initialization of the subscriber unit, the system establishes a channel and generates the necessary spreading codes to support the highest capacity channel desired by the subscriber unit. Portions of the communication spectrum bandwidth are not reserved until actually required by the subscriber unit. Since the call setup is performed at the beginning of a call from that subscriber unit, including the assignment of spreading codes, a subscriber unit can quickly gain access to the portion of the spectrum that is required to support the particular application.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: April 16, 2002
    Assignee: InterDigital Technology Corporation
    Inventor: Fatih M. Ozluturk
  • Patent number: 6370122
    Abstract: ISDN telecommunications network and method for the monitoring and checking of subscriber connections of the ISDN telecommunications network. The telecommunications network includes a plurality of subscriber connections, and at least one checking station that is connectable to a desired one of the plurality of subscriber connections. Each of the plurality of subscriber connections includes an answering station adapted to receive messages from and send messages to the checking station. The at least one checking station includes a device to establish a connection with the desired one of the plurality of subscriber connections, and the answering station is adapted to be placed into a monitoring state. Signaling information exchanged over the D channel associated with the desired one of the plurality of subscriber connections is transmitted to the checking station.
    Type: Grant
    Filed: February 9, 1999
    Date of Patent: April 9, 2002
    Assignee: Siemens Schweiz AG
    Inventors: Iwan Nussbaumer, Jürg Thimm, Charles Zehnder
  • Patent number: 6359909
    Abstract: There is provided a switch device in a communication system in which a relay service of a cell or packet is provided on demand. A layer-3 communication controller performs a signaling control of a call set-up/release requested by a user terminal in accordance with a layer-3 communication protocol. A layer-3 communication restart controller can be connected to the user terminal in accordance with the layer-3 communication protocol and is connected to controllers in the switch device via a given interface. The layer-3 communication restart controller requests a call release process for a call managed by the layer-3 communication controller in accordance with a restart request for a call from the user terminal, and requests a restart process to the user terminal in accordance with a call release process issued in the switch device.
    Type: Grant
    Filed: May 9, 1997
    Date of Patent: March 19, 2002
    Assignee: Fujitsu Limited
    Inventors: Jun Ito, Shigetaka Moriyama, Tomomi Ogawa
  • Publication number: 20020031145
    Abstract: The present invention is an apparatus, system, and method for converting point codes in a signal transfer point in a telecommunications signaling system. The STP converts point codes which designate the origination and destination signaling points for the message. The conversion is based on information defined by the messages, such as origination or destination information. The present invention creates a virtual signaling system which can be reconfigured at the STP by converting point codes, and thus, altering the identities of the signaling points. The present invention is also operable to convert circuit identification codes and transfer integrated services user part messages to a user part.
    Type: Application
    Filed: September 4, 2001
    Publication date: March 14, 2002
    Inventors: Joseph Michael Christie, Albert Daniel Duree, Michael Joseph Gardner, William Lyle Wiley
  • Patent number: 6356556
    Abstract: A software-based automated DS0 channel format analysis routine resident in a U-BRITE interface card's microcontroller solves the problem of potential misconfiguration of ISDN interface circuit cards, as may result from the failure to properly set DS0 time slot option switches to their intended ISDN channel assignments. When exercised, the routine automatically determines not only what DS0 channels are available at the remote ISDN circuit card, but also the order in which those DS0 channels are multiplexed by that remote card's circuitry. As a consequence, once the routine has run to completion, each ISDN interface card will contain the same DS0 time slot multiplexing scheme—corresponding to what has been manually configured at a remote card—even if the remote card's DS0 option switches were originally incorrectly set.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: March 12, 2002
    Assignee: Adtran, Inc.
    Inventors: Robert James Toth, Michael Scott Sansom
  • Patent number: 6348874
    Abstract: A system in which remote nodes are supplied with electrical power using existing network communication links. A communication device in a system according to the present techniques routes electrical power to a remote node via a set of unused lines of a network communication link used for communication with the remote node. The electrical power distributed to the remote node may be AC or DC power.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: February 19, 2002
    Assignee: Agilent Technologies, Inc.
    Inventors: Wesley D. Cole, Hans J. Sitte, Mutsuya Ii, John C. Eidson
  • Patent number: 6343118
    Abstract: The invention relates to a method and an apparatus to establish both telephone and digital communication through an interface between a subscriber unit and a Local Exchange on a telecommunication line intended for digital traffic, for instance an ISDN-line. For the telephone communication, the subscriber unit and the Local Exchange are communicating by transmitting packages according to a protocol comprising PSTN speech communication together with at least service functions through an interface between the subscriber unit and the Local Exchange.
    Type: Grant
    Filed: September 28, 1998
    Date of Patent: January 29, 2002
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventor: Lars-Olof Haster
  • Publication number: 20020001318
    Abstract: An MTP L3 protocol integrating apparatus of a signaling system No.7 or other telecommunications network includes: a narrowband-ISDN user part (N-ISUP) network; a broadband-ISDN user part (B-ISUP) network; and a protocol integrating unit receiving a predetermined message from a lower layer and simultaneously interfacing the corresponding message to the N-ISUP network and the B-ISUP network according to a protocol type of the received message. The N-ISDN protocol and the B-ISDN protocol are all received by a single unit and selectively operated according to a user's instruction, so that the N-ISUP network and the B-ISUP network can be simultaneously interfaced. In addition, rather than replacing the ISDN protocol itself as in the background art, the MTP L2 or AAL are replaced, so that the presently used ISDN protocol can be easily modified as the occasion demands.
    Type: Application
    Filed: June 29, 2001
    Publication date: January 3, 2002
    Applicant: LG Electronics Inc.
    Inventor: Seong Jun Yoon
  • Publication number: 20010050917
    Abstract: The present invention relates to a high-speed digital transmission method using an analog subscriber line (for example, an existing telephone-use copper cable), a subscriber accommodating system used in the high-speed digital transmission method, an accommodating device on a subscriber-terminal side and an accommodating device on an accommodating station side. The present invention includes the steps of providing a subscriber distributing device, to which a plurality of subscribers are connected, on a subscriber-terminal side of an analog subscriber line in a high-speed digital transmission method using the analog subscriber line; setting a low-frequency band part as a control channel; setting a high-frequency band part as one or a plurality of communication channels; and controlling the one or plurality of communication channels by use of the control channel. The plurality of subscribers communicate by using the same analog subscriber line.
    Type: Application
    Filed: July 19, 2001
    Publication date: December 13, 2001
    Inventors: Kazuhiko Inada, Noriki Kajizaki, Hiroshi Kinoshita
  • Patent number: 6327270
    Abstract: The present invention is an apparatus, system, and method for converting point codes in a signal transfer point in a telecommunications signaling system. The STP converts point codes which designate the origination and destination signaling points for the message. The conversion is based on information defined by the messages, such as origination or destination information. The present invention creates a virtual signaling system which can be reconfigured at the STP by converting point codes, and thus, altering the identities of the signaling points. The present invention is also operable to convert circuit identification codes and transfer integrated services user part messages to a user part.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: December 4, 2001
    Assignee: Sprint Communications Company, L. P.
    Inventors: Jospeh Michael Christie, Albert Daniel Duree, Michael Joseph Gardner, William Lyle Wiley
  • Patent number: 6324183
    Abstract: Seamless transport of messages is provided between SS7 network elements and Internet Protocol (IP) network elements using an STP as an intermediary. Thus, messages may be routed between a first SP and a second SP via an STP using IP. Messages may be routed between an SP and an IP node via an STP using IP. Messages also may be routed between a first IP node and a second IP node via an STP using IP. Thus, the STP can be used as a vehicle for message transport among nodes of an SS7 network, among nodes of an IP network and between SS7 and IP networks. SS7 messages are bidirectionally communicated between an STP and at least one other SP of an SS7 network using IP, preferably TCP/IP. Preferably, SS7 messages are bidirectionally communicated between an STP and at least one SCP using IP.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: November 27, 2001
    Assignee: Tekelec
    Inventors: Paul Andrew Miller, David Michael Sprague, Dan Alan Brendes, Venkataramaiah Ravishankar