Adapting Constant Bit Rate (cbr) Data (e.g., Voice, Or Narrow Band Isdn Over Atm, Or Using Aal1) Patents (Class 370/395.61)
  • Patent number: 10142644
    Abstract: A system for decoding a data stream, comprising: a first decoder configured to decode the data stream at a first rate so as to generate a first stream of frames for playback and arranged to continue generating the first stream despite encountering an error in a particular frame; a second decoder operable to decode the data stream at a second rate so as to generate a second stream of frames; and a controller configured to: detect the error and cause the second decoder to decode the data stream from the particular frame in dependence on error correction data, the second rate being faster than the first rate such that the second stream catches up with the first stream; determine when the second decoder catches up with the first decoder; and cause the second decoder to operate at the first rate so as to generate the second stream for playback.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: November 27, 2018
    Assignee: Imagination Technologies Limited
    Inventors: Venu Annamraju, Harish Rajamani, Ranjith Irukulapati
  • Patent number: 9889868
    Abstract: Disclosed is a railway wireless sensor network system. The railway wireless sensor network system includes a plurality of sensors which are included in a railway vehicle and measure an operation state of the railway vehicle in real time, a plurality of routers which receive information on the measured operation state through a dedicated channel with each sensor, and a gateway which receives information on the operation state through a dedicated channel between the routers, and periodically transmits information on the received operation state to a railway vehicle control center.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: February 13, 2018
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Il Kim, Geon Min Yeo, Jae Hoon Kim
  • Patent number: 9681146
    Abstract: A system for decoding a data stream, comprising: a first decoder configured to decode the data stream at a first rate so as to generate a first stream of frames for playback and arranged to continue generating the first stream despite encountering an error in a particular frame; a second decoder operable to decode the data stream at a second rate so as to generate a second stream of frames; and a controller configured to: detect the error and cause the second decoder to decode the data stream from the particular frame in dependence on error correction data, the second rate being faster than the first rate such that the second stream catches up with the first stream; determine when the second decoder catches up with the first decoder; and cause the second decoder to operate at the first rate so as to generate the second stream for playback.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 13, 2017
    Assignee: Imagination Technologies Limited
    Inventors: Venu Annamraju, Harish Rajamani, Ranjith Irukulapati
  • Patent number: 9674556
    Abstract: There are provided methods and apparatus for in-loop artifact filtering. An apparatus includes an encoder for encoding an image region. The encoder has at least two filters for successively performing in-loop filtering to respectively reduce at least a first and a second type of quantization artifact.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: June 6, 2017
    Assignee: Thomson Licensing
    Inventors: Meng-Ping Kao, Peng Yin, Oscar Divorra Escoda
  • Patent number: 9665646
    Abstract: The technique for the delivery of a media file is adjusted based on current constraints on a channel being used by a device requesting the media file. The media file is copied and the various copies are optimized for different constraints. Then, the media file is delivered by examining the current constraints on the channel and transmitting the media data from the copy of the media file that is most suitable for the current constraints. In some implementations, the constraint is the bandwidth of the channel and the copies of the media file are based on different bit rate adjustments.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: May 30, 2017
    Assignee: Flash Networks, Ltd
    Inventors: Adi Belan, Adi Weiser, Yoav Weiss
  • Patent number: 9467387
    Abstract: A scheme for managing bandwidth in a multi-client environment including one or more ABR clients and, optionally, one or more non-ABR clients. When an ABR client enters a sleep phase of its duty cycle, phantom tokens may be issued to simulate full capacity of the network link, wherein phantom packets are used for ABR bandwidth calculation. Any extra bandwidth that would have been used by another ABR client to artificially inflate its video quality may be optionally allocated to a non-ABR client engaged in a progressive download session in the same bandwidth pipe.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: October 11, 2016
    Assignee: ERICSSON AB
    Inventors: Chris Phillips, Robert Forsman, Jennifer Reynolds
  • Patent number: 9253515
    Abstract: Different data communication architectures deliver a wide variety of content, including audio and video content, to consumers. The architectures employ channel bonding to deliver more bandwidth than any single communication channel can carry. In some implementations, the communication architectures distribute data streams to bonded channels that are clocked independently. A system is provided for synchronizing the bonded channels.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: February 2, 2016
    Assignee: Broadcom Corporation
    Inventors: Rajesh Mamidwar, Xuemin Chen, Victor Hou, Guangcai Zhou
  • Patent number: 9191986
    Abstract: A tunnel redirection method and an interworking function entity are disclosed. An IWS corresponding to an original tunnel receives a tunnel redirection notification sent by an IWS corresponding to a new tunnel or an MME. A currently-performed signaling interaction is terminated according to the notification. The IWS corresponding to the new tunnel or the MME sends a tunnel redirection notification to the IWS corresponding to the original tunnel. The IWS corresponding to the original tunnel terminates the currently-performed signaling interaction.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: November 17, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Jie Zhao, Gongyi Xia
  • Patent number: 9119221
    Abstract: A method and arrangement for providing updated information on the availability of multimedia options to terminal users. A first terminal (A) is initially engaged in a voice call with a second terminal (B) by using a first access admitting simultaneous multimedia communication. At least one available multimedia option is indicated based on capabilities of the first and second terminals. A change of connection is then detected from the first access to a second access not admitting simultaneous multimedia communication. In response thereto, a multimedia disabling notification is sent to the second terminal, and said at least one multimedia option is indicated as being no longer available. Preferably, the multimedia disabling notification is sent as an SMS message.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 25, 2015
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventor: Robert Skog
  • Patent number: 9113176
    Abstract: A method of communication is provided according to embodiments of the present invention. A request is received for video data for each of a plurality of devices. For each of the wireless devices, performance capability of the device, and optionally network information, is obtained. A video scalability level for the video data for each of the devices is determined based on the obtained performance capability, and optionally the network information. The video data for each of the devices is scaled according to the determined video scalability level, and the scaled video data is delivered to each of the devices.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: August 18, 2015
    Assignee: The Regents of the University of California
    Inventors: Naomi Ramos, Sujit Dey
  • Patent number: 9032450
    Abstract: A method is provided comprising: receiving a constant bit rate video stream representing a single video from a video source via a managed broadband connection; converting the constant bit rate video stream into a single non-adaptive bit rate video stream by modifying a video transport stack of the video to be compatible with a home device media player video transport stack; modifying a video control stack of the video to be compatible with a device in a home network; adding a home networking transport stack to the video stream, wherein the home networking transport stack is such that it would appear to the device in the home network as if the video stream came from a server local to the home network; and delivering the video stream to a device in the home network.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: May 12, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Glenn Algie, Alan Messer
  • Patent number: 8942243
    Abstract: The invention relates to a method for controlling a bit-rate of a session in a packet-switched communications system where multiple sessions are set-up via a shared resource. A current bit-rate of the session is compared to a bit-rate range valid for the session to determine a distance from the position of the current bit-rate to one of the end-points of the bit-rate range. The current bit-rate is then adapted differently depending on the distance to the selected end-point. By controlling the bit-rate of each session that is set-up via the shared resource for applications that provide delay-sensitive services to users in this way the method and corresponding system and sender-receiver arrangements have the effect that rate adaptations can be distributed among the applications so that users share responsibility for rate adaptations.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: January 27, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stefan Wänstedt, Daniel Enström, Ghyslain Pelletier
  • Publication number: 20140348174
    Abstract: Methods and apparatus for efficiently servicing isochronous streams (such as media data streams) associated with a network. In one embodiment, an Isochronous Cycle Manager (ICM), receives multiple independent streams of packets that include isochronous packets arriving according to different time bases (e.g., where each stream has a different time base). The packets are sorted by the ICM into a buffering mechanism according to their required presentation time. Additionally the ICM calculates a launch time for each packet. The NIC transmits the packets from the queue according to an access scheme, such as a time division multiplexed (TDM) scheme where each of a plurality of cycles is subdivided into time slots. During appropriate time slots, the NIC transmits the packets in chronological order, as read out of the buffering mechanism.
    Type: Application
    Filed: August 12, 2014
    Publication date: November 27, 2014
    Inventors: Ashley I. Butterworth, Girault W. Jones, JR., Matthew X. Mora
  • Patent number: 8750315
    Abstract: Described are computer-based methods and apparatuses, including computer program products, for efficiently storing transport streams. A first sequence of one or more packets associated with the first transport stream is received, the first sequence comprising one or more data packets. A storage packet is generated by selecting one or more packets from the first sequence, the storage packet comprising a packet header and the one or more data packets. One or more null packet insertion locations are identified in a second sequence of one or more packets associated with a second transport stream. Null packet insertion information is generated based on the one or more null packet insertion locations, the information including data indicative of a reconstruction parameter related to reconstructing the second sequence from the storage packet by inserting one or more null packets that are not stored in the storage packet, wherein the packet header includes the null packet insertion information.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: June 10, 2014
    Assignee: Akamai Technologies, Inc.
    Inventors: Shirish Dandekar, Craig Frink, Santosh Krishnan, Weidong Xu, Qin-Fan Zhu
  • Patent number: 8665900
    Abstract: A method and system for maintaining quality of service parameters for transmissions as a native Ethernet service between a first network having a first communication protocol and a second network having a second communication protocol that is different from the first communication protocol. The interworking device includes a first network interface operable to communicate with the first communication network using the first communication protocol, a second network interface operable to communicate with the second communication network using second communication protocol and a processing unit in communication with the first network interface and the second network interface. The processing unit receives a frame from the first network in the first communication protocol, maps parameters corresponding to quality of service parameters in the first communication protocol to quality of service parameters in the second communication protocol and assembles a data packet in the second communication protocol.
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: March 4, 2014
    Assignee: Rockstar Consortium US LP
    Inventors: Sameh Rabie, Osama Aboul Magd
  • Patent number: 8625608
    Abstract: The invention relates to a method for controlling a bit-rate of a session in a packet-switched communications system where multiple sessions are set-up via a shared resource. A current bit-rate of the session is compared to a bit-rate range valid for the session to determine a distance from the position of the current bit-rate to one of the end-points of the bit-rate range. The current bit-rate is then adapted differently depending on the distance to the selected end-point. By controlling the bit-rate of each session that is set-up via the shared resource for applications that provide delay-sensitive services to users in this way the method and corresponding system and sender-receiver arrangements have the effect that rate adaptations can be distributed among the applications so that users share responsibility for rate adaptations.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: January 7, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stefan Wanstedt, Daniel Enstrom, Ghyslain Pelletier
  • Patent number: 8620337
    Abstract: Systems, methods, and computer-readable media are for selectively establishing radio access bearers configured to support simultaneous voice and data communications in a mobile telecommunications network. An exemplary method includes receiving a request to initiate a data session at a mobile device that is currently engaged in a voice session and, in response to receiving the request, determining if the mobile device is capable of supporting a radio access bearer configured to simultaneously support the data session and the voice session. The method further includes allowing or denying establishment of the radio access bearer based upon the determination.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: December 31, 2013
    Assignee: AT&T Mobility II LLC
    Inventors: Sheldon Meredith, Mark Austin, Mario Kosseifi
  • Patent number: 8571039
    Abstract: A method and apparatus for transmitting an audio signal over a communication channel comprising encoding the audio signal with an encoder 204 using a first sampling rate, filtering the audio signal using a first cut off frequency, the first cut off frequency being chosen in dependence upon the first sampling rate, and transmitting the encoded and filtered audio signal over the communication channel. The presence of a condition in which the sampling rate of the encoder 204 is to be switched to a second sampling rate at a switching time is determined and if the condition has been determined to be present, the cut off frequency used in the filtering step is gradually changed from the first cut off frequency to a second cut off frequency, the second cut off frequency being chosen in dependence upon the second sampling rate, such that the audio bandwidth of the transmitted signal changes gradually when the sampling rate is switched to the second sampling rate.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: October 29, 2013
    Assignee: Skype
    Inventors: Stefan Strommer, Karsten Vandborg Sorensen, Soren Skak Jensen, Koen Vos, Jon Bergenheim
  • Publication number: 20130170497
    Abstract: A voice relaying apparatus includes a receiving section for receiving a cell from an asynchronous transfer mode (ATM) network, a plurality of cell assembling/disassembling units for assembling and disassembling the cells, and a transmitting section for transmitting the cells assembled by each of the plurality of cell assembling/disassembling units. Each of the plurality of cell assembling/disassembling units is composed of a cell disassembling section for disassembling the cell received by the receiving section, a detecting section for detecting whether or not the voice relaying apparatus is carrying out a relay switch operation, and a cell assembling section for assembling the cell disassembled by the cell disassembling section and then sending to the transmitting section, if the fact that the voice relaying apparatus is carrying out the relay switch operation is detected by the detecting section.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Applicant: JUNIPER NETWORKS, INC.
    Inventor: JUNIPER NETWORKS, INC.
  • Patent number: 8462814
    Abstract: A method to transmit and receive Internet protocol data packets comprising running an Internet protocol application, outputting an Internet protocol data packet based on the running of the Internet protocol application and transmitting the Internet protocol data packet via a physical layer compliant with Ethernet first mile standards.
    Type: Grant
    Filed: December 4, 2006
    Date of Patent: June 11, 2013
    Assignee: ADC DSL Systems, Inc.
    Inventor: Joe Polland
  • Patent number: 8451836
    Abstract: In the field of optical network communication technologies, a method, a device, and a system for transmitting a constant rate data stream are provided. The method for transmitting the constant rate data stream by the first network device includes: receiving a constant rate data stream; calculating an input rate of the constant rate data stream or a rate difference between the input rate and a standard rate of the constant rate data stream in each cycle of a reference clock; encapsulating the constant rate data stream into a Gigabit-Passive Optical Network (GPON) Encapsulation Method (GEM) frame by using a bit as a minimum encapsulation unit; and encapsulating the GEM frame into a GPON Transmission Convergence Layer (GTC) frame, and sending the GTC frame to the second network device through a GPON network. Therefore, the technical solutions may be widely applied to the GPON network.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Kin Li, Jianlin Zhou, Shimin Zou
  • Patent number: 8406294
    Abstract: A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference picture, composing second quality layers for a current picture that is encoded with reference to the reference picture, and assigning a priority each of the first and second quality layers, wherein a low priority is assigned to a quality layer having a small influence on a video quality reduction of the current picture when the quality layer is truncated.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: March 26, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Manu Mathew, Kyo-hyuk Lee, Woo-jin Han
  • Patent number: 8259735
    Abstract: A method of media transmission. The method includes providing at least one variable bit rate (VBR) video stream and multiplexing the at least one VBR video stream together with auxiliary data related to the at least one VBR video stream, in a constant bit rate (CBR) stream. The stream is transmitted to a first receiving unit, which is adapted to discard the auxiliary data as padding and use the at least one VBR stream and to a second receiving unit, which is adapted to extract the auxiliary data and use it in further handling of the at least one VBR stream.
    Type: Grant
    Filed: August 8, 2008
    Date of Patent: September 4, 2012
    Assignee: Imagine Communications Ltd.
    Inventors: Ron Gutman, Doron Segev
  • Patent number: 8249075
    Abstract: Traffic from a number of different service type users is multiplexed into minicells for transmission over an ATM link. Service type information is transmitted in a service specific field and is stored. This stored information is used to derive length information to delineate the different length user minicells. The technique occupies less bandwidth than the conventional methods for transmitting cell length information.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: August 21, 2012
    Assignee: Ericsson AB
    Inventors: Simon Daniel Brueckheimer, David John Stacey
  • Patent number: 8060118
    Abstract: A system and method which allows for a more direct form of presenting useful information to a mobile handset user is disclosed. More specifically a method to dedicate a transmission period of the MAC protocol when certain pre-formatted information is transmitted to all users on a network.
    Type: Grant
    Filed: April 28, 2008
    Date of Patent: November 15, 2011
    Assignee: XG Technology, Inc.
    Inventor: Joseph A. Bobier
  • Patent number: 8040876
    Abstract: A method may include receiving, at a network device, from a calling party location, an input setup message that includes a called party phone number value; determining whether the input setup message includes a voice telephony over asynchronous transfer mode (VToA) designator; generating an output setup message including an alias address associated with a network gateway that is in communication with a public switched telephone network (PSTN) switch through a plurality of trunk lines when it is determined that the input setup message includes a VToA designator, where the alias address is based on the called party phone number value and indicates a desired trunk line of the plurality of trunk lines; and transmitting the output setup message, the output setup message causing the selection of the desired trunk line of the plurality of trunk lines in order to establish communication between the calling party location and the PSTN switch.
    Type: Grant
    Filed: March 30, 2006
    Date of Patent: October 18, 2011
    Assignee: Verizon Business Global LLC
    Inventor: John K. Gallant
  • Patent number: 8005094
    Abstract: Methods and apparatus are provided for circuit emulation services over cell and packet networks. A constant bit rate traffic stream is mapped to one of a cell and packet structure. The constant bit rate traffic stream is mapped to one or more cells and the one or more cells are selectively translated to one or more packets if a packet stream is selected. In addition, one of a received cell and packet stream are mapped to a constant bit rate traffic stream. The packet stream is selectively translated to one or more cells and the one or more cells are translated to the constant bit rate traffic stream. A clock can optionally be recovered from the received cell or packet stream.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: August 23, 2011
    Assignee: Agere Systems Inc.
    Inventors: Juergen Beck, Mark A. Bordogna, Christopher W. Hamilton
  • Patent number: 7983276
    Abstract: A timing source is provided for sending timing information via a packet network. The source comprises a clock for generating the timing information and a packet-forming section for forming a sequence of packets for transporting the timing information to a destination node. A time-stamping section inserts into each packet of the sequence a transmission time derived from the clock and acts as an output section for forwarding the packets to the network at the respective transmission times. In one mode, the packet forming section forms all of the packets of the sequence with the largest size which the packet network is capable of transporting. In another mode, the packets of the sequence have a distribution of sizes which may be fixed or which may vary in response to traffic conditions.
    Type: Grant
    Filed: March 20, 2007
    Date of Patent: July 19, 2011
    Assignee: Zarlink Semiconductor Limited
    Inventors: Martin Richard Crowle, Timothy Michael Edmund Frost
  • Patent number: 7881303
    Abstract: In an embodiment, a node comprises a packet scheduler configured to schedule packets to be transmitted on a link and an interface circuit coupled to the packet scheduler and configured to transmit the packets on the link. The interface circuit is configured to generate error detection data covering the packets, wherein the error detection data is transmitted between packets on the link. The interface circuit is configured to cover up to N packets with one transmission of error detection data, where N is an integer >=2. The number of packets covered with one transmission of error detection data is determined by the interface circuit dependent on an availability of packets to transmit. In another embodiment, the interface circuit is configured to dynamically vary a frequency of transmission of the error detection data on the link based on an amount of bandwidth being consumed on the link.
    Type: Grant
    Filed: December 13, 2006
    Date of Patent: February 1, 2011
    Assignee: GLOBALFOUNDRIES, Inc.
    Inventors: William A. Hughes, Chen-Ping Yang, Greggory D. Donley, Michael K. Fertig
  • Patent number: 7761646
    Abstract: Methods and systems are provided for helping maintain isochronous communications with peripheral devices (308), such as USB devices, over a network (302). Some methods for facilitating isochronous IN communication include noting (1906) passage of a predetermined interval without communication (310) from the peripheral device driver (402), and then creating (1908) a dummy communication (312) and sending (1910) it over the network toward the peripheral device to maintain isochronous communication toward the peripheral device. Some methods for facilitating isochronous OUT communication include noting (2006) passage of a predetermined interval without receipt, over the network, of a responsive communication (310) from the peripheral device in response to a first communication, and then creating (2008) a dummy communication (312) and sending (2010) it toward the peripheral device driver to maintain isochronous communication transmissions toward the peripheral device driver.
    Type: Grant
    Filed: November 6, 2009
    Date of Patent: July 20, 2010
    Assignee: Silex Technology, Inc.
    Inventor: Keiji Okuma
  • Patent number: 7688849
    Abstract: A method and system for maintaining quality of service parameters for transmissions as a native Ethernet service between a first network having a first communication protocol and a second network having a second communication protocol that is different from the first communication protocol. The interworking device includes a first network interface operable to communicate with the first communication network using the first communication protocol, a second network interface operable to communicate with the second communication network using second communication protocol and a processing unit in communication with the first network interface and the second network interface. The processing unit receives a frame from the first network in the first communication protocol, maps parameters corresponding to quality of service parameters in the first communication protocol to quality of service parameters in the second communication protocol and assembles a data packet in the second communication protocol.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: March 30, 2010
    Assignee: Nortel Networks Limited
    Inventors: Sameh Rabie, Aboul Osama Magd
  • Patent number: 7653075
    Abstract: A network system includes a first device and a second device separated by a network having asymmetric routes in which traffic forwarded in a first direction from the first device to the second device may travel a different route than traffic forwarded in a second direction from the second device to the first device. At least three intermediate processing devices are located between the first device and the second device, wherein at least two of the intermediate processing devices are located along different asymmetric routes. The intermediate processing devices intercept a communication flow between the first device and the second device, and encapsulate the communication flow within network tunnels so that communications associated with the communication flow in the first direction and the second direction are forwarded between a same set of at least two of the intermediate processing devices.
    Type: Grant
    Filed: May 15, 2006
    Date of Patent: January 26, 2010
    Assignee: Juniper Networks, Inc.
    Inventors: Balraj Singh, Nitin Gugle
  • Patent number: 7630382
    Abstract: A system for managing circuit emulation service over an Asynchronous Transfer Mode (ATM) network is provided. The system includes control logic configured to receive channelized circuit data from a client, the channelized circuit data being transmitted at an arbitrary rate. The channelized circuit data is formatted into one or more ATM cells. Each ATM cell has a payload. The payload has a number of octets and corresponding validity fields. Each validity field is used to indicate whether the associated octet contains valid data. The one or more ATM cells are transmitted across the ATM network. By examining the validity fields, the transmission of the one or more ATM cells effectively results in transmission of the channelized circuit data at the arbitrary rate over the ATM network. The arbitrary rate is not a multiple of a fundamental rate.
    Type: Grant
    Filed: March 15, 2004
    Date of Patent: December 8, 2009
    Assignee: Network Equipment Technologies, Inc.
    Inventor: Chi-Yin Wong
  • Patent number: 7616580
    Abstract: A device and method are disclosed for correctly restoring a read clock when there are a plurality of STM data stream transmission sources. In a CES device of an ATM communication system, ATM cells from respective connections, which are to be delivered to the same outgoing line, are accumulated in a reassembly buffer memory and a PLO control unit aggregates the amount of ATM cells accumulated in the reassembly buffer memory for each connection. Subsequently, the PLO control unit calculates the frequency of a read clock based on the amount of accumulated ATM cells for each connection. A PLO restores the read clock which is applied to read data from the reassembly buffer memory for delivery to an STM network.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: November 10, 2009
    Assignee: Juniper Networks, Inc.
    Inventor: Yoshio Shirasaki
  • Patent number: 7613206
    Abstract: The invention relates to a method and device for simple and efficient determining characteristics during a transition between an AAL2 signalling protocol and at least one another signalling protocol of at least one communication network. The inventive method and device are characterised in that at least one characteristic is determined on the basis of parametric values assigned to the AA2 signalling protocol and in that the determined characteristics are used for reproducing the parametric values of the AA2 signalling protocol in the parametric values of another signalling protocol.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: November 3, 2009
    Assignee: Nokia Siemens Networks GmbH & Co. KG
    Inventors: Herbert Heiss, Bernhard Pfeil
  • Patent number: 7607154
    Abstract: The streams from a plurality of VBR coders or generic data sources (31) are multiplexed to a single stream by a multiplexer (32), while inserting null packets to make their bit-rates uniform. A null-packet eliminator (60) removes the null packets from the stream, while signaling their positions, and inputs the stream to an ACM modulator (62) which codes the stream with the maximum ruggedness allowed by the rate of the incoming useful packets, and transmits the stream over a satellite channel. In the receiving station, the stream is demodulated by an ACM demodulator (64), and the null packets are re-inserted into the stream by a re-inserter (66), based on the received signaling. A bit-rate control circuit (72) receives from the transmitting station, over a return channel, a signaling of the quality of the received signal (QoS) and modifies the bit-rate of the VBR coders or generic data sources (31) accordingly.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: October 20, 2009
    Assignee: Rai Radiotelevisione Italiana S.p.A.
    Inventor: Alberto Morello
  • Patent number: 7567574
    Abstract: An illustrative intelligent network and method for providing voice telephony over Asynchronous Transfer Mode (“ATM”) and private address translation are provided that can provide significant advantages. The method includes generating an input ATM setup message at the calling party CPE that includes a VToA designator and a called party phone number, extracting information from the input ATM setup message such as the VToA designator and the called party phone number, analyzing the information, designating an ATM address of a called party CPE to be stored in the first parameter of an output ATM setup message, determining if private address translation is needed, designating the ATM address of the called party CPE to be stored in a first instance of the second parameter of the output ATM setup message, designating an ATM address of an egress ATM edge switch to be stored in the first parameter of the output ATM setup message, and generating an output ATM setup message.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: July 28, 2009
    Assignee: Verizon Business Global LLC
    Inventors: John K. Gallant, Thomas Glenn Hall, Jr., Steven R. Donovan
  • Patent number: 7558272
    Abstract: The present invention is a system and a method which enables implementing a scalable, carrier class bundling multiplexed data communication on low rate links. The proposed system and method, which comply with the data transference specifications of both CBR and statistical traffic, offer a data bundling solution with minimal overhead that may operate on different types of connections, using links with diverse capacities. The disclosed bundling mechanism is based on a two level mechanism: the lower level is composed of any number of superlinks, each gathering 8 communication links. The upper level is composed of two bundlers—for CBR data and for statistical traffic—each connected to all the superlinks. The header of each dataframe includes all the required information. This guarantees that the receiving side has full status information for all the links suffice that only one link is received without a CRC error.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: July 7, 2009
    Assignee: Megabridge Ltd.
    Inventor: Eli Meir
  • Patent number: 7545808
    Abstract: A network device switches variable length data units from a source to a destination in a network. An input port receives the variable length data unit and a divider divides the variable length data unit into uniform length data units for temporary storage in the network device. A distributed memory includes a plurality of physically separated memory banks addressable using a single virtual address space and an input switch streams the uniform length data units across the memory banks based on the virtual address space. The network device further includes an output switch for extracting the uniform length data units from the distributed memory by using addresses of the uniform length data units within the virtual address space. The output switch reassembles the uniform length data units to reconstruct the variable length data unit. An output port receives the variable length data unit and transfers the variable length data unit to the destination.
    Type: Grant
    Filed: September 15, 2005
    Date of Patent: June 9, 2009
    Assignee: Juniper Networks, Inc.
    Inventors: Pradeep S. Sindhu, Dennis C. Ferguson, Bjorn O. Liencres, Nalini Agarwal, Hann-Hwan Ju, Raymond Marcelino Manese Lim, Rasoul Mirzazadeh Oskouy, Sreeram Veeragandham
  • Patent number: 7535894
    Abstract: The invention provides a network element and method for handling ATM traffic and TDM traffic. The network element handles TDM traffic carried on ATM cells, and ATM traffic, and comprises generating means for generating new ATM cells for transmitting ATM traffic. At least part of received ATM cells is inserted as payload into newly generated ATM cells. The Network element is connected on the one hand with a network (30) using both TDM traffic carried on ATM cells, and ATM cell traffic, and on the other hand via at least one PDH (PDH=Plesiochronous Digital Hierarchy) transmission line (6) connected with a chain containing at least one second network element (1) using TDM traffic and at least one further network element (20) using ATM traffic. The PDH transmission line (6) carries groups of time slots with TDM traffic and groups of time slots carrying complete ATM cells.
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 19, 2009
    Assignee: Nokia Corporation
    Inventor: Oliver Klotz
  • Patent number: 7519728
    Abstract: A system improves bandwidth used by a data stream. The system receives data from the data stream and partitions the data into bursts. At least one of the bursts includes one or more idles. The system selectively removes the idles from the at least one burst and transmits the bursts, including the at least one burst.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: April 14, 2009
    Assignee: Juniper Networks, Inc.
    Inventors: Sharada Yeluri, Kevin Clark, Shahriar Ilislamloo, Chung Lau
  • Patent number: 7447239
    Abstract: One aspect of the invention provides an ingress apparatus comprising a signal processing apparatus for receiving an incoming data frame and locating the position of path overhead, and a monitoring apparatus arranged to extract information from the located path overhead. The ingress apparatus further includes an insertion apparatus for receiving, from the monitoring apparatus, information extracted from the path overhead of one or more signal path, and being further arranged to insert the extracted information into a respective data frame component which occupies a fixed position in a data frame. Thus, information which would normally occupy a non-fixed position in a data frame is moved to a fixed position. As a result, the information can subsequently be accessed without having to employ relatively complex apparatus for locating information which occupies a non-fixed position.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: November 4, 2008
    Assignee: Nortel Networks Limited
    Inventors: Mark Carson, William Smith, James Kearney
  • Patent number: 7447216
    Abstract: Society of Motion Picture and Television Engineers (SMPTE) video data is separated into first data and second data. A first signal is formed based on the first data. A second signal is formed based on the second data. The first signal is transported via a first Optical Carrier 3 (OC-3) channel. The second signal is transported via a second OC-3 channel.
    Type: Grant
    Filed: August 4, 2006
    Date of Patent: November 4, 2008
    Assignee: SBC Technology, Resources, L.P.
    Inventors: Pierre Costa, John Robert Erickson, Ahmad Ansari
  • Patent number: 7436815
    Abstract: A system and method of switching information in a time division multiplexed (TDM) communications network are described. The TDM time slots correspond to channels of circuit information. A circuit interface receives information from the TDM communication network, extracts circuit data therefrom, and provides the extracted circuit data on an internal bus. It also receives circuit data from an internal bus and transmits the data received from the internal bus on to the TDM communications network. A switching fabric receives packets having a header and a payload in which the header includes information identifying a destination for the packet and in which the fabric transmits a received packet in accordance with the destination identification in the packet header. Adaptation logic, in response to the circuit interface, packs information from multiple circuits into a payload of a packet and schedules the delivery of such a packet to the fabric.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: October 14, 2008
    Assignee: Telica, Inc.
    Inventor: Stephen A Caldara
  • Patent number: 7411962
    Abstract: In some embodiments of the present invention, applications presenting user information streams at a service access point (SAP) to AAL-2 above the Common Part Sublayer (CPS) may provide values for predefined parameters that may determine how frames of information in the user information streams are segmented in run-time into CPS packets and packed into CPS protocol data units (CPS-PDU), each of which forms the payload of an ATM cell. These parameter values may be defined per channel identifier (CID) or for a group of CIDs.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: August 12, 2008
    Assignee: Wintegra Ltd.
    Inventors: Ricardo Berger, Eran Kirzner, Ronen Weiss, Yoram Yeivin
  • Patent number: 7408939
    Abstract: A method, system and transport unit to combine and transport multiple variable data rate LAN streams and fixed data rate voice streams through a plurality of transmission links used as a conduit for transmission of data between local area networks are disclosed. Combining both TDM and packetized network traffic into packets for transfer between LANs using a framed protocol for the transfer is further disclosed.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: August 5, 2008
    Assignee: Ceterus Networks, Inc.
    Inventors: Rajendra R. Damle, Troy D. Robinson, Robert K. Butler, Robert W. Cantwell, Justin Hunt, Robert Dittmar
  • Patent number: 7370247
    Abstract: A method and apparatus provide a receiver with an architecture to regulate a bit error rate of the receiver using an offset based on detecting false transitions in received data. In an embodiment, such false transitions in data may be determined in a bang-bang detector.
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: May 6, 2008
    Assignee: Intel Corporation
    Inventor: Bjarke Goth
  • Patent number: 7366183
    Abstract: The present invention allows a terminating telephony switch to detect whether or not a caller associated with an incoming call is associated with multimedia capability. The terminating telephony switch will monitor a call setup message, such as an Integrated Services User Protocol Initial Address Message, to determine whether or not there is multimedia capability information indicative of the caller's telephony terminal being associated with another media device, or including media capability sufficient to support packet sessions over a data network. The multimedia capability information may simply be the presence or absence of a flag, wherein the presence of a flag indicates there is multimedia capability. Alternatively, the call setup message may include the multimedia address associated with the media device of the caller. The originating telephony switch is configured to create call setup messages to provide multimedia capability information to enable the functionality of the terminating telephony switch.
    Type: Grant
    Filed: May 16, 2003
    Date of Patent: April 29, 2008
    Assignee: Nortel Networks Limited
    Inventor: Dany Sylvain
  • Patent number: RE40398
    Abstract: A telecommunications system comprises an asynchronous transfer mode (ATM) network having uncommitted bandwidth, and a plurality of adaptive grooming routers (AGR) coupled to the network. The AGRs comprise a group adapted to function as a virtual transit exchange whose fabric and control are distributed over the group. The virtual comprising the AGRs incorporates independent connection control and call routing functions and has means for determining the current system status whereby to set up narrow band connections across the ATM network based on that status determination.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: June 24, 2008
    Assignee: Nortel Networks Limited
    Inventors: Simon Daniel Brueckheimer, David John Stacey, Roy Harold Mauger
  • Patent number: RE44487
    Abstract: In an embodiment, a node comprises a packet scheduler configured to schedule packets to be transmitted on a link and an interface circuit coupled to the packet scheduler and configured to transmit the packets on the link. The interface circuit is configured to generate error detection data covering the packets, wherein the error detection data is transmitted between packets on the link. The interface circuit is configured to cover up to N packets with one transmission of error detection data, where N is an integer >=2. The number of packets covered with one transmission of error detection data is determined by the interface circuit dependent on an availability of packets to transmit. In another embodiment, the interface circuit is configured to dynamically vary a frequency of transmission of the error detection data on the link based on an amount of bandwidth being consumed on the link.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: September 10, 2013
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: William A. Hughes, Chen-Ping Yang, Greggory D. Donley, Michael K. Fertig