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| Number | Title | Issue Date |
| 8068518 | Method and device for virtual concatenation transmission In a method and a device for virtual concatenation transmission which multiplex traffics of low-speed frames into a high-speed frame based on a virtual concatenation, a virtual concatenation with an excellent transmission efficiency is provided. Specifically, in ord... | 11/29/2011 |
| 7920604 | Data transmission in an SDH network A method for the transmission of data in a synchronous digital hierarchy (SDH) network comprising the steps of transmitting to a node of the network a form of data signal from outside the network, converting the signal into a virtually concatenated information struc... | 04/05/2011 |
| 7894492 | Programmable SONET framing A synchronous optical network (SONET) framer includes a frame dimension unit and a programming interface. The frame dimension unit can be programmed with a frame dimension through the programming interface. The SONET framer converts a data stream to and/or from a fr... | 02/22/2011 |
| 7822075 | Method and system of signal transmission in base transceiver station based on remote radio head The invention relates to a method of signal transmission between a host BTS and Remote Radio Unit(s), and the BTS communication system thereof. The transmission channel between the host BTS and the Remote Radio Unit(s) uses wideband transmission links or a network, ... | 10/26/2010 |
| 7746907 | Multi-stage SONET overhead processing An overhead processor processes overhead bytes in a stream of Synchronous Optical Network (SONET) frames in multiple levels. In one embodiment, the overhead processor includes three stages. A first stage provides access for external processing of a first set of over... | 06/29/2010 |
| 7672341 | Transmission apparatus and reception interface apparatus An ADM apparatus includes a first synchronism section for detecting synchronism when a reception frame received from a reception port is a first frame, a fault information detection section for detecting whether or not fault information is set in a first predetermin... | 03/02/2010 |
| 7613213 | Time multiplexed SONET line processing Time multiplexed processing of multiple SONET signals uses the same shared circuitry for framing, descrambling, maintenance signal processing, control byte processing and extraction, pointer tracking, retiming, and alarm indication. The signals are deserialized and ... | 11/03/2009 |
| 7577171 | Source centered clock supporting quad 10 GBPS serial interface A multiple bit stream interface interfaces a first transmit data multiplexing integrated circuit and a second transmit data multiplexing integrated circuit. The multiple bit stream interface includes an interface plurality of transmit bit streams each of which carri... | 08/18/2009 |
| 7468994 | Method and apparatus for interleave processing, and computer program product for interleave processing An apparatus defines interleave-processing segments to be interleaved in a backward direction relative to a flow direction of bit streams. The segments are defined every time the segments, ILVU-BR, -CR, -DR are successfully set for each of the respective bit streams... | 12/23/2008 |
| 7463656 | Multi-stage SONET overhead processing An overhead processor processes overhead bytes in a stream of Synchronous Optical Network (SONET) frames in multiple levels. In one embodiment, the overhead processor includes three stages. A first stage provides access for external processing of a first set of over... | 12/09/2008 |
| 7463655 | Method of transmitting data with redundant structure, and device for transmitting data by said method The present invention provides a data transmission method in which a SONET is applied to Ethernet LANs. This method realizes a redundant structure of the Ethernet while utilizing the bandwidth of the SONET. On a server side, a working path and a back-up path of the ... | 12/09/2008 |
| 7436860 | Method of advertising DNS server address and routing method thereby A method of advertising an address of a domain name service (DNS) server present, for example, on an IPv6 network by searching a location of the DNS server on a router network subnet using a dynamic routing protocol, storing link state information of the router indi... | 10/14/2008 |
| 7372862 | Rate adaption within a TDM switch using bit stuffing The present invention discloses a method and an arrangement providing transmission of data through a node, e.g. a switch, having different input and output line interfaces in a wide range of data speed, without introducing any loss of bits, but still maintaining the... | 05/13/2008 |
| 7366352 | Method and apparatus for performing fast closest match in pattern recognition A method and apparatus for determining a closest match of N input patterns relative to R reference patterns using K processing units. Each of a set of input patterns are loaded into the K processing units. One of the Reference patterns is sequentially loaded into ea... | 04/29/2008 |
| 7362777 | Concatenated transmission of synchronous data A multiplexed frame based client signal comprising a payload and a client overhead is transported between first and second client networks over a plurality of signal paths by inverse multiplexing the client signal into a plurality of lower rate signals each containi... | 04/22/2008 |
| 7356052 | Overhead handling method and system for high order data streams A method for fast and economic handling of overhead bytes of an incoming high order data stream to form a corresponding outgoing high order data stream, the method comprising a) presenting the incoming high order data stream as a plurality of N component data stream... | 04/08/2008 |
| 7352781 | Dual backplane rate, triple OC3 service unit A system for intercommunicating data traffic provides the capability to connect external interfaces that use one third or less of the OC3 bandwidth capacity in a reduced bandwidth mode that reduces system cost, while automatically switching to the full bandwidth mod... | 04/01/2008 |
| 7352780 | Signaling byte resiliency A method and system for providing signaling byte resiliency across a telecommunications network. Embodiments of the invention create copies of original signaling bytes and transports the copies in addition to the original signaling bytes. Testing is performed at eac... | 04/01/2008 |
| 7349450 | Multi-stage high speed bit stream demultiplexer chip set having switchable master/slave relationship A bit stream demultiplexer that couples a high-speed bit stream media to a communication Application Specific Integrated Circuit (ASIC). The bit stream multiplexer performs its demultiplexing function staged within at least two integrated circuits. The first Integra... | 03/25/2008 |
| 7346082 | High-speed serial bit stream multiplexing and demultiplexing integrated circuits A multiple bit stream interface interfaces a first transmit data multiplexing integrated circuit and a second transmit data multiplexing integrated circuit. The multiple bit stream interface includes an interface plurality of transmit bit streams each of which carri... | 03/18/2008 |
| 7342520 | Method and system for multilevel serializer/deserializer A serial bit transparent data transferring technique eliminating the bit ambiguity problem of the standard time-division multiplexing/demultiplexing architecture without introduction of any extra latency. A serializer multiplexer converts input parallel data words i... | 03/11/2008 |
| 7327767 | Synchronous transfer mode-256 adder/dropper A synchronous transfer mode (STM)-256 adder/dropper which provides a communication path between STM-64 optical channels in an apparatus of multiplexing STM-64 optical channels into STM-256 electrical signals, is provided. The STM-256 adder/dropper transmits STM sign... | 02/05/2008 |
| 7327689 | Data processing equipment with multi-function trace message processor A data processing equipment having an input to receive an input stream of data frames. The data frames contain a repeating trace message, each instance of the trace message being divided in fragments distributed over a series of data frames. The data processing equi... | 02/05/2008 |
| 7324563 | Method and apparatus for transporting a SDH/SONET client signal as a service SDH/SONET signals are transported as a service including payload and overhead information by mapping associated payload data or information and selected associated overhead data or information of at least one SDH/SONET client signal to be transported into a SDH/SONE... | 01/29/2008 |
| 7321600 | System, method, and article of manufacture for initializing a communication link using GFP data frames A system and a method for initializing a communication link for transmitting a data stream from a first computer through a synchronous optical communication network to a second computer are provided. The method includes transmitting a first request message in a firs... | 01/22/2008 |
| 7321603 | Method and system for reducing bit error rate in a high-speed four to one time domain multiplexer Method and system for reducing bit error rate (BER) in a high-speed four-to-one time domain multiplexer are disclosed. In one embodiment of the present invention, a keep-alive current is employed in the latches of a four-to-one multiplexer in order to minimize the B... | 01/22/2008 |
| 7321558 | Method and apparatus in a computer network A method and the corresponding apparatus for multi-plexing data flows from a number of transmission units. In the method signals are sent from the transmission units and the signals are detected at inputs of a switching unit. Signals, which are detected at a point o... | 01/22/2008 |
| 7305013 | Handling traffic in a synchronous communication network A method for enabling communication between synchronous network elements, which is adapted to support dynamic application of various types of changes, such as adding a new channel, to an aligned group of virtually concatenated channels carrying communication traffic... | 12/04/2007 |
| 7305014 | Synchronous system bus A flexible and expandable system bus for connecting traffic mapping devices to SONET/SDH framing devices. The system bus passes control signals generated by a master device to multiple tributaries to orient them relative to a SONET/SDH frame. These control signals o... | 12/04/2007 |
| 7298744 | Method and apparatus for centralized processing of contiguously and virtually concatenated payloads A method and apparatus for processing at least two types of payloads received at varying intervals in a communications network using a single processing path is provided. The two types of payloads may include virtually and contiguously concatenated payloads accordin... | 11/20/2007 |
| 7295554 | Word Multiplexing of encoded signals into a higher bit rate serial data stream A method of data communication that includes receiving a plurality of 8b/10b encoded data streams. The method also includes multiplexing, on a word by word basis, each of the plurality of data streams and forming a new encoded data stream. The method also includes g... | 11/13/2007 |
| 7289448 | Path engine for optical network A method and system for selecting ring paths in service provisioning on optical networks including a plurality of interconnected rings. The method includes: receiving a request to provision a service between a first end point and a second end point in the optical ne... | 10/30/2007 |
| 7283527 | Apparatus and method of maintaining two-byte IP identification fields in IP headers A method, system and apparatus for maintaining a two-byte identification field of IP headers when a Gigabit Ethernet is in use are provided. Since the IP identification field is of two bytes, there is a limited number of identification numbers that may be used. Due ... | 10/16/2007 |
| 7277459 | Data transmission in an SDH network A method for the transmission of data in a synchronous digital hierarchy (SDH) network comprising the steps of transmitting to a node of the network a form of data signal from outside the network, converting the signal into a to a virtually concatenated information ... | 10/02/2007 |
| 7277447 | Onboard RAM based FIFO with pointers to buffer overhead bytes of synchronous payload envelopes in synchronous optical networks An on-chip RAM FIFO (first-in-first-out) buffer for storing SPE overhead bytes wherein each entry of the RAM FIFO stores (1) a byte of the SPE overhead; (2) an indication of which byte of the SPE overhead is currently stored in that entry; and (3) an indication of w... | 10/02/2007 |
| 7277452 | Signalling TDM channel changes A method of updating a lookup table associated with a TDM transmit unit which is coupled to a packet network to receive data therefrom, the lookup table mapping packet network contexts to TDM channels. The method includes priming a controller with data for updating ... | 10/02/2007 |
| 7266133 | Methods and apparatus for statistical multiplexing with distributed multiplexers The present invention provides methods and apparatus for statistical multiplexing of a large number of data streams. A plurality of encoders are associated with each first stage multiplexer. Bandwidth allocation among all encoders is controlled by a second stage mul... | 09/04/2007 |
| 7257117 | Mapping arbitrary signals A synchronizer/de-synchronizer maps continuous format signals of an arbitrary rate into frames of pre-selected single common rate, such as SONET frames, with no bits changed and very little jitter or wander added. In this way, the continuous format signal may be car... | 08/14/2007 |
| 7254145 | Data transmission apparatus and a path control method thereof A data transmission apparatus using a virtual concatenated path in an SDH transmission system is capable of engaging one or more extra paths by an automated sequence execution to meet a traffic requirement that is higher than usual but up to a maximum speed of a use... | 08/07/2007 |
| 7254207 | Method and apparatus for transmitting and recieving multiplex tributary signals A method and apparatus are provided for transmitting and receiving a plurality of individual tributary signals in multiplex form via a common line. At the transmitting end, the tributary signals, each of which has a similar initial frequency, are converted into a co... | 08/07/2007 |
