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7602815 Using network time protocol in voice over packet transmission  
One or more methods and systems of effectively transmitting voice and voice band data from one node to another are presented. In one embodiment, the system comprises an NTP time server generating...
7596155 Method and apparatus for packet error detection  
The invention provides a packet error detecting method for a PCI express bus link. When a start framing symbol of a packet appears at the PCI express bus link, the start framing symbol is ignore if...
7593427 Method and apparatus for automatic detection and provisioning of DS3 frame formats  
Methods and apparatus for automatically detecting the frame format of a data signal and automatically provisioning a port based on the detected frame format are disclosed. According to one aspect...
7577166 Programmable logic devices with multi-standard byte synchronization and channel alignment for communication  
A programmable logic device (“PLD”) includes communication interface circuitry that can support any of a wide range of communication protocols, including Packet Over Sonet (“POS-5”) and...
7570667 System, apparatus, and method for increasing resiliency in communications  
A transmitting system inserts runt abort packets in an outgoing data stream during idle time inter-frame time fill. The runt abort packets cause the receiving system to synchronize itself to the...
7565140 Device, system and method of processing received wireless signals  
Embodiments of the present invention provide a method, apparatus and system of processing received wireless signals. The apparatus, according to some demonstrative embodiments of the invention, may...
7564875 Techniques to map and de-map signals  
Briefly, a system that maps SONET/SDH data to an OTN frame using justification commands. Briefly, a system that de-maps an OTN frame into SONET/SDH data using justification commands.
7555014 Method for contention free traffic detection  
The invention discloses a method for detecting priority of data frames comprising the steps of extracting (S 1 ) a bit pattern from a predetermined position in a frame, comparing (S 2, S 3 ) said...
7545853 Method of acquiring a received spread spectrum signal  
A method of acquiring a received spread spectrum signal, especially a GPS signal, is disclosed together with a spread spectrum signal receiver and a cellular telephone incorporating such a...
7505485 Methods and systems for start code emulation prevention and data stuffing  
Methods and systems provide approaches to start code emulation prevention at a granularity higher than the bit level. By operating at a level other than the bit level, processing capability...
7460479 Late frame recovery method  
Method of processing a transmitted encoded media data stream is received. If a data element arrives prior to, or at, a predetermined playout deadline, the data element is decoded, the media...
7450616 Area efficient serializer implementation for small functional-to-serial clock ratios  
This invention adds one extra bit which can be viewed as a shadow of most significant bit of the serial register. This extra register bit is referred as buffer_flop. When the receive data is coming...
7450038 Determining oversampled data to be included in unit intervals  
In some embodiments, a chip includes sampling circuitry to produce oversampled data from a received signal, and logic to determine which of the oversampled data are to be part of different unit...
7444144 Initial cell search in wireless communication systems  
A method and system for performing initial cell search is disclosed. Step 1 processing is preformed to detect a peak primary synchronization code (PSC) location (i.e. chip offset or chip location)....
7418036 Method and circuit for timing pulse generation  
In a method and a circuit for timing pulse generation, a frame pulse of a corresponding system is masked when an alarm signal of either a working system or a protection system is received, a...
7406143 Transceiver having a jitter control processor with a receiver stage and a method of operation thereof  
The present invention provides a transceiver couplable to a communications network having a jitter control processor and method of operating the same. In one aspect of the present invention, the...
7369578 Digital processing of SONET pointers  
In a method of estimating a bit rate (f 1 ) of a digital signal conveyed through a SONET network between an originating node and a terminating node, the digital signal received by the originating...
7346079 Methods and structures of multi-level comma detection and data alignment in data stream communications  
Methods and structures of performing multi-level comma detection and alignment on an unaligned data stream. Each string of N consecutive bits in the unaligned data stream is monitored for a...
7336666 Data transport for bit-interleaved streams supporting lane identification with invalid streams  
A method for generating a channel stream. The method generally comprises the steps of (A) transforming a plurality of data streams, wherein every data stream entering the channel stream experiences...
7330489 Distributed data synchronization apparatus and method  
Disclosed is a method and apparatus for synchronizing data in a number of separate integrated circuits. In one embodiment, the apparatus includes a first integrated circuit configured to receive...
7308004 Method and apparatus of multiplexing and demultiplexing communication signals  
A method and apparatus for multiplexing and demultiplexing communication signals are described herein. In one embodiment, an apparatus includes first sample logic to sample a plurality of...
7292608 Method and apparatus for transferring synchronous optical network/synchronous digital hierarchy(SONET/SDH) frames on parallel transmission links  
The present invention relates to methods and systems for transferring SONET/SDH frames between nodes by mapping the SONET/SDH frames onto individual channels of data and transferring the SONET/SDH...
7245640 Packet origination  
A method, apparatus, and system for originating a packet.
7243253 Repeating switching of a cross-connect and a timing source in a network element through the use of a phase adjuster  
A method and apparatus for enabling repeated switching of a cross-connect and a timing source in a network element through the use of a phase adjuster. In one embodiment, a traffic card includes an...
7227876 FIFO buffer depth estimation for asynchronous gapped payloads  
A desired FIFO buffer fill level is continuously derived during mapping or demapping of plesiosynchronous data signals into synchronized data signals, or vice-versa. One of j predefined integer...
7194059 Method and apparatus for skip-free retiming transmission of digital information  
A skip-free retiming system and method for transmission of digital information in a plesiochronous data communication system is described. The system is capable of supporting an unlimited number of...
7180913 Transparent error count transfer method and apparatus  
It is proposed that currently unused portions of transport overhead in frames sent on a high-speed outgoing channel be used to carry error count information from each of four low-speed input...
7180901 System and method using a packetized encoded bitstream for parallel compression and decompression  
A system and method are disclosed for parallel compression and decompression of a bitstream. For compression, the bitstream is separated into a plurality of components, and the components are...
7170421 Control apparatus, controlled apparatus, and remote control system and remote control method using these apparatuses  
In one aspect of this invention, a control unit generates a frame having control data, and transmits it to a controlled apparatus via a transmission/reception unit or the like at a predetermined...
7145960 Transmitter apparatus and communication system employing the same  
A transmitter apparatus has a modulator for modulating a carrier wave to produce a modulated wave having communication data superimposed thereon and a transmitter for transmitting the modulated...
7139309 Process to expand data density  
A process for transmission of information between at least two devices comprises: generating a serial message coded by means of a time sequence of binary transitions called bits; reducing the time...
7133647 Chiprate correction in digital transceivers  
A transceiver for a code division multiple access communication system comprises a receiver to receive coded information signals and a transmitter to transmit coded information signals. A local...
7085293 Scaleable transport of TDM channels in a synchronous frame  
A method and system for processing communication at a node in a communication system makes use a series of fixed-length data frames in which multiple data streams are multiplexed. Each of the data...
7079553 Method and system for embedding a first clock signal phase within a second signal  
A technique for embedding a first clock phase within a second signal is described. In one embodiment, the invention comprises a method of embedding a phase of a first signal within a second signal...
7079485 Multiservice switching system with distributed switch fabric  
A digital switching system comprises: (a) a line card layer containing a plurality of real or virtual line cards; (b) a switch card layer containing a plurality of real or virtual switch cards; and...
7076392 Test bit-stream generator and method for decoders  
The present invention provides a test bitstream generator and method for generating test bitstreams to test a bitstream decoder that is arranged to decode bitstreams generated in accordance with a...
7068685 Method and arrangement for enhancing the handling of TTI identifier  
The invention relates to a method for finding frame alignment and accepting and monitoring TTI identifiers contained in frames in an SDH system. Advantageously the method according to the invention...
7050439 Method for performing discontinuous transmission in an asynchronous transfer mode  
A method for performing discontinuous transmission in an asynchronous transfer mode is described, wherein a downlink transmission of an ATM cell is performed each time a predetermined number of...
7042913 Method and system for writing data to memory elements  
A technique for provisioning cross-connects in network switching environment includes writing a first set of data into a first memory element during a first time interval and writing a second set...
7042840 Method and apparatus for summing asynchronous signal samples in a cable television digital return path  
A method and apparatus for digitizing multiple data streams having different clocks spreads an error due to clock drift is spread across many clock cycles in extremely small amounts. To combine two...
7023942 Method and apparatus for digital data synchronization  
Synchronization and desynchronization of a data signal transported in a synchronous frame across a synchronous communications network, such as SONET/SDH, reduces waiting-time jitter. A timing...
7007106 Protocol and method for multi-chassis configurable time synchronization  
Systems and methods are disclosed for time synchronization of operations in a control system. Synchronization networks and devices are provided for transferring synchronization information between...
7003407 Circuit for detecting and formatting data frames  
The invention concerns non-contact smart cards and, more particularly in such cards, a circuit for detecting data frames and providing them with a parallel format for their processing. The...
6999480 Method and apparatus for improving data integrity and desynchronizer recovery time after a loss of signal  
An apparatus and corresponding method for preventing data loss in network devices is disclosed. The present invention monitors an incoming data stream to a network device, or devices, and in the...
6985499 Precise network time transfer  
The invention comprises a method and apparatus for reducing uncertainty in timing on the network. The uncertainty in receive buffers is removed by time stamping the arriving packets before sending...
6975649 Hyper-concatenation across independent pointer processors  
A concatenated signal carrying an arbitrary mix of concatenated data traffic is split and transported across a network between a start node and an end node through a hyper-concatenated connection...
6970115 Cycle slip framing system and method for selectively increasing a frame clock cycle to maintain related bits within the same parallel-output frame of a deserializer  
A system and method are provided for synchronizing a frame of related bits output from a deserializer to the related bits serially fed to the deserializer. Synchronization is achieved by overcoming...
6959015 Method and apparatus for aligning multiple data streams and matching transmission rates of multiple data channels  
The invention provides a novel scheme to align data streams across multiple transmission channels and match multiple transmissions with one receiving rate. The channel aligning aspect of this...
6959008 Alignment of TDM-based signals for packet transmission using framed and unframed operations  
A method and apparatus for alignment of TDM-based signals for packet transmission using framed and unframed operations are described. In an embodiment, a line card in a network element includes a...
6882662 Pointer adjustment wander and jitter reduction apparatus for a desynchronizer  
An apparatus for reducing the effects of pointer adjustments, wander, and jitter during desynchronization of a non-uniformly gapped data stream from a payload of a synchronized signal is disclosed....
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