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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...
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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...
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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...
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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...
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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...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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...
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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)....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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7245640 |
Packet origination
A method, apparatus, and system for originating a packet.
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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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