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7386008 Method and apparatus for converting data packets between a higher bandwidth network and a lower bandwidth network having multiple channels  
A method and apparatus for converting packetized data received from a broadband network to a multi-channel payload network having a narrower bandwidth is disclosed. The method includes converting a...
7379477 Apparatus and method for efficiently transmitting broadcasting channel utilizing cyclic delay diversity  
Disclosed are an apparatus and a method for efficiently transmitting a broadcasting channel by means of cyclic delay diversity in an OFDM mobile communication system. The method comprises the steps...
7376148 Method and apparatus for improving voice quality in a packet based network  
Some embodiments adaptively adjust to the current call load in a packet based virtual circuit to minimize the delay experienced by the first packets of any talk spurt for a particular active call....
7376102 Erased frame and idle frame suppression in a wireless communications system  
A method of reducing loading on backhaul communications links in a wireless communications system suppresses a portion of the upward flow of frame information for idle and/or erased frames in...
7369635 Rapid discrimination preambles and methods for using the same  
A system, method and program are disclosed for achieving rapid bit synchronization in low power medical device systems. Messages are transmitted via telemetry between a medical device and a...
7366270 PLL/DLL dual loop data synchronization utilizing a granular FIFO fill level indicator  
A dual loop (PLL/DLL) data synchronization system and method for plesiochronous systems is provided. In particular, a system and method for dual loop data synchronization using a granular FIFO fill...
7366224 System and method for the detection of presence of a signal and its synchronization, for a frequency hopping system working in a disturbed environment  
A method and device are disclosed for the detection and synchronization of a signal in a frequency-hopping system. The method has a step, for each frequency F( 1 ) . . . F(M), of selecting the K...
7359379 Managing data in a subtended switch  
A technique for provisioning cross-connects in network switching environment includes receiving a portion of the an input data stream including having header data and the payload data, the payload...
7349510 Apparatus for data recovery in a synchronous chip-to-chip system  
An apparatus that reduces sampling errors for data communicated between devices uses phase information acquired from a timing reference signal such as a strobe signal to align a data-sampling...
7349408 Method and apparatus for handling out of inverse multiplexing for asynchronous transfer mode frame error conditions  
Methods and apparatus are disclosed for handling transient anomalies in a communications or computer device or system, such an inverse multiplexing for ATM (“IMA”) device. Such transient...
7333580 Pipelined parallel processing of feedback loops in a digital circuit  
Digital circuits and methods for designing digital circuits are presented. In an embodiment, a number of bits (B) of a bit-stream to be processed in parallel by a digital circuit is selected. A...
7333519 Method of manually fine tuning audio synchronization of a home network  
A method is provided for manually synchronizing the playback of a digital audio broadcast on a plurality of network output devices. The method is applicable for use with methods such as those that...
7324562 Method and apparatus for introducing differential delay between virtually concatenated tributaries  
In one embodiment, the invention is an apparatus for testing differential delay correction of network elements using virtual concatenation. The apparatus includes a first PRBS (pseudo-random bit...
7321403 Video signal transmitting/receiving system  
In a transmitting section for a video signal transmitting/receiving system for transmitting digital video signals using a plurality of transmission channels, video guard band signals are inserted...
7292610 Multiplexed data producing apparatus, encoded data reproducing apparatus, clock conversion apparatus, encoded data recording medium, encoded data transmission medium, multiplexed data producing method, encoded data reproducing method, and clock conversion method  
A multiplexed data producing apparatus which multiplexes N (integer) pieces of object data in which one of video data, audio data, and digital data is multiplexed to produce one piece of...
7274715 Method and apparatus for automatic delay compensation in space diversity radio transmissions  
A method and apparatus is described for the automatic delay compensation in space diversity radio transmissions. The method includes the steps of: a) receiving a first analog signal and a second...
7269141 Duplex aware adaptive playout method and communications device  
A duplex aware adaptive playout method includes detecting a packet communication mode as either a full-duplex mode or a half-duplex mode, calculating a playout delay for a current packet based on...
7245637 Methods and apparatus for suppressing signaling tones in telephony signal  
In some embodiments, a method includes detecting a tone in each data frame of a sequence of telephony signal data frames. A first data frame of the sequence of telephony signal data frames may be...
7245608 Codec aware adaptive playout method and playout device  
A codec aware adaptive playout method estimates playout delays for a current packet based on a loss mean opinion score (LMOS), a delay mean opinion score (DMOS), and a mean mean opinion score...
7224716 Communication methods and apparatus employing spread spectrum techniques and doppler-tolerant polyphase codes  
A communication apparatus and method that includes generating a series of successive spread-spectrum signals formed through the concatenation of a direct sequence spread spectrum code with a...
7212598 Data buffer-controlled digital clock regenerator  
A clock regeneration scheme for a digital communication receiver has a first-in, first-out (FIFO) storage buffer into which received data is clocked in accordance with an input clock signal and a...
7209531 Apparatus and method for data deskew  
A deskew circuit utilizing a coarse delay adjustment and fine delay adjustment centers the received data in a proper data window and aligns the data for proper sampling. In one scheme, bit state...
7193964 Hitless protection switching  
The invention provides a method and apparatus for providing hitless protection switching in a transmission systems which support a standardized implementation of virtual concatenation. A switching...
7190703 Method and device for synchronizing base stations of a mobile communications network  
Method and system for synchronization of base stations in a mobile communications network, in particular for the purpose of a seamless handover, time information is transmitted, possibly on...
7187742 Synchronized multi-output digital clock manager  
A digital clock manager is provided. The digital clock manager generates an output clock signal that causes a skewed clock signal to be synchronized with a reference clock signal. Furthermore, the...
7187697 Method and system for delivering MPEG video over bursty communication channels  
A system for compensating for timing violations of time restricted data being transmitted over a bursty communication channel. The system includes a retriever, coupled to a buffer, for retrieving...
7187685 Multi-module switching system  
A multi-module switching system comprising at least two switching modules adapted for receiving data packets from at least one input adapter and transmitting the data packets to at least one output...
7177306 Calculation of clock skew using measured jitter buffer depth  
A system and method to measure the clock skew between transmitting and receiving devices operating with independent clock sources over a packet network is described. To provide adaptive playout in...
7170907 Dynamic alignment for data on a parallel bus  
A method, apparatus, and computer-readable media for aligning n data signals received over a parallel bus, each of the n data signals comprising a training pattern, wherein n is at least two,...
7161963 Frame multiplexer  
A frame-interleaving system may transmit the same data in two data streams. Frames may become fragmented switching between two data streams. The reliability of a frame-interleaving system may be...
7145908 System and method for reducing jitter in a packet transport system  
A system and method for reducing jitter in a packet transport system. In one embodiment, the system includes ( 1 ) a cell status subsystem that determines whether a cell is a data cell or a control...
7136399 Latency handling for interconnected devices  
A data processing system comprises a cluster of devices ( 16 ) interconnected for the communication of data in streams, particularly digital audio and/or video data. One of the devices ( 10 ) is a...
7123673 System and method for transmission of digital information of varying sample rates over a synchronous network  
A system for transmitting digital information over a synchronous network includes at least one source node and at least one sink node both coupled with the synchronous network. The source node...
7123630 Bearer integration method and apparatus for the bearer integration method  
A bearer integration method for integrating a plurality of bearer services into a wireless channel by performing time-division multiplexing/demultiplexing is provided, in which bearer service data...
7120171 Packet data processing apparatus and packet data processing method  
In real time communication, long interruption of a media data signal caused by underflow or overflow of a buffer is reduced. A monitoring unit 35 a monitors a state of the buffer 34 periodically....
7116639 System and method for determining network discrete utilization  
To evaluate a communications network, a plurality of network evaluation signals, or probative test packets, are selectively sent and received through the network. Responsive to these evaluation...
7110446 Method and apparatus for reducing effect of jitter  
Method and apparatus for reducing effect of jitter is described. More particularly, one or more taps of a delay line are selected for a reference clock signal. These selected taps each have an...
7096487 Apparatus and method for combining realtime and non-realtime encoded content  
Methods for slice-based encoding of program guides and user interfaces. The program guides include multiple video streams for picture-in-picture and other applications. A method for encoding the...
7096132 Procedure for estimating a parameter of a local maxima or minima of a function  
A method of and system for estimating a parameter of a local maxima or minima of a function. An interpolated local maxima or minima is determined. An interpolation offset is then derived,...
7095817 Method and apparatus for compensating for timing variances in digital data transmission channels  
A high-speed digital interface circuit for use with an N bit digital data signal is disclosed. The circuit comprises a source device that initially receives the N bit digital data signal, and a...
7089440 Skew compensation for a multi-agent shared bus  
A data processing system includes first, second, and third agents connected to a shared bus. The third agent is able to receive information via the shared bus from the first agent or from the...
7076014 Precise synchronization of distributed systems  
A method for synchronizing a plurality of sub-systems, comprising the steps of measuring a relationship between a divider associated with each of the plurality of sub-systems; and adjusting a phase...
7076013 Clock synchronization device  
A clock synchronization device is disclosed which optimizes clock skew without increasing the number of unit delay cells by using an auxiliary delay circuit when a clock signal of ultra low...
7058069 Delay variation buffer control technique  
A delay variation buffer controller allowing proper cell delay variation control reflecting an actual network operation status is disclosed. A detector detects an empty status of the data buffer...
7054331 Multi-lane receiver de-skewing  
A technique for de-skewing a group of serial data signals respectively outputted from a group of data lanes includes simultaneously feeding a test signal to inputs of the group of data lanes and...
7054205 Circuit and method for determining integrated circuit propagation delay  
A circuit and method is provided for determining the delay of an integrated circuit common associated with chip-to-chip variations in the manufacturing process, changes in operating voltage, and...
7050467 Digital-to-phase-converter  
A digital-to-phase or digital-to-time-shift converter ( 100 ) includes a delay line ( 106 ), a multiplexor ( 108 ) and synchronization circuit ( 110 ). In the converter ( 100 ) the clock edges of a...
7046699 Pointer processing and path BIP-8 computation for large concatenated payloads  
A system for performing Bit Interleaved Parity-8 (BIP-8) computation on large concatenated payloads, in a processing node of an optical communications networks. The BIP-8 computation system...
7031306 Transmitting MPEG data packets received from a non-constant delay network  
Transmitting data packets received from a non-constant delay medium includes storing the data packets in a buffer, determining a play-out schedule for the data packets based on timing information...
7023882 Interfacing at least one information stream with at least one modulator  
An interface is provided for interfacing at least one information stream with at least one modulator in the headend or hub of a broadband communications system. The interface allows for separating...
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