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7606244 |
Gateway with voice
In one aspect of the present invention, a network gateway is configured to facilitate on line and off line bi-directional communication between a number of near end data and telephony devices with...
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7599458 |
System and method to reduce jitter
One disclosed embodiment may comprise an interpolation system that includes an interpolator that interpolates between a selected phase from a preceding cycle and a selected phase from a current...
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7599401 |
Transmission device and transmission method
A GI insertion section 105 inserts a guard interval into transmission data. Delay addition sections 107 - 1, 107 - 2 set a delay time in the transmission data. An arrival time calculation...
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7599382 |
Serial transceiver and method of transmitting package
A serial transceiver transmits at least one package of a data link layer and includes at least one channel including at least one transmitting module and at least one receiving module, a generating...
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7590152 |
Router-based monitoring of EF-on-EF jitter
A system for monitoring EF-on-EF jitter in a network node having an EP output queue into which EF packets are entered comprises a first counter that counts the packets entering the queue and also a...
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7590151 |
Method and apparatus for aligning time references when separated by an unreliable data packet network
A time control mechanism accepts samples of time (true or otherwise) over a network, and enables dynamic compensation for random delays of the network in order to maintain the output of a slave...
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7583688 |
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...
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7573907 |
Discontinuous transmission of speech signals
Packets for a discontinuous transmission of a speech signal via a packet switched network may be provided in shorter transmission intervals during an active state and in longer transmission...
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7558868 |
Information processing device and method, recording medium, and program
An information processing apparatus and method, a recording medium, and a program for removing jitter and reducing the delay of the information processing system. A substantial error is produced...
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7551649 |
Transmitting packets of data
Data packet transmission involves transmitting a first data packet from a first station over a network to create a first transmission with the intention of the first transmission being received at...
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7519087 |
Frequency multiply circuit using SMD, with arbitrary multiplication factor
Disclosed is a frequency multiply circuit for outputting an output signal obtained by variably multiplying the frequency of an input signal includes a synchronous delay circuit, a multiplexing...
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7505420 |
Guard section length detecting device and method for orthogonal frequency division multiplexing system receiver
An apparatus for detecting a guard interval length (type) of a transmission symbol among the structure of an orthogonal frequency division multiplexing (OFDM) system receiver, to ensure proper...
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7483443 |
Adaptive queuing for data transmission over a network
Methods and systems for dynamically adjusting the length of delay before playback as a function of the amount of transmission jitter is disclosed, whereby a target error rate is received, error...
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7474147 |
Frequency shift keying signal demodulator method and apparatus
A method and apparatus for a frequency shift keying (FSK) demodulator use a configuration to improve the autocorrelation for better receiver performance. The demodulator uses parallel first and...
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7466723 |
Various methods and apparatuses for lane to lane deskewing
Various methods, apparatuses and systems are described in which a skew delay time between communication lanes is determined. A data transfer path is established which includes two or more...
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7457323 |
Demultiplexer circuit
A demultiplexer circuit includes a first serial-to-parallel conversion circuit for receiving input serial data and for performing serial-to-parallel conversion to output resultant data to parallel...
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7450593 |
Clock difference compensation for a network
A method and apparatus to perform clock compensation for a jitter buffer are described.
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7443889 |
Network or service management system for determining the synchronization between two streams of packets
A network management system for determining the synchronization between two streams of packets transmitted in a transport network measures throughput variations for each of the streams of packets...
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7428286 |
Duty cycle correction apparatus and method for use in a semiconductor memory device
The present invention is directed to a duty cycle correction apparatus that can be implemented in a small size, and is capable of performing a phase lock more rapidly, and reducing the amount of...
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7426221 |
Pitch invariant synchronization of audio playout rates
A method for adjusting audio playback is disclosed. The method includes storing audio packets in a jitter buffer, and playing out the audio packets at a first rate. The method further includes...
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7424026 |
Method and apparatus providing continuous adaptive control of voice packet buffer at receiver terminal
Disclosed is a device, a computer program and a method to receive and buffer data packets that contain information that is representative of time-ordered content, such as a voice signal, that is...
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7406105 |
System and method for sharing a common communication channel between multiple systems of implantable medical devices
A system and method that facilitates multiple systems of communicating devices, i.e., a master device and one or more implantable slave devices, to coexist on a common, e.g., RF, communication...
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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...
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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...
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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....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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