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9001712 Transmit signal cancelation apparatus and methods  
Apparatus and methods disclosed herein implement an RF receive-band filter at a receive chain input of a wireless base station with a co-located transmitter and receiver. The RF receive-band...
8923145 Method and system for validating service information (SI) and program specific information (PSI) in broadcast technologies  
A method and system for validating SIPSI of a broadcast table in an electronic device is provided. The method includes receiving a first cache signature and retrieving a second cache signature...
8843559 Modifying payloads of digital streams for digital conferencing  
Using switching technologies to duplicate packets of a digital stream (e.g., digital video stream) sent from one workstation to multiple recipient workstations, where the switching technologies...
8837651 Apparatus and method for estimating a channel in broadband wireless access system  
An apparatus and a method for estimating a channel in a broadband wireless access system. A receiving apparatus includes a first channel estimation filter having a tap coefficient which is...
8826093 Power saving method for coded transmission  
Conserving power for coded transmissions comprises ceasing to process parity packets once associated data packets are deemed correct or corrected. Once data packets are deemed correct or...
8811241 Coexistence of plural wireless communication transceivers in close proximity  
A communication device has a controller operatively connected to at least a first transceiver and a second transceiver, wherein the first transceiver receives signals on one or more channels...
8797575 Dynamic control of packet filtering period  
A communication control apparatus including: a count portion that counts the number of received data; and a discard portion that is provided at an upstream side of a control portion on a...
8787218 Dynamic establishment of virtual circuits multisegment pseudowires  
The present invention provides a technique for automatically establishing a virtual circuit from one edge device to another through a core network. The virtual circuit may comprise one or more...
8750174 Dual carrier separation  
Disclosed are various embodiments providing carrier separation to effectuate a dual carrier operation of a wireless communication device. Processing circuitry may acquire a single carrier signal...
8681668 Methods and apparatus for transmitting multicast traffic in a data network  
A method including receiving in a first network interface of a router a first request for a first type of multicast traffic in a first multicast routing protocol, storing in the router a second...
8681665 Transceiver filter and tuning  
A radio transceiver including a transmitter and a receiver. A filter coupled to an output of the transmitter, the filter has one or more inductors and one or more capacitors, where the filter is...
8659986 Crosstalk cancellation for a multiport ethernet system  
A transceiver system is disclosed. The transceiver system comprises a first transceiver physical layer circuit (PHY) having a first plurality of channels and a second transceiver PHY disposed...
8638836 Transmitter signal injection compensation  
A transceiver mitigates signal leakage into a receive path from a transmit path. A subtraction circuit determines a difference between a receive signal and a compensation signal to produce a...
8630850 Signal processing method, apparatus and program  
In one embodiment, a signal processing method is disclosed. The method can perform filter processing of convoluting a tap coefficient in a first signal sequence to generate a second signal...
8619897 Method and apparatus of frequency domain echo canceller  
A frequency-domain based echo and NEXT canceller is provided. The canceller uses log2 encoding to precondition the error signal representing the echo. An improved gradient constraint is applied on...
8600038 System and method for echo cancellation  
An echo canceller for improved recognition and removal of an echo from a communication device. The echo canceller can dynamically reduce echo using an improved energy estimator and an improved...
8588069 System and method for analyzing the performance of multiple transportation streams of streaming media in packet-based networks  
A packetized streaming media delivery network carries many “streams” of differing media content. They often are from multiple sources and of different media types. The invention consists of a...
8565105 Method and system for ethernet switching, conversion, and PHY optimization based on link length in audio/video systems  
Aspects of a method and system for Ethernet Switching, Conversion, and PHY optimization based on link length in Audio/Video Systems are provided. In this regard, the length of a link over which a...
8559532 Method and system for detecting non-linear devices  
To assist with the detection of unfiltered device(s), a system observes how the received noise changes between two links as the transmit signal is changed. Harmful unfiltered nonlinear devices...
8542142 Interleaved analog to digital converter with reduced number of multipliers for digital equalization  
A digital equalizer with a reduced number of multipliers for correction of the frequency responses of an interleaved ADC is disclosed. An exemplary interleaved analog to digital converter with...
8515055 Adaptive filtering with flexible selection of algorithm complexity and performance  
An adaptive filter configured to use multiple algorithm species that differ in the quality of echo suppression and respective burdens imposed on the computational resources of the host...
8447595 Echo-related decisions on automatic gain control of uplink speech signal in a communications device  
A method for performing a call between a near-end user and a far-end user, which includes the following operations performed during the call by the near-end user's communications device. Automatic...
8411603 Method and system for dual digital microphone processing in an audio CODEC  
Methods and systems for dual digital microphone processing in an audio CODEC are disclosed and may include demultiplexing one or more received time-multiplexed digital audio signals from one or...
8369512 Device and method for detecting a divergence of an adaptive system and use of such a device for the detection of a divergence of a digital filter  
A divergence detection device for an adaptive system comprising means for calculating the energy of an input signal of the system, means for calculating the energy of an output signal of the...
8364298 Filtering application sounds  
A system, method, and program product are provided for filtering sound from a selected application on a computer without interrupting voice communications on the computer. The method comprises:...
8300561 Methods and apparatus for canceling distortion in full-duplex transceivers  
Methods and apparatus for canceling distortion in full-duplex transceivers are disclosed. Some example methods to reduce distortion in a full-duplex transceiver include generating a first digital...
8300802 Adaptive filter for use in echo reduction  
Methods and corresponding systems in an adaptive filter include calculating a signal estimator output using filter coefficients, and calculating an error signal. Next, a coefficient threshold is...
8265929 Embedded code-excited linear prediction speech coding and decoding apparatus and method  
Provides is an embedded code-excited linear prediction speech coding/decoding apparatus and method that can deal with the capacity change of speech transmission channel by modeling an error signal...
8254490 Reducing transmit signal components of a receive signal of a transceiver using a shared DAC architecture  
Embodiments of a method and apparatus of reducing transmit signal components of a receive signal of a transceiver are disclosed. One embodiment of an apparatus includes a transceiver that...
8208462 Line driver for an adaptive hybrid circuit  
A second output transmission signal (“TX2”) added to a line driver is a scaled version of the main output transmission signal (“TX1”). TX2 is scaled from TX1 by a variable scale factor K. An...
8195135 Mobile communication device and audio processing method thereof  
A mobile communication device capable of communicating with a remote communication device includes a communication unit, a microphone, an input unit, a control unit, and a switching unit. The...
8190114 Frequency-dependent filtering for wireless communications transmitters  
A method of transmitting information in a wireless communications system can be provided by selectively applying filtering to transmission of a carrier signal of a first band of frequencies of a...
8125934 System and method for synchronization signal detection and recovery from false triggers  
A system and method for detecting a synchronization (sync) signal in a communication signal are disclosed. A received communication signal is stored in a memory and portions thereof are read from...
8121057 Wide area voice environment multi-channel communications system and method  
A system and method is described for establishing a homogenized communications infrastructure that enables a variety of disparate communication devices to communicate transparently with each other...
8073133 Echo canceler and echo canceling method  
An echo canceler has an adaptive filter that generates an echo replica signal from a far-end signal. The filter coefficients of the adaptive filter are updated according to a residual error...
8045492 Dynamic establishment of virtual circuits using multi-segment pseudowires  
The present invention provides a technique for automatically establishing a virtual circuit from one edge device to another through a core network. The virtual circuit may comprise one or more...
8031786 Method and system for improving channel estimation in a communications network  
The present invention discloses a method for improving channel estimation in a communications network. The method comprises estimating first channel characteristics of first sub-carriers carrying...
8027279 Echo cancellation  
Embodiments related to echo compensation have been described and depicted.
8023641 Spectral domain, non-linear echo cancellation method in a hands-free device  
Disclosed is a non-linear echo canceller and method for cancelling echo during full duplex communication in a hands free communication system. An input signal from a far-end talker and an input...
8014879 Methods and systems for adaptive control  
A digital controller includes a sampling component that samples an output signal from a system and an input signal to the system at a first sampling rate, which is at least equal to a...
7933196 Method and apparatus for canceling channel interference  
An apparatus for channel interference cancellation includes a first interference-cancellation module and a first cancellation-signal generating circuit. The first interference-cancellation module...
7920491 System and method for split isolation in radio frequency electronics  
A system and method for designing a full duplex communications transceiver to enable a reduction in isolation between a transmit signal and a receive signal at a diplexer is disclosed. An RFE...
7898992 Network apparatus with shared coefficient update processor and method thereof  
A network apparatus with a plurality of transport ports and a shared coefficient update processor is proposed. Each of the plurality of transport ports includes a PHY module. The coefficient...
7881459 Acoustic echo canceller using multi-band nonlinear processing  
An echo canceller (106) can include a first multi-band filter (152) which receives a first input signal (108) and generates a first plurality of sub-band signals (110, 111, 112), and a second...
7843859 Analog echo canceller with filter banks  
A method and system are described for canceling an echo signal in analog domain with adaptive filters working in digital domain. In one embodiment, a system includes an analog-to-digital converter...
7835387 Methods and systems for digitally processing data signals  
Digital signal processing based methods and systems for receiving electrical and/or optical data signals include electrical receivers, optical receivers, parallel receivers, multi-channel...
7813498 Full-duplex communication device and method of acoustic echo cancellation therein  
The invention provides a full-duplex communication device. In one embodiment, the full-duplex communication device comprises a first adaptive filter, a second adaptive filter, a channel decoupling...
7804916 Detector for detecting a frequency-shift keying signal by digital processing  
A frequency-shift keying (FSK) signal detector includes a binarizing circuit for receiving an FSK signal and expressing amplitude of the FSK signal in binary; a correlator for receiving the FSK...
7769186 System and method facilitating acoustic echo cancellation convergence detection  
A system and method facilitating acoustic echo cancellation convergence detection is provided. The invention includes an acoustic echo cancellation convergence detector having a center clipping...
7756480 System and method for transmitter leak-over cancellation  
The present disclosure relates generally to systems and methods for transmitter leak-over cancellation. In one example, a method includes transmitting a signal via a transmit chain in a wireless...

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