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Patent Searching and Data


Matches 401 - 450 out of 14,267

Document Document Title
WO/2007/109805A3
A method of offering video ringback services includes providing a multimedia ringback media stream in a first system component and receiving a call at an MSC from an originating terminal. The call is directed to a VRBT server. The method...  
WO/2007/140467A2
In a network device 300, a connector module 302 comprises a network connector 304 coupled to the connector module 302 in a configuration that transfers power and communication signals and an application connector 306 that comprises seria...  
WO/2007/139543A1
In a preferred embodiment, the invention is a mobile communication device having a digital signal processor (DSP), a speaker output node, a local audio source, and an analog front-end (AFE), wherein: (1) the DSP receives a first audio si...  
WO/2006/044691A3
Systems and techniques for communication over telephony wireline. A command interface and control device may include a wireline input configured to connect the device to an operative line of a wireline telephony network (such as the PSTN...  
WO/2005/109404A3
In a noise suppresser, an input signal is converted to frequency domain by discrete Fourier analysis and divided into Bark bands. Noise is estimated for each band (85). The circuit for estimating noise includes a smoothing filter having ...  
WO/2007/005206A3
Systems and methods of synchronizing an input signal and an output signal via employing a sampling component that samples a speaker output and a microphone input during a full duplex communication, at a same clock frequency and same exac...  
WO/2006/060441A3
A method and apparatus for isolating transmit and receive signals in a communication system (Fig. 2B) utilizing a common channel (210) for both incoming and outgoing signals. In one embodiment a tuned hybrid or isolation circuit is provi...  
WO/2006/096231A3
A method of adjusting an echo canceller comprises obtaining a first cross-correlation between a far-end signal and an error signal, wherein the error signal is generated by subtracting an output signal of an adaptive filter from a local-...  
WO/2007/124117A1
Various embodiments of the present invention are directed to methods and systems that reduce acoustic echoes in audio signals in accordance with changing conditions at first and second locations that are linked together in a communicatio...  
WO/2007/120734A2
A system and method for reducing or entirely canceling background or environmental noise from a voice transmission from a communications device. A communications device(30), such as a cellular or a voice over internet or voice over packe...  
WO/2007/118583A1
An audio signal decorrelator (100) for deriving an output audio signal (170) from an input audio signal (112) comprises a frequency analyzer (110) for extracting a first partial signal (120) and a second partial signal (122) from the inp...  
WO/2007/117311A2
An xDSL modem apparatus has a port for transmitting and receiving carrier waves and includes a low-pass filter (86), a high-pass filter (94), and a band-pass filter (90). The low-pass filter (86) isolates low-frequency component of a rec...  
WO/2007/109949A1
A method and a device for generating comfort noise in echo cancellation, in which the method includes the steps of: obtaining amplitude of residual echo and absolute value of amplitude of background noise (S20); comparing the amplitude o...  
WO/2007/108850A2
A system and methods for pre-configuring echo cancellers are shown and described. The system includes a storage device for storing one or more settings of the echo cancellation parameters developed during one or more previously establish...  
WO/2006/105055A3
Apparatus, methods, and machine-readable articles of manufacture enable a telephone system (100) to distinguish between actual events and echoes. Events may include conferees' voice and DTMF commands. In selected embodiments, the system ...  
WO/2007/047219A3
Methodologies and structure are provided for use in a communications line that transmit data without plain old telephone service (POTS), or splits the POTS service from the data service, to inhibit oxidation of electrical connections wit...  
WO/2007/102325A1
A recording apparatus by which troublesome operation input by a user can be eliminated and power consumption can be reduced. When a processing section (17) judges that there is a change in an image to be judged, compared with a comparing...  
WO2007062634B1
The aim of the invention, which relates to a method for controlling the adaptive behavior of acoustic echo compensation, is to create a method for controlling the adaptive behavior of acoustic echo compensation that is characterized by i...  
WO/2007/090080A2
A communication apparatus (100) comprising an audio input device (102) adapted to capture a first audio sample, where the first audio sample comprises a noise component. The apparatus further comprises signal processing logic (108) coupl...  
WO/2007/079112A2
A low cost universal network interface device capable of accommodating various terminating devices. The network interface device generally including a base defining an interior cavity, and being further defined by a provider portion and ...  
WO/2007/079074A2
A line module includes a plurality of pivoting insulation displacement connector holders, an insulation displacement connector (IDC) positionable in at least one holder when the holder is in a connected position, and a gel-less jack in e...  
WO/2007/079111A2
A Network Interface Device (NID) component includes a base configured to receive, in a cavity, both a subscriber wire contact and a provider wire contact. The component also includes a cover in movable attachment to the base, the cover i...  
WO/2007/079113A2
A low cost universal network interface device capable of accommodating various terminating devices. The network interface device generally including a base defining an interior cavity, and being further defined by a provider portion and ...  
WO/2007/077536A1
An acoustic echo cancellation device (1) for canceling an echo (e) in a microphone signal (z) in response to a first input signal (s) and a second input signal (m) comprises: - a first combination unit (13) arranged for combining the fir...  
WO/2007/072698A1
Provided is a composite telephone device capable of checking a caller device and performing communication by an optimal communication operation in accordance with the caller device by a communication start instruction. A parent device (1...  
WO/2007/021595A3
A device and method for a full-duplex transceiver is disclosed. The transceiver includes a transmitter DAC coupled to a transmission channel. The transmit DAC converting a digital transmission signal into an analog transmission signal. T...  
WO/2007/062634A1
The aim of the invention, which relates to a method for controlling the adaptive behavior of acoustic echo compensation, is to create a method for controlling the adaptive behavior of acoustic echo compensation that is characterized by i...  
WO/2007/060753A1
Provided are a small-sized voice information processing device excellent in a howling preventing effect, and a wiring system using the device and excellent in a function expandability and an exchanging feasibility. This processing device...  
WO/2007/062287A2
An echo canceling circuit comprising a double talk detector, an upper band signal filter configured to pass only near-end upper band signals to the double talk detector and remove lower band signals, an adaptive filter circuit, a control...  
WO/2005/041348A3
A load balancing system for dynamic balancing of load between sectors of a sectored cellular base stations, comprises plurality of repeaters (12, 14) with local coverage in the sectors, and a switching matrix (22), for associating betwee...  
WO/2007/056230A2
Various methods, apparatuses, and systems in which fault monitoring is provided to a network interface device are described. In one embodiment, an apparatus includes a network interface device (NID) located outside a building and a power...  
WO/2007/056197A2
Various methods, apparatuses, and systems in which a back up power supply is provided to a network interface device are described. In one embodiment, an apparatus includes a network interface device (NID) located outside a building and a...  
WO/2007/047219A2
Methodologies and structure are provided for use in a communications line that transmit data without plain old telephone service (POTS), or splits the POTS service from the data service, to inhibit oxidation of electrical connections wit...  
WO/2007/046070A1
An acoustic echo cancellation device (1) for canceling an echo in a microphone signal (z) in response to a far-end signal (x) comprises: an adaptive filter unit (10) arranged for filtering the far-end signal (x) so as to produce an echo ...  
WO/2007/047006A2
Apparatus and methods for deriving power from an active POTS twisted pair of lines for powering associated auxiliary electrical devices, such as signal processing electronics, includes a power supply for providing a regulated DC voltage ...  
WO/2007/037029A1
A control unit 7 gives acoustic environment instruction data to a picked up sound directionality control unit 5 and an adaptive filter 11. According to this, the picked up sound directionality control unit 5 generates a picked up sound s...  
WO/2007/031007A1
A device for realizing echo counteracting in a switch, the device includes: relay module and echo counteracting unit; the relay module determines the service needed to be echo counteracted based on the call attribute of the service, and ...  
WO/2007/030087A1
A system for monitoring a plurality of communication circuits (1500) configured to be switchably connected to one of the plurality of communication circuits. The impedance element (1510) is configured as a short circuit relative to the o...  
WO/2007/028423A1
A discussion unit (6) for use in a conference system (8) is disclosed, which is adapted to be connected to at least one second discussion unit (6) of the conference system (8). The discussion unit (6) is switchable between at least two o...  
WO/2007/027386A2
An adaptive filter in an echo canceling circuit includes a clipping detector (89) that affects the coefficients of the adaptive filter (84, 86) when clipping is detected. Clipping is defined as at least two successive maxima or minima in...  
WO/2007/025040A2
A circuit can process a sample of a signal to emulate, simulate, or model an effect on the signal. Thus, an emulation circuit can produce a representation of a real-world signal transformation by processing the signal according to one or...  
WO/2005/067654A3
A personal audio set formed that includes an ear-clip mounting portion (14) pivotally secured to a frame (16) is disclosed. In one embodiment, the frame of the personal audio set included a sliding portion to define a first axis of rotat...  
WO/2007/019702A1
In accordance with the teachings described herein, systems and methods are provided for providing environmental specific noise reduction algorithms (ESNRAs) in a head-mounted device. A network server may be used to store a plurality of E...  
WO/2006/068732A3
A hands-free digital push-to-talk device (102) includes a digital background noise suppressor (302), a digital voice activity detector (304), an audio buffer (306), as well as a decision handler (308), embedded inside the device's (102) ...  
WO/2007/021722A2
A method and system for clear signal capture comprehend several individual aspects that address specific problems in improved ways. In addition, the method and system also comprehend a hands-free implementation that is a practical soluti...  
WO/2007/018802A2
The invention concerns a system (100) and method (400) for operation of a voice activity detector (230). The system can include a speaker (105), a first microphone (110) and a second microphone (120) in which the first microphone and the...  
WO/2005/070146A3
A headphone receiver apparatus (10) for use with low power transmitters includes a pair of headphone speaker enclosures (14, 26) connected by a headband (28). An antenna element (32) in the form of a spring steel band or a plastic cable/...  
WO/2007/008086A1
The invention discloses an audio echo canceller adjusted to provide an echo attenuated output signal from an echo added microphone signal consisting of a near-end audio signal and a far -end audio signal originated echo signal by adding ...  
WO/2007/006920A1
The invention relates to processing echoes in telephone and/or videophone units, wherein a strong echo can cause an interaction between a loud speaker and a microphone. For identifying a strong echo risk, the inventive method consists in...  
WO/2007/006919A1
The invention relates to processing signal for improving a sound pick-up in telephone and/ or videophone units. The inventive method consists in comparing (13) a signal transmitted by a unit microphone (Mic) with a threshold low value (T...  

Matches 401 - 450 out of 14,267