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8170229 |
Audio privacy apparatus and method
Apparatus and Method for canceling or reducing voice sounds produced during a conversation by the user of a cellular telephone or other communication device such that other persons close to the...
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8160263 |
Noise reduction by mobile communication devices in non-call situations
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),...
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8150024 |
Methods and systems for setting a volume level of ringback media presented to a calling party
Methods and systems are disclosed for setting a volume level of ringback media presented to a calling party. The method may include receiving at a ringback server an indication of ambient noise at...
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8064592 |
Adaptive communication systems and methods
Methods and communication systems are presented, in which impulse noise is monitored on a communication channel, and impulse noise protection parameters are adjusted according to the monitored...
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8050398 |
Adaptive conferencing pod sidetone compensator connecting to a telephonic device having intermittent sidetone
Disclosed herein are teleconferencing pods that include a microphone and a loudspeaker for open-air conversations, connectible to a separate telephonic device that generates an intermittent...
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8041026 |
Event driven noise cancellation
Systems and methods for noise cancellation are provided. In particular, information regarding events associated with a computer providing a telephony function or associated with a hardware...
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8019050 |
Method and apparatus for providing feedback of vocal quality to a user
Embodiments of the invention relate to a feedback mechanism that informs a user of a communication device to adjust the volume, pitch, tone or other characteristic of his voice so as to compensate...
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7986802 |
Portable electronic device and personal hands-free accessory with audio disable
A portable electronic device and personal hands-free accessory are provided. The personal hands free accessory includes at least one electro-acoustic speaker, and at least one microphone that...
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7983908 |
Noise-canceling device for voice communication terminal using configurable multiple digital filters
A noise-canceling device of a voice communication terminal that removes noise elements included in received voice signals. The device comprises: a digital filter array that exhibits filter...
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7964993 |
Network devices with solid state transformer and class AB output stage for active EMI suppression and termination of open-drain transmit drivers of a physical device
Embodiments disclosed herein describe a network device including a class AB common mode suppression (CMS) circuit coupled in parallel between a line voltage source and a physical layer (PHY) device...
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7869768 |
Techniques for controlling speaker volume of a portable communications device
A technique is directed to controlling speaker volume of a speaker of a portable communications device (e.g., a cellular telephone, a cordless hand phone, a combination of a cellular phone and a...
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7856087 |
Circuit method and system for transmitting information
Disclosed is an echo suppresser or cancellation circuit including a speech signal extrapolation unit. The speech extrapolation unit may provide extrapolated signal segment approximations to an echo...
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7835773 |
Systems and methods for adjustable audio operation in a mobile communication device
A method for adjusting the volume and frequency response for the audio output in a mobile communication device comprises estimating the noise level of the environment surrounding the mobile...
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7835515 |
Telephone terminal with control of voice reproduction quality in the receiver
A telephone terminal (UE) comprises telephone signal receiver means (MER) and processing means (MT) adapted in the absence of voice activity to determine a level of comfort noise to be generated as...
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7804963 |
Method and device for comparing signals to control transducers and transducer control system
A method of comparison between pieces of information characterizing reference values and pieces of information characterizing current values of sound-reproducing systems of a system of (n)...
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7788093 |
Noise suppression device
A noise reduction device including: an input signal spectrum obtaining unit that obtains an input signal spectrum by a subband unit based on a current frame of an input signal; an averaged spectrum...
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7783478 |
Two stage frequency subband decomposition
A method for multifunctional processing of signals in frequency subbands performs subband decomposition and signal processing in two stages. A fullband signal is first splitted, with downsampling,...
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7756265 |
On-board hands-free communication apparatus
In an on-board hands-free communication apparatus, a gain of an amplifier of a speaker for outputting an incoming voice signal from a telephone device varies with a volume set value of a speaker...
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7738655 |
Interference canceller tap sharing in a communications transceiver
A novel mechanism for sharing filter taps across a plurality of interference cancellers. Each interference canceller may be directed to impairment, such as Ethernet impairments, including Ethernet...
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7720201 |
Communication apparatus
In a communication apparatus has a line control unit that controls connection with a communication line network, a communication unit transmits/receives data through the communication line network....
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7630489 |
Adaptive communication systems and methods
Methods and communication systems are presented, in which impulse noise is monitored on a communication channel, and impulse noise protection parameters are adjusted according to the monitored...
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7515703 |
Method and system for determining conference call embellishment tones and transmission of same
A method for providing an embellishment representation of a noise information is discloses. The method comprises measuring a level of the background noise information, wherein the measured level is...
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7499686 |
Method and apparatus for multi-sensory speech enhancement on a mobile device
A mobile device is provided that includes a digit input that can be manipulated by a user's fingers or thumb, an air conduction microphone and an alternative sensor that provides an alternative...
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7492889 |
Noise suppression based on bark band wiener filtering and modified doblinger noise estimate
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. The circuit for estimating noise...
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7469051 |
Method and apparatus for maintaining audio level preferences in a communication device
An intelligent automatic volume control technique (100) for a communication device is provided that takes a measurement of the background audio environment at the time a user manually selects the...
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7466818 |
Acoustic shock prevention
Acoustic shock is reduced by attenuating an input signal based on tones detected through frequency domain analysis. The spectrum of the input signal is obtained. A relative energy signal includes a...
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7460661 |
Method and means for increasing inherent channel capacity for wired network
A receive system providing enhanced Signal to Noise performance is applicable to a wide variety of applications including both wireless and wireline systems which further include internet type...
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7454010 |
Noise reduction and comfort noise gain control using bark band weiner filter and linear attenuation
A combination of noise suppression using a Bark band modified Weiner filter and linear noise reduction improves elimination of noise in a telephone. A detector for detecting long, non-speech...
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7436786 |
Telecommunications system for minimizing the effect of white noise data packets for the generation of required white noise on transmission channel utilization
Minimizing the effects of the requisite AGWN packets on transmission channel utilization without diminishing any of the aesthetic quality of the AGWN white noise on the voice or audio...
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7369990 |
Reducing acoustic noise in wireless and landline based telephony
Acoustic noise for wireless or landline telephony is reduced through optimal filtering in which each frequency band of every time frame is filtered as a function of the estimated signal-to-noise...
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7333604 |
Adaptive notification of an incoming call in a mobile phone
A device and method for handling announcement of an incoming call in a telephone handset at least in part in accordance with a measured ambient noise level is provided. In some embodiments, the...
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7260209 |
Methods and apparatus for improving voice quality in an environment with noise
A method for improving a downlink signal received by a listener on a phone is disclosed. The method includes calculating an environment noise level of the listener and filtering and adjusting gain...
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7242763 |
Systems and methods for far-end noise reduction and near-end noise compensation in a mixed time-frequency domain compander to improve signal quality in communications systems
Methods and systems for a mixed time-frequency domain compander, where the expander and compressor are applied in the frequency domain (subbands), while the limiter and the linear gain are applied...
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7231036 |
Anti-howling circuit detecting howling from effect of predicted echo signal
In a system in which echo transferred from a received signal to an outgoing signal is canceled by subtracting an adaptively predicted echo signal from the outgoing signal, howling is detected by...
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7181000 |
Voice transmission device and voice transmission system
A voice transmission device has a tandem pass through function in an STM, ATM, IP network, and a noise canceller (21) is provided at a latter stage of an echo canceller (12) in a coding part, and...
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7171246 |
Noise suppression
A method of noise suppression to suppress noise in a signal containing background noise (314) in a communications path between a cellular communications network and a mobile terminal. The method...
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7155007 |
Systems and methods for reducing noise in ADSL transmissions
A system (242) processes asymmetric digital subscriber line (ADSL) signals. The system (242) receives a signal that includes an ADSL signal and transient noise (230). The system (242) isolates the...
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7103176 |
Direct coupling of telephone volume control with remote microphone gain and noise cancellation
The present invention creates a method, apparatus and system by which a telephone unit volume control provides instantaneous coupling to and controlling of a connected telephone unit's microphone...
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7085715 |
Method and apparatus of controlling noise level calculations in a conferencing system
Apparatus for controlling noise characteristic estimation in a conferencing system, comprising a noise characteristic estimator for estimating a noise characteristic of a signal of interest...
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7079773 |
Power feeding for an optical transmission system
A method and an apparatus for optical transmission line power feed interference compensation for compensating for an electrical interference signal in a power feed conductor (12; 52) and in an...
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7065206 |
Method and apparatus for adaptive echo and noise control
A method and apparatus for adaptive echo and noise control. A signal can be received at an input to a communication or electronic device. Background noise in the signal can be determined. The order...
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7058368 |
Adaptive feedforward noise cancellation circuit
A method and apparatus for noise cancellation in communications systems. The method is applicable in situations where an interfering signal or noise must be cancelled within a specified bandwidth....
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7057475 |
Ferrite choke
An apparatus to filter noise from being induced into a power line. In one a ferrite choke is disclosed that filters noise from being induced into a power line. The ferrite choke includes a tube of...
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7054436 |
Communication terminals with a dual use speaker for sensing background noise and generating sound, and related methods and computer program products
Communication terminals, methods, and computer program products are provided that sense background noise via a speaker that is also used to generate sounds. In some methods of operating a...
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7035400 |
Signaling Techniques in channels with asymmetric powers and capacities
An improved system and method for communicating information on a transmission medium is disclosed. The disclosed system and method provide improved communications on the transmission medium in the...
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7010118 |
Noise compensation methods and systems for increasing the clarity of voice communications
The amount of noise compensation applied to a signal is controlled by a system operating as both a noise-adaptive expander and compressor based on far-end and near-end noise level estimates.
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7003099 |
Small array microphone for acoustic echo cancellation and noise suppression
Techniques for canceling echo and suppressing noise using an array microphone and signal processing. In one system, at least two microphones form an array microphone and provide at least two...
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7003094 |
Adaptive interference cancellation for ADSL
An ADSL front end is implemented with an adaptive AM interference canceller to cancel out either a carrier signal of an interfering AM radio signal, or a carrier signal and its sidebands of an...
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6990190 |
Method and system for remote telephone calibration
A method and system for remotely calibrating a headset telephone with a reliable, accurate and easy to use user interface is provided. This method makes use of the remote programmability of...
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6963648 |
Echo/noise canceling device for use with personal computers
An adapter for reducing echo and noise in internet telephony for use with personal computers. The device employs analog circuitry to provide signal filters and delay which act together to reduce...
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