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Pulse Or Digital Communications > Systems Using Alternating Or Pulsating Current > Antinoise Or Distortion Antinoise Or DistortionAntinoise Or Distortion patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.10/25/07 - 20070248181 - Protection of communication systems against repetitive electrical impulse noise A method limits the effect of repetitive electrical impulse noise in a communication system. The presence of the repetitive electrical impulse noise is detected during communication service. If the repetitive electrical impulse noise is detected, then a message is transmitted which signals that the repetitive electrical impulse noise is present. ... 08/23/07 - 20070195909 - Signal peak voltage suppression apparatus As in a conventional technology, a hard clipping process and a filtering process are performed on a transmission signal. An original transmission signal is subtracted from a signal on which the processes have been performed, and an inverse sign signal to the suppressed signal is retrieved. By giving a gain ... 06/07/07 - 20070127590 - System and method providing signal combining to support multimode communication A system and method providing signal combining to support multimode communication. Various aspects of the present invention may provide a first input adapted to receive a first baseband signal corresponding to a first communication protocol. A second input may be provided, which is adapted to receive a second baseband signal ... 04/05/07 - 20070076813 - Apparatus and method for interference mitigation An apparatus in a wideband radio transceiver for mitigating interference between a wideband radio operating in a wide frequency band and a narrowband radio operating in a narrow frequency band within the wide frequency band. The effects of transmissions by the wideband radio on the narrowband radio are reduced by ... 03/08/07 - 20070053462 - Sampling frequency offset estimation and correction system and method for ultra wideband ofdm A system and method that uses pilot tones to determine a phase estimate to adjust the phase of a sampling clock of an analog-to-digital converter (ADC) to compensate for sampling frequency offset between the ADC in a receiver and a digital-to-analog converter in a transmitter. ... 11/23/06 - 20060262875 - Data transmission method with phase shift error correction A data transmission method with phase shift error correction comprising: transmitting through a network a transmission signal, wherein the transmission signal comprises a reference signal component having a predetermined frequency and a data signal component; receiving the transmission signal, wherein the received transmission signal includes a phase shift error caused ... 11/16/06 - 20060256890 - Noise cancelling method and apparatus In a noise canceling method and an apparatus therefor which notices the colored noise looked macroscopically, positively cancels the dominant noise component in the low frequency band, shifts the S/N value to plus, and can extract the reception signal buried in the low frequency band and having a comparatively high ... 10/12/06 - 20060227894 - Method and apparatus for minimizing co-channel interference An approach is provided for minimizing co-channel interference in a communication system is disclosed. A header of a first frame is scrambled based on a first unique word. A header of a second frame is scrambled based on a second unique word. The first frame including the corresponding scrambled header ... 08/10/06 - 20060176975 - Method for modulator auto-iq calibration A method of auto-I/Q calibration in modulator and demodulator, including DC cancellation, gain imbalance and phase error calibration is provided for implementation in a front-end circuit without the use of baseband processing signal. In modulator auto-I/Q calibration, the gain amplifier, peak detector, DC gain cell and comparator and auto-I/Q calibration ... 07/13/06 - 20060153313 - Method and apparatus for minimizing co-channel interference An approach is provided for minimizing co-channel interference in a communication system is disclosed. A header of a first frame is scrambled based on a first unique word. A header of a second frame is scrambled based on a second unique word. The first frame including the corresponding scrambled header ... 06/22/06 - 20060133534 - Method and apparatus for determining a transmit psd at a remote location The present invention relates to a method for determining a transmit PSD over a remotely-deployed line, which method comprising the steps of: modeling a first far-end crosstalk originating from the line and coupling into a centrally-deployed victim neighboring line, modeling a second far-end crosstalk originating from a further centrally-deployed neighboring ... 03/23/06 - 20060062322 - Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling Noise variance estimation in wireless communications. Noise variance estimation includes receiving a signal including an OFDM symbol having, in-band tones including in-band pilot tones, and band-edge tones including band-edge pilot tones and guard tones, estimating an effective noise variance for the in-band tones using the in-band pilot tones and channel ... 03/23/06 - 20060062321 - Method and device for wavelet denoising The present invention provides for a digital receiver arrangement and related method, in which a digital receiver arrangement comprises a tuner/demodulator circuit, an analogue-to-digital converting means, and further includes means for storing an impulse wavelet representation, means for determining if an interference impulse is present in a received signal, and ... 02/02/06 - 20060023806 - Method and system for interactive channel equalization A method and system for interactive channel equalization uses channel status information included in data packets. The system includes a first station adapted to transmit a first data packet including a channel status information segment over a radio communication channel as a first signal. A second station in the system ... 11/24/05 - 20050259763 - Radio positioning systems The invention provides a method of estimating the time offsets between signals transmitted by plural transmitters of a communications network and received by a receiver attached to a terminal. In the method a section of a representation of the signals from the plural transmitters received by the receiver at the ... 10/27/05 - 20050238112 - Device and method for improving the signal to noise ratio by means of complementary sequences A device and method for improving the signal to noise ratio by means of complementary sequences, consisting of the use of M complementary sets of sequences, understanding complementary as the sums of their autocorrelations, resulting in a Krönecker delta, the M value coinciding with the number of complementary sets of ... 09/22/05 - 20050207509 - Method and apparatus for canceling the transmitted signal in a homodyne duplex transceiver An apparatus comprises a transmitter, a receiver, an antenna and a signal cancellation circuit. The transmitter is configured to send a transmitter signal associated with a frequency. The receiver is associated with the frequency. The antenna is coupled to the transmitter and the receiver. The signal cancellation circuit is coupled ... 09/15/05 - 20050201483 - Error adjustment for multi-antenna transmitter A processing device and method for an error adjustment system for equalizing transmission characteristics of N signal processing circuitries according to N signal branches (N>1) are disclosed. An original complex IQ signal of a signal branch of N signal branches and a processed real signal of the signal branch are ... 08/25/05 - 20050185733 - Data transmission method, communication system, base station and transceiver A data transmission method utilizing time division duplex between a first and a second transceiver is provided. The first transceiver transmits a signal to the second transceiver using given transmission parameters. The second transceiver estimates a signal quality metric from the signal, the metric depicting signal quality degradation caused by ... 08/25/05 - 20050185732 - Multiscale wireless communication Multiscale communication, wherein time-frequency conditioning of the transmitted signal is used, is examined with respect to typical wireless communications systems, in which the modulating wavelet is matched to a specific channel condition. Compactly supported wavelet bases are employed, and based on their parameterization a wavelet is selected that best characterizes ... 08/25/05 - 20050185731 - Method and apparatus for reducing emi emissions for data signals traveling over a data pathway An improved data signal electromagnetic emissions system is provided for sending data signals over one or more data pathways. An original data signal is encoded into a set of sideband frequencies that exhibit a lower amplitude than the original data signal; then transmitted over the data pathway and later decoded ... ### FreshPatents.com Support |