| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 375234000 | Fractionally spaced equalizer | 9 |
| 20080267277 | DIGITALLY SYNCHRONIZED RECEIVING DEVICE AND ASSOCIATED SIGNAL PROCESSING METHOD - A digitally synchronized receiving device and an associated signal processing method are provided. The digitally synchronized receiving device can receive data transmitted by a transmitter. The transmitter and the receiving device belong to a first clock domain and a second clock domain respectively. The receiving device performs synchronization in a digital manner, so as to deal with the problem of the analog solution in prior arts and the synchronization for interference cancellation. | 10-30-2008 |
| 20090086809 | Method and System for On-Line Data-Pattern Compensated Adaptive Equalizer Control - In accordance with a particular embodiment of the present invention, a method is offered that includes providing a filter and an adaptive control element that is operable to communicate with the filter. The method also includes measuring, over a period, a data correlation matrix and an uncompensated error correlation vector using first and second low pass filters. In addition, the method includes implementing a data-pattern compensation matrix online, whereby the data-pattern compensation matrix is obtained online dynamically from the data correlation matrix. | 04-02-2009 |
| 20090086810 | Method and System for Static Data-Pattern Compensated Adaptive Equalizer Control - In accordance with a particular embodiment of the present invention, a method is offered that includes characterizing a data correlation matrix for an idle pattern offline in a filter environment and, further, using a static adaptive control scheme with a static value of a data-pattern compensation matrix to achieve a compensated adaptive equalizer control. In more specific embodiments, the adaptive control scheme is used with a ZF adaptation scheme in conjunction with a constant adaptation matrix. In other embodiments, the adaptive control scheme is used with a fast steepest-descent method using a variable adaptation matrix. In still other embodiments, the adaptive control scheme is used with a constant adaptation matrix, whereby a value of is statically calculated. If the adaptive control scheme is used with a decoupling matrix, a value of is statically calculated. An inverter is used between the data correlation matrix and the data-pattern compensation matrix. | 04-02-2009 |
| 20100061441 | DATA TRANSMITTING METHOD AND DATA TRANSMITTING APPARATUS - A serial-parallel converter/encoder unit | 03-11-2010 |
| 20120230386 | RECEIVER AND METHOD FOR EQUALIZING SIGNALS - A receiver and a method for equalizing signals, the method includes: receiving input signals; sampling the input signals to provide oversampled samples; processing the oversampled samples to provide symbol spaced samples and to provide fractionally spaced samples that represent the oversampled samples; calculating taps of a fractionally spaced equalizer based on the symbol spaced samples; feeding the taps to the fractionally spaced equalizer; and filtering the fractionally spaced samples by the fractionally spaced equalizer to provide equalized samples. | 09-13-2012 |
| 20130064282 | FREQUENCY-DOMAIN EQUALIZATION AND COMBINING FOR SINGLE CARRIER TRANSMISSION - A communication receiver including a time domain receive filter to provide a filtered output, the filtered output including colored noise. The receiver also includes a frequency domain, fractionally-spaced equalizer (FSE) unit to receive the filtered output from the receive filter. The FSE unit determines a separate weighting factor for each subcarrier, and the weighting factor is determined based on a noise variance of the subcarrier. | 03-14-2013 |
| 20130177065 | Method and Apparatus for a Robust Fractionally Spaced Equalizer - The described aspects include a user equipment (UE) apparatus and corresponding method of equalizing samples of received signals in wireless communication. A plurality of samples of a signal received in wireless communication can be obtained, and on-time samples and late samples of the plurality of samples are independently equalized to respectively generate equalized on-time samples and equalized late samples. In addition, a preference factor can be applied to at least the equalized on-time samples to generate preferred equalized on-time samples, which are combined with the equalized late samples to generate a set of equalized samples for decoding. | 07-11-2013 |
| 20140079111 | Method and Controller for Equalizing a Received Serial Data Stream - A controller and methods for adaptively adjusting a dispersion compensation circuit in a receiver of a communication link are disclosed. The controller receives a signal from an error detector coupled to the receiver. The controller includes a logic engine that provides configuration information to the dispersion compensation circuit. The configuration information defines a digital filter in response to at least one tap constraint and at least one coefficient constraint. In an example embodiment, the logic engine generates a measure of residual inter-symbol interference and a measure of a noise enhancement penalty and iteratively provides a set of adjusted coefficient values that when applied in the digital filter will result in an equalized receiver output signal that minimizes a mathematical combination of the measure of the residual inter-symbol interference and the measure of the noise enhancement penalty. Alternatively, for bandwidth limited channels, the controller provides a predetermined set of coefficient values. | 03-20-2014 |
| 20160381584 | COMMUNICATION SIGNAL RATE DETECTION SYSTEM - One example includes a rate detector system. The rate detector system includes a plurality of energy detectors configured to receive an input signal and to filter separate respective frequency bands associated with the input signal to generate separate respective energy profiles. The system also includes an energy processing component configured to determine a symbol rate of the input signal based on a statistical evaluation of a ratio of the separate respective energy profiles. | 12-29-2016 |
