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Class Information
Number: 375/229
Name: Pulse or digital communications > Equalizers
Description: Subject matter including a delay line tapped at the pulse or discrete step interval; a set of adjustable attenuators connected to each tap, except for a main tap, which attenuators can be used to multiply remaining tap signals by any number between 1 and minus 1; and a summing network.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7620101 |
Equalizer circuit, communication system, and method that is adaptive to varying launch amplitudes for reducing receiver error |
Nov. 17, 2009 |
| 7616684 |
Receiver with decision-directed equalizer |
Nov. 10, 2009 |
| 7613252 |
Installation of digital data receivers |
Nov. 3, 2009 |
| 7609759 |
Method and system of nonlinear signal processing |
Oct. 27, 2009 |
| 7609772 |
Apparatus and method for optimally compensating for imbalance between in-phase and quadrature-phase in a zero-IF OFDM receiver |
Oct. 27, 2009 |
| 7606330 |
Dual-rate single band communication system |
Oct. 20, 2009 |
| 7606302 |
Method and apparatus for non-linear decision-feedback equalization in the presence of asymmetric channel |
Oct. 20, 2009 |
| 7606300 |
Apparatus and method for setting tap coefficient of adaptive equalizer |
Oct. 20, 2009 |
| 7606293 |
Bidirectional turbo ISI canceller-based DSSS receiver for high-speed wireless LAN |
Oct. 20, 2009 |
| 7602844 |
On-line step-size calculation using signal power estimation and tone grouping of the frequency-domain equalizer for DMT-based transceiver |
Oct. 13, 2009 |
| 7602857 |
Digital transmitter |
Oct. 13, 2009 |
| 7602858 |
Digital transmitter |
Oct. 13, 2009 |
| 7599461 |
Method and apparatus for generating one or more clock signals for a decision-feedback equalizer using DFE detected data in the presence of an adverse pattern |
Oct. 6, 2009 |
| 7599431 |
Combined decision feedback equalization and linear equalization |
Oct. 6, 2009 |
| 7599426 |
Use of adaptive filters in multiple access wireless systems employing predictable signals |
Oct. 6, 2009 |
| 7599419 |
Method and apparatus for use of space time trellis codes based on channel phase feedback |
Oct. 6, 2009 |
| 7596174 |
Equalizing a transmitter |
Sep. 29, 2009 |
| 7596175 |
Methods and circuits for performing margining tests in the presence of a decision feedback equalizer |
Sep. 29, 2009 |
| 7593460 |
Macro diversity equalization system and method |
Sep. 22, 2009 |
| 7593461 |
Multi-user detection using equalization and successive interference cancellation |
Sep. 22, 2009 |
| 7593483 |
Nonlinear mapping in digital-to-analog and analog-to-digital converters |
Sep. 22, 2009 |
| 7590174 |
Signal adjustment receiver circuitry |
Sep. 15, 2009 |
| 7590173 |
System and method for performing adaptive phase equalization |
Sep. 15, 2009 |
| 7590172 |
Low bias estimation of small signal-to-noise ratio |
Sep. 15, 2009 |
| 7590175 |
DFE margin test methods and circuits that decouple sample and feedback timing |
Sep. 15, 2009 |
| 7583728 |
Equalizers for layered modulated and other signals |
Sep. 1, 2009 |
| 7583742 |
Multi-band DMT receiver |
Sep. 1, 2009 |
| 7583753 |
Methods and transmitters for loop-back adaptive pre-emphasis data transmission |
Sep. 1, 2009 |
| 7580474 |
Digital transmitter |
Aug. 25, 2009 |
| 7580455 |
Decision feedback equalization with fractionally-spaced feedback data |
Aug. 25, 2009 |
| 7580453 |
Method and apparatus for equalization |
Aug. 25, 2009 |
| 7580452 |
Dynamic comparator system |
Aug. 25, 2009 |
| 7577192 |
Method and apparatus for characterizing the distortion produced by electronic equipment |
Aug. 18, 2009 |
| 7577193 |
Adaptive equalizer |
Aug. 18, 2009 |
| 7577203 |
Minimizing non-deterministic noise by using wavelet transform |
Aug. 18, 2009 |
| 7573935 |
System and method for performing ranging in a cable modem system |
Aug. 11, 2009 |
| 7573945 |
System and method for joint maximal ratio combining using time-domain based signal processing |
Aug. 11, 2009 |
| 7571363 |
Parametric measurement of high-speed I/O systems |
Aug. 4, 2009 |
| 7570690 |
Adaptive equalizer with a dual-mode active taps mask generator and a pilot reference signal amplitude control unit |
Aug. 4, 2009 |
| 7570689 |
Advanced receiver with sliding window block linear equalizer |
Aug. 4, 2009 |
| 7570307 |
Filter device |
Aug. 4, 2009 |
| 7567615 |
Adaptive equalization circuit and adaptive equalization method |
Jul. 28, 2009 |
| 7564899 |
Multistage tuning-tolerant equalizer filter |
Jul. 21, 2009 |
| 7564900 |
Mixed-mode signal processor architecture and device |
Jul. 21, 2009 |
| 7564920 |
Digital transmitter |
Jul. 21, 2009 |
| 7561648 |
Frequency error estimation |
Jul. 14, 2009 |
| 7561642 |
Recording condition setting device, recording/reproducing device, recording condition setting method, control program, and recording medium |
Jul. 14, 2009 |
| 7561640 |
Method and apparatus for interative noise whitening with causal and anti-causal prediction filters |
Jul. 14, 2009 |
| 7561633 |
System and method for MIMO equalization for DSP transceivers |
Jul. 14, 2009 |
| 7561619 |
Feedback filter |
Jul. 14, 2009 |
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