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9008196 |
Updating interface settings for an interface
A computer system includes a processor, and the processor includes at least one interface for communicating with an electronic component. Each of the at least one interface has a set of interface... |
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8976855 |
Power and area efficient receiver equalization architecture with relaxed DFE timing constraint
An exemplary receiver equalizer includes a first decision feedback equalizer (DFE) sampler coupled to a summer, the first DFE to latch an equalized output of the summer. The first branch includes... |
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8937994 |
Partial response decision feedback equalizer with selection circuitry having hold state
A partial response decision feedback equalizer (PrDFE) includes a receiver including at least first and second comparators operative to compare an input signal representing a sequence of symbols... |
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8938037 |
High speed gain and phase recovery in presence of phase noise
A circuit for reducing phase errors in a digital communication systems signal is provided. The circuit comprises a demodulator block, a feed-forward path, a feed-back path, and a slicer. The... |
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8873615 |
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... |
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8837572 |
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... |
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8831142 |
Adaptive cancellation of voltage offset in a communication system
Described embodiments include a receiver for a serial-deserializer or the like. The receiver has adaptive offset voltage compensation capability. The offset voltage is canceled by a controller in... |
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8798122 |
Symbol-timing recovery techniques for multi-branch receivers
A symbol-timing recovery function of a receiver is provided with a signal combiner (465) coupled to a first receive branch with a first receive signal (10) and to a second receive branch with a... |
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8787437 |
Adaptive equalizer and method thereof
An adaptive equalizer and an adaptive equalizing method are provided. The adaptive equalizer includes an adaptive equalizing unit, for adaptively equalizing an inputted signal to output the... |
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8774262 |
Adaptive equalization with group delay
Methods, apparatuses, and systems are presented for performing adaptive equalization involving receiving a signal originating from a channel associated with inter-symbol interference, filtering... |
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8743945 |
Shift register based downsampled floating tap decision feedback equalization
Described embodiments receive a signal by a set of fixed taps and a set of floating taps of a receiver, each tap corresponding to a detected symbol. Each of the floating taps is stored in a... |
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8743946 |
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,... |
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8737542 |
Method and apparatus for data reception in high-speed applications
A method and apparatus for receiving data in high-speed applications wherein an analog-to-digital converter (ADC) samples a received signal and a data decoder implemented with a tree search... |
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8737461 |
Receiving equalization device in communication system and receiving equalization method
Disclosed are a receiving equalization device and a method thereof, the receiving equalization device including a subtracter to output a first output signal, an eye monitor block to obtain a... |
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8711919 |
Systems and methods for adaptive blind mode equalization
Various embodiments described herein are directed to methods and systems for blind mode adaptive equalizer system to recover complex valued data symbols from the signal transmitted over... |
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8699559 |
Decision feedback equalization scheme with minimum correction delay
A decision feedback equalizer includes a correction circuit to correct a sampled value of an incoming bit based on intersymbol interference of at least one preceding bit, and to generate a... |
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8699645 |
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... |
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8675722 |
Methods and apparatus for snapshot-based equalization of a communications channel
Equalization techniques for compensating distortion associated with a communications channel are provided. In one aspect of the invention, a method/apparatus for equalizing an input signal... |
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8634455 |
Symmetric leakage for adaptive finite-impulse-response filters
An adaptive finite-impulse-response filter includes a series of taps; each tap has a corresponding value of tap coefficient. Values of tap coefficients are calculated to minimize a system error... |
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8599914 |
Feed forward equalization for highly-spectrally-efficient communications
A receiver may be operable to receive a signal. A sequence estimation module of the receiver may generate estimated symbols corresponding to the received signal. The generating of the estimated... |
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8537884 |
Single path detection and equalizer optimization
An algorithm to detect single path channel conditions and reduce the span (number of taps) of the equalizer in order to mitigate the performance degradation caused by noisy equalizer taps is... |
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8537885 |
Low-power down-sampled floating tap decision feedback equalization
In described embodiments, a variety of down-sampling techniques are employed to generate a more constrained set of floating-tap positions when compared to floating-tap Decision Feedback... |
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8509299 |
Decision feedback equalizer operable with multiple data rates
Decision feedback equalization (DFE) circuitry and method for equalizing data signals over a wide range of data rates. By using delayed and controlled versions of the recovered data clock to... |
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8446985 |
Method and system for reducing duty cycle distortion amplification in forwarded clocks
A method and apparatus for reducing the amplification of the duty cycle distortion of high frequency clock signals when is provided. A data signal is sent to a receiver via a first channel. A... |
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8446942 |
Waveform equalization circuit and waveform equalization method
A waveform equalization circuit includes: a decision feedback equalization unit that feeds back and equalizes an input signal; a clock phase adjustment unit that adjusts a clock phase of a signal... |
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8442102 |
Chip equalization apparatus and method thereof
A chip equalization apparatus and method for selecting cluster signals from broadcast signals being continuously received in multi-path channels for extracting a plurality of cluster signals from... |
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8442106 |
Floating-tap decision feedback equalizer for communication channels with severe reflection
An apparatus including a first circuit and a second circuit. The first circuit may be configured to determine values for a predefined metric for a plurality of tap positions within a range covered... |
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8428111 |
Crosstalk emission management
Various embodiments are disclosed relating to crosstalk emission management. In an example embodiment, an amplitude of a main tap of a transmit equalizer may be determined to limit crosstalk... |
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8428112 |
Parameter control circuit
An interface circuit inputting and outputting data and a clock that have multiple speeds is provided with an equalizer capable of changing a circuit parameter, a frequency detection part detecting... |
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8401063 |
Decision feedback equalization scheme with minimum correction delay
A decision feedback equalizer includes a correction circuit to correct a sampled value of an incoming bit based on intersymbol interference of at least one preceding bit, and to generate a... |
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8374290 |
Demodulating apparatus and demodulating method
This invention relates to a demodulating apparatus and a demodulating method for demodulating an input signal more quickly than before when the channels of the input signal are inverted. A... |
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8351496 |
Apparatus for filtering signals
An integrated circuit having a filter apparatus for filtering a first symbol sequence is disclosed. The first symbol sequence has a predetermined symbol duration. The apparatus includes at least... |
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8340170 |
Receiver and apparatus for receiving a data signal
A receiver for receiving a data signal having a channel profile may include an equalizer, to which the data signal is feedable, the equalizer having a plurality of filters and a switching device... |
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8320440 |
Equalizer circuit
An equalizer circuit receives digital amplitude data A[N] which represents the amplitude level of the N-th (N is a nonnegative integer) signal to be transmitted via a transmission line and timing... |
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8284828 |
Monitoring instability and resetting an equalizer
Instability resulting from non-linear impairments is detected and an equalizer of an end device is reset. An equalization instability threshold is retrieved from a data storage device. An... |
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8238413 |
Adaptive equalizer for high-speed serial data
An adaptive equalizer for high-speed serial data comprises a programmable equalizer for equalizing an input serial data signal to generate an equalized serial data signal, wherein the equalization... |
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8233522 |
Decision feedback equalizer for digital TV and method thereof
The conventional decision feedback equalizer has a drawback that can't decide symbols correctly because a simple slicer is used as a symbol detector. A decision feedback equalizer as a symbol... |
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8208529 |
Equalization apparatus and method of compensating distorted signal and data receiving apparatus
Provided are an equalization apparatus and method of compensating a distorted received signal. The equalization apparatus includes: a filter unit removing inter-symbol interference (ISI) from a... |
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8204164 |
Communications system using adaptive filter and selected adaptive filter taps
A communications system receives a modulated signal that carries encoded communications data. An adaptive filter has a plurality of non-adaptive and adaptive filter taps with weighted coefficients... |
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8175203 |
Broadcast channel estimator
A communication system comprises a receiver, which may generate broadcast coefficients that represent the characteristics of a channel using the channel information encoded in the segment... |
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8175201 |
Systems and methods for adaptive equalization in recording channels
Various embodiments of the present invention provide systems and methods for performing adaptive equalization. For example, various embodiments of the present invention provide methods for... |
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8149950 |
Method and system for baseband predistortion linearization in multi-channel wideband communication systems
An efficient baseband predistortion linearization method for reducing the spectral regrowth and compensating memory effects in wideband communication systems using effective multiplexing... |
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8144759 |
Adaptive methods employing optimal convergence factors for processing complex signals and systems
Complex adaptive methods for complex information processing employ optimal individual convergence factors for real and imaginary components of the weight vector. For wireless receivers operating... |
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8135057 |
Reconfigurable chip level equalizer architecture
A reconfigurable chip level equalizer having circuitry that restores signal orthogonality and eliminates channel interference for a wireless transmitted signal. In at least some embodiments, the... |
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8126044 |
Passive system and method to equalize distortion in an RF satellite chain
A system and method for configuring an equalizer 48 for a transmission link includes a computer 82 that forms a mathematical model of an analog equalizer having a plurality of mathematical model... |
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8121183 |
System for an adaptive floating tap decision feedback equalizer
A method for adaptive selection of floating taps in a decision feedback equalizer including the steps of (A) determining values for a predefined metric for tap positions within a range covered by... |
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8121236 |
Communications system using adaptive filter circuit using parallel adaptive filters
A communications system receives a modulated communication signal that carries encoded communications data. A signal input receives the communication signal. An adaptive filter circuit is... |
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8116366 |
Delayed decision feedback sequence estimator
Disclosed is a delayed decision feedback sequence estimator comprising a delayed decision feedback sequence estimator main unit including DDFSE computing unit group including (L+M) DDFSE computing... |
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8111740 |
Time-domain equalizer
The present invention provides a cost-effective TEQ hardware architecture to support multiple VDSL2 profiles. It supports variable TEQ tap length programmable through firmware. Larger TEQ tap... |
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8107572 |
Communications system using adaptive filter for interference reduction
A communications system receives a modulated signal that carries encoded communications data. An adaptive filter circuit has a plurality of adaptive filters each having a plurality of non-adaptive... |