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8184723 |
Feedback system and apparatus for video compensation
A system and apparatus for compensating cable losses in a video signal transmission system includes feedback circuits to determine the spectral attenuation of a received signal and to control an...
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8150070 |
Sound signal equalizer for adjusting gain at different frequency bands
A bass and treble audio tone control circuit configured as an integrated circuit, wherein a capacitor for setting a frequency band can be accommodated in an integrated circuit. A LPF extracts a low...
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8115566 |
Integrated front-end passive equalizer and method thereof
A passive equalizer circuit incorporated at a front-end of an integrated receiver circuit uses passive components that are distributed between inside and outside of an integrated circuit package....
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8085951 |
Method and system for determining a gain reduction parameter level for loudspeaker equalization
Methods, digital systems, and computer readable media are provided for determining a gain reduction parameter level for loudspeaker equalization by determining a noise score, an equalization...
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8064510 |
Analog encoder based slicer
A method and an apparatus for slicing an analog signal using an analog encoder.
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8054876 |
Active delay line
A delay line for deployment in an equalizer to insert a delay in a signal received by the delay line employs a plurality of cascaded delay stages where the delay per stage provided by an active...
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8054873 |
Joint phased training of equalizer and echo canceller
A method and apparatus for joint training of an analog equalizer (AEQ) and an analog echo canceller (AEC) is described. In one embodiment, which both the AEQ and AEC process an input analog signal...
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8040943 |
Least mean square (LMS) engine for multilevel signal
A method and an apparatus for slicing a multilevel analog signal using a two-level slicer having one threshold level to generate an analog error signal. The method may be performed by delaying a...
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8014541 |
Method and system for audio filtering
A system and method for graphic equalization of audio signals is disclosed. Traditional graphic equalizers provide control over the gains in each of a set of frequency bands. However, the actual...
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7991078 |
Signal processing apparatus, signal processing method, and program
In a signal processing apparatus adapted to process a signal transmitted via a transmission path, distortion of a waveform of a signal value of a specific symbol is predicted on the basis of a...
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7961817 |
AC coupling circuit integrated with receiver with hybrid stable common-mode voltage generation and baseline wander compensation
In a receiver, an AC-coupling solution uses a fully integrated circuit for simultaneously providing both baseline wander compensation and common-mode voltage generation. Usefully, an integrated...
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7936888 |
Equalization apparatus and method based on audiogram
Disclosed is an equalization apparatus and method based on audiogram. The equalization method includes the steps of a) outputting a reference sound having reference frequency and intensity for...
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7924113 |
Integrated front-end passive equalizer and method thereof
A passive equalizer circuit incorporated at a front-end of an integrated receiver circuit uses passive components that are distributed between inside and outside of an integrated circuit package....
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7848402 |
Phase-adjusted pre-emphasis and equalization for data communication
Methods and circuits are provided for producing phase-adjusted pre-emphasis and equalization. In applications in which little or no phase distortion occurs during signal transmission, propagation,...
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7826626 |
Cross-over frequency selection and optimization of response around cross-over
A system and method provide at least a single stage optimization process which maximizes the flatness of the net subwoofer and satellite speaker response in and around a cross-over region. A first...
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7826522 |
Automatic calibration circuit for a continuous-time equalizer
Embodiments of the invention are generally directed to systems, methods, and apparatuses for an automatic calibration circuit for a continuous-time equalizer (CTE). In some embodiments, the...
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7808340 |
Plug-in device for signal correction
Described herein are systems and methods for a JXP-type plug-in device that may be inserted within existing transmission equipment, such as RF amplifiers and the like, to provide an appropriate...
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7791429 |
Equalizer and connector including the same
An equalizer includes a first resistor and a capacitor connected in parallel. The positive terminal of the capacitor is connected to a signal transmission line on a blah printed circuit board. The...
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7764802 |
Frequency-warped audio equalizer
In certain embodiments, an improved audio equalization filter can be generated by frequency warping one or more digital filters having a plurality of frequency bands. Frequency warping can include,...
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7764731 |
Equalizer and semiconductor device
The present invention provides an equalizer and a semiconductor device, that can suppress a decrease in S/N ratio of a reception signal, can facilitate a disconnection test by a direct current...
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7737802 |
Passive equalizer with negative impedance to increase a gain
A passive equalizer with negative impedance to increase a gain includes a first RC loop, a second RC loop, a cascade RL circuit and a cross-coupled inverter unit. Each of the first and the second...
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7714677 |
Signal adjuster
A signal adjuster is disclosed to include a first connector and a second connector respectively connected to a signal source and a video display device, a buffer for buffering a high frequency...
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7703202 |
Method for manufacturing a transmission line equalizer
A method for manufacturing an equalizer used to compensate a digital signal passed by a transmission line, in which the digital signal can be presented as a frequency-domain function. The method...
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7696838 |
Equalizing filter circuit
In an equalizing filter circuit having an input terminal 101, an output terminal 102, delay devices 104 connected in multi-stage to the input terminal 101, and a plurality of weighting circuits 105...
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7696839 |
Signal waveform equalizer circuit and receiver circuit
A signal waveform equalizer circuit capable of equalizing the waveform of an input signal with a center voltage of 0 V and yet small in circuit scale. An input signal (in FIG. 1, positive-phase...
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7683732 |
Continuously adjustable equalizer
There is disclosed a continuously variable equalizer. The continuously variable equalizer may include a series-tuned circuit connected between an RF signal input terminal and an RF signal output...
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7676048 |
Graphic equalizers
Graphic equalizer as a cascade of equalization filters with the gain of each individual filter compensated for the gain leakage from other filters. A linear approximation allows individual filter...
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7671694 |
Programmable passive equalizer
Embodiments of a programmable passive equalizer are described herein.
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7668238 |
Method and apparatus for a high speed decision feedback equalizer
A method and apparatus for advantageously utilizing the reset state of an RTZ shift register to guarantee proper data alignment at the feedback taps to facilitate decision feedback equalization...
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7664276 |
Multipass parametric or graphic EQ fitting
Multiple passes are executed in the setup of an equalizer, and modification of the equalization is performed after each pass of an analysis phase. After an initial pass, the equalization is...
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7657039 |
Sound quality enhancement circuit for audio signals and audio amplifier circuit using the same
The present invention comprises a circuit having at least not less than three cascade connected phase shift circuits and wherein the phase characteristic of the circuit is determined in such a...
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7656248 |
Equalizer and related signal equalizing method
An equalizer is disclosed. The equalizer includes a filter, configured to receive the first transmission signal, to perform a filtering operation on the first transmission signal according to a...
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7649930 |
Filter equalization using magnitude measurement data
A filter equalization technique for an analog signal path, such as in an instrument that simultaneously measures a signal over a band of frequencies, uses magnitude measurement data for high...
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7633354 |
Multistage tuning-tolerant equalizer filter with improved detection mechanisms for lower and higher frequency gain loops
The present invention provides an equalizer filter for compensating a received distorted signal for frequency dependent signal modifications introduced by a transmission channel, the received...
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7616684 |
Receiver with decision-directed equalizer
A circuit is configured to receive and process a signal that includes in-phase and out-of-phase components that correspond to in-phase and out-of-phase components of a time sequence of symbols. A...
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7577263 |
System for audio signal processing
A sound reproduction system comprising a digital audio signal input (1), a digital audio signal processor (2, DSP) and a digital audio signal output (3) wherein the digital signal processor (2,...
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7576624 |
System and method for extending universal bus line length
A system and method for recovering a high frequency component of a slew rate controlled signal propagating along a transmission line enables the high frequency component to be recovered after being...
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7567087 |
Evaluation board and cable assembly evaluation method
An evaluation board having an interconnection line pattern formed thereon is disclosed. The interconnection line pattern has a first end to be connected to a cable assembly and a second end to be...
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7529296 |
Adaptive equalization method and circuit for continuous run-time adaptation
In some embodiments disclosed herein, equalizers in a receiver are adapted during normal operation, as they extract bit data from a received bit stream, to account for channel and/or circuit...
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7504906 |
Method for manufacturing an equalizer
A method for manufacturing an equalizer. The method first acquires a transmission line scattering-parameter, and a gain of the transmission line scattering-parameter at a frequency 1πτ, in which...
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7492816 |
Adaptive equalization methods and apparatus
A system includes a programmable transmitter device (e.g., a PLD) connected to a programmable receiver device (e.g., another PLD) via a transmission medium for transmitting a high-speed data signal...
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7446622 |
Transmission line with low dispersive properties and its application in equalization
A transmission line is provided with added shunt resistance, RSH, distributed along the length of the micro transmission line permitting the extension of constant characteristic impedance to the...
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7388959 |
Harmonic generator and pre-amp
A Harmonic Generator for audio applications and a Pre-Amplifier circuit are combined to form a Harmonic Generator and Pre-Amplifier circuit. The Harmonic Generator is formed from a Buffer Circuit...
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7382826 |
Method and apparatus for the control of a decision feedback equalizer
Input data segments of received symbols are continuously stored in a decision feedback equalizer buffer at a symbol rate S. Output data sections of received symbols are supplied from the decision...
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7324167 |
High-quality twisted-pair transmission line system for high-resolution video
A system comprising a first filter having an input and an output adapted to compensate for the characteristics of a first length of twisted-pair wire is disclosed. A first bypass path has an input...
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7312833 |
Channel equalizing apparatus and method for digital television receiver
Disclosed is a channel equalizing apparatus and method for a digital television receiver that performs channel equalization using equalizing algorithms. The channel equalizing apparatus includes a...
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7289007 |
Temperature compensated variable tilt equalizer
A temperature compensated variable tilt equalizer configured to operate over a defined frequency range. The equalizer includes an RF input, an automatic temperature compensation circuit and a...
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7283586 |
Adaptive equalizer matched filter error metric concept and apparatus
A correlative error detection system (60) for a signal equalizer (10) that corrects a distorted communications signal. The detection system (60) correlates a sequence of bits in a signal from an...
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7276986 |
Method and apparatus for improving signal integrity in a high speed flex cable
A method for decreasing high-frequency attenuation effects in a flexible cable includes communicatively coupling signal-enhancing circuitry to a signal layer of the flexible cable.
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7274736 |
Multiple path equalization for multicarrier systems
A dual path equalization structure is used to equalize DMT systems operating over channels in which different impairments dominate the performance of different parts of the channel. Two TEQ/DFT...
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