Mindspeed Technologies, Inc.

Raed Moughabghab

Najwa Moughabghab

Wim F Cops

Fang Xu

Yi Jiang

De Jun Wang

Various systems and methods are provided for adaptive equalization. The adaptive equalization is performed on a data signal received from a channel in a receiver. The data signal is equalized using an equalizer in the receiver, thereby generating an equalized data signal. During equalization, an equalization setting of the equalizer is adapted based upon an overshoot of the equalized data signal at a data transition.

Adaptive equalization based on signal overshoot

A system and method for enhancing the dynamic range of a receiver without degrading the signal to noise ratio of an incoming signal is disclosed. In one embodiment, an enhanced dynamic range receiver for receiving an incoming signal and processing the incoming signal comprises a plurality of VGAs alternately connected in series with a plurality of equalizers to form a VGA-equalizer chain, the VGA-equalizer chain adapted to receive the incoming signal and operable to generate a first analog signal, a first PD adapted to receive the first analog signal and operable to adjust the equalizers' coefficient values, and a second PD adapted to receive a second analog signal from a selected node in the VGA-equalizer chain and operable to adjust the gain of the VGAs.

Dynamic range signal to noise optimization system and method for receiver

An adaptive equalization method and system for automatically adjusting an equalizer to compensate a signal's frequency dependent loss is disclosed. The method comprises setting the equalizer's initial coefficient value, receiving an equalized signal, identifying a positive to zero transition of the equalized signal, generating a common mode voltage from the equalized signal, and determining the equalized signal's tail settling voltage. The method further comprises comparing the equalized signal's tail settling voltage to the common mode voltage, determining if the signal is over equalized or under equalized based on the comparison, and adjusting the equalizer's coefficient value based on whether the signal is under equalized or over equalized.

System and method for digital adaptive equalization with failure detection and recovery

A process, temperature and supply insensitive trapezoidal pulse generator includes a stable reference current source for generating a stable reference current. The trapezoidal pulse generator includes a current amplification circuit adapted to receive the stable reference current and operable responsive to the stable reference current to amplify the stable reference current to a mirrored current. The trapezoidal pulse generator includes an output circuit coupled to the current amplification circuit and adapted to receive the mirrored current and operable in a second frequency to generate a trapezoidal pulse.

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Laguna Niguel, CA, United States of America

Raed Moughabghab