Patent ID: 9385897
Filing Date: 2016-07-05
CPC Classification: H04L

Claim Text:
1. A method for adapting coefficients of an equalizer in a transmitter that communicates over a channel with a receiver, comprising: determining, at the receiver, if a gain value for an amplifier in said receiver is within a limit of said amplifier; receiving a decision for either an UP request or a DOWN request at an accumulator; accumulating, with the accumulator, the received decision by either adding the UP request to or subtracting, the DOWN request from a current vertical offset value; receiving results of the accumulation at a comparator; comparing, with the comparator, the results of the accumulation with upper and lower limits for the vertical offset value; in response to determining that the results of the accumulation have reached at least one of the upper and lower limits of the vertical offset value, resetting the accumulator to a restart level using a feedback path; selectively communicating results of the determination by the receiver to the transmitter; and preventing one or more adjustments to said equalizer coefficients at the transmitter if said gain value does not satisfy said limit of said amplifier.