Shared Equalizer Adapter for Multi-Channel Data Receivers

Solution Overview

Problem

Existing data receivers with multiple equalizers face challenges in reducing circuit size and power consumption due to the increased size and power requirements of equalizer adapters when used for each reception circuit.

Innovation Solution

A data receiver design where a single equalizer adapter calculates and supplies equalization coefficients to multiple reception circuits, reducing the need for individual adapters and thereby minimizing circuit size and power consumption.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If an equalizer adapter is arranged in correspondence with each reception circuit, then waveform shaping accuracy is improved, but circuit size and power consumption increase

Engineering Contradiction:

Improvewaveform shaping accuracyVSAvoidcircuit size

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

A single equalizer adapter is designed to serve multiple reception circuits simultaneously. The adapter calculates equalization coefficients that can be applied to multiple equalizers, making the adapter a universal component that performs the same function for different reception circuits without requiring dedicated adapters for each circuit.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple equalizer adapter functions are merged into a single integrated adapter unit. Instead of having separate adapter circuits for each reception circuit, the patent combines the equalization calculation and control functions into one shared adapter that manages multiple equalizers, thereby reducing overall circuit size and component count.

Inventive Principle:

Principle #5Merging (Combining)

2Measurement precision

If an equalizer adapter is arranged in correspondence with each reception circuit, then waveform shaping accuracy is improved, but power consumption increases

Engineering Contradiction:

Improvewaveform shaping accuracyVSAvoidpower consumption

Core Design Contradiction:

Measurement precisionVSUse of energy by stationary object

Solution Approach 1:

A single equalizer adapter is designed to serve multiple reception circuits simultaneously. The adapter calculates equalization coefficients that can be applied to multiple equalizers, making the adapter a universal component that performs the same function for different reception circuits without requiring dedicated adapters for each circuit.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple equalizer adapter functions are merged into a single integrated adapter unit. Instead of having separate adapter circuits for each reception circuit, the patent combines the equalization calculation and control functions into one shared adapter that manages multiple equalizers, thereby reducing overall circuit size and component count.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If multiple equalizer adapters are used for multiple reception circuits, then individual waveform shaping control is improved, but device complexity increases

Engineering Contradiction:

Improveindividual waveform shaping controlVSAvoiddevice complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

A single equalizer adapter is designed to serve multiple reception circuits simultaneously. The adapter calculates equalization coefficients that can be applied to multiple equalizers, making the adapter a universal component that performs the same function for different reception circuits without requiring dedicated adapters for each circuit.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS7542506B2Data receiver and equalizer adapter

Publication Date: 2009.06.02 FUJITSU LTD

AI summary

A data receiver includes: a plurality of reception circuits each of which receives a data signal through a transmission line, and includes an equalizer having a function of performing waveform shaping of the data signal; and an equalizer adapter which is arranged in correspondence with all or every predetermined number of ones of the plurality of reception circuits, and calculates equalization coefficients for the equalizer in each of the plurality of reception circuits corresponding to the equalizer adapter, where the predetermined number is two or greater.