Receiver Device FIFO Depth Adjustment for Transmission Line Length

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Solution Overview

Problem

Receiver devices introduce unnecessary delay in processing signals from shorter transmission lines, reducing processing speed and accuracy in communication systems with varying line lengths.

Innovation Solution

A receiver device and operation method that detect the length of a transmission line, compare it to threshold values, and adjust the depth of the FIFO process accordingly, using a switch to control the FIFO process depth based on the comparison result, thereby avoiding unnecessary delay and expediting processing speed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the receiver introduces longer delay time to ensure accuracy for longer transmission lines, then the receiving accuracy is improved, but the processing speed is reduced due to unnecessary delay for shorter transmission lines

Engineering Contradiction:
Improvereceiving accuracyVSAvoidprocessing speed
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The patent implements dynamic adjustment of FIFO buffer depth based on detected transmission line length. The receiver dynamically changes the delay time introduced by the FIFO process according to the actual line length, transitioning from a static fixed-depth buffer to a dynamic adaptive buffer that optimizes both accuracy and speed for different transmission scenarios

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of FIFO buffer depth based on transmission line characteristics. By detecting the line length and adjusting the FIFO depth parameter accordingly, the system adapts the delay time to match the actual transmission requirements, preventing both insufficient delay for long lines and excessive delay for short lines

Inventive Principle:
Principle #35Parameter changes

2Ease of manufacture

If the receiver uses a fixed FIFO process depth to handle all transmission line lengths, then the implementation is simple, but it cannot adapt to different transmission line lengths causing either delay or speed reduction

Engineering Contradiction:
Improveimplementation simplicityVSAvoidadaptability to different line lengths
Core Design Contradiction:
Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The patent transforms the static FIFO depth configuration into a dynamic adaptive mechanism. A detection unit measures transmission line length and controls a adjustment unit to modify the FIFO buffer depth in real-time, enabling the system to adapt to varying transmission conditions without requiring multiple fixed configurations

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback loop where the receiver detects the transmission line length and uses this information to adjust the FIFO process depth. The detection result feeds back to the control mechanism, creating a closed-loop system that automatically optimizes the buffer depth based on actual transmission conditions

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11290148B2Operation method and receiver device
Publication Date: 2022.03.29 REALTEK SEMICON CORP
  • US11290148B2 patent drawing
  • US11290148B2 patent drawing
  • US11290148B2 patent drawing

AI summary

An operation method is implemented by a receiver device. The operation method includes following steps: detecting a signal on a transmission line; performing a channel estimation to acquire a length of the transmission line; comparing the length with at least one length threshold value to generate a comparison result; and adjusting a depth of a FIFO process according to the comparison result.