LVDS Frame Tagging for Error Recovery and Higher Throughput

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Solution Overview

Problem

The existing Low-Voltage Differential Signaling (LVDS) Tunneling Protocol and Interface (LTPI) lacks an error recovery mechanism, resulting in reduced throughput due to frame overhead and inefficiencies in high-speed data transmission.

Innovation Solution

A communication method and system that utilizes tags in frames to enable error recovery and increase throughput by implementing a rule-based tag system for frame management, including operations such as sending reply and resend frames based on tag differences, and using a command buffer to manage frame generation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the existing LTPI protocol is used for high-speed data transmission, then data communication can be established, but error recovery mechanism is lacking and throughput is reduced due to frame overhead

Engineering Contradiction:
Improveerror recovery capabilityVSAvoidthroughput
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent applies preliminary action by pre-defining tag validation rules and error recovery procedures before communication occurs. The receiver validates tags according to predetermined rules (increment, decrement, or constant) and prepares recovery actions in advance, enabling rapid error handling without protocol complexity that would reduce throughput

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameter approach by using simple tag value comparisons (difference calculations) rather than complex error checking mechanisms. By validating whether tag differences match expected patterns, the system achieves reliable error recovery with minimal overhead, maintaining high throughput while improving reliability

Inventive Principle:
Principle #35Parameter changes

2Ease of operation

If frame overhead is increased to ensure protocol compliance, then protocol management is improved, but throughput is reduced

Engineering Contradiction:
Improveprotocol managementVSAvoidthroughput
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent extracts the essential error recovery function from complex protocol management by focusing solely on tag validation. This minimal extraction provides sufficient protocol management capability without adding excessive overhead, thereby maintaining high throughput while ensuring proper protocol operation

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent applies partial action by implementing only the necessary tag validation component rather than comprehensive protocol management. This partial approach provides adequate error recovery and protocol control with minimal frame overhead, preserving throughput while maintaining ease of operation

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20260024509A1Method and system for communication
Publication Date: 2026.01.22 ASPEED TECH
  • US20260024509A1 patent drawing
  • US20260024509A1 patent drawing
  • US20260024509A1 patent drawing

AI summary

The invention provides a communication method, including: generating a plurality of frames sequentially by a first device, determining a tag of each of the frames according to a rule, and sending the frames sequentially to a second device; establishing a valid receiving tag by the second device; calculating a difference between the tag of a first frame and the valid receiving tag when the second device receives the first frame; and determining to perform at least one of a plurality of operations according to the difference by the second device, wherein the operations include sending a reply frame to the first device, updating the valid receiving tag, and sending a resend frame to the first device.