Command Input Method Embedding Commands in Pixel Data

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Solution Overview

Problem

Existing display systems require multiple transmission lines for command input, which increases electromagnetic interference (EMI) and lacks content protection, making them inefficient and insecure.

Innovation Solution

A dual split data transfer protocol that embeds commands within pixel data, allowing for simultaneous transmission of commands and pixel data through a single data transmission line, reducing the number of required lines and enhancing EMI characteristics and security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple transmission lines are used for command input, then command transmission capability is improved, but electromagnetic interference increases and device complexity increases

Engineering Contradiction:

Improvecommand transmission capabilityVSAvoidelectromagnetic interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent combines command transmission and pixel data transmission into a single transmission line. The command input unit receives commands through the same data transmission line used for pixel data, eliminating the need for separate command transmission lines and reducing electromagnetic interference while maintaining command transmission capability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The data transmission line is designed to serve multiple functions: it transmits both pixel data and commands. The command input unit extracts commands from the data stream received on the same line used for pixel data transmission, making the transmission line universal and reducing the total number of lines required

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate command transmission line is used, then command input reliability is improved, but the number of transmission lines increases

Engineering Contradiction:

Improvecommand input reliabilityVSAvoidnumber of transmission lines

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the command transmission function into the existing pixel data transmission line. The command input unit is configured to receive commands through the data transmission line that already carries pixel data, thereby reducing the number of transmission lines while ensuring reliable command input through dedicated extraction mechanisms

Inventive Principle:

Principle #5Merging (Combining)

3Speed

If LVDS interface is used, then data transmission capability is improved, but content protection function is lost

Engineering Contradiction:

Improvedata transmission capabilityVSAvoidcontent protection function

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The patent introduces a command input unit as an intermediary component that processes the data stream from the LVDS interface. This unit extracts commands that control content protection functions, allowing the high-speed LVDS transmission to be maintained while recovering content protection capabilities through command-based control mechanisms

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS10163182B2Command input method and display system

Publication Date: 2018.12.25 SAMSUNG DISPLAY CO LTD

AI summary

A command input method includes: converting an original pixel data into command embedded pixel data based on a command to control a device, the command being embedded in the command embedded pixel data; transmitting the command embedded pixel data from a host to the device; extracting the command from the command embedded pixel data; and controlling the device according to the extracted command.