Data Receiver Power-Mode Switching for Low-Pulse Signal Detection

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Solution Overview

Problem

The increasing number of pixels and frame rates in display panels necessitate faster data communication, which results in higher power consumption during temporary stream inactivity periods, and existing receiving circuits struggle to effectively receive low power pulse signals for mode switching due to noise and interference.

Innovation Solution

A data receiving device with multiple circuits to process data and control power modes based on control signals, allowing the first circuit to operate in low power mode when not receiving data and normal power mode when receiving signals, effectively processing low power pulse signals without altering the amplifier design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the receiving circuit operates in normal power mode continuously, then it can reliably receive control signals, but power consumption increases during temporary stream inactivity periods

Engineering Contradiction:

Improvecontrol signal reception reliabilityVSAvoidpower consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The receiving circuit dynamically switches between normal power mode and low power mode based on data reception status. The mode switching circuit receives a mode switching signal and accordingly adjusts the power mode of the receiving circuit, enabling adaptive power management that reduces consumption during inactivity while maintaining reliability during active data transmission

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The system changes the power mode parameter of the receiving circuit based on external control signals. When a mode switching signal is detected, the receiving circuit transitions from normal power mode to low power mode, and vice versa, allowing flexible adjustment of power consumption levels according to actual operational needs

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If the receiving circuit operates in low power mode, then power consumption is reduced, but it cannot effectively receive low power pulse signals due to noise and interference

Engineering Contradiction:

Improvepower consumptionVSAvoidcontrol signal reception reliability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The system transitions the receiving circuit to normal power mode in advance before receiving control signals. The mode switching circuit detects the mode switching signal and switches to normal power mode proactively, ensuring the receiving circuit is in the optimal state to reliably receive low power pulse signals before they arrive

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system uses mode switching signals as feedback to control the power mode of the receiving circuit. The transmitting side sends mode switching signals that indicate when control signals will be transmitted, and the receiving side uses these signals to adjust its power mode accordingly, creating a closed-loop control system that ensures reliable reception

Inventive Principle:

Principle #23Feedback

3Manufacturing precision

If the number of pixels and frame rate are increased, then display resolution and quality improve, but the amount of image data and power consumption increase

Engineering Contradiction:

Improvedisplay resolutionVSAvoidpower consumption

Core Design Contradiction:

Manufacturing precisionVSUse of energy by moving object

Solution Approach 1:

The receiving circuit operates in periodic cycles, alternating between low power mode during temporary stream inactivity periods and normal power mode during active data transmission. This periodic switching allows the system to handle high-resolution data when needed while reducing power consumption during idle intervals between data streams

Inventive Principle:

Principle #19Periodic action

Data Source

PatentUS12494156B2Data receiving device, data receiving method, and data communication system

Publication Date: 2025.12.09 LX SEMICON CO LTD

AI summary

The present disclosure relates to a data receiving device configured to receive data through a signal line connected to a data transmission device, the data receiving device may include a first circuit configured to process data received through the signal line, a second circuit configured to process a control signal received through the signal line, and a third circuit configured to control a power mode of the first circuit based on the control signal processed by the second circuit, wherein the third circuit may control the first circuit in a low power mode when not receiving the data from the first circuit and control the first circuit in a normal power mode when receiving the control signal from the second circuit.