Broadcasting Receiver Power Control After Outage

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Conventional broadcasting receivers maintain a standby state after a temporary power outage, preventing the display from turning on when power is restored, which is inconvenient for users.

Innovation Solution

A control method for broadcasting receivers that generates a power-on pulse or uses a time interval between standby driving voltage and AC detect signals to power on the display, allowing the display to turn on even after a temporary power stoppage without additional signal lines or communication modules.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the last memory function is applied to maintain standby state after power outage, then power consumption is reduced and system stability is improved, but user convenience deteriorates as the display cannot be turned on when power is restored

Engineering Contradiction:

Improvesystem stabilityVSAvoiduser convenience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs preliminary action by detecting power restoration before the user would normally attempt to power on the display. The control unit detects when AC power is restored and automatically executes a power-on sequence, including generating power-on pulses and controlling the display to turn on, eliminating the need for user intervention and resolving the contradiction between maintaining stability and ensuring ease of operation.

Inventive Principle:

Principle #10Preliminary action

2Use of energy by stationary object

If the last memory function prevents display from turning on after power restoration, then power consumption is reduced, but user convenience deteriorates

Engineering Contradiction:

Improvepower consumptionVSAvoiduser convenience

Core Design Contradiction:

Use of energy by stationary objectVSEase of operation

Solution Approach 1:

The control unit performs preliminary detection of power restoration and automatically initiates the power-on sequence before the user would normally need to manually power on the display. This includes outputting power-on pulses to the display unit and controlling it to turn on, thereby maintaining low power consumption during standby while ensuring user convenience when power is restored.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If additional signal lines or communication modules are added to enable display power on after power outage, then user convenience is improved, but device complexity increases

Engineering Contradiction:

Improveuser convenienceVSAvoiddevice complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The control unit is designed with multi-functionality, serving both as the power management controller and the power-on signal generator. It integrates the functions of detecting power restoration, generating power-on pulses, and controlling display activation within a single component, eliminating the need for additional signal lines or communication modules and avoiding increased device complexity while improving user convenience.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8751834B2Method of controlling a broadcasting receiver and broadcasting receiver enabling the method

Publication Date: 2014.06.10 LG ELECTRONICS INC

AI summary

The present invention relates to a control method of a broadcasting receiver and a broadcasting receiver adapting the control method. More specifically, the present invention relates to a control method of a broadcasting receiver capable of switching off a power key in a state of display means standing by and switching on the power key in case that a power-key-on is inputted, to improve user convenience.