Wireless Transmitter LED Control for Power State Visibility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing wireless television systems with light-emitting units in wireless transmitters continue to consume power and cause user inconvenience due to unnecessary light emission, even when the television is turned off, leading to power wastage and dazzling at night.
Innovation Solution
A wireless television system with a light-emitting unit that is controlled by a light-emission control unit to turn off when either the wireless transmitter or television is in an off state, and to blink during data transmission/reception, using switches and control signals to manage LED light emission based on power states and signal transmission/reception loops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the light-emitting unit is controlled to emit light whenever power is supplied to the wireless transmitter, then the user can check the power state and signal transmission/reception state, but unnecessary power consumption occurs and dazzling is generated at night when the television is off
Solution Approach 1:
The light-emitting unit's operation is made dynamic by controlling it to emit light only when both the wireless transmitter and wireless television are in the on-state. The control unit continuously monitors the power states of both devices and adjusts the light emission accordingly, transitioning between emitting and non-emitting states based on real-time conditions. This dynamic control resolves the contradiction by ensuring visibility of power state only when needed (both devices on), while preventing unnecessary power consumption and dazzling when the television is off.
2Ease of operation
If multiple LEDs are installed to improve visibility and appearance, then the user can easily check the state, but power consumption increases and dazzling becomes more severe
Solution Approach 1:
Instead of having all LEDs emit light simultaneously, the control unit applies local quality control by enabling light emission only for specific LEDs when both devices are in the on-state. This selective emission approach maintains sufficient visibility for state indication while significantly reducing overall light output and power consumption, thereby minimizing dazzling effects on users at night.
3Ease of operation
If the light-emitting unit continues to emit light when the television is off, then the wireless transmitter remains visible, but power is unnecessarily consumed
Solution Approach 1:
The control unit implements feedback control by continuously monitoring the power state of both the wireless transmitter and wireless television. Based on this feedback, the control unit adjusts the light-emitting unit's operation accordingly. When the television is in the off-state, the feedback signal causes the control unit to turn off the light-emitting unit, preventing unnecessary power consumption while maintaining visibility only when both devices are operational.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution prevents unnecessary power consumption and user inconvenience by ensuring the light-emitting unit is only active when both the wireless transmitter and television are on, reducing power wastage and minimizing nighttime dazzling.
Implementation Method 1
The light-emitting unit provided to the wireless transmitter 11 can include at least one LED. A predetermined drive power Vcc is applied to one electrode of the LED. Also, a ground voltage can be applied to the other electrode of the LED. Therefore, when power of the wireless transmitter 11 is an on-state, the drive power Vcc is applied to the light-emitting unit, and a current path is formed by the drive power Vcc, the LED, and the ground voltage, so that the light-emitting unit emits light.
Data Source
AI summary
Provided are a wireless television system and a wireless transmitter, capable of automatically turning off a light-emitting unit installed in the wireless transmitter depending on a power state of the wireless transmitter and the wireless television system. The wireless television system includes: a wireless transmitter for relaying a video signal received from the outside; a wireless television for receiving the video signal from the wireless transmitter and displaying an image corresponding to the received composite video signal; a light-emitting unit installed in at least one of the wireless transmitter and the wireless television, and displaying one of a power state and a signal transmission/reception state from one of the wireless transmitter and the wireless television; and a light-emission control unit for controlling the light-emitting unit to emit light when both power of the wireless transmitter and power the wireless television are turned on.