Wearable Controller Identification Using Timed LED Recognition
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Solution Overview
Problem
Wearable electronic devices, such as AR glasses, may erroneously recognize a controller associated with another user due to the presence of a second controller within a designated space, leading to incorrect operations during virtual reality or augmented reality gaming.
Innovation Solution
The wearable electronic device is equipped with a wireless communication module, sensor module, and recognition cameras that identify controllers with LEDs by transmitting control signals to cause the LEDs to turn on at specific times, distinguishing between a first and second controller based on different turn-on times and emission periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the wearable electronic device uses recognition cameras to detect controllers with LEDs in a designated space, then the device can identify controllers within the space, but the device may erroneously recognize a controller associated with another user when multiple controllers are present
Solution Approach 1:
The patent applies periodic action by assigning different turn-on times and emission periods to LEDs in different controllers. The processor transmits control signals to cause LEDs to operate at different turn-on times, creating unique periodic light-emission patterns for each controller. This temporal differentiation allows the wearable electronic device to distinguish between multiple controllers and reliably identify the intended one, resolving the contradiction between detection capability and identification accuracy.
2Measurement precision
If the wearable electronic device transmits control signals to multiple controllers to operate LEDs at different turn-on times, then the device can distinguish between controllers, but the system complexity increases
Solution Approach 1:
The patent uses the LED as an intermediary element that converts electrical control signals into optical signals. The processor transmits control signals to cause LEDs to turn on at different times, and the recognition cameras detect these optical signals. This intermediary approach simplifies the system by using light as a communication medium, avoiding the need for complex direct electrical signaling between controllers and the wearable device.
3Measurement precision
If the wearable electronic device uses LEDs with different turn-on times and emission periods, then accurate controller recognition is achieved, but energy consumption increases due to frequent LED operations
Solution Approach 1:
The patent implements periodic action by operating LEDs in a cyclic manner with specific turn-on times and emission periods. Instead of continuous operation, LEDs are activated only during their designated time windows, creating energy-efficient periodic patterns. The recognition cameras are similarly activated only when needed to detect the light signals, reducing overall energy consumption while maintaining accurate controller identification.
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 enables accurate recognition of the intended controller, preventing erroneous operations by distinguishing between multiple controllers through unique LED light-emission patterns and timings, ensuring correct device interaction.
Implementation Method 1
a first controller and a second controller, each of which has an LED disposed therein
Data Source
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AI summary
A wearable electronic device according to an embodiment of the disclosure may include a wireless communication module, a sensor module, a first recognition camera and/or a second recognition camera, and a processor operatively connected with the wireless communication module, the sensor module, the first recognition camera, and/or the second recognition camera, wherein the processor is configured to identify that a first controller and a second controller, each of which an LED disposed therein, are detected within a designated space, through at least one of the first recognition camera and the second recognition camera, transmit, to the first controller, a control signal which causes the LED disposed in the first controller to be operated at a first turn-on time, and transmit, to the second controller, a control signal which causes the LED disposed in the second controller to be operated at a second turn-on time. Various other embodiments are also possible.