Multi-Standby Terminal SIM Status Indicator Using External Light Emitters
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Solution Overview
Problem
Users of multi-standby terminals struggle to intuitively recognize whether subscriber identification modules (SIMs) are installed and their master/slave settings, due to the lack of clear indicators in current devices.
Innovation Solution
Incorporating first and second light emitters outside the terminal, controlled by a power supply unit and a controller, to emit light when respective SIMs are installed, and to distinguish master/slave settings through light color or brightness, allowing users to visually identify SIM states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SIM modules are installed inside the terminal for multi-standby operation, then the terminal can support simultaneous call standby with multiple wireless communication networks, but users cannot intuitively recognize whether SIMs are installed or their master/slave setting state
Solution Approach 1:
The patent applies color changes by using light emitters (LEDs) that emit different colors to indicate different SIM installation states and master/slave settings. For example, one color indicates SIM1 is master while another color indicates SIM2 is master, making the internal SIM configuration externally visible and intuitively recognizable by users.
Solution Approach 2:
The patent introduces light emitters as intermediary elements between the internal SIM modules and the external user interface. These light emitters act as mediators that translate the internal SIM status (installation presence and master/slave configuration) into visible external signals, solving the information transmission problem without requiring users to access internal terminal components.
2Adaptability or versatility
If multiple SIMs are installed in the terminal, then simultaneous call standby with multiple protocols is enabled, but users cannot recognize which SIM is set as master for call and message transmission
Solution Approach 1:
The patent uses color changes in light emitters to encode master SIM identification information. Different colors represent different master SIM configurations, allowing users to immediately identify which SIM is set as master without accessing technical menus or configuration settings, thus preventing information loss about master SIM status.
Solution Approach 2:
The patent implements feedback by having light emitters continuously or periodically indicate the current master SIM status. This provides real-time feedback to users about which SIM will be used for call and message transmission, enabling informed decision-making when switching between multiple SIM configurations.
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
Enables users to intuitively recognize SIM installation and master/slave settings, enhancing user convenience and awareness of SIM-related events, such as call or message transmissions.
Implementation Method 1
a first light emitter which is mounted for emission outside of the multi-standby terminal; a second light emitter which is separated from the first light emitter at a specific interval and is mounted for emission outside of the multi-standby terminal
Data Source
AI summary
A method of displaying an operating state of a multi-standby terminal including a first subscriber identification module (SIM) and a second subscriber identification module (SIM) and an apparatus for providing same are provided. The method preferably includes: checking whether the first SIM and the second SIM were installed; and emitting light of a first light emitter when the first SIM is installed, and emitting light of a second light emitter when the second SIM is installed.