Bidirectional Device Pairing via Indicator Feedback
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Solution Overview
Problem
Conventional device discovery methods are cumbersome, as they require users to recognize devices by their MAC addresses, which are often generic and difficult to distinguish, especially when multiple devices of the same model are present, making it hard for users to connect to the intended device.
Innovation Solution
A method and apparatus for bidirectional pairing between devices that utilizes indicators such as LEDs, vibration motors, and speakers to intuitively signal connection requests, allowing users to easily recognize and connect to specific devices without the need for a display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional device discovery methods are used to display device names or MAC addresses, then device identification is possible, but users cannot easily distinguish between multiple devices of the same model
Solution Approach 1:
The patent uses different colors of light emitted by LEDs on each device to enable visual distinction. When a device is selected for connection, its LED emits light in a specific color pattern that helps the user identify which physical device corresponds to the selection on the display, solving the problem of distinguishing between multiple devices of the same model.
Solution Approach 2:
The patent employs vibration motors that generate tactile feedback when a device is selected or during the connection process. This mechanical vibration provides an additional sensory channel for users to identify and confirm the selected device, complementing the visual display and making device discrimination easier.
2Ease of operation
If device names are changed to user-friendly names, then ease of recognition improves, but the complexity of device setup increases
Solution Approach 1:
The system automatically generates and manages device identifiers and indicator patterns without requiring manual configuration by users. Each device autonomously participates in the discovery and connection process, with the control device managing the pairing workflow, thereby maintaining ease of operation without increasing setup complexity.
3Ease of operation
If indicators such as LEDs and vibration motors are added to devices, then device recognition and connection ease improve, but device complexity increases
Solution Approach 1:
The LED and vibration motor components serve multiple functions: they indicate device selection, provide feedback during connection, and enable bidirectional recognition. By making these components multi-functional, the patent reduces the need for additional separate components, thereby limiting the increase in device complexity while maximizing the benefit to connection ease.
4Reliability
If bidirectional indicator operation is implemented, then connection confirmation accuracy improves, but communication protocol complexity increases
Solution Approach 1:
The system implements bidirectional feedback where both devices emit indicators and respond to each other's indicators during the connection process. The control device monitors and coordinates this mutual indication, providing reliable confirmation that both devices have recognized and accepted the connection request, thereby improving connection confirmation accuracy through a structured feedback mechanism.
Data Source
AI summary
An apparatus and a method support bidirectional pairing between devices. A connectable peripheral device is discovered. A list of discovered connectable peripheral devices is displayed. When a peripheral device is selected from the displayed list of the discovered connectable peripheral devices, an indicator operation request message for operating an indicator of the selected peripheral device is generated and transmitted to the selected device. The selected peripheral device operates the indicator according to the indicator operation request message to indicate a connection request from the device.