Device Pairing Using Display Brightness Patterns
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional device pairing techniques require specific sensors, such as color sensors or NFC, and execute one-to-one connections, necessitating additional setup and user input, limiting flexibility and convenience in pairing multiple terminals.
Innovation Solution
A device pairing system that uses a server to assign an ID to a device with a display, which calculates and outputs a brightness value change pattern, allowing terminals to detect and recognize the ID using proximity and light sensors, enabling multiple terminals to pair without pre-defined IDs or additional user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional pairing techniques use specific sensors (color sensor, NFC) and execute one-to-one connection, then connection reliability is improved, but device complexity and ease of operation deteriorate due to requiring additional sensors and user input
Solution Approach 1:
The display device serves multiple functions: it acts as both the display interface and the identification signal source. The existing display hardware is utilized to generate brightness patterns that encode device IDs, eliminating the need for dedicated identification sensors like NFC or color sensors. This multi-functional approach reduces device complexity while maintaining pairing reliability.
Solution Approach 2:
The patent replaces physical sensor-based identification mechanisms (NFC, color sensors) with an optical signaling system using the display's brightness variations. Instead of requiring specialized hardware sensors for identification, the system uses the display's light output to transmit device identity information, substituting mechanical/electronic sensor systems with an optical communication approach.
2Measurement precision
If conventional pairing requires additional color sensor or pre-set ID, then measurement precision is improved, but ease of operation and adaptability deteriorate
Solution Approach 1:
The display device generates its own identification signal using its display capability. Instead of requiring external sensors or pre-configured IDs, the system uses the display's brightness patterns to automatically encode and transmit device identity information. This self-service approach eliminates the need for user input or additional sensing hardware while maintaining accurate device identification.
Solution Approach 2:
The system encodes device IDs by varying brightness parameters (intensity, duration, patterns) of the display output. Instead of using fixed visual identifiers or requiring sensor-based color reading, the patent dynamically changes brightness parameters to represent different device identities, enabling accurate recognition through temporal and intensity modulation of the display output.
3Reliability
If conventional pairing executes one-to-one connection, then connection reliability is improved, but adaptability deteriorates for pairing multiple terminals
Solution Approach 1:
The system uses periodic brightness patterns to transmit device ID information. By encoding identification data in temporal patterns of brightness variations, multiple terminals can sequentially or simultaneously detect and recognize unique ID patterns from the display device. This periodic signaling approach enables scalable multi-terminal pairing while maintaining reliable one-to-one connection establishment for each terminal.
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 flexible pairing of multiple terminals without the need for specific sensors or pre-defined IDs, enhancing user convenience and allowing various implementations, including home appliances and mobile devices, by utilizing brightness value change patterns for identification.
Implementation Method 1
a light sensor configured to sense a brightness value change pattern output to the display
Implementation Method 2
a proximity sensor configured to sense a proximity degree with a device having a display
Data Source
AI summary
The present invention relates to a system and a method for device pairing which can pair a plurality of terminals using a brightness value change pattern. The system for device pairing according to an embodiment of the present invention comprises: an apparatus including a display; n terminals; and a server for connecting the apparatus including the display with the n terminals. The server assigns an ID to the apparatus including the display in accordance with an access request of the apparatus. The apparatus including the display calculates a brightness value change pattern corresponding to the ID, and outputs the pattern on the display. The n terminals can identify the ID after detecting the pattern outputted on the display using a proximity sensor and an illuminance sensor, transmit the ID to the server, and request an access.