External Keyboard Input for Secure Text Entry
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Solution Overview
Problem
Existing electronic devices face challenges in securely inputting sensitive information without exposing it externally, especially when using external devices that may visibly indicate user input positions.
Innovation Solution
An electronic device and method that allow information to be input using an external electronic device connected to the electronic device, by identifying predetermined input fields and transmitting keyboard-related information to the external device, which then inputs data securely without exposing sensitive information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If information is input through an input means (e.g., keyboard) of an electronic device, then information input functionality is achieved, but sensitive information may be exposed externally
Solution Approach 1:
The patent extracts the keyboard input functionality from the electronic device and relocates it to an external device. The electronic device only displays the input field and receives the final input data, while the external device handles the actual keyboard display and input detection. This separation removes the harmful element (visible keyboard) from the electronic device while preserving the useful function (information input).
Solution Approach 2:
The external device acts as an intermediary between the user and the electronic device for input operations. It receives keyboard input from the user, processes it, and transmits the result to the electronic device without exposing the input process on the electronic device's display. This mediator approach allows secure input while maintaining functionality.
2Ease of operation
If keyboard information is displayed on the electronic device screen, then input usability is improved, but security of sensitive information is compromised
Solution Approach 1:
The input system is segmented into two separate components: the electronic device that handles data processing and display, and the external device that handles keyboard display and input detection. This segmentation allows each component to perform its specialized function without compromising security - the external device can show the full keyboard for usability while the electronic device remains secure.
Solution Approach 2:
The keyboard interface is copied from the electronic device to the external device. Instead of displaying the keyboard on the electronic device screen, a duplicate keyboard interface is created on the external device, which then communicates the input back to the electronic device. This copying approach maintains the familiar keyboard interface for users while eliminating security risks.
3Reliability
If external device is used for input, then information security is enhanced, but device complexity increases
Solution Approach 1:
The external device is designed to serve multiple purposes: it functions as a keyboard interface, a display device, and a communication bridge between the user and the electronic device. By making the external device universal and multi-functional, the system reduces overall complexity rather than increasing it, as one device performs multiple roles that would otherwise require separate components.
Data Source
AI summary
An electronic device is provided. The electronic device includes communication circuitry, a display module, a processor operatively connected to the communication circuitry and the display, and memory, wherein the memory stores instructions, when executed, the processor controls a field for inputting text through the display is displayed, receive a user input for the field for inputting the text, confirm whether the field is a predetermined type, in response to the reception of the user input, confirm information related to the type of keyboard to be output through an external electronic device, if the field is the predetermined type, transmit, to the external electronic device, the confirmed information related to the type of keyboard through the communication circuitry, receive, from the external electronic device, data input on the basis of the keyboard corresponding to the keyboard type, and input data for the field on the basis of the received data.