Portable Terminal Secure Input via Code Image Synthesis
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Solution Overview
Problem
Existing image forming systems face challenges in maintaining operability while preventing character input content from being peeked by others during the character input process, as existing solutions either increase processing load on external terminals or rely on remote operation techniques that compromise reaction time.
Innovation Solution
An image forming system that includes an image forming apparatus and a portable terminal, where the apparatus generates a code image with display commands for the character input part, and the portable terminal picks up this image, extracts the display commands, synthesizes the character input part with the picked-up image, and transmits the input content, allowing secure and efficient character input without transmitting image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If character input is performed on the operation panel of the image forming apparatus, then the user can input characters directly, but the input content may be peeped by other users standing nearby
Solution Approach 1:
The patent introduces a portable terminal as an intermediary device between the user and the image forming apparatus. The portable terminal displays the character input screen and receives input, acting as a mediator that protects the user's input from being seen by others while still allowing communication with the image forming apparatus.
Solution Approach 2:
The patent moves the character input interface from the two-dimensional operation panel to the portable terminal's display, creating a new spatial dimension for input. This dimensional shift allows the user to input characters in a private space (portable terminal) while maintaining connection to the original system.
2Ease of operation
If the operation screen is transmitted to an external terminal for remote operation, then the user can input away from the apparatus, but the processing load on the external terminal increases
Solution Approach 1:
The patent extracts only the necessary character input functionality from the full operation screen and transmits it to the portable terminal. By taking out only the essential input elements rather than transmitting the complete operation interface, the processing load on the portable terminal is significantly reduced while maintaining remote input capability.
Data Source
AI summary
An image forming system includes an image forming apparatus and a portable terminal for displaying a character input screen. The image forming apparatus has a generation part for generating a code image having a display command to display a character input part in the character input screen and a display part for displaying an operation screen including the code image. The external terminal has an image pickup part for generating a picked-up image obtained by picking up an image of the operation screen, an extraction part for extracting the display command from the code image included in the picked-up image, a user interface part for displaying, on the basis of the display command, the character input screen obtained by synthesizing the character input part and the picked-up image, and a communication part for transmitting a character input content inputted in the character input screen to the image forming apparatus.