Multi-Screen POS Input Control for Focus Conflict Prevention
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Solution Overview
Problem
Conventional POS devices face inefficiencies when multiple inputs are received simultaneously from multiple touch screens, particularly with continuous input elements like text fields, leading to loss of focus and incorrect input handling.
Innovation Solution
A system and method for dynamically controlling inputs by enabling a first input mode that replaces continuous input elements with discrete elements on multiple touch screens, allowing a single computer to process simultaneous inputs from both screens.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If continuous input elements (text input fields) are used on multiple touch screens, then input flexibility is improved, but focus management deteriorates when multiple inputs occur simultaneously
Solution Approach 1:
The system dynamically changes input element types based on operational context. When a text input field has focus on one touch screen, the system dynamically replaces continuous input elements with discrete input elements on other touch screens, and dynamically adjusts which touch screen can receive inputs based on focus state and operational mode.
2Productivity
If a single computer is used to control multiple touch screens, then computational resource efficiency is improved, but input processing reliability deteriorates due to focus loss
Solution Approach 1:
The system dynamically adjusts input element characteristics and input acceptance behavior based on focus state, touch screen identification, and operational mode. This allows a single computer to reliably process inputs from multiple touch screens by preventing focus loss conflicts through real-time adaptation of input handling.
Solution Approach 2:
The system changes parameters of input elements (continuity vs. discreteness, input acceptance state) based on focus state and touch screen context. Continuous input elements are replaced with discrete ones when focus conflicts are detected, and input acceptance is dynamically enabled or disabled based on which touch screen should receive inputs.
3Reliability
If discrete input elements are used instead of continuous input elements, then focus management is improved, but input efficiency deteriorates
Solution Approach 1:
The system dynamically selects between continuous and discrete input elements based on operational context. When a touch screen has focus or is the active input screen, continuous input elements are used for efficiency. When focus is lost or another screen should receive inputs, discrete input elements are used to prevent focus conflicts and ensure reliable input routing.
Data Source
AI summary
Computer-implemented systems and methods for dynamically controlling a multi-screen device such as a point-of-sale (POS) device are disclosed and may be configured to receive a first input; in response to receiving the first input, enable a first input mode by replacing one or more first input elements with one or more second input elements for display on at least one of a first touch display or a second touch display; receive a second input associated with at least one of the first touch display or the second touch display; determine whether the first input mode is enabled; and based on determining whether the first input mode is enabled, deny the second input.