Touch Panel Item Selection with Simultaneous Scroll
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Solution Overview
Problem
Existing electronic devices with touch screens face inefficiencies in selecting multiple content files from a large list, requiring users to alternately perform tap and scroll operations, which is time-consuming and cumbersome.
Innovation Solution
An electronic device equipped with a multi-touch screen and a touch pad, featuring a display control unit, first and second reception units, and a selection control unit, allowing users to efficiently select items by moving the list with a second touch operation while maintaining a first touch on the touch pad, enabling simultaneous selection and scrolling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If users alternately perform tap and scroll operations to select multiple content files from a large list, then selection accuracy is maintained, but operation time increases and efficiency decreases
Solution Approach 1:
The patent merges the selection operation (first touch) and scrolling operation (second touch) into a single simultaneous multi-touch interaction. Users can hold one finger on a checkbox to select an item while using another finger to scroll through the list, combining what were previously separate sequential operations into one concurrent action, thereby improving selection efficiency and reducing time loss.
2Ease of operation
If users perform sequential tap and scroll operations, then device control precision is maintained, but ease of operation deteriorates
Solution Approach 1:
The patent combines multiple operation steps (tapping to select, releasing, scrolling, tapping again) into a single continuous multi-touch gesture. The system recognizes simultaneous first touch (selection) and second touch (scrolling) operations, eliminating the need to switch between different operation modes and reducing the cognitive and physical complexity of the interaction sequence.
Solution Approach 2:
The patent adds a temporal dimension to the selection process by allowing overlapping operations in time. Instead of requiring operations to occur sequentially in time (select → scroll → select), the system enables spatially separated touches to occur simultaneously, with the first touch handling selection and the second touch handling scrolling, thus resolving the complexity through dimensional separation of functions.
Data Source
AI summary
An electronic device is provided with a touch panel configured to include a display device and a touch pad or is connected to the touch panel. A display control unit displays a list of items on a display device. A first reception unit receives a first touch operation in a selection area of an item. A second reception unit receives a second touch operation for moving the list of items. A selection control unit selects one or more items in accordance with a specified position on a front touch pad specified by the first touch operation and with the movement of the list of items by the display control unit.