Circular Scroll Strip for Compact Device Navigation

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Solution Overview

Problem

Existing user interfaces on portable devices lack efficient scrolling capabilities, making it difficult to navigate through large menus and lists on compact screens with small surface footprints.

Innovation Solution

A touch-sensitive circular scroll strip with proportional and multi-mode zones, integrated with directional navigation keys, allowing for intuitive and rapid scrolling through menus by varying finger movement speed and direction, and enabling continuous scrolling without repetitive motion.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional scrolling methods are used on compact devices, then navigation through large menus is possible, but the process requires repetitive motion and is inefficient

Engineering Contradiction:
Improvescrolling efficiencyVSAvoidtime for navigation
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The scroll strip implements dynamic scrolling behavior where the scroll rate automatically adjusts based on the user's finger movement speed. When the user moves their finger quickly across the scroll strip, the scrolling accelerates accordingly. This dynamic response eliminates the need for repetitive small movements and allows users to navigate through large menus efficiently in a single continuous gesture.

Inventive Principle:
Principle #15Dynamics

2Volume of moving object

If device size is reduced for portability, then compact form factor is achieved, but the user interface area for navigation is limited

Engineering Contradiction:
Improvedevice sizeVSAvoiduser interface area
Core Design Contradiction:
Volume of moving objectVSArea of stationary object

Solution Approach 1:

The scroll strip extends beyond the vertical boundaries of the display area, creating a scrolling input region that utilizes the lateral dimension. This allows the scroll strip to provide extensive scrolling capability while maintaining a compact footprint on the device front surface. The scroll strip can be positioned above and below the display, effectively using the vertical space outside the screen to enhance navigation without increasing the device's overall size.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Adaptability or versatility

If more navigation options are added to handle large data sets, then scrolling capability is improved, but the device complexity increases

Engineering Contradiction:
Improvenavigation capabilityVSAvoidinterface complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The scroll strip serves multiple functions within a single unified interface element. It provides both scrolling navigation and direct selection capabilities, replacing the need for separate scroll bars, page buttons, and selection keys. The scroll strip can operate in different modes (proportional scrolling, fixed-step scrolling, and direct selection) depending on user interaction, making it a versatile navigation solution that handles various data set sizes without adding interface complexity.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7683918B2User interface and method therefor
Publication Date: 2010.03.23 GOOGLE TECHNOLOGY HOLDINGS LLC
  • US7683918B2 patent drawing
  • US7683918B2 patent drawing
  • US7683918B2 patent drawing

AI summary

A scrolling user interface comprises proportional scrolling responsive to contact in a proportional zone of a scrolling strip and multi-mode scrolling in response to contact in a multi-mode zone of the scrolling strip. Multi-mode scrolling can include proportional scrolling, continuous scrolling, or stepped scrolling.