Multi-function Key for Thin Keyboard Cursor Control
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Solution Overview
Problem
Conventional thin keyboards often cause users to bridge the space bar with their thumbs, resulting in no pressure being applied to the designated space key area, and require users to reposition their fingers to control the cursor, disrupting the flow of thought and touch typing experience.
Innovation Solution
A multi-function key, such as a larger rectangular or teardrop-shaped space bar, that can receive simultaneous thumb contacts and function as both a space key for character input and a cursor control, using pressure-sensitive technology to differentiate between character entry and cursor control intentions, allowing seamless cursor control without repositioning hands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of stationary object
If conventional key heights are lowered to provide thinner keyboards, then keyboard thickness is reduced, but the space bar area becomes ineffective as thumbs bridge over it without applying pressure
Solution Approach 1:
The patent merges the space bar function and cursor control function into a single key area. The right thumb operates this multi-functional key to both input spaces and control cursor movement, eliminating the need for separate space bar and cursor control mechanisms. This consolidation allows the keyboard to maintain thin profile while preserving both functions' effectiveness.
Solution Approach 2:
The selected key is designed to perform multiple functions: character input (space bar), cursor control in four directions, and potential additional functions. This multi-functionality allows the keyboard to reduce overall size and thickness while maintaining all necessary operations without requiring separate dedicated keys for each function.
2Reliability
If separate keys are provided for character input and cursor control, then each function can be optimized, but the user must reposition fingers between typing and cursor control, disrupting thought flow
Solution Approach 1:
The patent combines character input and cursor control operations into a single key, allowing the user's right thumb to remain stationary while performing both functions. This eliminates the time loss associated with moving fingers between separate keys and maintains functional accuracy through pressure-sensitive detection that can distinguish between typing and cursor control intentions.
Solution Approach 2:
The selected key is designed as a universal control point that handles both text input and cursor navigation. The system uses pressure sensitivity and motion detection to determine the user's intent, ensuring reliable function execution while maintaining continuous thumb contact with the keyboard, thereby eliminating repositioning delays.
3Ease of operation
If a larger key area is provided for the space bar to accommodate thumbs, then thumb contact is improved, but keyboard real estate increases and thickness may increase
Solution Approach 1:
The patent designates a selected key with larger surface area than conventional keys to accommodate thumb contact for both space bar and cursor control functions. This multi-functional design ensures adequate thumb contact area without requiring separate dedicated keys, thereby optimizing the use of keyboard real estate while maintaining ergonomic effectiveness.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances the touch-typing experience by ensuring proper pressure application on the space key and enables efficient cursor control within the same key, reducing keyboard real estate and maintaining a thin design, allowing for simultaneous typing and cursor control with minimal lag.
Implementation Method 1
using pressure-sensitive technology to differentiate between character entry and cursor control intentions
Data Source
AI summary
Example embodiments described herein can include a display portion including a display; and a keyboard portion including a plurality of keys. One of the plurality of keys is a multi-function key configured to register a character on the display, and the multi-function key is configured to control movement of a cursor in multiple directions on the display. In yet other embodiments, the multi-function key is a space bar having a surface area substantially larger than other keys of the plurality of keys. The multi-function key can be rectangular shaped and sufficiently large to receive simultaneous contacts associated with each thumb of a user when the user types on the keyboard portion.