Disambiguated Text Message Retype Function for Handheld Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Handheld electronic devices with reduced keyboards face challenges in text entry due to ambiguous inputs, as existing keystroke interpretation systems can be cumbersome and prone to errors, leading to incorrect message transmission or increased proofreading time.
Innovation Solution
A handheld electronic device with a disambiguation function that uses a QWERTY keyboard layout and a memory-based system to provide disambiguated text entry, offering a list of suggested words and allowing users to select the intended input, with features for editing and deleting words during message review.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a reduced keyboard is used to enable text entry in a compact device, then the device can fit all twenty-six letters and symbols in a small space, but the input becomes ambiguous requiring additional disambiguation mechanisms
Solution Approach 1:
The patent segments the character selection process into multiple stages: first the user inputs ambiguous keystrokes on the reduced keyboard, then the system presents a segmented list of possible interpretations, and finally the user selects from this segmented list to resolve ambiguity. This multi-stage segmentation allows compact keyboard design while maintaining input precision.
Solution Approach 2:
The patent introduces an intermediary disambiguation display that sits between the reduced keyboard input and the final character output. This intermediary component presents multiple possible interpretations of the ambiguous input and allows the user to select the correct one, thereby resolving the information loss caused by keyboard reduction.
2Measurement precision
If multi-tap or key chording systems are used to reduce ambiguity on reduced keyboards, then character specification becomes more precise, but the number of keystrokes required increases significantly
Solution Approach 1:
The patent applies partial action by allowing the user to input only enough keystrokes to generate a manageable list of suggestions, then stopping to select from that list rather than completing the full multi-tap sequence. This partial input approach reduces the time investment while still achieving precise character specification through the selection interface.
Solution Approach 2:
The system performs preliminary action by automatically generating and displaying a list of suggested character interpretations based on the keystrokes entered so far. This preliminary presentation of options allows the user to stop typing earlier and simply select from the pre-computed list, significantly reducing the time required compared to completing full multi-tap sequences.
3Productivity
If software-based text disambiguation is used to automatically determine intended input, then text entry speed increases by ignoring suggested words, but errors occur when the disambiguation software selects incorrect language objects
Solution Approach 1:
The patent implements feedback by continuously monitoring the user's typing progress and dynamically updating the disambiguation suggestions based on the evolving input sequence. This real-time feedback mechanism allows the system to adapt to the user's intent as it develops, improving both speed and accuracy by providing increasingly precise suggestions rather than static auto-completion.
Solution Approach 2:
The disambiguation system is made dynamic by recalculating and re-presenting suggestions as the user continues typing. Rather than making a single static selection, the system dynamically adjusts the list of possible interpretations based on the current state of input, allowing the user to correct errors mid-entry and adapt to changing intent, thereby improving both speed and reliability.
4Productivity
If users ignore the displayed lists of suggested words to type faster, then text entry efficiency improves, but the user may send incorrect messages without noticing errors
Solution Approach 1:
The system performs preliminary verification by generating and displaying suggested word interpretations before the user finalizes the input. This preliminary presentation allows users to quickly scan for obvious errors without slowing down the typing process, providing a safety net that catches mistakes while maintaining high entry speed.
Solution Approach 2:
The user performs self-service verification by glancing at the displayed suggestions to confirm the system's interpretation matches their intent. This brief self-check requires minimal time investment but provides valuable error detection, allowing users to maintain high typing speeds while still catching obvious mistakes through quick visual verification.
Data Source
AI summary
A method of editing delimited ambiguous input on a handheld electronic device, the handheld electronic device including an input apparatus, an output apparatus, and a memory having a plurality of objects stored therein, the plurality of objects including a plurality of language objects and a plurality of frequency objects having a frequency value, the input apparatus including a plurality of input members, at least one of the input members having a plurality of linguistic elements assigned thereto. The method comprises detecting a selection of a language object generated from a first delimited ambiguous input, outputting a plurality of language objects which are complete word solutions of said first delimited ambiguous input, as well as an edit option, and detecting a selection of the edit option.