Terminal Character Case Conversion Controller
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Solution Overview
Problem
Current input methods require inconvenient steps to change individual characters from capital to small letters or vice versa, involving selection, deletion, and mode switching using the Caps Lock key.
Innovation Solution
A controller in a terminal apparatus and method that allows for sequential changes of characters within a selected word to capital or small letters by using a change key, enabling direct conversion of the first character or entire words based on input mode states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the Caps Lock key is used to change character case, then the character case can be changed, but the operation becomes inconvenient and time-consuming due to required mode switching and character deletion/reinput
Solution Approach 1:
The patent segments the character case change operation into distinct selectable options (first character only, entire word, or specific character ranges) rather than requiring uniform mode switching for all characters. This allows users to precisely target only the characters needing case changes, eliminating unnecessary mode switching and deletion/reinput steps for other characters.
Solution Approach 2:
The patent implements preliminary action by allowing users to select and mark target characters or word portions before executing the case change operation. The controller stores the selection state and automatically applies the appropriate case transformation when the change key is pressed, eliminating the need for real-time mode switching during character input.
2Adaptability or versatility
If the Caps Lock key is used to switch between capital and small letter modes, then character case can be changed, but the device complexity increases due to mode switching mechanisms
Solution Approach 1:
The patent extracts the case change function from the Caps Lock mode switching mechanism. Instead of relying on global capital/small letter modes, the system directly transforms selected characters to uppercase or lowercase based on user selection, eliminating the need for complex mode switching state management while maintaining case change versatility.
Solution Approach 2:
The patent implements a universal character case change mechanism that handles multiple scenarios (first character, entire word, specific character ranges) through a single integrated process. The controller determines the appropriate scope based on selection state and executes the corresponding transformation, providing adaptability without requiring separate mechanisms for each case change scenario.
Data Source
AI summary
An apparatus and a method of changing a character in a terminal, capable of conveniently changing a capital letter and a small letter of an input word, includes a controller that, whenever a change key is entered after a specific word is selected in an input mode, is configured to sequentially perform a change in a first character among characters of the specific word to a capital letter or a small letter, a change in entire characters of the specific word to capital letters, and a change of the entire characters of the specific word to small letters.