Electronic Calculator Database Search for Error Verification
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Solution Overview
Problem
Conventional electronic calculators face difficulties in efficiently displaying and confirming the content of specific calculations, especially when multiple calculations are involved, as the display of numerical values and operators becomes laborious and error-prone, particularly in calculations requiring a grand total.
Innovation Solution
An electronic apparatus with a processor and memory that accepts and stores multiple equations and their results, allowing users to search and display specific calculation results and grand totals, enabling easy identification and correction of errors through a user-friendly interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If all calculation records are displayed in order for verification, then complete confirmation of calculations is achieved, but the display process becomes laborious and time-consuming when many calculations are involved
Solution Approach 1:
The patent extracts and stores only the essential information from calculation records (numerical data and operators) in a database structure, enabling selective retrieval and display of specific calculations rather than displaying all records in order. This extraction allows users to quickly access only the calculations they need to verify.
Solution Approach 2:
The system performs preliminary storage of calculation records in a database during the calculation process, organizing them in advance by equation number and content. This preliminary organization enables rapid retrieval and display of specific calculations without requiring users to manually search through all records, significantly reducing verification time.
2Loss of information
If calculation records are stored and displayed sequentially, then all calculation history is preserved, but identifying and displaying specific calculations becomes laborious when calculation volume is large
Solution Approach 1:
The patent segments calculation records into individual entries stored in a database, where each record is identified by an equation number and contains specific numerical data and operators. This segmentation allows the system to store complete calculation history while enabling users to easily search for and display only the specific calculations they need through database queries rather than sequential display.
Solution Approach 2:
The patent introduces a database as an intermediary between the calculation processing and the display functions. This intermediary structure organizes and stores calculation records in a structured format, enabling efficient retrieval and display of specific calculations based on user queries without requiring sequential display of all records, thus improving ease of operation while preserving complete history.
3Device complexity
If conventional calculation record display is used, then simple implementation is maintained, but error identification in grand total calculations becomes difficult and time-consuming
Solution Approach 1:
The patent implements a feedback mechanism where calculation records are stored in a database and can be retrieved and displayed based on user queries. This feedback system allows users to quickly search for and review specific calculations, making error identification more efficient. The system maintains relative simplicity while significantly improving productivity through structured data storage and retrieval capabilities.
Data Source
AI summary
An electronic apparatus includes: a display; a memory; and a processor, wherein the processor is configured to: accept inputs of a plurality of equations in response to a user operation; display, on the display, numerical data of each of calculation results of the plurality of equations respectively; store, in the memory, each of the plurality of equations and the respective numerical data of each of the calculation results corresponding to each of the plurality of equations; accept an input of numerical data to be searched in response to a user operation; search, from the memory, numerical data of the calculation result corresponding to the numerical data to be searched; and display, on the display, an equation corresponding to the searched numerical data of the calculation result.