Portable Record Search Across Deactivated IC Card Data
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Solution Overview
Problem
Conventional portable electronic devices, such as IC cards, fail to search for records effectively when they are in a deactivated state, leading to incomplete or inaccurate search results and increased search time due to the need to activate all records.
Innovation Solution
The device includes a search unit that can identify and include records in a deactivated state as search targets, using a search command to distinguish between activated and deactivated records and output search results accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If records in deactivated state are excluded from search targets, then search processing is simplified, but search completeness deteriorates
Solution Approach 1:
The patent segments search results into two distinct categories: records found in activated state and records found in deactivated state. The search unit processes these separately and provides differentiated output, allowing users to understand which records are currently accessible and which require activation, thus maintaining search completeness while keeping processing organized and manageable
Solution Approach 2:
The patent introduces an intermediary mechanism that detects the activation state of records during search processing. This intermediary component identifies whether a record is in activated or deactivated state and handles it accordingly, enabling the system to search through deactivated records without fully activating them, thus maintaining search completeness while avoiding the complexity of full activation
2Measurement precision
If all records are activated before searching, then search accuracy is improved, but search time increases
Solution Approach 1:
The patent applies partial action by searching through deactivated records without fully activating them. The search unit can read and examine record metadata and content in deactivated state to determine if they match search criteria, activating only those records that are actually found to be relevant. This partial activation approach maintains search accuracy while dramatically reducing the time required compared to activating all records beforehand
3Loss of information
If deactivated records are included in search targets, then search completeness is improved, but processing complexity increases
Solution Approach 1:
The patent segments the search processing into distinct pathways: one for activated records and another for deactivated records. The search unit identifies the activation state of each record and routes it through the appropriate processing path, providing segmented results that indicate which records were found in which state. This segmentation maintains search completeness while managing complexity through organized, state-aware processing
Solution Approach 2:
The patent changes the parameter of record accessibility by enabling search operations on deactivated records without changing their activation state. The search unit adjusts its reading parameters to accommodate deactivated records, allowing metadata and content examination while maintaining the deactivated state, thus improving search completeness without adding significant processing complexity
Data Source
AI summary
A portable electronic device of an embodiment includes a memory capable of storing a record in an activated state (Activate) and a record in a deactivated state (Deactivate); and one or more processors coupled to the memory and configured to: search for, based on a search command input from an external device, a record corresponding to the search command from the records stored in the memory by including the record in the deactivated state (Deactivate) in a search target; and output a search result corresponding to the record searched by the search unit to the external device.