Noncontact Communication Medium for Magnetic Tape Cartridge Identifier Management
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Solution Overview
Problem
Magnetic tape cartridges of different standards, such as LTO and IBM3592, often share a common identifier during manufacturing, which is fixed and limited, leading to identifier shortages and inability to rewrite or change identifiers after manufacturing.
Innovation Solution
A noncontact communication medium with a processor and memory that allows for the writing and locking of identifiers in a magnetic tape cartridge, enabling the specification of unique identifiers and error detection codes, and switching permission flags for locking processing at various stages like manufacturing, inspection, or shipping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a fixed consecutive number identifier is used in the cartridge memory before incorporation, then the identifier can be determined by the cartridge memory vendor, but the identifier cannot be rewritten by the magnetic tape cartridge vendor and has a limited number of digits leading to identifier shortages
Solution Approach 1:
The patent applies preliminary action by providing a temporary identifier in the cartridge memory before the magnetic tape cartridge is incorporated, allowing the cartridge memory vendor to determine the identifier during manufacturing. The identifier is then rewritten with a unique identifier by the magnetic tape cartridge vendor after incorporation, and finally locked to prevent further modification. This preliminary identifier serves as a placeholder that enables subsequent unique identification.
Solution Approach 2:
The patent implements dynamics by making the identifier field changeable through different operational states. The identifier storage field transitions from an initial fixed state (determined by cartridge memory vendor) to a modifiable state (rewritable by magnetic tape cartridge vendor) and finally to a locked state (unrewritable after locking). This dynamic state management allows the identifier to adapt to different manufacturing and operational stages.
2Stability of the object's composition
If the identifier is fixed in an unrewritable state before incorporation, then the identifier is stable, but the identifier cannot be changed or rewritten by the magnetic tape cartridge vendor
Solution Approach 1:
The patent implements dynamics by making the identifier field changeable through different operational states. The identifier storage field transitions from an initial fixed state (determined by cartridge memory vendor) to a modifiable state (rewritable by magnetic tape cartridge vendor) and finally to a locked state (unrewritable after locking). This dynamic state management allows the identifier to adapt to different manufacturing and operational stages.
Solution Approach 2:
The patent applies preliminary action by providing a temporary identifier in the cartridge memory before the magnetic tape cartridge is incorporated, allowing the cartridge memory vendor to determine the identifier during manufacturing. The identifier is then rewritten with a unique identifier by the magnetic tape cartridge vendor after incorporation, and finally locked to prevent further modification. This preliminary identifier serves as a placeholder that enables subsequent unique identification.
3Adaptability or versatility
If a consecutive number with limited digits is used as identifier, then the identifier can be distributed to magnetic tape cartridges of different standards, but identifier shortages occur when distributed across multiple standards
Solution Approach 1:
The patent applies preliminary action by providing a temporary identifier in the cartridge memory before the magnetic tape cartridge is incorporated, allowing the cartridge memory vendor to determine the identifier during manufacturing. The identifier is then rewritten with a unique identifier by the magnetic tape cartridge vendor after incorporation, and finally locked to prevent further modification. This preliminary identifier serves as a placeholder that enables subsequent unique identification.
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
Enables the assignment of unique identifiers to each magnetic tape cartridge, preventing identifier shortages and ensuring identifiers remain unrewritable, thus maintaining identifier integrity and flexibility in the manufacturing process.
Implementation Method 1
a noncontact communication medium with a processor and memory that performs noncontact communication with an external communication device
Data Source
AI summary
A noncontact communication medium includes a processor, and a memory incorporated in or connected to the processor, and performs noncontact communication with an external communication device. The memory has a storage block where information determined depending on a specification of a magnetic tape cartridge, in which the noncontact communication medium is mounted, is stored, and the storage block has an identifier storage field. The processor is configured to write an identifier given from the external communication device to the noncontact communication medium, in the identifier storage field, and execute locking processing of locking the identifier storage field in response to a specific command given from the external communication device to the noncontact communication medium.