Stylus Data Storage Device for Wireless PDA Entry
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Solution Overview
Problem
Existing data storage devices for computer systems require additional components for data transfer, which can be inconvenient for users, especially when transporting the system.
Innovation Solution
A data storage device integrated into a stylus form with non-volatile memory, a wireless transceiver, and a control processor, optionally including biometric sensors for secure data access and transmission, allowing data entry through stylus movement on touch-sensitive surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate data storage device is used for wireless data transfer, then data transfer capability is improved, but device complexity and portability are worsened due to requiring additional components
Solution Approach 1:
The patent combines a data storage device with a stylus into a single integrated unit. The housing contains both a non-volatile memory (at least 8 Mbyte) for data storage and a wireless transceiver for data transmission, while the outer profile includes a stylus portion with a tip for indicating positions on touch-sensitive surfaces. This merging eliminates the need for separate data storage and stylus devices, resolving the contradiction between data transfer capability and device complexity.
Solution Approach 2:
The integrated device performs multiple functions: it serves as a data storage device with wireless transmission capability, a stylus for inputting data to electronic devices, and potentially a biometric authentication tool. The control processor manages data storage, retrieval, and transmission operations, while the wireless transceiver enables communication with both the host electronic device and other devices. This multi-functionality allows a single device to replace multiple separate components.
2Reliability
If biometric sensors are added for secure data access, then security is improved, but device complexity is worsened
Solution Approach 1:
The biometric sensor is integrated into the housing of the stylus data storage device, combining security functionality with the existing structure. The sensor is positioned to detect biometric characteristics (such as fingerprint) when the user contacts the stylus, and the control processor verifies the biometric data against stored information to control access to data transmission operations. This integration adds security without requiring a completely separate authentication device.
Data Source
AI summary
A data storage device 5 having a storage capacity of at least 8 Mbyte is surrounded by a housing including a stylus portion 23, having a tip 25 for indicating a position. The stylus permits the data storage device 5 to be used for data entry to a electronic device 19 such as a PDA which traces the position of the stylus tip. The data storage device 5 can be used in place of a conventional stylus. Thus, the user of the electronic device 19 which traces the position of a stylus is able to enjoy the advantages of a data storage device without being obliged to use an additional component.