Wireless Memory Resource Sharing for Portable Devices
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Solution Overview
Problem
Portable electronic devices with limited memory resources face challenges in managing storage capacity, often requiring users to erase data or purchase additional memory when space is insufficient.
Innovation Solution
The solution involves securely transmitting data items from a device with limited memory to another nearby wireless device with unused storage capacity via direct wireless communication, using a smart card reader for temporary storage, and applying rules to select data items for transfer based on age, access frequency, and size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data is stored locally in the device memory, then data access speed is improved, but memory capacity is insufficient
Solution Approach 1:
The patent introduces a wireless communication interface as an intermediary between the local memory and external storage resources. When local memory is full, the system automatically transfers data items to external storage via wireless communication, then retrieves them back when needed. This mediator approach allows the device to access external storage capacity while maintaining the illusion of local storage, thus resolving the contradiction between fast local access and limited local capacity.
Solution Approach 2:
The patent segments the storage system into multiple parts: local device memory and external wireless storage resources. By dividing the storage function across these segments, the system can utilize both the speed advantage of local memory and the capacity advantage of external storage, effectively resolving the contradiction between access speed and storage capacity.
2Quantity of substance
If additional memory is purchased or external storage is used, then storage capacity is increased, but device complexity increases
Solution Approach 1:
The patent makes the wireless communication interface multi-functional by using it for both primary data transmission and overflow storage management. The same wireless interface and communication protocols are used for regular data operations and for automatically managing external storage, eliminating the need for separate hardware components and reducing overall device complexity while still providing expanded storage capacity.
Solution Approach 2:
The system implements automatic memory management where the device itself monitors its storage capacity and autonomously transfers data to external storage when needed, without requiring user intervention or complex external management systems. This self-service approach simplifies the overall system architecture by eliminating the need for additional complexity in user interfaces or manual management procedures.
3Quantity of substance
If data is transferred to external storage, then memory capacity is effectively increased, but communication security risks increase
Solution Approach 1:
The patent implements preliminary security measures by establishing secure communication channels and authentication protocols before any data transfer occurs. The wireless communication interface is configured with security parameters in advance, and data items are prepared for secure transmission before being moved to external storage. This preliminary action ensures that security is built into the foundation of the storage expansion mechanism, allowing effective capacity increase without compromising communication security.
4Ease of operation
If automatic memory management is implemented, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The patent implements a self-service memory management system where the device automatically monitors its own storage capacity, identifies data items suitable for external transfer, and executes the transfer operations autonomously. The system uses predefined thresholds and simple decision logic to determine when and what to transfer, eliminating the need for complex user interfaces or manual management procedures while maintaining ease of operation. The automatic management is achieved through simple, efficient algorithms rather than complex systems.
Data Source
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AI summary
It is not uncommon for two or more wireless-enabled devices to spend most of their time in close proximity to one another. For example, a person may routinely carry a personal digital assistant (PDA) and a portable digital audio/video player, or a cellphone and a PDA, or a smartphone and a gaming device. When it is desirable to increase the memory storage capacity of a first such device, it may be possible to use memory on one or more of the other devices to temporarily store data from the first device.