Cellular Phone Memory Segmentation for Simultaneous Storage and Operation
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Solution Overview
Problem
Conventional methods require vendor-provided software installation on computers to use a cellular phone as an external storage device, limiting simultaneous operation of phone features and being inconvenient due to the need for manual data input and insufficient bandwidth for large file downloads.
Innovation Solution
A cellular phone design with a connector, two memory modules, and a controller that grants exclusive access rights to memory modules based on connection to an external device, allowing seamless data transfer and operation without the need for additional software installation, using multiple connection standards like USB, Bluetooth, or NFC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If vendor-provided software is pre-installed on the computer to use the cellular phone as an external storage device, then the cellular phone can be utilized as an external storage device, but the complexity of the system increases and the ease of operation decreases due to manual installation requirements
Solution Approach 1:
The cellular phone automatically activates external storage functionality when connected to a computer via USB cable, without requiring the computer to have pre-installed vendor software. The phone's USB host controller detects the connection and automatically manages the data transfer protocol, making the system self-sufficient and eliminating the need for user intervention in software installation.
Solution Approach 2:
The invention enables the cellular phone to function as a universal external storage device that can be recognized and used by any standard computer with USB capability, without requiring device-specific software. This multi-functionality approach allows the phone to serve as storage across different computer platforms and operating systems.
2Quantity of substance
If the cellular phone memory is used as external storage for a computer, then data storage capacity is increased, but the phone features cannot operate simultaneously due to resource conflicts
Solution Approach 1:
The memory system is segmented into two distinct memory spaces: phone memory for cellular phone operations and external storage memory for computer data transfer. The USB host controller in the phone manages this segmentation by directing USB data transfer operations to the external storage memory while leaving the phone memory available for normal phone functions, enabling simultaneous operation of both phone features and external storage capability.
3Ease of operation
If wireless connection is used to download large amount of data, then data transfer convenience is improved, but the bandwidth is insufficient for effective download of large files
Solution Approach 1:
The USB cable connection acts as an intermediary physical medium for data transfer between the computer and cellular phone. This wired connection provides high-speed data transfer capability for large files while maintaining the convenience of direct device-to-device transfer. The USB host controller in the phone manages this intermediary connection, enabling fast data transfer without requiring wireless bandwidth.
Data Source
AI summary
A cellular phone. The cellular phone comprises a connector, a first memory module, a second memory module, and a controller. The connector is used for physically connecting the cellular phone to an external device. The first memory module stores phone data. The second memory module stores application data received from the external device. The controller determines whether the connector is connected to the external device. If the connector is not connected to the external device, access right of both the first and second memory modules is granted exclusively to the cellular phone. If the connector is connected to the external device, access right of the first memory is granted exclusively to the cellular phone, and access right of the second memory module is granted exclusively to the external device.