Mobile Device USB Composite Processing Unit Host Load Reduction
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Solution Overview
Problem
Existing USB systems face increased load on host devices due to the connection of composite USB devices, which can lead to reduced efficiency and performance.
Innovation Solution
A mobile device with a composite processing unit and device controller driver that provides multiple USB functions, including a human interface device (HID) emulator, selects activated functions based on connection status, and generates client HID data for automated operations, reducing the load on the host device by executing automated tasks efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a composite USB device provides multiple USB functions, then the functionality and versatility of the device is improved, but the load on the host device increases
Solution Approach 1:
The mobile device performs automated operations in advance based on connection status. When connected to a host, the device automatically executes predefined tasks such as transferring contacts, messages, or files without requiring host intervention, thereby reducing the processing load on the host while maintaining multiple USB functions
Solution Approach 2:
The mobile device serves itself by automatically managing its own operations based on connection status. The device controller driver monitors connection states and triggers automated operations independently, eliminating the need for the host to manage each function separately, thus reducing host load while providing versatile functionality
2Productivity
If automated operation content is stored and executed based on connection status, then the efficiency of the mobile device is improved, but the device complexity increases
Solution Approach 1:
The composite processing unit serves multiple purposes: it acts as a USB device controller, stores automated operation content, determines connection status, and executes automated operations. By consolidating these functions into a single multi-functional component, the patent reduces overall device complexity while maintaining high efficiency through automated operations
Data Source
AI summary
A mobile device includes a composite processing unit and a device controller driver. The composite processing unit is configured to provide a plurality of functions including a human interface device (HID) emulator function, select at least one activated function of the plurality of functions and automated operation content based on a connection status between the mobile device and a host, and generate client HID data including the automated operation content. The device controller driver is configured to provide the client HID data to the host, and provide event information to the composite processing unit based on the connection status.