Mutual Awakening System for Handheld Devices and Wireless Modules
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Solution Overview
Problem
Current systems for handheld devices and wireless communication modules experience unnecessary standby periods due to inefficient awakening mechanisms, where data transmission is delayed as both devices wait for each other to awaken from sleep states, leading to reduced operating efficiency and power saving inefficiencies.
Innovation Solution
A mutual awakening system using host and communication control lines with interrupt routines and detector modules to rapidly detect voltage changes, allowing immediate awakening of either device when necessary, thereby eliminating the need for self-awakening cycles and enabling immediate data operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the handheld device uses a sleep mechanism to save power, then power saving effect is improved, but the device cannot immediately respond when data transmission is needed, creating standby periods
Solution Approach 1:
The patent applies preliminary action by having the sleep mechanism continuously monitor for wake-up conditions (such as incoming data signals) before full awakening is required. This allows the system to prepare for immediate operation by detecting wake-up conditions in advance, reducing the standby period between sleep state and full operation.
Solution Approach 2:
The patent implements feedback through the sleep mechanism's ability to monitor wake-up conditions and provide real-time status information about data transmission needs. This feedback loop allows the system to adjust its awakening timing based on actual communication requirements, minimizing unnecessary standby periods while maintaining power savings.
2Loss of energy
If the wireless communication module uses periodic self-awakening to check for data transmission, then power saving is improved, but data transmission must wait for complete awakening before proceeding
Solution Approach 1:
The wireless communication module performs preliminary actions by monitoring for wake-up conditions during sleep state and preparing awakening sequences in advance. When data transmission is detected, the module can initiate awakening procedures before the handheld device is fully ready, overlapping these operations to reduce total waiting time while maintaining power efficiency.
Solution Approach 2:
The patent applies dynamics by making the awakening timing flexible rather than fixed. The sleep mechanism can dynamically adjust when to wake up based on real-time detection of data transmission needs, allowing the system to optimize between power saving and transmission speed based on actual operational conditions.
3Reliability
If both devices wait for each other to awaken from sleep state, then mutual compatibility is improved, but operating efficiency is reduced due to sequential awakening requirements
Solution Approach 1:
The patent applies preliminary action by having each device independently monitor for wake-up conditions and prepare awakening sequences before the other device is fully awakened. This allows overlapping of awakening operations, where one device can begin its awakening sequence while the other is still in sleep state, reducing the sequential waiting period while maintaining reliable mutual communication.
Solution Approach 2:
The system implements dynamics by allowing flexible, independent awakening timing for each device based on their individual wake-up condition detection. Rather than requiring synchronized sequential awakening, each device can dynamically adjust its awakening timing based on real-time communication needs, improving operating efficiency while maintaining compatibility.
Data Source
AI summary
A mutual awakening system and method thereof between a handheld device and a wireless communication module are disclosed. The system and method are applicable to the case that the wireless communication module is inserted and electrically coupled to the handheld device. The system includes a communication control line and a host control line which are used for electrically coupling the handheld device and the wireless communication module. When the handheld device is to transmit data, a second voltage signal of the communication control line is raised in value, which triggers a communication interrupt routine of the wireless communication module to awaken the wireless communication module from a sleep state. When the wireless communication module is to transmit data, a first voltage signal of the host control line is raised in value, which triggers a host interrupt routine of the handheld device to awaken the handheld device from a sleep state.