Induction Coil Sleep Mode Wake-Up for Coordinate Positioning
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Solution Overview
Problem
Electromagnetic induction type coordinate positioning apparatuses require manual power button activation to switch from sleep mode to operating mode, leading to inconvenience and loss of recorded content if the user forgets to wake them up.
Innovation Solution
Incorporating a first induction coil to detect a pointer device's proximity, generating an induction signal that triggers a control circuit to switch from sleep to operating mode, eliminating the need for manual activation by using a trigger circuit and control circuit to manage the switching process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the electromagnetic induction type coordinate positioning apparatus remains in sleep mode to save energy, then energy consumption is reduced, but the user cannot write or interact with the device until manually woken up
Solution Approach 1:
The first induction coil continuously monitors for the pointer device in sleep mode before full operation is needed. This preliminary detection action allows the system to wake up automatically when the pointer approaches, eliminating the need for manual power button pressing while still maintaining energy savings during true idle periods.
Solution Approach 2:
The system serves itself by automatically detecting the pointer device's proximity through the first induction coil and triggering the wake-up sequence without requiring user intervention. The control circuit receives the induction signal and autonomously transitions from sleep mode to operating mode, making the device self-activating.
2Device complexity
If the apparatus requires manual power button activation to switch from sleep mode, then device complexity is reduced, but the user may forget to wake it up causing loss of recorded content
Solution Approach 1:
The first induction coil performs preliminary detection of the pointer device in sleep mode, triggering the wake-up process before the user needs to write. This ensures the device is ready to record content immediately when the user approaches with the pointer, eliminating the risk of forgetting to wake it up while adding minimal complexity.
Solution Approach 2:
The system implements feedback through the trigger circuit that monitors the induction signal from the first induction coil and automatically activates the device when the pointer is detected. This feedback loop ensures the device wakes up reliably when needed, improving content recording reliability with acceptable complexity.
3Ease of operation
If a first induction coil is added to detect pointer device proximity and enable automatic wake-up, then user convenience is improved, but device complexity increases due to additional components
Solution Approach 1:
The first induction coil serves multiple functions: it detects pointer device proximity for automatic wake-up, and can also be used for wireless power transfer and data communication when the device is in operating mode. This multi-functionality justifies the additional component by providing several useful capabilities from a single addition.
Solution Approach 2:
The patent combines the wake-up detection function with the existing electromagnetic induction infrastructure. The first induction coil operates at a different frequency or mode than the second induction coil used for full operation, merging multiple functions into a unified electromagnetic induction system that reduces overall complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables automatic switching from sleep to operating mode when a pointer device is detected, preventing loss of recorded content and enhancing user experience by eliminating the need for manual power button activation.
Implementation Method 1
The first induction coil is flowed through a first current signal, and the first induction coil is configured to sense the pointer device when the electromagnetic induction type coordinate positioning apparatus is in a sleep mode, and generate a first induction signal when detecting the pointer device
Implementation Method 2
The second induction coil is flowed through a second current signal, and the second induction coil is configured to sense and communicate with the pointer device when the electromagnetic induction type coordinate positioning apparatus is in an operating mode
Data Source
AI summary
An electromagnetic induction type coordinate positioning apparatus is provided. The apparatus includes a first induction coil, a second induction coil, a trigger circuit, and a control circuit. The first induction coil is flowed through a first current signal, and the first induction coil is configured to sense a pointer device when the electromagnetic induction type coordinate positioning apparatus is in a sleep mode, and generate a first induction signal when detecting the pointer device. The second induction coil is flowed through a second current signal, and the first induction coil is configured to sense and communicate with the pointer device when in an operating mode. The trigger circuit sends an interrupt signal according to the first induction signal. The control circuit interrupts the sleep mode according to the interrupt signal and switches to the operating mode. The control circuit in the operating mode controls the second control signal to flow through the second induction coil.