Stylus Idle Mode for Battery Conservation
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Solution Overview
Problem
There is a lack of intuitive idle-stylus based user interface functions for electronic devices like tablets and smartphones to put them in power saver, sleep, or locked modes when not in use, relying on non-stylus based methods that may not conserve battery life effectively.
Innovation Solution
Implementing a stylus idle mode where the stylus is placed in a specific position, such as horizontal or latched to the device, to activate power saver, sleep, or lock modes, using angle detection and magnetic sensors to detect the stylus position, with customizable animations and sound effects, and a hybrid mode for different functions based on position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by stationary object
If traditional non-stylus based methods are used to put the device in power saver or sleep mode, then the device can be put in idle mode, but battery life is not conserved effectively
Solution Approach 1:
The stylus itself serves as the trigger mechanism for activating idle mode. When the stylus is placed in a specific position (horizontal or latched) next to the device, the system automatically detects this position and activates power-saving modes without requiring additional user actions. The stylus position itself becomes the control signal.
Solution Approach 2:
The patent replaces traditional mechanical button presses or screen taps with position-based detection. By detecting the stylus position through angle sensors or magnetic field sensors, the system substitutes mechanical input with positional sensing to activate idle mode, thereby extending battery life while maintaining ease of use.
2Productivity
If the stylus is used for active input, then user interaction is enabled, but continuous stylus presence prevents effective power saving
Solution Approach 1:
The system dynamically adjusts its behavior based on stylus position. When the stylus is in an active writing position, the device remains fully functional. When the stylus transitions to a horizontal or latched position, the system automatically transitions to power-saving mode. This dynamic response allows the device to extend usage time when needed while conserving battery when the stylus is idle.
Solution Approach 2:
The system changes its operational parameters based on stylus position detection. By monitoring the angle or position parameter of the stylus, the system switches between high-power active mode and low-power idle mode. This parameter-based control optimizes battery consumption while maintaining full functionality during active use.
3Use of energy by stationary object
If automatic idle mode activation is implemented, then battery life is extended, but device complexity increases due to additional sensors and detection mechanisms
Solution Approach 1:
The patent makes the existing stylus detection system multi-functional. The same angle sensors or magnetic field sensors that detect stylus position for input purposes are also used to detect idle position for power-saving activation. This eliminates the need for separate dedicated sensors, reducing the increase in device complexity while still achieving extended battery life.
Solution Approach 2:
The system uses a simplified detection model that copies the existing stylus position detection mechanism. Instead of adding entirely new detection systems, the patent leverages the existing sensor data processing to identify idle positions, thereby minimizing the complexity increase while achieving the power-saving goal.
4Use of energy by stationary object
If stylus position detection is used for idle mode, then power saving is effective, but measurement precision requirements increase
Solution Approach 1:
The system applies different detection thresholds or criteria for different stylus positions. Instead of requiring high precision for all positions, the system uses appropriate precision levels for specific idle position detection (horizontal or latched positions). This localized approach to measurement precision maintains power saving effectiveness while reducing overall detection 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
This method provides a discreet and intuitive way to conserve battery life by automatically activating power-saving modes when the stylus is idle, allowing easy reactivation when needed, thus extending device usage without distracting the user.
Implementation Method 1
a magnetic sensor within the device may detect the stylus, thus activating a stylus idle mode
Data Source
AI summary
Techniques are disclosed for performing functions in electronic devices by placing a device stylus in an idle position. The function may be, for example, activating a device idle mode, activating power saver or power-down mode, activating sleep mode, activating a screensaver, and/or locking the device. In some embodiments, an idle position may include setting the stylus in a horizontal position next to but not touching the device, setting the stylus in a stationary position relative to the computing device, or latching the stylus to the device or to a protective device case. In some embodiments, the stylus and/or device can detect the stylus' angle of inclination with respect to the device, thus detecting the nature of the stylus' resting. In other embodiments, when a magnetic stylus is latched to the device or device case, a magnetic sensor within the device may detect the stylus, thus activating a stylus idle mode.