Handheld Device Timeout Extension via Sensor Detection
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Solution Overview
Problem
Handheld electronic devices often turn off the screen prematurely due to idle timeout thresholds, disrupting activities like reading or watching movies, as the current timeout mechanism fails to differentiate between user inactivity and intentional non-use.
Innovation Solution
A handheld electronic device equipped with a touch display, sensor, and processing unit that extends the timeout threshold when the device is detected to be in a reading mode (based on rotation angle) and shows significant displacement, ensuring the screen remains active during use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the timeout threshold is set to a short duration to save battery life, then energy consumption is reduced, but the screen turns off during active reading or viewing activities
Solution Approach 1:
The timeout threshold is made dynamic rather than fixed. The system automatically adjusts the timeout value based on detected device orientation (reading mode range) and displacement patterns. When reading activity is detected, the timeout threshold is extended; when idle, it returns to the original short duration, thus adapting to different usage scenarios.
Solution Approach 2:
The system changes the timeout parameter based on detected conditions. By monitoring rotation angle and displacement, the system modifies the timeout threshold parameter from a first value (short) to a second value (extended) when reading mode is detected, and reverts when idle, optimizing both battery life and user experience.
2Ease of operation
If the timeout threshold is extended to prevent premature screen shutdown, then screen availability during reading is improved, but battery life is reduced
Solution Approach 1:
The system dynamically adjusts the timeout threshold based on real-time detection of reading mode (device orientation within reading mode range) and displacement patterns. The timeout is extended only during actual reading activities and returns to normal when idle, avoiding continuous battery drain while maintaining screen availability when needed.
Solution Approach 2:
The timeout parameter is conditionally changed from a first value to a second value based on detected usage patterns. The system monitors rotation angle and displacement to determine when to apply the extended timeout, ensuring battery efficiency is maintained while improving screen availability during genuine reading sessions.
3Measurement precision
If the system uses sensor detection to differentiate reading mode from idle state, then screen shutdown accuracy is improved, but device complexity increases
Solution Approach 1:
The device uses its own built-in sensors (accelerometer, gyroscope) to automatically detect reading mode through rotation angle and displacement patterns. The processing unit analyzes these self-generated data streams without requiring external input, enabling the system to self-determine usage state and adjust timeout accordingly, improving accuracy without significant complexity increase.
Data Source
AI summary
A handheld electronic device is provided. The handheld electronic device includes a touch display unit, a sensor unit and a processing unit. The sensor unit detects a rotation angle of the handheld electronic device relative to a gravity direction and a displacement of the handheld electronic device. The processing unit is electrically connected to the touch display unit and the sensor unit to extend a timeout threshold of the touch display unit from a first value to a second value that is larger than the first value when the rotation angle is within a reading mode range. The processing unit keeps the timeout threshold at the second value when at least a first condition that the displacement of the handheld electronic device is larger than a predetermined value is met.