Motion Reporting via Distance-Triggered Optical Sensing
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Solution Overview
Problem
Conventional motion reporting schemes for electronic devices, such as printers and optical mice, suffer from significant distance errors due to the mismatch between the working rates of remote host devices and electronic devices, leading to inconsistent motion readings and increased power consumption when trying to resolve this with higher polling rates.
Innovation Solution
Incorporating an optical sensor within the electronic device to sense motion information and report results to a remote host device only when a predetermined distance is moved, utilizing a sensing circuit and controller to accurately track and report motion, thereby reducing the need for frequent polling and minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the polling rate is increased to reduce distance error, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic motion reporting based on distance thresholds rather than continuous polling. The electronic device reports motion information to the remote host device only when the moving distance reaches a predetermined threshold, creating an event-driven periodic reporting mechanism that reduces communication frequency and power consumption while maintaining measurement accuracy
2Measurement precision
If the polling rate is increased to reduce distance error, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system transitions from continuous polling to event-triggered periodic reporting. The remote host device polls the electronic device only when motion exceeds the predetermined distance threshold, simplifying the polling mechanism while maintaining accurate motion tracking
Solution Approach 2:
The electronic device autonomously monitors its own motion and determines when to report based on internal distance calculations. This self-service approach eliminates the need for complex continuous polling coordination between host and device, reducing overall system 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 approach enhances the accuracy and precision of motion reporting, significantly reducing distance errors and lowering power consumption by allowing the electronic device to report motion only when a specific distance is reached, thus improving performance in printing and optical mouse applications.
Implementation Method 1
using an optical sensor for sensing the motion information of the electronic device
Data Source
AI summary
A method for reporting motion information from an electronic device to a remote host device includes: using an optical sensor for sensing the motion information of the electronic device, the optical sensor being configured within the electronic device; and reporting a motion result of the electronic device to the remote host device based on the optical sensor when the electronic device has moved a predetermined distance each time.