Directional Feedback via Haptic and Visual Signals
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Solution Overview
Problem
Existing mobile device navigation techniques are inadequate in noisy, crowded, or brightly lit environments, as audio feedback is difficult to hear and graphical displays are hard to view, leading to inefficient navigation and battery drain.
Innovation Solution
Implementing a mobile device system that uses sensors like accelerometers, magnetometers, and gyroscopes to provide haptic or visual feedback, such as vibrations or high-intensity strobe lights, allowing users to determine direction by pointing the device, without significant battery drain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If audio feedback (verbal instructions or audible sounds) is used for navigation, then directional guidance is provided to the user, but noise in the environment renders the feedback difficult or impossible to hear
Solution Approach 1:
The patent replaces acoustic feedback mechanisms with haptic feedback mechanisms. Instead of using speakers to provide verbal or audible navigation instructions, the system employs vibration motors to generate tactile feedback patterns that convey directional information through touch, thereby eliminating the vulnerability to noise interference
Solution Approach 2:
The patent changes the physical parameter of feedback delivery from acoustic waves to mechanical vibrations. By transforming the nature of the feedback signal from sound-based to touch-based, the system adapts to environments where acoustic feedback is ineffective due to noise conditions
2Illumination intensity
If display intensity is increased to improve visibility in direct sunlight, then graphical feedback becomes viewable, but battery power is significantly drained
Solution Approach 1:
The patent replaces optical feedback through display screens with haptic feedback through vibration motors. Instead of increasing display brightness to overcome sunlight interference, the system uses tactile vibrations that are equally detectable in bright outdoor conditions, thereby avoiding the high energy consumption associated with high-intensity displays
Solution Approach 2:
The haptic feedback system provides navigation information directly through the device itself via vibrations, eliminating the need for external visual aids that would require additional energy. The vibration motor serves multiple functions including feedback delivery and orientation indication without requiring supplementary high-power components
3Loss of information
If graphical feedback from mobile device display is used for navigation, then directional path information is provided to the user, but the feedback is not easily viewable in direct sunlight
Solution Approach 1:
The patent substitutes visual display feedback with haptic vibration feedback. The vibration patterns encode directional navigation information that can be perceived through touch regardless of ambient light conditions, ensuring reliable information delivery in direct sunlight where graphical displays become invisible
Solution Approach 2:
The haptic feedback mechanism serves multiple functions: it provides directional guidance, indicates orientation, and conveys navigation status all through tactile sensations. This universal feedback method works equally well in various lighting conditions, making the system adaptable to both indoor and outdoor environments without requiring separate feedback channels
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 efficient navigation in challenging environments by providing palpable or visible feedback that is easy to detect, reducing the need for map interpretation and verbal instructions, while conserving battery power.
Implementation Method 1
sensors of a mobile device, such as one or more of an accelerometer, magnetometer, and gyroscope sensors may be utilized to determine a direction, altitude, and/or orientation of the device
Implementation Method 2
sensors of a mobile device, such as one or more of an accelerometer, magnetometer, and gyroscope sensors may be utilized to determine a direction, altitude, and/or orientation of the device
Implementation Method 3
sensors of a mobile device, such as one or more of an accelerometer, magnetometer, and gyroscope sensors may be utilized to determine a direction, altitude, and/or orientation of the device
Implementation Method 4
the mobile device may provide feedback in the form of vibrations of the mobile device
Implementation Method 5
directional feedback may be communicated to the user visually. For example, directional feedback may be communicated to the user in the form of a high intensity light, e.g., using one or more strobe LED (light-emitting diodes) of the mobile device
Data Source
AI summary
This disclosure is directed to providing directional feedback to a user. For example, this disclosure describes techniques for determining at least one characteristic of a device in space. For example, a device may be configured to determine, using one or more sensors, one or more characteristics of the device in space. For example, the device may be configured to determine one or more of a direction, and/or geographical position of the device as pointed by a user in space. The device may compare one or more of the determined one or more characteristics of the device in space to a desired destination or path specified by the user, and provide the user with directional feedback if the determined one or more characteristics of the device in space are consistent with the desired destination or path.