Delayed Voice Playback for Quiet Vehicle Compartments
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Solution Overview
Problem
Existing methods for silencing vehicle occupants, such as active noise canceling headphones, are not always practical, and individuals in shared or silent vehicle compartments often fail to respect silence, disturbing others.
Innovation Solution
A vehicle system with a microphone, speaker, and processing circuitry that detects sound levels and plays back sound with a predefined delay to annoy the occupant into silence, optionally using cameras for facial expression analysis to adjust silencing based on approval/disapproval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If active noise canceling headphones are used to silence a person, then noise cancellation effect is achieved, but practicality and user comfort deteriorate
Solution Approach 1:
The system uses a speaker as an intermediary device to play back the person's own voice with a time delay, creating an echo effect that discourages talking without requiring the person to wear headphones or other uncomfortable devices. The speaker acts as a mediator between the microphone capturing the voice and the person's hearing, providing a practical and comfortable solution.
Solution Approach 2:
The system implements a feedback mechanism by capturing the person's voice through a microphone and immediately playing it back through a speaker with a predefined time delay. This real-time feedback loop creates an annoying echo effect that naturally discourages the person from continuing to talk, achieving noise cancellation through behavioral modification rather than physical barriers.
2Object-affected harmful factors
If a person is asked to be quiet directly, then silence is achieved, but social politeness and user experience deteriorate
Solution Approach 1:
The system allows the person to silence themselves through the echo effect without needing external intervention or direct requests from others. The annoying feedback loop naturally encourages the person to stop talking on their own, maintaining social politeness while achieving the desired silence. The person self-regulates their behavior in response to the system's feedback.
Solution Approach 2:
The echo feedback system serves as an intermediary that indirectly communicates the need for silence without requiring direct human-to-human communication. Instead of one person asking another to be quiet, the system mediates the situation by providing auditory feedback that naturally discourages talking, preserving social harmony.
3Object-affected harmful factors
If sound playback with time delay is used to silence a person, then silence is achieved politely, but device complexity increases
Solution Approach 1:
The system uses universal components (microphone, speaker, processing circuitry) that can be integrated into existing devices like smartphones or vehicle entertainment systems. These multi-functional components serve both the echo feedback purpose and other standard functions, reducing overall device complexity while achieving the silencing effect.
Solution Approach 2:
The system combines the microphone, processing circuitry, and speaker into an integrated unit that can be embedded within existing devices. By merging these components and their functions into a unified system, the patent reduces the overall complexity and footprint while maintaining the effective silencing capability through echo feedback.
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
Effectively silences occupants discreetly by creating an annoying echo, allowing polite speech and adjusting to ambient noise levels, while respecting short conversations and approved expressions.
Implementation Method 1
playing back the obtained sound of the first person with a predefined time delay by the speaker
Data Source
Figure 1
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AI summary
The disclosure relates to a system (100) for silencing a person, the system (100) comprises a microphone (10a,10b,10c,10d) configured to obtain sound of a first person (1), a speaker (20a,20b,20c,20d) configured to playback sound to the first person (1), a processing circuitry (102a,102b,102c) connected to the microphone (10a,10b,10c,10d) and the speaker (20a,20b,20c,20d) and configured to obtain sound of the first person (1) by the microphone (10a,10b,10c,10d), and play back the obtained sound of the first person (1) with a predefined time delay (td) by the speaker (20a,20b,20c,20d). The disclosure further relates to a method for silencing a person and a computer program product (500).