Ultrasonic Spatial Perception for Quiet Environments
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Solution Overview
Problem
The use of audible frequency inspection sounds for spatial perception is not suitable in quiet environments, as it disrupts the required quietness.
Innovation Solution
An information processing device and method that utilizes ultrasonic frequency bands to emit and receive signals, converting ultrasonic response signals into audible range signals to generate an acoustic effect for spatial perception without the need for audible inspection sounds, allowing users to perceive their surroundings through sound and vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If audible frequency inspection sounds are used for spatial perception, then users can detect objects and surroundings, but it disrupts the required quietness in the environment
Solution Approach 1:
The patent uses ultrasonic waves as an intermediary medium to obtain spatial information without directly using audible sounds. The ultrasonic inspection signal serves as a mediator that captures environmental acoustics characteristics, which are then applied to audible reproduced signals, allowing spatial perception without emitting audible inspection sounds that would disrupt quietness.
Solution Approach 2:
The patent replaces the mechanical/acoustic system of emitting audible inspection sounds with an ultrasonic system. By substituting the frequency band from audible range to ultrasonic range, the system achieves spatial perception functionality while eliminating the harmful effect of audible sound emission in quiet environments.
2Object-affected harmful factors
If ultrasonic inspection signals are used instead of audible sounds, then environmental quietness is maintained, but users need conversion to audible range to perceive the spatial information
Solution Approach 1:
The patent changes the frequency parameter of the inspection signal from audible range to ultrasonic range, and subsequently changes the frequency parameter of the captured response back to audible range through conversion. This parameter transformation allows the system to maintain quietness during inspection while still providing audible output for user perception.
Solution Approach 2:
The ultrasonic response signal acts as an intermediary that carries spatial information from the environment. This intermediary signal is then processed and converted to audible range, serving as a bridge between the silent ultrasonic measurement process and the audible perception needed by users.
3Measurement precision
If audible inspection sounds are emitted continuously for spatial awareness, then users can perceive changes in surroundings, but it prevents continuous use of music or content
Solution Approach 1:
The patent employs periodic ultrasonic inspection signals instead of continuous audible sounds. The ultrasonic signals are emitted at specific intervals to capture spatial information, allowing music or content to play continuously in between measurements. This periodic approach maintains surroundings detection capability while preserving content playback continuity.
Solution Approach 2:
The ultrasonic inspection signal serves as a periodic intermediary that periodically updates spatial information without continuously interfering with content playback. By using this intermediary mechanism, the system achieves both surroundings detection and uninterrupted music/content usage.
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 spatial perception in quiet environments by adding acoustic effects to reproduced sounds, allowing users to detect objects and changes in their surroundings without disturbing the quietness, preventing collisions or falls, and allowing continuous use of music or content.
Implementation Method 1
an ultrasonic response signal returned from a space with respect to an inspection signal of an ultrasonic frequency band that is emitted into the space
Implementation Method 2
makes changes to a reproduced signal to be perceived by a user, based on an ultrasonic response signal... according to a situation of the space
Data Source
AI summary
The present technique relates to an information processing device, an information processing method, and a program that enable spatial perception suitable for places where quietness is required.Changes are made to a reproduced signal to be perceived by a user, based on an ultrasonic response signal returned from a space with respect to an inspection signal of an ultrasonic frequency band that is emitted into the space, according to a situation of the space.