Sound Wave Modulation for Portable Device Information Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current data broadcast systems are limited to displaying information on television screens and cannot be used to provide information to portable devices like smartphones, which users rely on for information acquisition.
Innovation Solution
An information-providing system that uses sound waves to transmit identifying information, allowing portable terminal devices to demodulate and access content servers via an information-communication network, enabling push-type information supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data broadcast is used to provide information on television screen, then information can be displayed to users, but the information cannot be carried by users to other places or transmitted to portable devices
Solution Approach 1:
The patent introduces sound waves as an intermediary medium to carry identifying information from the broadcast to portable devices. The sound output device modulates identifying information onto sound waves, which are then received and processed by portable terminals, enabling information transmission without requiring direct visual display or complex user intervention.
Solution Approach 2:
The patent replaces the traditional visual display mechanism with an acoustic field-based transmission system. Instead of relying on users to visually perceive and manually interact with information on a television screen, the system uses sound waves to automatically transmit identifying information to portable devices, substituting the mechanical/visual interaction with acoustic field interaction.
2Adaptability or versatility
If identifying information is modulated into sound waves and transmitted to portable devices, then information can be provided to users' portable terminals, but the system complexity increases with multiple components
Solution Approach 1:
The patent makes the sound output device universal by enabling it to perform both its traditional function of outputting broadcast sound and the additional function of modulating and transmitting identifying information. The sound waves serve dual purposes: carrying audio content and carrying identifying information, thereby reducing the need for separate transmission components.
Solution Approach 2:
The patent merges the information transmission function with the existing sound broadcast infrastructure. The identifying information is combined with the sound waves that are already being transmitted for broadcast purposes, consolidating multiple functions into a single transmission medium and reducing overall system complexity.
3Ease of operation
If sound waves are used to transmit identifying information, then push-type information supply is enabled without complex user manipulation, but the measurement and detection of sound-based identifying information becomes difficult
Solution Approach 1:
The portable terminal device performs self-service by automatically detecting, demodulating, and processing the identifying information from sound waves without requiring user intervention. The device autonomously extracts the identifying information, resolves it to obtain content information, and initiates appropriate responses, eliminating the need for users to manually search or select information.
Solution Approach 2:
The system implements feedback mechanisms where the portable terminal device continuously monitors the sound output, extracts identifying information, and automatically responds by accessing content servers and displaying relevant information. This closed-loop feedback system ensures that information is automatically provided based on the sound input without requiring ongoing user manipulation.
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 users to access desired content or content servers using sound waves, facilitating information provision to portable devices without complex user manipulation.
Implementation Method 1
a sound output device adapted to output, as a sound wave, identifying information which is modulated into a sound signal
Implementation Method 2
a portable terminal device that includes a sound receiving section adapted to receive the sound wave outputted from the sound output device
Implementation Method 3
a demodulating section adapted to demodulate the identifying information from the received sound wave
Data Source
AI summary
Provided is an information-providing system whereby a variety of information can be provided using a sound to a portable terminal device used by a user. The information-providing system includes a sound output device outputting, as a sound wave, identifying information modulated into a sound signal, an identifying-information resolution server, connected to an information-communication network, for identifying, based on the identifying information, address information for accessing a content server connected to an information-communication network; and a portable terminal device including a sound receiving section for receiving the sound wave outputted by the sound-emitting device, a demodulating section for demodulating the identifying information from the received sound wave, a resolution section for sending the demodulated identifying information to the identifying-information resolution server and acquiring the address information, and an accessing section for accessing the content server using the acquired address information.