Audio Signal Validation for Bidirectional Device Communication
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Solution Overview
Problem
Devices equipped for uni-directional communication lack the capability to respond to received commands or initiate communications with upstream devices, limiting services such as bi-directional services like pay-per-view and video on demand.
Innovation Solution
The method involves configuring devices to transmit and receive audio signals containing embedded information like user rights and validation data, enabling bi-directional communication and personalization of user experiences through audio fingerprinting and validation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices use uni-directional communication, then device complexity is reduced, but service capability and user interaction are limited
Solution Approach 1:
The patent introduces an audio signal as an intermediary carrier to transmit validation data from the downstream device back to the upstream device. This mediator enables bidirectional communication functionality without requiring complex direct response circuits in the downstream device, thus improving service capability while maintaining relatively simple device structure.
Solution Approach 2:
The audio output component of the downstream device is made multi-functional by using it not only for audio playback but also as a communication channel for transmitting validation data. This allows the device to participate in bidirectional services like pay-per-view and video on demand without adding dedicated communication hardware, thereby enhancing service capability while avoiding increased device complexity.
2Adaptability or versatility
If devices are configured with bi-directional communication capability, then service support is improved, but device complexity increases
Solution Approach 1:
The downstream device uses its existing audio output components to generate and transmit the validation data signal, rather than requiring a separate dedicated transmission mechanism. This self-service approach allows the device to achieve bidirectional communication functionality using already-present hardware, improving service support while minimizing increases in device complexity.
Solution Approach 2:
The patent changes the functional parameter of the audio output component from solely audio playback to also including data transmission capability. By modifying how the existing component is utilized rather than adding new components, the system achieves enhanced service support with minimal impact on device complexity.
3Ease of operation
If validation data is transmitted through audio signals, then device response capability is enabled, but signal processing complexity increases
Solution Approach 1:
The patent replaces complex electrical communication circuits with an acoustic signal transmission mechanism. By using audio signals that can be processed through standard audio components and microphones, the system enables device response capability while utilizing well-established, relatively simple audio processing techniques rather than complex dedicated data transmission hardware.
Data Source
AI summary
Systems and methods for configuring devices are disclosed. One method can comprise receiving an output signal representing user rights relating to a requested data and processing the output signal to generate validation data. The method can also comprise transmitting the validation data to a source of the requested data, wherein the validation data facilitates the transmission of the requested data.


