Service Providing Device Voice Search Fallback
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Solution Overview
Problem
Existing voice search systems fail to accurately provide the intended service when users make incorrect utterances, leading to the selection of unsuitable services due to varying conditions for different services.
Innovation Solution
A service providing device with a receiver, selection unit, inquiry execution unit, and switching unit that receives user utterances, selects a target content device, and sequentially inquires about order acceptability from other devices in the same or analogous category if the initial device rejects the order, allowing for switching to an acceptable device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If a voice search system selects a service based on user utterance without verification, then the service provision speed is improved, but the accuracy of service matching deteriorates when users make incorrect utterances
Solution Approach 1:
The system performs preliminary verification by sending inquiry signals to multiple content devices before final service provision. The selection unit checks whether the selected content device can actually provide the intended service by verifying its service provision capabilities in advance, preventing incorrect service matching while maintaining quick response times.
Solution Approach 2:
The system implements a feedback mechanism where the selection unit receives responses from content devices about their ability to provide the requested service. Based on this feedback, the system can adjust its selection and inform the user of the actual service that will be provided, improving matching accuracy without significantly increasing response time.
2Measurement precision
If the system verifies service availability by checking multiple content devices, then the service matching accuracy is improved, but the system complexity increases
Solution Approach 1:
The selection unit serves multiple functions: it selects content devices based on user utterances, verifies service availability by sending inquiry signals, receives and processes responses, and determines final service provision. This multi-functionality reduces the need for separate verification modules, maintaining system simplicity while improving service matching accuracy.
Solution Approach 2:
The verification process is segmented into discrete steps: sending inquiry signals to multiple content devices, receiving responses, evaluating service availability, and making final selection. This segmentation allows the system to manage complexity through structured, modular processing while achieving accurate service matching.
3Reliability
If the system checks multiple content devices to verify order acceptability, then the reliability of service provision is improved, but the response time increases
Solution Approach 1:
The system performs preliminary checks by sending inquiry signals to multiple content devices in parallel before final service provision. This advance verification ensures that the selected device can reliably provide the service, reducing the need for subsequent corrections or re-attempts, thereby maintaining quick overall response times while improving reliability.
Solution Approach 2:
The system checks a limited number of content devices (not all possible devices) to verify service availability. By checking a sufficient but not exhaustive number of devices, the system achieves adequate reliability for service provision while minimizing the time consumed by the verification process.
Data Source
AI summary
A service providing device includes a receiver configured to receive utterance content information uttered by a user; a selection unit configured to select a target content device which would accept an order from the user among a plurality of content devices that execute an order acceptance process based on the utterance content information; an inquiry execution unit configured to sequentially execute an inquiry as to whether or not the order from the user is acceptable for the other content devices, in a case where an unacceptance response is received from the target content device, based on the utterance content information uttered to the target content device which has been received together with the unacceptance response; and a switching unit configured to reset the content device that transmits an acceptance response as the target content device in a case where the acceptance response is received.