Speech Input Device Activation Command Blocking
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Solution Overview
Problem
During remote interactions like web conferencing or video conferencing, there is a risk that unintended process commands are transmitted from one speech input device to a server, leading to potential misinterpretation of user intentions.
Innovation Solution
A speech input device with a controller that determines if received speech data indicates an activation command, and if so, prohibits the transmission of subsequent speech data to the server for a predetermined period, preventing unintended process command transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If speech data is transmitted freely during remote interaction, then communication efficiency is maintained, but unintended process commands may be transmitted to the server
Solution Approach 1:
The system performs preliminary detection of activation commands in received speech data before allowing transmission of subsequent speech data. By proactively identifying activation commands and setting a prohibition flag, the system prevents unintended process commands from being transmitted, thus ensuring accurate user intent recognition while maintaining communication efficiency through selective transmission control.
2Reliability
If speech transmission is continuously monitored for activation commands, then unintended commands are suppressed, but system complexity increases
Solution Approach 1:
The controller continuously monitors received speech data for activation commands and sets a prohibition flag when detected. This preliminary detection mechanism enables reliable prevention of unintended command transmission while maintaining relatively simple control logic through straightforward conditional processing.
Solution Approach 2:
The prohibition flag acts as an intermediary mechanism between speech reception and speech transmission. This simple binary state variable mediates the control flow, enabling reliable command prevention without requiring complex control logic. The flag serves as a straightforward gatekeeper that either permits or blocks transmission based on activation command detection.
3Reliability
If a prohibition period is set after detecting activation command, then unintended process commands are blocked, but transmission delay occurs
Solution Approach 1:
The system implements a periodic prohibition mechanism where transmission is blocked for a predetermined time period after detecting an activation command. This periodic blocking reliably prevents unintended commands during remote interaction while limiting time loss through a fixed, predictable prohibition duration rather than continuous blocking.
Data Source
AI summary
A speech input device includes a speech input transducer that inputs first speech, a first communicator that transmits first speech data corresponding to the first speech to an external device, a second communicator that receives second speech data from a speech transmission-reception device, a speech output transducer that outputs second speech corresponding to the second speech data, and a controller that generates the first speech data from the first speech and generates the second speech from the second speech data. The controller determines whether or not the second speech data indicates an activation command, and in a case of determining that the second speech data indicates the activation command, the control module prohibits a transmission of the first speech data to the external device for a predetermined period.