Push-to-talk Audio Control for Full-Duplex Communications
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Solution Overview
Problem
Users of communications devices face difficulties in operating mute functionalities during full-duplex communications sessions due to controls being deeply nested in menus and the toggle operation being problematic, leading to unintentional audio transmissions.
Innovation Solution
Implementing a push-to-talk functionality where communications devices are biased to disable audio transmissions by default, enabling them only when an audio transmission enable control is actively pressed, such as a mechanical button, to prevent accidental transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mute functionality is implemented as a toggle control located deep within menu hierarchy, then the device can control audio transmission, but the ease of operation deteriorates due to difficulty in locating and activating the control
Solution Approach 1:
The mute functionality is extracted from the deep menu hierarchy and placed on the main display screen as a prominent visual element. The display shows a large visual indicator (such as a mouth icon or text) that is easily visible and accessible to users during communications sessions, eliminating the need to navigate through multiple menu levels to locate the mute control.
Solution Approach 2:
A visual indicator on the display serves as an intermediary between the mute control mechanism and the user. This visual element provides immediate feedback about the mute state and serves as an intuitive interface for users to understand and control audio transmission without needing to access complex menu structures.
2Adaptability or versatility
If toggle operation is used for mute control, then the device can switch between muted and unmuted states, but unintentional audio transmission increases due to accidental toggles and forgotten reengagement
Solution Approach 1:
Instead of using a toggle switch that requires active engagement to change state, the system inverts the control mechanism to require intentional activation. The mute functionality is designed to remain active by default and only deactivates when the user deliberately presses a button or interacts with the control, preventing accidental unmuting during communications sessions.
Solution Approach 2:
The system automatically maintains the muted state without requiring continuous user intervention. Once the mute function is activated, it persists automatically until deliberately deactivated by user action, eliminating the need for users to continuously manage the mute state and preventing forgotten reengagement issues.
3Ease of operation
If mute control is inadvertently selected momentarily, then the device toggles to unmuted state, but audio signals are unintentionally transmitted until mute is reengaged
Solution Approach 1:
The control mechanism is inverted from a toggle that activates easily but deactivates difficultly to a system that requires deliberate activation to change from muted to unmuted state. This inversion ensures that momentary or accidental selections do not trigger unintended audio transmission, as the control is designed to resist accidental activation while maintaining responsiveness to intentional user input.
Data Source
AI summary
In one embodiment, a communications device joins a full-duplex communications session and disables, at a first time, audio transmission within the full-duplex communications session. The communications device detects, at a second time after the first time, that an audio transmission enable control is in a first state and enables audio transmission within the full-duplex communications session in response to detecting that the audio transmission enable control is in the first state. At a third time after the second time, the communications device detects that the audio transmission enable control is in a second state and disables audio transmission within the full-duplex communications session in response to detecting that the audio transmission enable control is in the second state.