Audio Jack Detect Contact Positioning for Immediate Switching
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Solution Overview
Problem
Existing audio jacks experience delays in transitioning audio output from device speakers to headphones due to the decoupling of latch and detect contact structures, leading to potential system malfunctions and user inconvenience.
Innovation Solution
Decoupling the latch and detect contact structures in the audio jack allows for immediate detection of full plug insertion without timing delays, ensuring seamless audio output switching once the plug is fully engaged.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the latch and detect contact structures are coupled together, then the device complexity is reduced, but the audio output switching is delayed causing system malfunctions
Solution Approach 1:
The patent divides the previously coupled latch and detect contact structures into two independent components. The latch structure engages the plug mechanically, while the detect contact structure separately detects full insertion through electrical contact. This segmentation allows each component to function independently without timing delays, resolving the contradiction between structural simplicity and operational reliability.
2Reliability
If the latch and detect contact structures are decoupled, then the audio output switching reliability is improved, but the device complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism where the detect contact structure acts as a separate mediator that independently detects plug insertion. This intermediary structure receives the plug insertion signal directly without waiting for the latch engagement, enabling immediate audio output switching while maintaining reasonable structural complexity through modular design.
3Speed
If the detect contact is positioned at an intermediate location, then the detection speed is improved, but the measurement precision of full insertion is reduced
Solution Approach 1:
The patent positions the detect contact structure at the distal end of the receptacle in a different spatial dimension relative to the latch structure. This dimensional separation allows the detect contact to engage the plug tip first (providing immediate detection speed) while the latch structure subsequently engages the plug body (ensuring precise full insertion confirmation), thereby resolving the contradiction between speed and precision.
Data Source
AI summary
An electronic device may include an audio jack allowing a peripheral audio output device to be connected to the electronic device by inserting the plug into the jack. The jack may include a receptacle that extends into the housing. A plurality of contacts may be included in the receptacle, arranged along a longitudinal direction of the receptacle. A latch may be installed in the receptacle, at an intermediate location between the proximal end and the distal end of the receptacle, to secure a position of the plug in the receptacle. A detect contact may be positioned at the distal end of the receptacle, separate from the latch. The detect contact may be actuated by the distal end of the tip of the plug to indicate that the plug is fully inserted in the receptacle. Upon actuation of the detect contact, the device may transfer audio output functionality to the peripheral device connected to the device by the plug inserted in the jack.