Waterproof Bag Bidirectional Audio for Clear Calls
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Solution Overview
Problem
Waterproof bags limit call quality and require additional devices for communication, such as text messaging or Bluetooth headphones, due to the inability to transmit sound effectively between the interior and exterior of the bag.
Innovation Solution
A waterproof bag design with sound receivers and generators on both inner and outer sides, coupled with an acoustics module for audio signal processing, allowing sound transmission between the user and the electronic device within the bag.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic apparatus is placed in a waterproof bag to avoid soaking, then waterproofing is improved, but call quality deteriorates and communication becomes limited
Solution Approach 1:
The waterproof bag is segmented into distinct functional zones with separate sound receivers and sound generators positioned at different locations. The first sound receiver is arranged on the inner side to capture sounds from the electronic apparatus, while the second sound receiver on the outer side captures external sounds, enabling differentiated audio processing for communication
Solution Approach 2:
The acoustics module serves as an intermediary between the internal and external acoustic environments. It processes sounds captured by the sound receivers, performs audio signal processing including echo cancellation and noise reduction, and drives the sound generators to reproduce the processed sounds, thereby mediating effective communication through the waterproof barrier
2Ease of operation
If sound receivers and generators are added to enable communication, then call quality is improved, but device complexity increases
Solution Approach 1:
Multiple acoustic components (first sound receiver, first sound generator, second sound receiver, second sound generator) and the acoustics module are integrated into a unified waterproof bag system. These components work together as a coordinated whole to provide bidirectional sound transmission while maintaining the waterproof integrity of the bag
Solution Approach 2:
The acoustics module performs multiple functions including receiving sounds from both internal and external environments, performing audio signal processing (echo cancellation, noise reduction), and driving multiple sound generators. This multi-functional design consolidates what could be separate complex subsystems into a single integrated unit
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables clear communication through the electronic device while maintaining waterproof integrity by processing internal and external sounds, reducing echo and noise interference.
Implementation Method 1
a first sound receiver (20) arranged on an inner side of the bag body (10) and configured to receive an internal sound on the inner side of the bag body (10)
Implementation Method 2
a first sound generator (30) arranged on an outer side of the bag body (10) and configured to play back the internal sound
Implementation Method 3
a second sound receiver (40) arranged on the outer side of the bag body and configured to receive an external sound on the outer side of the bag body (10)
Implementation Method 4
a second sound generator (50) arranged on the inner side of the bag body and configured to play back the external sound
Implementation Method 5
The acoustics module is arranged on the bag body and is electrically connected to the first sound receiver, the first sound generator, the second sound receiver, and the second sound generator
Data Source
AI summary
A waterproof bag is applicable to accommodating an electronic apparatus, and includes a bag body, a first and a second sound receiver, a first and a second sound generator, an acoustics module, and a connecting line. The first sound receiver is on an inner side of the bag body and is configured to receive an internal sound. The first sound generator is on an outer side of the bag body and is configured to play back the internal sound. The second sound receiver is on the outer side of the bag body and is configured to receive an external sound. The second sound generator is on the inner side of the bag body and is configured to play back the external sound. The acoustics module performs audio signal processing on the internal sound and the external sound. The electronic apparatus supplies power to the acoustics module through the connecting line.