Wireless Audio Adapter for Portable Media Player Emulation
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Solution Overview
Problem
Portable media players lack wireless communication capabilities with remote speakers, leading to limitations such as interference, noise introduction, and proximity constraints with existing FM modulators and cable connections, which affect audio quality and user convenience.
Innovation Solution
A portable media player emulator system utilizing short-range wireless data transmission technologies like Bluetooth, WiFi, or infrared for wireless communication between a device and an accessory, including a docking cradle and an adaptor that converts audio signals for bidirectional communication, enabling wireless audio transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If FM modulators are used to connect PMP to remote speaker systems, then wireless communication is enabled, but audio quality deteriorates due to interference, noise introduction, and frequency limitations
Solution Approach 1:
The patent introduces an intermediary device (wireless audio transmitter) that acts as a mediator between the PMP and the remote speaker system. This transmitter receives audio signals from the PMP via cable connection and retransmits them wirelessly to the speaker system, thereby isolating the PMP from direct wireless interference while enabling wireless communication. The intermediary handles the wireless transmission responsibilities, protecting the audio quality at the source.
Solution Approach 2:
The patent replaces the problematic FM modulation mechanism with a different wireless transmission mechanism. Instead of using FM modulators that are susceptible to frequency interference and noise, the system uses a dedicated wireless audio transmitter that employs alternative transmission methods, substituting the flawed mechanical/electrical system with a more robust wireless communication system designed specifically for audio transmission.
2Object-affected harmful factors
If cables or direct connections are used to connect PMP to remote speaker systems, then audio quality is improved, but proximity constraints are imposed
Solution Approach 1:
The patent merges the advantages of both cable connections and wireless communication into a single hybrid system. The system combines cable connection (for high-quality audio extraction from PMP) with wireless transmission (for freedom of movement). By merging these two approaches, the system achieves both high audio quality and proximity independence, as the cable connection ensures quality while the wireless transmitter eliminates the need for the PMP to remain physically connected to the speaker system.
3Speed
If FM modulators broadcast on traditional FM frequencies, then wireless transmission is achieved, but frequency interference and noise are introduced
Solution Approach 1:
The patent changes the transmission parameters by abandoning traditional FM frequencies and modulation methods. Instead, the wireless audio transmitter uses different frequency ranges and modulation schemes optimized for audio transmission. This parameter change allows the system to achieve wireless transmission capability while avoiding the frequency interference and noise problems inherent in traditional FM broadcasting, as the new parameters are specifically suited for high-fidelity audio transfer.
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
This solution provides improved audio quality and convenience by allowing wireless communication between devices and accessories without proximity constraints, reducing noise and interference, and enabling the use of accessories as speakerphones.
Implementation Method 1
a wireless communicator associated with the device, the wireless communicator being adapted to wirelessly transmit at least a portion of the audio information represented by the first signal
Implementation Method 2
an adaptor configured to physically and communicatively couple with the connector of the accessory, the adaptor being adapted to wirelessly receive a transmission from the wireless communicator associated with the device, and to convert the at least a portion of the audio information into an audio signal
Data Source
AI summary
A system for facilitating wireless communication between an accessory and a device comprising a device capable of converting at least an audio signal into a signal transmittable by a wireless communication means; a wireless communication means associated with the device capable of transmitting the converted signal; an accessory, including a docking cradle comprising a plurality of pins, wherein at least one pin on the docking cradle is capable of receiving an audio signal; and an adaptor capable of communicatively coupling with the accessory's docking cradle, the adaptor being capable of receiving the transmission from the wireless communication means associated with the device and converting the signal into an audio signal that can be received by the accessory via the docking cradle.