Multi-wired Antenna for Mobile Headsets
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Solution Overview
Problem
Conventional mobile devices face challenges in receiving good television signals while being portable, as existing antennas often have degraded performance across the wide frequency range required for TV and FM broadcasting, and are not easily integrated into headsets or earphones.
Innovation Solution
Embedding multiple antennas with specific lengths into headsets or earphones, insulated from audio wires, to cover various frequency ranges including VHF, UHF, and FM bands, and using a connection circuit to separate television signals from audio signals, allowing for improved antenna performance and reduced noise interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single antenna is used in mobile devices, then the device structure is simple, but the antenna performance degrades across the wide frequency range required for TV and FM broadcasting
Solution Approach 1:
The patent divides the antenna system into multiple separate antenna elements, each optimized for specific frequency ranges (TV broadcasting, FM radio, etc.). This segmentation allows each antenna to maintain optimal performance in its designated band while collectively covering the entire required spectrum, resolving the contradiction between versatility and complexity.
Solution Approach 2:
The patent integrates multiple antenna functions into a single headset device, making it universally compatible with various mobile devices and capable of receiving multiple types of signals (TV, FM, etc.) through one unified interface. This multi-functionality approach allows the headset to serve as both audio accessory and multi-band antenna.
2Reliability
If conventional antennas are used in mobile devices, then the device volume is larger, but signal reception performance is degraded
Solution Approach 1:
The patent nests the antenna elements within the existing headset structure, integrating them into the cable and connector assembly. This nesting approach allows the antenna functionality to be embedded within the compact headset form factor without requiring additional external space, thus maintaining portability while improving signal reception.
Solution Approach 2:
The patent utilizes the cable length and spatial arrangement of the headset as an additional dimension for antenna design. By optimizing the cable length and configuration, the system achieves effective antenna performance without increasing the device volume, transforming the cable from a simple connector into a functional antenna element.
3Adaptability or versatility
If television signal reception is added to mobile devices, then the functionality is enhanced, but noise and interference increase
Solution Approach 1:
The patent extracts the television signal reception function into a separate antenna system that operates independently from the audio signal path. By separating the RF signal reception from the audio processing, the system reduces mutual interference and noise, allowing TV signal reception without degrading audio quality or introducing excessive electromagnetic interference.
Solution Approach 2:
The patent introduces filtering and shielding components as intermediaries between the antenna elements and the mobile device circuitry. These intermediaries selectively pass desired frequency ranges while blocking unwanted interference and noise, thus enabling enhanced functionality while maintaining signal purity.
4Reliability
If whip antennas are used for television signal reception, then the antenna length is sufficient for good reception, but the mechanical robustness and device volume are compromised
Solution Approach 1:
The patent nests the antenna elements within the protected headset cable and connector housing, shielding them from mechanical damage. This nesting provides mechanical protection while maintaining the effective electrical length of the antenna, thus preserving both robustness and reception performance.
Solution Approach 2:
The patent utilizes the flexible headset cable as a protective sheath for the antenna elements. This flexible enclosure provides mechanical strength and durability while allowing the antenna to maintain its electrical characteristics, replacing the need for rigid whip antennas that are vulnerable to damage.
Data Source
AI summary
The present invention is directed to mobile devices. More specifically, embodiments of the present invention provide one or more antennas embedded into headsets and/or earphone for mobile devices. In an embodiment, an antenna wire having a length of about 100 mm to 150 mm is implement as a part of a headset or an earphone that has an overall length of at least 90 cm, where the antenna wire is substantially insulated from the audio wire(s). The headset or earphone is connected to a mobile device that receives television signals from the antenna. In a specific embodiment, a mobile device includes a connection circuit that is configured to separate television signals form audio signals. In an exemplary embodiment, various components of the mobile device positioned at predetermine location away from the connection circuit to reduce noise and/or interference.