Multimode Handset Protocol Switching for Voice Quality
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Solution Overview
Problem
Current wireless communication technologies, such as WiFi, suffer from poor voice quality and security issues, while cordless telephones offer better voice quality but are limited in range and require costly infrastructure for home use.
Innovation Solution
A multimode handset capable of switching automatically between mobile telephone communications protocols and cordless telephone protocols, including analog and Internet Protocol, to optimize voice quality and security by seamlessly transitioning between communication paths based on signal strength within a home proximity zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cordless telephone is used within home proximity zone, then voice quality is improved, but range is limited and infrastructure cost increases
Solution Approach 1:
The handset is designed with dual communication capabilities - it can operate as a mobile telephone using cellular networks and as a cordless telephone using local POTS infrastructure. This multi-functionality allows the same device to adapt between different communication modes depending on the user's location and needs, resolving the contradiction between voice quality (better in cordless mode) and range (limited in cordless mode).
Solution Approach 2:
The system dynamically switches between mobile and cordless communication modes based on the handset's location and signal conditions. When within home proximity zone with available POTS infrastructure, it operates in cordless mode for optimal voice quality. When outside this zone, it automatically transitions to mobile mode to maintain connectivity, thus adapting the communication path based on real-time conditions.
2Ease of manufacture
If WiFi communications are used, then cost is reduced, but voice quality and security deteriorate
Solution Approach 1:
The patent uses the traditional POTS (Plain Old Telephone Service) infrastructure as an intermediary communication path between the handset and the network. Instead of directly using WiFi for voice communication, the system routes calls through the reliable POTS network when available, thereby maintaining high voice quality and security while still benefiting from the lower cost of WiFi for data communications.
3Adaptability or versatility
If automatic switching between communication protocols is implemented, then adaptability is improved, but device complexity increases
Solution Approach 1:
The handset autonomously monitors its own location and signal conditions to determine the optimal communication mode. It automatically selects whether to use mobile or cordless protocols without requiring user intervention or complex manual configuration. The device self-manages the switching process based on pre-configured parameters and real-time conditions, reducing the operational complexity despite maintaining high adaptability.
Data Source
AI summary
A multimode handset and method that includes a first communications path adapted to communicate using a mobile telephone communications protocol, a second communications path adapted to communicate using a local cordless communications protocol, and a processing unit in communication with the first communications path and the second communications paths and configured to switch between the first communications path and the second communications path during a telephone call.