Bluetooth Headset Voice Interface Using Remote Speech Recognition
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Solution Overview
Problem
Small electronic devices like Bluetooth headsets face challenges in user interaction due to their compact size, which limits the number of buttons and display, making it difficult for users to control functions without referring to the connected device, defeating the purpose of a hands-free experience.
Innovation Solution
A wireless electronic device with a microphone for speech input, a speech recognizer, and a wireless transceiver that allows users to issue voice commands, which are recognized and translated into actions, such as accessing resources or establishing communication channels with other devices, enabling hands-free operation and interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the electronic device is made smaller to improve portability and comfort, then the form factor is improved, but the number of buttons and display capabilities deteriorate
Solution Approach 1:
The patent replaces mechanical buttons and visual displays with a voice-based interface. The Bluetooth headset uses speech recognition to interpret user commands and speech synthesis to provide feedback, eliminating the need for physical buttons and small displays. This allows the device to remain small while maintaining full interaction capability.
2Device complexity
If the number of buttons is reduced to maintain small form factor, then the device complexity is reduced, but the functionality and control capability deteriorate
Solution Approach 1:
The voice interface serves multiple functions that would traditionally require separate buttons or displays. A single voice command system handles calling, messaging, music control, navigation, and information queries, making the headset universally capable across diverse functions without adding physical controls.
Solution Approach 2:
The patent introduces a remote server as an intermediary that processes complex speech recognition and provides comprehensive functionality. The headset captures speech and sends it to the remote server, which returns processed results, enabling access to extensive functionality without adding buttons or local processing complexity.
3Speed
If speech recognition is implemented locally to improve response time, then the speed is improved, but the device complexity and computational requirements worsen
Solution Approach 1:
The speech recognition system is segmented into two parts: local speech capture and remote speech processing. The headset handles only the simple task of capturing and transmitting speech, while the computationally intensive speech recognition and synthesis are performed on the remote server. This division allows fast local response while maintaining complex processing capabilities remotely.
Data Source
AI summary
Systems and methods for improving the interaction between a user and a small electronic device such as a Bluetooth headset are described. The use of a voice user interface in electronic devices may be used. In one embodiment, recognition processing limitations of some devices are overcome by employing speech synthesizers and recognizers in series where one electronic device responds to simple audio commands and sends audio requests to a remote device with more significant recognition analysis capability. Embodiments of the present invention may include systems and methods for utilizing speech recognizers and synthesizers in series to provide simple, reliable, and hands-free interfaces with users.