Voice Remote Control via SIP for Set-Top Box Navigation
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Solution Overview
Problem
Existing set-top box control systems rely on infrared remote controls, which limit user interaction to keypad inputs, lacking the ability to efficiently process voice commands for navigating multimedia content.
Innovation Solution
A remote control with a microphone that sends spoken audio signals to a voice application facility for speech recognition, allowing users to issue voice commands to control set-top boxes, which then execute commands to display media content on connected televisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If infrared remote control with keypad is used, then device complexity is reduced and ease of manufacture is improved, but ease of operation is worsened due to limited interaction methods
Solution Approach 1:
The patent replaces the mechanical keypad input system with a voice-based acoustic input system. The remote control incorporates a microphone to capture voice commands, which are then transmitted to the set-top box for processing. This substitution enables more natural and efficient user interaction while maintaining relatively simple device architecture.
2Ease of operation
If voice recognition is implemented, then ease of operation is improved through natural voice commands, but device complexity increases due to additional components and processing requirements
Solution Approach 1:
The patent extracts the voice recognition processing function from the remote control itself and relocates it to the set-top box. The remote control only needs to capture and transmit voice signals, while the complex speech recognition and command interpretation are performed by the set-top box's processor. This extraction reduces the complexity of the remote control while preserving voice command functionality.
3Productivity
If traditional infrared control is used, then reliability of communication is maintained, but productivity is reduced due to slower navigation through program guide
Solution Approach 1:
The patent replaces the manual keypad navigation method with voice-based direct commands. Users can speak natural language commands such as 'show me sports programs' or 'find movies starring John Doe,' which the system interprets and executes directly. This substitution dramatically reduces the time required to navigate through the program guide and select content, significantly improving productivity while reducing time loss.
Data Source
AI summary
A method may include receiving, via a Session Initiation Protocol (SIP) session over a wireless fidelity (Wi-Fi) channel, a digital audio signal from a remote control configured to receive audible information; terminating, responsive to receiving the digital audio signal, the SIP session; converting the digital audio signal into text based on a number of speech grammars corresponding to program guide information; obtaining, using the program guide information, a matching set of program guide entries related to the text to determine command information corresponding to the audible information; sending, via hypertext transfer protocol or file transfer protocol, the command information to a set-top box; and generating, at the set-top box responsive to receiving the command information, a display indicative of the matching set.