Imaging Apparatus Session Initiation via ONVIF Notifications
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Solution Overview
Problem
The ONVIF standard does not support session establishment initiated by an imaging apparatus, limiting bidirectional audio communication capabilities, especially in wearable camera scenarios where user-initiated session requests are necessary, and preventing session re-establishment after closure by the client apparatus.
Innovation Solution
An imaging apparatus with an establishment unit to initiate a session with a client apparatus, an acceptance unit to accept user requests, and a transmission unit to send ONVIF-compliant notifications requesting session establishment, enabling session initiation and re-establishment based on user input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the ONVIF standard is used for session establishment, then compatibility with client apparatus is improved, but the ability to initiate sessions from the imaging apparatus is lost
Solution Approach 1:
The patent inverts the traditional RTSP session initiation model where only the client could start sessions. The imaging apparatus now sends an event notification to the client, which then responds with an RTSP DESCRIBE request, effectively reversing who initiates the session while maintaining ONVIF standard compliance.
Solution Approach 2:
The patent introduces an event notification as an intermediary mechanism between the imaging apparatus and client apparatus. This notification serves as a trigger that enables the imaging apparatus to indirectly initiate sessions through the client's response, bridging the gap between ONVIF standard constraints and desired functionality.
2Reliability
If RTSP session establishment is restricted to client-initiated requests, then standard protocol compliance is improved, but user-initiated audio communication from wearable camera is prevented
Solution Approach 1:
The patent makes the session initiation process dynamic by allowing the imaging apparatus to send event notifications that trigger client responses. This creates a flexible system where session initiation can be requested from either side depending on the situation, while still following the RTSP protocol flow.
Solution Approach 2:
The imaging apparatus performs a preliminary action by sending an event notification before the actual RTSP session establishment. This preliminary event triggers the client to send the formal RTSP DESCRIBE request, preparing the system for user-initiated communication while maintaining protocol compliance.
3Ease of operation
If session re-establishment is only possible through client operation, then session management control is improved, but wearable camera autonomy is reduced
Solution Approach 1:
The patent enables the imaging apparatus to request session re-establishment autonomously by sending event notifications to the client. This self-service capability allows the wearable camera to independently initiate session recovery without requiring client intervention, enhancing camera autonomy while maintaining controlled session management.
Data Source
AI summary
An imaging apparatus capable of audio communication with a client apparatus in an established session with the client apparatus, the imaging apparatus establishing a session with the client apparatus, accepting a request for establishment of the session from a user, transmitting, in a case where the request for establishment of the session is accepted, a notification compliant with the Open Network Video Interface Forum (ONVIF) standard to the client apparatus as a notification that requests establishment of the session.