T.38 Facsimile Control via Attribute-Based Packet Optimization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication apparatuses conforming to ITU-T Recommendations T.38 face issues in real-time network facsimile communications due to differences in manufacturer, model, and version of the communication control program of other party's apparatus, leading to inconsistent and unreliable connections.
Innovation Solution
A communication apparatus and method that acquires attribute information of the other party's apparatus during the call connection procedure and adjusts communication control parameters accordingly to ensure flexible and reliable real-time network facsimile communication via a packet network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communication apparatuses strictly conform to ITU-T Recommendations T.38, then standardization is improved, but adaptability to different manufacturers and models deteriorates
Solution Approach 1:
The patent applies preliminary action by acquiring attribute information of the other party's apparatus during the call connection procedure (SETUP/CONNECT messages) before actual facsimile communication begins. The communication control program then determines packet sending intervals, packet lengths, and packet types in advance based on this attribute information, allowing the system to adapt to different manufacturers and models without increasing operational complexity during data transmission.
2Reliability
If fixed packet transmission parameters are used, then communication control is simplified, but reliability of real-time communication deteriorates
Solution Approach 1:
The patent applies dynamics by making packet transmission parameters variable rather than fixed. The communication control program dynamically adjusts packet sending intervals, packet lengths, and packet types based on attribute information acquired from the other party's apparatus. This dynamic adaptation ensures reliable real-time communication across different device types while maintaining manageable control complexity through automated parameter selection.
3Adaptability or versatility
If attribute information acquisition is implemented, then adaptability to other party's apparatus is improved, but communication control complexity increases
Solution Approach 1:
The patent applies feedback by utilizing attribute information that is already exchanged during the standard call connection procedure (SETUP and CONNECT messages). The communication control program processes this feedback information to determine appropriate packet transmission parameters, enabling flexible adaptation to different manufacturers and models without adding significant complexity, as the attribute information is already part of the existing communication protocol exchange.
Data Source
AI summary
A communication apparatus is adapted to carry out a real-time network facsimile communication with an other party's apparatus via a packet network based on ITU-T Recommendations T.38. The communication apparatus is provided with an attribute information acquiring part to acquire other party's attribute information that indicates an attribute of the other party's apparatus, from a call connection message that is exchanged with the other party's apparatus in a predetermined call connection procedure carried out prior to a start of the real-time network facsimile communication, and a communication control part to control the real-time network facsimile communication depending on contents of the other party's attribute information acquired by the attribute information acquiring part.