PTT Server Media Conversion for Multi-Terminal Compatibility
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Solution Overview
Problem
In PTT communication systems, the existing technologies face challenges in efficiently converting and transmitting multimedia data among terminals with different specifications, leading to decoding issues and increased processing loads due to incompatible coding formats, resolutions, and bit rates, resulting in potential quality degradation.
Innovation Solution
A PTT server system that manages connection setting information to convert medium coded data into formats compatible with the receiving terminals, using a controlling unit to accommodate multiple terminals with varying specifications, a receiving unit to process input data, and a transmitting unit to send output data in formats suitable for each terminal, thereby reducing processing loads and maintaining quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the PTT server copies and transmits coded data from each terminal to other terminals without conversion, then the processing amount is reduced, but terminals with incompatible specifications cannot decode the data correctly
Solution Approach 1:
The patent applies preliminary action by performing format conversion in advance before transmission. The PTT server converts coded data into formats compatible with destination terminals before sending, ensuring that all terminals can decode the data correctly without requiring complex real-time conversion at each terminal.
Solution Approach 2:
The patent applies parameter changes by modifying coding parameters such as coding method, image resolution, frame rate, and bit rate to match the specifications of destination terminals. This allows the same content to be transmitted in multiple formats suitable for different terminal capabilities.
2Reliability
If the PTT server converts coded data for each terminal with different specifications, then decoding compatibility is improved, but the processing amount and quality degradation increase
Solution Approach 1:
The patent applies segmentation by dividing the conversion process into distinct stages: call control processing segment that determines format requirements, and coded data conversion segment that performs the actual conversion. This segmentation allows for more efficient resource allocation and processing management.
Solution Approach 2:
The patent applies dynamics by making the conversion process adaptive based on terminal specifications. The PTT server dynamically selects appropriate conversion parameters and methods based on the capabilities of destination terminals, optimizing the balance between compatibility and processing load.
3Reliability
If the PTT server converts coded data for each terminal individually, then decoding compatibility is improved, but quality degradation occurs due to multiple conversions
Solution Approach 1:
The patent performs format conversion in advance during the call setup phase rather than in real-time during data transmission. This preliminary conversion ensures that the original high-quality data is converted once to the appropriate format, avoiding repeated conversions that would degrade quality.
Solution Approach 2:
The PTT server acts as an intermediary that performs a single conversion from the source format to the destination format, rather than having multiple terminals perform sequential conversions. This single mediation step preserves data quality while ensuring compatibility.
4Adaptability or versatility
If the PTT server supports multiple coding formats and parameters, then adaptability to different terminals is improved, but device complexity increases
Solution Approach 1:
The PTT server is designed with multi-functionality to handle multiple coding formats and parameters. It can perform various types of conversions (coding method, resolution, frame rate, bit rate) using a unified conversion framework, reducing the need for separate dedicated systems for each conversion type.
Solution Approach 2:
The system manages complexity by parameterizing the conversion process. Instead of hardcoding multiple conversion paths, the system uses configurable parameters to adapt to different terminal specifications, allowing flexible support for multiple formats through a standardized conversion mechanism.
Data Source
AI summary
A PTT server includes a controlling unit, a receiving unit, a medium converting unit, and a transmitting unit. The controlling unit controls pieces of connection setting information less than the number of a plurality of PTT terminals having different specifications by complying them with the plurality of PTT terminals. The receiving unit receives a medium coded data from any one of the PTT terminals. The medium converting unit converts the medium coded data with a converting method on the basis of the connection setting information compliant with a PTT terminal for transmission destination to produce an output coded data. The transmitting unit transmits the output coded data to the PTT terminal for the transmission destination.