Transport Stream Processing System for Integrated Recording and Playback

Solution Overview

Problem

Conventional transport stream processing systems require dedicated hardware for recording and playback functions, leading to reduced design flexibility and increased manufacturing costs.

Innovation Solution

A transport stream processing system comprising a first memory unit for storing sets of control words, a packet identifier filter, and a processor that determines the operation type based on packet identifier values, retrieving corresponding data structures for processing transport stream packets, allowing for integrated recording and playback without dedicated hardware.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dedicated hardware components are used for different transport stream packet types, then processing reliability is improved, but device complexity and manufacturing costs increase

Engineering Contradiction:

Improveprocessing reliabilityVSAvoiddevice complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent implements a universal processor that can handle multiple types of transport stream packets (video, audio, data, etc.) through software-based processing. The processor uses packet identifier filters to identify packet types and applies appropriate processing algorithms stored in memory, eliminating the need for separate dedicated hardware components for each packet type while maintaining processing reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent replaces physical dedicated hardware components with a software-based processing system. The processor executes software instructions stored in memory to perform functions that would traditionally require separate hardware components, thereby reducing device complexity while maintaining processing capabilities through virtualized functions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Reliability

If dedicated hardware components are used for different transport stream packet types, then processing reliability is improved, but manufacturing costs increase

Engineering Contradiction:

Improveprocessing reliabilityVSAvoidmanufacturing costs

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent implements a universal processor that can handle multiple types of transport stream packets (video, audio, data, etc.) through software-based processing. The processor uses packet identifier filters to identify packet types and applies appropriate processing algorithms stored in memory, eliminating the need for separate dedicated hardware components for each packet type while maintaining processing reliability.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent replaces physical dedicated hardware components with a software-based processing system. The processor executes software instructions stored in memory to perform functions that would traditionally require separate hardware components, thereby reducing device complexity while maintaining processing capabilities through virtualized functions.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If dedicated hardware is required for recording and playback, then processing reliability is improved, but adaptability is reduced

Engineering Contradiction:

Improveprocessing reliabilityVSAvoiddesign flexibility

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent implements a dynamic processing system where the processor can adapt its behavior based on the type of transport stream packet being processed. The system dynamically loads appropriate processing algorithms from memory based on packet identifier filters, allowing the same hardware to perform different functions (recording, playback, decryption, etc.) as needed, thereby achieving both reliability and adaptability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the operational parameters of the processor based on the processing requirements. By modifying which algorithms are executed and which memory locations are accessed based on packet type identification, the system achieves different processing modes (recording, playback, decryption) without requiring dedicated hardware for each mode, thus maintaining both reliability and design flexibility.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS8369413B2Transport stream processing system and related method thereof

Publication Date: 2013.02.05 XUESHAN TECH INC

AI summary

A transport stream processing system capable of recording and playing back a transport stream carrying a plurality of transport stream packets is provided, and includes: a first memory unit storing a plurality of sets of control words; a packet identifier filter acquiring a set of control words according to a packet identifier value of a transport stream packet and configuring an indicator to indicate whether the transport stream packet is for a recording or a playback operation; a second memory unit storing a plurality of data structures, wherein each data structure corresponds to an index number of each set of control words; and a processor determining whether the recording or playback operation for the transport stream packet is performed for the transport stream packet according to the indicator, retrieving a data structure according to the index number corresponding to the acquired set of control words and performing the operation accordingly.