IPTV Receiver Channel Map Management via Master SI Table

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Solution Overview

Problem

Conventional IPTV systems face challenges in efficiently managing and updating channel map information, leading to difficulties in searching and obtaining IPTV services effectively.

Innovation Solution

The method involves transmitting a master system information table record with channel map management information, including identifiers and version information, to enable efficient updating and retrieval of channel map records, allowing IPTV receivers to connect with service providers and update channel information as needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional IPTV systems transmit channel map information without structured versioning and management, then the system structure remains simple, but the efficiency of updating and retrieving channel map information deteriorates

Engineering Contradiction:

Improveefficiency of updating and retrieving channel map informationVSAvoidstructure of channel map management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The channel map information is segmented into a master system information table that manages multiple channel map records, each with its own version information. This segmentation allows independent updating of individual channel maps without affecting the entire system structure, thereby improving retrieval efficiency while maintaining manageable complexity through hierarchical organization.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Version information is preliminarily attached to each channel map record and master system information table before transmission. This preliminary action enables the receiver to immediately identify the latest version without requiring complex comparison processes during retrieval, significantly improving update efficiency and reducing the need for additional verification steps.

Inventive Principle:

Principle #10Preliminary action

2Measurement precision

If channel map information is transmitted without version information, then the transmission structure remains simple, but the accuracy of channel map updates deteriorates

Engineering Contradiction:

Improveaccuracy of channel map updatesVSAvoidchannel map record structure

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The master system information table acts as a feedback mechanism by tracking version information of channel map records. This feedback loop allows the system to automatically identify when updates are needed and retrieve the latest versions, ensuring high accuracy in channel map updates while maintaining a relatively simple structure through standardized versioning protocols.

Inventive Principle:

Principle #23Feedback

3Ease of operation

If the system does not use master system information table for managing channel maps, then the system remains simpler, but the ease of managing multiple channel maps deteriorates

Engineering Contradiction:

Improveease of managing multiple channel mapsVSAvoidchannel map management structure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The master system information table serves multiple functions: it manages version information, tracks channel map records, and facilitates efficient retrieval operations. This multi-functionality consolidates what would otherwise require separate management mechanisms into a single unified structure, making the system easier to operate while introducing only moderate complexity through standardized table formats.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS8397256B2IPTV receiver and method of providing channel map information

Publication Date: 2013.03.12 LG ELECTRONICS INC

AI summary

AN IPTV receiver and a method of providing channel map information are provided. A network interface transmits and receives an IP packet through a network. An IP network stack checks a destination of the received IP packet and classifies the IP packet according to a protocol. A Service Information (SI) decoder parses a master SI table included in the IP packet to read channel map management information included in the master SI table, and parses a channel map record included in the IP packet to read a channel map instance included in the channel map record. An IPTV terminal function (ITF) operation controller controls the reception of the channel map record based on the read channel map management information.