Remote Debugging for Firewall-Protected Media Devices

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Solution Overview

Problem

Media devices, such as set-top boxes, often malfunction or operate incorrectly due to system issues, making it difficult to obtain remote debugging information efficiently and timely due to firewall restrictions.

Innovation Solution

Establish a persistent outbound connection from the receiving device to a message server, allowing remote debug machines to send commands and collect output across firewall restrictions, using a debug data upload server for troubleshooting and debugging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the device is located behind a firewall, then network security is improved, but remote debugging capability deteriorates

Engineering Contradiction:

Improvenetwork securityVSAvoidremote debugging capability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Instead of attempting to connect to the device from the remote debug machine through the firewall (inbound connection), the patent inverts the connection direction by having the device initiate an outbound connection to a message server. This allows commands to be sent to the device and data to be retrieved without requiring the firewall to allow incoming connections, thus resolving the contradiction between maintaining network security and enabling remote debugging capability.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The patent introduces a message server as an intermediary component that facilitates communication between the remote debug machine and the device behind the firewall. The message server receives commands from the remote debug machine and forwards them to the device, while also collecting device output and returning it to the remote debug machine. This intermediary approach enables remote debugging without requiring direct penetration of the firewall, thus maintaining network security while improving debugging capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Ease of operation

If traditional inbound connection methods are used, then device control is simplified, but firewall restrictions block the connection

Engineering Contradiction:

Improvedevice controlVSAvoidfirewall restrictions

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent inverts the traditional inbound connection approach by having the device initiate an outbound connection to a message server. This reversal allows the device to actively reach out to the server rather than waiting for incoming connections, thereby bypassing firewall restrictions that block inbound traffic while maintaining simplified device control through the message server interface.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The device performs self-service by autonomously establishing an outbound connection to the message server and executing commands locally. The device initiates the communication channel itself rather than requiring external systems to penetrate the firewall, which simplifies the control mechanism while effectively overcoming firewall restrictions through the device's own proactive connection initiation.

Inventive Principle:

Principle #25Self-service

3Productivity

If real-time remote information collection is implemented, then debugging efficiency is improved, but network security restrictions hinder the process

Engineering Contradiction:

Improvedebugging efficiencyVSAvoidnetwork security

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent inverts the traditional approach by having the device initiate outbound connections to collect and transmit real-time information to the message server rather than attempting to pull information through the firewall. This reversal enables efficient real-time remote information collection while maintaining network security, as the outbound connections are permitted by firewalls while inbound connections are blocked.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The message server acts as an intermediary that receives real-time information from the device via outbound connections and makes this information available to the remote debug machine. This intermediary approach enables efficient real-time debugging information collection without requiring the firewall to allow inbound traffic, thus improving productivity while preserving network security reliability.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12443511B2Systems and methods for remote debugging

Publication Date: 2025.10.14 SLING MEDIA PVT LTD

AI summary

Systems and methods for remote debugging perform remote debugging of a receiving device, such as a set-top box or other connected media player, even when the receiving device is located behind a firewall. The receiving device has a persistent outbound connection with a message server. Since it is an outbound connection, it connects across firewall restrictions. A remote debug machine sends a message via the message server to the receiving device over a network. The message carries the command/operation to be executed by the receiving device. The receiving device, which receives the command, executes the command and sends the output of the command to a debug data upload server to which the remote debug machine has access.