Video Recorder Memory Segmentation for Data Security

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing digital video recorders (DVRs) face challenges in securely storing user data alongside video data without mixing them, necessitating a method to segregate and manage memory regions effectively.

Innovation Solution

A system and method that utilize a video recorder device with protected and unprotected memory regions, where video data is stored in a copy-restricted protected region and user data is stored in accessible unprotected regions, allowing user control over memory allocation and access policies through a user interface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If video data and user data are stored together on the same memory medium, then storage capacity is utilized efficiently, but data security and user control are compromised

Engineering Contradiction:

Improvestorage capacity utilizationVSAvoiddata security

Core Design Contradiction:

Quantity of substanceVSReliability

Solution Approach 1:

The memory medium is divided into distinct memory regions: a protected memory region for video data and an unprotected memory region for user data. This segmentation allows both data types to coexist on the same physical medium while maintaining separate access controls and security policies for each region.

Inventive Principle:

Principle #1Segmentation

2Reliability

If video data is stored in a protected memory region to prevent copying, then data security is improved, but user accessibility and ease of operation deteriorate

Engineering Contradiction:

Improvedata securityVSAvoiduser accessibility

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

Different memory regions are assigned different access properties: the protected memory region restricts copying to prevent unauthorized distribution of video data, while the unprotected memory region allows free user access and copying for personal use. This local differentiation of access rights resolves the contradiction between security and usability.

Inventive Principle:

Principle #3Local quality

3Ease of operation

If user data is stored in an unprotected memory region to allow copying, then ease of operation is improved, but data security and copyright protection worsen

Engineering Contradiction:

Improveuser accessibilityVSAvoidcopyright protection

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The system segments the memory medium into protected and unprotected regions, allowing user data to be stored in the unprotected region where copying is permitted for personal use, while video data remains in the protected region with copying restrictions. This segmentation enables simultaneous support for both user convenience and copyright protection.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUSRE45192E1System and method for storing user data

Publication Date: 2014.10.14 AT&T INTELLECTUAL PROPERTY I L P

AI summary

A method and system to store user data are provided. A system to store user data may include a video recorder device. The video recorder device may include a video receiver to receive video data. The video recorder device may also include a memory device. The memory device may include at least one protected memory region to store video data received via the video receiver. The memory device may also include at least one unprotected memory region. The video recorder device may be adapted to prevent user copying of video data stored at the protected memory region and to allow user copying of data stored at the unprotected memory region.