Terminal Device Preference Storage for Past Content Recommendations

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Solution Overview

Problem

Conventional technologies fail to recommend contents based on a user's preferences at times other than the present moment, limiting their ability to suggest past preferences.

Innovation Solution

A terminal device with a content storage unit, operation receiving unit, history information collector, recording medium loader, writing unit, and preference generator that writes user preference information onto an external recording medium, allowing for content recommendations based on past preferences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If conventional technology stores only current channel selection states, then the system structure remains simple, but the ability to recommend contents based on past user preferences is lost

Engineering Contradiction:

Improvepast user preference informationVSAvoidsystem structure

Core Design Contradiction:

Loss of informationVSDevice complexity

Solution Approach 1:

The system performs preliminary actions by storing user preference information at the time of content writing to external media, before the user actually views the content. This historical preference data is captured and preserved, enabling future recommendations based on past preferences rather than just current state.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system creates copies of user preference information and stores them alongside the written content on external recording media. These preference copies contain genre preferences, artist preferences, and other user inclination data that can be retrieved later for recommendation purposes without affecting the original system structure.

Inventive Principle:

Principle #26Copying

2Reliability

If the system recommends contents based on current user state, then the recommendation reflects present preferences, but it cannot reflect user preferences from the past

Engineering Contradiction:

Improverecommendation accuracy for past preferencesVSAvoiduser experience

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system implements feedback by analyzing user operations (recording, playback, writing) and updating preference information accordingly. This feedback loop ensures that the stored preference data accurately reflects user inclinations at different time points, improving recommendation reliability for both past and present preferences.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system dynamically manages preference information by allowing users to specify time periods for preference analysis and by updating preferences based on new user operations. This dynamic approach enables flexible recommendation based on either historical or current preferences depending on user needs.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS8724961B2Terminal device, method for controlling terminal device, and recording medium

Publication Date: 2014.05.13 PANASONIC HOLDINGS CORP

AI summary

A terminal device, upon each receiving of an operation regarding a viewing of a content from a user, stores history information indicating the history thereof. Then upon receiving an instruction for writing a content onto an external recording medium, the terminal device creates preference information based on the history information having been collected therein. The terminal device then writes the content specified by the writing instruction and the created preference information onto the external recording medium.