Dynamic Skip Time Adjustment in Media Reproduction

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Solution Overview

Problem

Conventional skip operations in media reproduction systems require equal forward and backward skip times, leading to inefficient waiting times and operability issues, as users must repeatedly skip forward and then backward to reach desired content, with forward skip times being longer than necessary and backward skip times being shorter, resulting in prolonged waiting for the start of desired content.

Innovation Solution

A reproduction apparatus that dynamically adjusts skip times based on the direction of the skip operation, making forward skip times longer than backward skip times, allowing users to skip unwanted content efficiently by accepting either forward or backward skip instructions and moving the playback position by determined skip times during reproduction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If equal forward and backward skip times are used, then the skip operation is simple and consistent, but the waiting time for desired content increases due to inefficient navigation

Engineering Contradiction:
Improveskip operation consistencyVSAvoidwaiting time for desired content
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The patent applies local quality by making the skip time different for forward skip operations compared to backward skip operations. Specifically, the forward skip time is set to be longer than the backward skip time, optimizing the skip behavior for each direction based on user needs and content structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent implements dynamics by making the skip time adjustable and direction-dependent rather than fixed. The system dynamically selects different skip times based on whether the user performs a forward or backward skip operation, allowing optimal performance for each scenario.

Inventive Principle:
Principle #15Dynamics

2Loss of time

If forward skip time is made longer than backward skip time, then waiting time for desired content is reduced, but the skip operation becomes more complex

Engineering Contradiction:
Improvewaiting time for desired contentVSAvoidskip time determination logic
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent applies parameter changes by modifying the skip time parameter based on the skip direction. The system changes the skip time value depending on whether the operation is forward or backward, allowing optimization of waiting time while managing complexity through parameter variation.

Inventive Principle:
Principle #35Parameter changes

3Loss of time

If backward skip time is shortened, then user can reach desired content faster, but the user must wait longer for the beginning of the part after skipping

Engineering Contradiction:
Improvetime to reach desired contentVSAvoidreproduction duration after skip
Core Design Contradiction:
Loss of timeVSDuration of action of moving object

Solution Approach 1:

The patent applies local quality by optimizing skip times for different directions separately. The backward skip time is specifically optimized to be shorter than forward skip time, addressing the specific needs of users who want to quickly reach desired content without unnecessarily extending the reproduction duration after the skip.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS7860370B2Reproduction apparatus for shortening a user's waiting time until reproducing a beginning of a part that the user wants to view, and a reproduction method and computer readable recording medium having a program recorded thereon for performing the same
Publication Date: 2010.12.28 PANASONIC HOLDINGS CORP
  • US7860370B2 patent drawing
  • US7860370B2 patent drawing
  • US7860370B2 patent drawing

AI summary

A reading control section 40 reproduces information read from a recording medium, and a reproduction-operation section 20 accepts an instruction for a forward skip or a backward skip. Further, a controller 10 makes the skip time for one of the forward skip and the backward skip longer than the skip time for the other, determines the skip time based on one of the instruction for the forward skip and the instruction for the backward skip, and if the instruction for the forward skip and the backward skip is accepted while the information is reproduced, then stops the reproduction, moves the position in which the information is read by the skip time determined by a skip-time determination section 11, and resumes the reproduction after the movement of the reading position is completed.