Persistent Media Device Playlist Management

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Solution Overview

Problem

Conventional media players can only manage media assets when connected to a host computer, limiting user ability to manage playlists and media items offline.

Innovation Solution

Implementing a persistent media device playlist on a host computer that allows users to add or remove media items regardless of the media device's connection status, with capacity limits and graphical user interfaces for media asset storage management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If media player is disconnected from host computer, then media player can operate independently, but host computer cannot manage media assets on media player

Engineering Contradiction:
Improveindependent operation capabilityVSAvoidmedia asset management capability
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The system performs preliminary actions by allowing users to add, remove, and organize media items in the playlist on the host computer before the media device is disconnected. The playlist data is prepared and queued for transfer, enabling management operations to be initiated in advance even when the device is offline. This resolves the contradiction by enabling management preparation during disconnection states.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent introduces an intermediary mechanism (the persistent playlist data structure and synchronization system) that bridges the host computer and media device. The playlist serves as an intermediary representation that allows the host computer to maintain and manage media asset information even when the physical device is disconnected, enabling continuous management capability while preserving independent operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Quantity of substance

If media assets are copied to media player, then media player has sufficient content, but storage capacity is limited

Engineering Contradiction:
Improvemedia asset quantityVSAvoidstorage capacity
Core Design Contradiction:
Quantity of substanceVSVolume of stationary object

Solution Approach 1:

The system applies partial action by allowing users to create and manage playlists that may contain more media items than can physically fit on the media device. The playlist can exceed storage capacity by including items that will be selectively transferred or by allowing virtual representation of assets that aren't all copied. This enables users to work with larger media collections than the device can hold, resolving the contradiction between quantity and storage capacity.

Inventive Principle:
Principle #16Partial or excessive action

Solution Approach 2:

The patent adds another dimension to storage management by implementing capacity limits as a configurable parameter rather than a fixed physical constraint. The system allows virtual expansion of storage through the playlist data structure on the host computer, separating the logical representation of media assets from the physical storage constraints of the device. This enables users to manage larger collections by utilizing the host computer's storage resources.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If capacity limit is imposed on playlist, then storage is optimized, but user flexibility is reduced

Engineering Contradiction:
Improvestorage efficiencyVSAvoidplaylist configuration flexibility
Core Design Contradiction:
ProductivityVSAdaptability or versatility

Solution Approach 1:

The system implements dynamics by making the capacity limit a configurable and adjustable parameter rather than a fixed constraint. Users can modify the capacity limit based on their needs, allowing the system to adapt between storage efficiency and flexibility. The dynamic capacity limit enables the playlist to resize and reconfigure as devices are connected or disconnected, resolving the contradiction by allowing optimization for different operational scenarios.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies parameter changes by allowing the capacity limit parameter to be modified based on device connection status and user preferences. The system can adjust the effective capacity limit dynamically - being more restrictive when storage is critical and more permissive when flexibility is needed. This parameter flexibility resolves the contradiction by enabling the system to optimize for storage efficiency in some contexts while maintaining configuration flexibility in others.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11314378B2Persistent group of media items for a media device
Publication Date: 2022.04.26 APPLE INC
  • US11314378B2 patent drawing
  • US11314378B2 patent drawing
  • US11314378B2 patent drawing

AI summary

Improved techniques to utilize and manage a group of media items (or media assets) on a computing device are disclosed. The group of media items can be utilized and managed at a host computer for the host computer as well as a media device (e.g., media player) that can couple to the host computer. One popular example of a group of media items is know as a playlist, which can pertain to a group of audio tracks. One aspect pertains to providing a persistent media device playlist at a host computer. Another aspect pertains to imposing capacity limits to a playlist, such as a media device playlist. Still another aspect pertains to a graphical user interface that enables a user to trade-off storage capacity of a media device between media asset storage and data storage. Yet still another aspect pertains to a graphical user interface that assists a user with selecting media items to fill a group of media items.