Patent No. US8180198 (titled "Playlist creating apparatus and method, and dubbing list creating apparatus and method") on Feb 9, 2005. The application was issued on May 15, 2012.
’198 is related to the field of digital video management and user interface design for recording devices. It specifically addresses the logistical challenges users face when organizing large libraries of recorded content on high-capacity storage media, such as hard disk drives or optical discs. The background context involves the transition from simple linear recording to complex digital libraries where manual selection for playlists or dubbing becomes a labor-intensive task for the consumer.
The underlying idea behind ’198 is a predictive selection mechanism that automates the discovery of related content during the manual assembly of a list. Instead of requiring a user to hunt through a master library for every individual entry, the system treats a single user selection as a seed for a search. By identifying shared metadata attributes between the chosen file and the rest of the library, the system proactively surfaces a filtered subset of candidates, effectively bringing the most relevant files to the user’s immediate attention.
The claims of ’198 focus on a specific multi-pane interface architecture that integrates the master library, the active playlist, and a dynamically generated candidate list within a single unified display. The independent claims describe a control logic that, upon the selection of a digital image, automatically retrieves other images sharing identical related information—such as series titles, recording time slots, or channel data. This logic then populates a secondary list of candidates directly adjacent to the existing playlist to facilitate rapid, sequential additions.
In practice, the invention functions as an intelligent assistant during the creation of playlists or dubbing queues. When a user selects a specific episode of a television show, the system immediately scans the recording medium’s sub-information for matching series tags or recording parameters. These matches are then presented as a telop or a dedicated retrieval result screen, often utilizing thumbnails to provide a visual reference. This allows the user to batch-process related recordings, such as an entire season of a show, without navigating back to the main directory.
This approach differs from prior solutions by emphasizing the simultaneous display of the source library, the destination list, and the suggested candidates. While earlier systems might have allowed for basic attribute-based searching, ’198 integrates the search result into the workflow of list construction. By positioning candidate images next to one another in a dedicated interface zone, the invention reduces the cognitive load and the number of inputs required to move related data from a bulk storage environment to a curated output format.
In the mid-2000s when ’198 was filed, digital video recording systems were transitioning toward high-capacity local storage such as hard disk drives and optical media, at a time when content management was typically implemented using manual, file-by-file selection interfaces. When systems commonly relied on linear navigation or individual file tagging for playlist generation, the increasing volume of stored digital broadcasts made the manual organization of large libraries non-trivial due to the processing overhead of metadata filtering and the limitations of standard user input methods. Hardware and software constraints of the era often restricted media management to basic directory structures, where the correlation of disparate video files based on shared attributes required significant user intervention.
The disclosed invention addresses the technical challenge of managing large-scale digital media libraries by introducing an automated selection and display architecture for playlist generation and dubbing. The solution integrates a control module that programmatically identifies and aggregates digital images based on user-specified attribute criteria, rather than requiring discrete manual selection of every file. This architectural shift enables the dynamic population of a playlist through a relational filtering mechanism that links recorded content via shared metadata. The resulting technical effect is a streamlined data management process that overcomes the operational bottleneck of manual content sorting, allowing for the efficient batch processing of media files for reproduction or transfer to secondary storage media.
The patent contains a total of 16 claims, with claims 1, 6, and 13 being independent. These independent claims focus on a digital image recording and reproducing apparatus and methods for creating playlists or dubbing lists by retrieving and displaying candidate images that share the same related information as a user-selected image, specifically requiring the simultaneous display of the image data, associated information, candidate list, and the resulting playlist on a single screen. The dependent claims serve to further define the system by specifying the use of reduced images, the inclusion of selection menus and telops for batch registration, the rearrangement of displayed information based on different retrieval conditions, and the determination of bit rates based on the storage capacity of a target recording medium.
Definitions of key terms used in the patent claims.
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