Thumbnail Generation and Transmission in Content Receiving Devices
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Solution Overview
Problem
Existing content receiving devices face challenges in efficiently presenting a list of content items acquired from broadcast waves to users, as they require significant storage capacity and channel capacity for thumbnail storage and transmission, leading to increased costs and complexity.
Innovation Solution
A content receiving device system that includes a content receiver, a thumbnail generator, and a transmitter, which generates and transmits thumbnails directly to a display device without relying on the server for storage, reducing the need for large storage and channel capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the content receiving device stores and transmits thumbnails using traditional server-based methods, then the thumbnails can be presented to users, but the storage capacity and channel capacity requirements increase significantly
Solution Approach 1:
The patent divides the thumbnail processing system into distinct functional modules: a thumbnail generation unit that creates thumbnails from content items, a thumbnail storage unit that stores generated thumbnails, and a thumbnail transmission unit that transmits thumbnails to terminal devices. This segmentation allows each module to operate independently with optimized resource usage, reducing overall storage and channel capacity requirements compared to traditional server-based approaches.
Solution Approach 2:
The content receiving device performs thumbnail generation and storage autonomously without relying on external servers. The device generates thumbnails from acquired content items, stores them locally in the thumbnail storage unit, and transmits them directly to terminal devices upon request. This self-service approach eliminates the need for large-scale server infrastructure and reduces both storage capacity and channel capacity requirements.
2Ease of operation
If thumbnails are generated and stored for all acquired content items, then user convenience is improved, but device complexity and processing overhead increase
Solution Approach 1:
The system generates and stores thumbnails in advance when content items are acquired, so that thumbnails are readily available when users browse content lists. The thumbnail generation unit creates thumbnails from content items as they are acquired, and the thumbnail storage unit preserves them for future retrieval. This preliminary action eliminates the need for on-demand thumbnail generation during user browsing, reducing processing overhead while maintaining user convenience.
Solution Approach 2:
The thumbnail storage unit acts as an intermediary between the content acquisition system and the thumbnail transmission function. Instead of generating thumbnails repeatedly or transmitting raw content items, the storage unit holds pre-generated thumbnails and supplies them efficiently to terminal devices. This intermediary role reduces processing overhead by avoiding redundant thumbnail generation and simplifies data transmission by using compact thumbnail formats rather than full-resolution content.
Data Source
AI summary
A content receiving device includes: a content receiver that acquires a content item; a generator that generates a thumbnail of the content item, which is acquired by the content receiver; a thumbnail storage that stores the thumbnail generated by the generator; a request receiver that receives the acquisition request for the thumbnail; and a transmitter. The transmitter transmits the thumbnail stored in the thumbnail storage, to a transmission source of the acquisition request for the thumbnail, in response to the acquisition request for the thumbnail being received by the request receiver.