Portable Music Player with Digital Rights Management
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Solution Overview
Problem
Building a personal digital music library from broadcast sources is labor-intensive due to the need for manual meta-data entry and separation of songs, as raw audio recordings lack necessary meta-data for indexing and categorization.
Innovation Solution
A device, referred to as the 'Nest', connects to digital cable or satellite receivers to record and categorize music broadcasts using video meta-data, allowing for automatic building of a digital music library with options for 'record all' or 'selective' modes, and includes a hand-held player, 'Egg', for portable playback and digital rights management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If raw audio recording from music stations is used, then music can be recorded, but meta-data is lost and manual labeling is required
Solution Approach 1:
The patent introduces an intermediary system (the Nest device with video feed connection) that acts as a mediator between the audio recording and meta-data extraction. By capturing video frames from the broadcast and using optical character recognition to extract meta-data, the system automatically links meta-data to recorded audio without manual intervention, resolving the contradiction between building a large library and avoiding manual labeling work
2Productivity
If sequential broadcast songs are recorded, then music can be captured, but song separation is time-consuming
Solution Approach 1:
The system performs self-service by automatically detecting song boundaries and separating songs from the sequential broadcast. The Nest device monitors the audio stream, identifies song transitions, and automatically segments the recording into individual songs with proper meta-data association, eliminating the need for manual separation and significantly increasing productivity
Solution Approach 2:
The patent implements continuous monitoring of the broadcast stream to track song transitions and maintain continuous useful action. The system operates uninterrupted, continuously recording audio and video, extracting meta-data, and separating songs in real-time, which maximizes library building speed without time loss
3Measurement precision
If manual song identification and separation is performed, then accuracy can be controlled, but time consumption increases
Solution Approach 1:
The patent replaces the mechanical manual process of listening, identifying, and separating songs with an automated electronic system. Optical character recognition extracts meta-data from video frames, audio algorithms identify song boundaries, and digital processing separates songs automatically. This substitution maintains or improves identification accuracy while dramatically reducing the time required compared to manual methods
Data Source
AI summary
A hand-held music player for use in conjunction with radios, including a casing, a receiver socket on the casing through which digital audio data is received, a digital-to-analog audio converter housed within the casing, a first transfer socket on the casing through which a song is transferred to a radio transmitter, a second transfer socket on the casing through which meta-data for the song is transferred to the radio transmitter, and a dial on the casing for selecting a song for playback. A method and a computer-readable storage medium are also described.