Digital Radio Receiver Store and Replay Format Conversion

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Solution Overview

Problem

Current digital radio broadcasting systems lack user-friendly methods for storing and replaying received signals, with limitations in scheduling recordings, managing memory space, and navigating stored content during playback.

Innovation Solution

A method and apparatus for receiving and processing digital radio broadcasting signals, involving conversion of encoded content into a second format for storage and decoding to recover decoded content, with a receiver including an input for receiving signals, a processor for conversion, and memory for storing and decoding, allowing users to record programs based on genre, manage memory, and navigate stored content using fast forward and rewind commands.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If encoded content is stored in the original first format, then storage space is optimized, but playback compatibility and flexibility are limited

Engineering Contradiction:
Improvestorage spaceVSAvoidplayback compatibility
Core Design Contradiction:
Quantity of substanceVSAdaptability or versatility

Solution Approach 1:

The system performs format conversion in advance by storing encoded content in a second format that is more suitable for playback and manipulation. This preliminary action ensures that when content is stored, it is already in the optimal format for future operations like fast-forward, rewind, and genre-based filtering, eliminating the need for real-time conversion during playback.

Inventive Principle:
Principle #10Preliminary action

2Productivity

If multiple programs are recorded simultaneously, then user productivity increases, but memory management complexity increases

Engineering Contradiction:
Improverecording efficiencyVSAvoidmemory management
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system segments stored content by organizing programs into different genres or categories. This segmentation allows the memory management system to handle multiple recorded programs more efficiently by grouping them logically, making it easier to manage, search, and delete content based on user preferences without being overwhelmed by the total volume of recordings.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system provides feedback to users about memory usage status and automatically manages storage by deleting content based on user-defined criteria such as genre preferences or recording duration. This feedback mechanism simplifies memory management by automating decisions about what content to retain or remove, reducing the cognitive load on users.

Inventive Principle:
Principle #23Feedback

3Ease of operation

If fast forward and rewind functions are implemented, then user navigation capability improves, but processing time and energy consumption increase

Engineering Contradiction:
Improvenavigation capabilityVSAvoidprocessing time
Core Design Contradiction:
Ease of operationVSLoss of time

Solution Approach 1:

The system prepares content for efficient navigation by pre-processing encoded content into a format that facilitates fast-forward and rewind operations. This preliminary formatting allows the playback system to quickly jump to different positions in the recorded content without extensive real-time processing, reducing the time and energy required for navigation operations.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS9118427B2Method and apparatus for store and replay functions in a digital radio broadcasting receiver
Publication Date: 2015.08.25 IBIQUITY DIGITAL CORP
  • US9118427B2 patent drawing
  • US9118427B2 patent drawing
  • US9118427B2 patent drawing

AI summary

A method for receiving and processing a digital radio broadcasting signal includes: receiving a digital radio broadcasting signal including encoded content in a first format; processing the encoded content to convert the encoded content into a second format; storing the encoded content in a second format; and decoding the stored encoded content to recover decoded content. A receiver that implements the method is also provided.