Digital Broadcast Receiver Automatic Program Segmentation
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Solution Overview
Problem
In digital broadcasting systems, users face inconvenience when recording programs scheduled beyond a week ahead, as existing systems do not allow for easy manipulation of recorded broadcast streams, which are stored as a single file, requiring users to separate and edit multiple programs broadcasted during a time zone.
Innovation Solution
A digital broadcast receiver and method that automatically records broadcast streams on a user-selected channel within a specified time zone, separating the stream into individual program files for easy manipulation, allowing users to record and play back programs scheduled during that time zone.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user specifies a time zone and records the broadcast stream on a selected channel, then the recording function is simple and flexible, but the broadcast stream is stored as a single file requiring manual separation into multiple programs
Solution Approach 1:
The patent applies segmentation by automatically dividing the continuously recorded broadcast stream into separate program files based on program information from the EPG. Instead of storing one large file containing multiple programs, the system segments the stream at program boundaries, creating individual files for each program while the user only needs to specify a time zone for recording.
2Productivity
If the broadcast stream is recorded as a single file, then the recording process is simple, but the user must manually separate and edit multiple programs which increases manipulation difficulty
Solution Approach 1:
The patent applies preliminary action by performing program separation during the recording process itself rather than requiring post-recording manual separation. The system uses program information from the EPG to identify program boundaries and automatically creates separate files as each program is recorded, so the separation action is completed before the user needs to manipulate the recorded content.
3Ease of operation
If a user books a program from the program listing, then the program selection is intuitive with logos and information display, but programs scheduled beyond a week ahead cannot be booked
Solution Approach 1:
The patent applies universality by creating a dual-mode booking system. The program listing function remains available for booking programs within the EPG time range (one week ahead), while the time zone specification function enables booking of programs beyond one week ahead. Both functions work together to provide comprehensive program booking capability for different time ranges.
Data Source
AI summary
In digital broadcast recording for automatically recording broadcasts on a channel selected from a plurality of digital broadcast programs on a recording medium, in accordance with a booking that is performed by specifying a time zone and giving a command to record a stream of broadcast contents on the user-selected channel during the time zone, the stream of broadcast contents on the channel is recorded, separated into a plurality of units for the programs broadcasted during the time zone. Thus, the recorded stream can be handled program by program in a later editing or playback operation, despite that it was recorded by booked recording for which only the time zone was specified, and thus the user-friendliness is improved.