Broadcast Receiver Content Data Synchronization
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current technologies face challenges in effectively transmitting content data from a broadcast receiver to an information processing apparatus, such as smartphones and tablets, for synchronized viewing experiences during terrestrial digital television broadcasts.
Innovation Solution
A broadcast receiver system that includes a storage unit and a controller to manage content data transmission, using DDB messages for data and event messages for commands, allowing for controlled data synchronization and operation modes to facilitate seamless data transfer between the broadcast receiver and connected information processing devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If content data is transmitted from broadcast receiver to information processing apparatus, then user experience is improved through synchronized viewing, but data transmission efficiency and synchronization control become problematic
Solution Approach 1:
The broadcast receiver pre-loads content data into storage before the information processing apparatus requests it. The controller monitors broadcast data reception and proactively stores content data in advance, so when the apparatus requests data via acquisition request signals, the receiver can immediately transmit from storage without waiting for broadcast reception, significantly improving transmission efficiency and synchronization.
2Speed
If content data is stored in broadcast receiver for later transmission, then data transmission speed is improved, but device complexity increases
Solution Approach 1:
The broadcast receiver's storage unit serves multiple functions: it stores content data for fast transmission to information processing apparatus, stores EPG data for guide information, and acts as a buffer between broadcast reception and transmission. This multi-functionality reduces the need for separate dedicated storage systems, managing complexity while enabling fast data transmission.
Solution Approach 2:
The controller dynamically manages the storage unit based on real-time conditions. It monitors whether content data is currently being received from broadcast, checks storage availability, and decides whether to pre-load data or transmit immediately. This dynamic control adapts to varying broadcast conditions and user requests, optimizing transmission speed without requiring overly complex fixed architecture.
3Reliability
If the broadcast receiver proactively sends content data, then synchronization with information processing apparatus is improved, but energy consumption increases
Solution Approach 1:
Instead of continuous monitoring and transmission, the controller uses periodic acquisition request signals from the information processing apparatus to trigger data transmission. The receiver periodically checks for these requests and transmits data at these discrete intervals. This periodic action maintains synchronization reliability while significantly reducing energy consumption compared to continuous monitoring and transmission.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A broadcast receiver (20) comprising an interface (213) connectable to an information processing apparatus (30); and a first controller (22) configured to acquire a command transmitted through a broadcast path, and send the acquired command to the information processing apparatus (30) through the interface (213) if the command is a command for causing the information processing apparatus (30) to launch an application, wherein the acquired command is an instruction for causing the information processing apparatus (30) to acquire content data.