Broadcast Receiver External Storage Interface
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Solution Overview
Problem
Current digital television broadcast receivers with embedded hard disk drives (HDDs) face high fabrication costs, maintenance complexities, and limited storage capacity, as well as the inability to transfer broadcast signals to different media, due to the integration of HDDs within the device.
Innovation Solution
A recording/playing device that connects to an external storage medium via wireless or wired connection, using a broadcast processor, interface unit, and record/play controlling unit to store and play broadcast signals, allowing for the use of universal serial bus (USB) or Ethernet connections, and enabling features like time-shift recording and playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an embedded HDD is equipped in the broadcast receiver, then the broadcast signal can be stored and played back, but the fabrication cost increases and the device complexity increases
Solution Approach 1:
The patent extracts the storage function from the broadcast receiver by using an external HDD connected via USB interface. The broadcast receiver no longer needs to contain an embedded HDD, thereby reducing fabrication cost and device complexity while maintaining the ability to store and play back broadcast signals through the external storage device.
Solution Approach 2:
The patent makes the broadcast receiver universal by enabling it to work with external storage devices through a standard USB interface. This allows the same broadcast receiver to function with different storage solutions (external HDD, SSD, or even cloud storage), providing multi-functionality without requiring an embedded HDD.
2Reliability
If an embedded HDD is equipped in the broadcast receiver, then the broadcast signal can be stored, but the maintenance and management become complex and costly
Solution Approach 1:
The patent extracts the storage device from the broadcast receiver system, allowing users to easily connect and disconnect external HDDs without technical difficulty. This eliminates the need for professional maintenance personnel to service embedded storage, as users can independently manage their own storage devices by simply plugging them into the USB interface.
3Volume of moving object
If the broadcast receiver is densely packed, then the device size is reduced, but the space for additional HDD is insufficient
Solution Approach 1:
The patent resolves the space conflict by extracting the storage function to an external device. The broadcast receiver maintains its compact, densely packed design without needing to allocate internal space for an HDD. Users can connect external storage devices with sufficient capacity through the USB interface, thereby maintaining both small device size and adequate storage capability.
4Device complexity
If the HDD is fixed inside the broadcast receiver, then the structure is simplified, but the user cannot separate or detach the HDD
Solution Approach 1:
The patent segments the storage system into two independent parts: the broadcast receiver and the external HDD. The broadcast receiver contains only the necessary components for receiving and processing broadcast signals, while the storage function is separated into a detachable external device. This segmentation allows users to easily connect and disconnect storage devices without complicating the receiver's internal structure.
5Reliability
If the broadcast signal is stored in the embedded HDD, then it can be played by the corresponding broadcast receiver, but the signal cannot be transferred to different media
Solution Approach 1:
The patent enables universality by using a standard USB interface for storage connection. The broadcast receiver can work with various types of external storage devices (HDD, SSD, USB flash drives, or even network storage), allowing users to transfer broadcast signals to different media and devices. This universal interface provides both playback capability and media transfer versatility.
Data Source
AI summary
A recording/playing device and a method for processing a broadcast signal are disclosed. The device includes an external storage device, and a broadcast receiver. The external storage device includes at least one storage medium. And, the broadcast receiver includes a broadcast processor, an interface unit, and a record/play controlling unit. The broadcast processor receives a broadcast signal of a specific channel and demodulates and decodes the received broadcast signal. The interface unit is capable of being connected to the storage medium of the external storage device. And, the record/play controlling unit activates a record/play mode, when a connection with the storage medium of the external storage device is detected through the interface unit, and stores the demodulated broadcast signal in the storage medium of the external storage device through the interface unit, or reads and plays (or plays-back) the broadcast signal from the storage medium of the external storage device.