Wireless Display Stream Packetization for Analog Auxiliary Data
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Solution Overview
Problem
Existing display devices struggle with processing and transmitting analog content efficiently, particularly in wireless setups, due to limitations in converting and managing additional data like wide screen signaling and teletext data within the vertical blanking interval.
Innovation Solution
A wireless transmission device that decodes analog data into digital formats, separates audio, video, and additional data, and configures a digital transport stream for transmission to display devices, allowing selective data transmission based on user input and device connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If analog data is transmitted wirelessly without separation, then transmission simplicity is maintained, but data processing efficiency and user control deteriorate
Solution Approach 1:
The patent segments analog data into distinct components (audio, video, and additional data) during wireless transmission. The additional data is separated into its own transport stream packet, allowing independent processing and selection by the display device. This segmentation improves data processing efficiency by enabling selective reception and handling of different data types without requiring complex post-transmission separation.
Solution Approach 2:
The transmission device performs preliminary separation and organization of analog data into distinct digital transport streams before transmission. By pre-configuring the data structure with clearly demarcated audio, video, and additional data packets, the system eliminates the need for complex real-time processing at the receiving end, thereby improving overall processing efficiency without adding significant system complexity.
2Loss of information
If all additional data is transmitted continuously, then data availability is maximized, but bandwidth consumption and resource usage increase
Solution Approach 1:
The patent implements dynamic control of additional data transmission through user-selectable modes. The display device can dynamically adjust which additional data packets are received and processed based on user preferences and current viewing conditions. This dynamic approach ensures that only necessary additional data is transmitted and processed, reducing bandwidth consumption while maintaining data availability when needed.
Solution Approach 2:
The system changes transmission parameters by allowing the display device to selectively receive and process different types of additional data packets. Users can modify parameters such as whether to receive teletext data, wide screen signaling, or other auxiliary information. This parameter-based control optimizes bandwidth usage by transmitting only the data types currently required by the user.
3Adaptability or versatility
If analog data is converted to digital format with full separation, then data processing flexibility is improved, but processing complexity and computational requirements increase
Solution Approach 1:
The patent applies segmentation by separating converted digital data into distinct audio, video, and additional data streams with clear packet boundaries. Each segment is independently structured and can be processed separately, providing high processing flexibility while using standardized, well-defined separation protocols that avoid excessive complexity.
Solution Approach 2:
The transmission device implements a universal conversion and separation framework that handles multiple data types (audio, video, various additional data) through a unified process. This multi-functional approach provides adaptability for different data types while using consistent processing methods, thereby reducing overall system complexity compared to having separate processing paths for each data type.
4Ease of operation
If selective data transmission is implemented, then user control is enhanced, but system complexity and control mechanisms increase
Solution Approach 1:
The patent inverts the traditional control model by enabling the display device (receiving end) to control what data is processed and displayed, rather than the transmission device controlling all data flow. Users can select which additional data packets to receive and process, providing enhanced user control while keeping the transmission device's control mechanisms relatively simple.
Solution Approach 2:
The display device performs self-service by autonomously selecting and processing additional data packets based on user preferences. The device can independently determine which data types to receive, process, and display without requiring complex centralized control, thereby enhancing user control capability while minimizing the complexity of control systems.
Data Source
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AI summary
A transmission device includes a communication interface configured to perform communications with an external device and at least one display device, a memory configured to store analog data received from the external device, a signal processor, and a processor configured to control the signal processor to decode the analog data, separate the decoded analog data into analog audio data, analog video data, and analog additional data, convert the analog audio data, the analog video data, and the analog additional data, separated from one another, respectively, to digital audio data, digital video data, and digital additional data, configure a digital transport stream including a plurality of packets by separately packetizing the digital audio data, the digital video data, and the digital additional data, respectively, and transmit, using the communication interface, the digital transport stream to the at least one display device.