Portable Set-Top Box Powered via HDMI Interface
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Solution Overview
Problem
Current media processors, such as digital set-top boxes, are typically confined to a single location and lack portability, limiting their ability to decode and transmit audio-visual information efficiently across different devices.
Innovation Solution
A portable set-top box device that receives power through an HDMI port, decodes audio-visual information into an HDMI standard format, and transmits the signal to a presentation device, enabling flexible media processing and presentation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If media processors are confined to a single location near media presentation devices, then they can provide stable media decoding and transmission, but they lack portability and flexibility in deployment
Solution Approach 1:
The media processor is designed to perform multiple functions: it can decode audio-visual information, transmit signals to presentation devices, and simultaneously receive power through the same HDMI interface. This multi-functionality enables the device to be portable while maintaining reliable operation through integrated power management.
2Adaptability or versatility
If media processors use dedicated power supplies, then they can ensure sufficient power for decoding operations, but they increase device complexity and reduce portability
Solution Approach 1:
The patent combines the power transmission function with the signal transmission function by using the HDMI interface for both purposes. The media processor receives both power and audio-visual signals through the same connection to the presentation device, eliminating the need for separate power adapters and reducing overall device complexity.
Solution Approach 2:
The HDMI interface serves dual purposes: transmitting audio-visual signals and providing power to the media processor. This multi-functional design reduces the number of components needed and simplifies the power supply structure while maintaining adequate power delivery for decoding operations.
3Adaptability or versatility
If media processors are designed for fixed locations, then they can maintain simple connection structures, but they limit the ability to transmit media content across different devices
Solution Approach 1:
The media processor is designed to work with multiple types of presentation devices (televisions, monitors, projectors) through the universal HDMI interface. The same interface that provides power also handles signal transmission, allowing the device to be easily connected to various devices without requiring different connection structures.
Data Source
AI summary
A system that incorporates teachings of the present disclosure may include, for example, a presentation device having a controller that performs operations including enabling a supply of power to a portable battery operated device from a presentation port where the presentation port is a high definition multimedia interface port by trickle charging a rechargeable battery of the portable battery operated device through the presentation port, and receiving from the portable battery operated device an audio-visual signal for presentation at the presentation device through the presentation port. Other embodiments are disclosed.