Wireless HDMI Transmitter Powering via Source Device
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Solution Overview
Problem
Wireless HDMI transmitting devices require a power adapter, occupying space and needing a socket interface, and users must manually turn off or unplug them when not in use, making them inconvenient.
Innovation Solution
A wireless HDMI transmitting device that receives power through the HDMI interface's power pin from a source device, eliminating the need for a power adapter, using a power module to process and transmit power to a wireless transmitting module, which converts HDMI data into a wireless signal using an OFDM-MIMO algorithm and broadband antenna.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If a power adapter is used to supply power to the wireless HDMI transmitting device, then the device can operate continuously, but the device occupies more space and requires a socket interface connection
Solution Approach 1:
The patent merges the power adapter function with the source device by utilizing the source device's existing power output capabilities. The wireless HDMI transmitting device draws power directly from the source device through the HDMI interface, combining the power supply function into the existing connection rather than requiring a separate power adapter.
Solution Approach 2:
The HDMI interface is made multi-functional by using it for both data transmission and power supply. The single HDMI connection serves dual purposes: transmitting HDMI data signals and providing electrical power to the wireless transmitting device, eliminating the need for separate power and data connections.
2Power
If a power adapter with socket interface is used, then the device can be powered, but the connection becomes more complex and less convenient
Solution Approach 1:
The patent combines the power supply connection with the data transmission connection by using the same HDMI interface for both functions. This merging eliminates the need for separate socket interfaces and power cables, reducing connection complexity to a single plug-and-play interface.
Solution Approach 2:
The HDMI interface performs multiple functions simultaneously: it transmits high-definition video and audio data while also providing electrical power to the wireless transmitting device. This multi-functionality simplifies the overall system by reducing the number of required connections and interfaces.
3Ease of operation
If the wireless HDMI transmitting device remains connected to the power adapter, then it can be quickly reused, but users must manually turn off or unplug it when not in use
Solution Approach 1:
The power supply connection becomes dynamic rather than static. The wireless transmitting device automatically adjusts its power state based on the connection status with the source device. When disconnected, power is automatically cut off; when connected, power is automatically restored, eliminating manual power management.
Solution Approach 2:
The system provides self-service power management by automatically detecting the connection state and adjusting power supply accordingly. The wireless transmitting device turns itself on when connected to a source device and turns itself off when disconnected, without requiring user intervention for power management.
4Device complexity
If power is drawn from the source device through the HDMI interface, then no separate power adapter is needed, but the source device must provide sufficient power output
Solution Approach 1:
The system adapts to different source device power capabilities by dynamically adjusting power consumption parameters. The wireless transmitting device monitors the power availability from the source device and adjusts its operational parameters accordingly, enabling compatibility with various source devices that have different power output capabilities.
Data Source
AI summary
A wireless High Definition Multimedia Interface (HDMI) transmitting device includes a wireless transmitting module and an HDMI interface configured to connect to a source device. The HDMI interface includes a power pin configured to receive power from the source device and a data pin configured to receive an HDMI data from the source device. The wireless transmitting module includes a power receiving contact connected to the power pin and a data receiving contact connected to the data pin. The wireless transmitting module receives the power through the power receiving contact and converts the HDMI data received by the data receiving contact into a wireless signal. Therefore, the wireless HDMI transmitting device may be powered in the absence of a power adapter, the space occupied by the wireless HDMI transmitting device is reduced, and a socket interface corresponding to the power adapter is not needed.