Display Apparatus And Video Processing Apparatus

What is this patent about?

’971 is related to the field of wireless communication between a video display and a video processing apparatus, such as a cellular phone or camera, while simultaneously maintaining a connection to a network like the Internet or a home network. Existing interfaces like HDMI are designed for connections between devices within a home and don't adequately address the need for network connectivity while displaying high-quality video from portable devices.

The underlying idea behind ’971 is to enable a display apparatus to receive high-quality video wirelessly from a portable device while simultaneously maintaining a wireless connection to a network. This is achieved by dynamically managing the transmission rate of two separate radio communication units: one dedicated to the video stream from the portable device and the other for network communication. The system prioritizes the video stream to ensure uninterrupted high-quality playback.

The claims of ’971 focus on a display apparatus equipped with a radio modem that can wirelessly communicate with both a cellular phone and the Internet (or a local area network). The modem selects different carrier frequencies for each connection. Upon receiving a user instruction from a cellular phone, the display establishes a wireless connection with the phone while remaining connected to the Internet, receiving and displaying video and audio data from the phone.

In practice, the display apparatus uses a processor to control the radio modem, allowing it to switch between different carrier frequencies and prioritize the bandwidth allocated to the video stream from the cellular phone. This ensures that the video content is displayed smoothly without interruption, even while the device is simultaneously connected to the Internet. The user can initiate the connection from the phone itself, without needing a separate remote controller for the display.

This approach differs from traditional methods by allowing seamless integration of portable devices with display apparatuses while maintaining network connectivity. By dynamically assigning transmission rates and using separate radio communication units, the system avoids compromising video quality for network access. The use of different carrier frequencies for each connection further minimizes interference and optimizes performance for both video streaming and network communication.