Display Apparatus And Video Processing Apparatus
Patent No. US11451860 (titled "Display Apparatus And Video Processing Apparatus") was filed by Maxell Ltd on Feb 7, 2019.
What is this patent about?
’860 is related to the field of wireless communication, specifically addressing the problem of simultaneously streaming high-quality video between devices and maintaining a network connection. The background involves the increasing prevalence of digital video and the need to transmit it wirelessly without quality degradation, while also enabling internet or home network access.
The underlying idea behind ’860 is to prioritize the wireless transmission of video data over general network connectivity. This is achieved by dynamically allocating bandwidth between two wireless communication modules: one dedicated to video streaming and another for network access. The system ensures that the video stream receives sufficient bandwidth to maintain high picture quality, even if it means reducing the bandwidth available for the network connection.
The claims of ’860 focus on a video processing apparatus (e.g., a camera or phone) and a display apparatus (e.g., a TV) each equipped with two wireless communication modules and a controller. The controller, in response to user input, manages the bandwidth allocation between the video stream and the network connection, ensuring the video stream is maintained while the network connection is active. Some claims also cover a video processing system comprising both the video processing apparatus and the display apparatus.
In practice, the system might use Orthogonal Frequency Division Multiplexing (OFDM) to transmit data. The controller dynamically adjusts parameters like modulation scheme, frequency band, and number of carriers for each wireless module. For example, the video stream might use a more robust modulation scheme (like QPSK) to ensure reliable transmission, while the network connection uses a less robust but higher-bandwidth scheme (like 64 QAM) when possible. The user can also manually adjust the priority.
This approach differs from prior solutions that may not have dynamically prioritized video streaming over network connectivity. By prioritizing the video stream, the invention ensures a seamless viewing experience even when the device is simultaneously connected to a network. The system can also adapt to varying video quality requirements, allocating more bandwidth to the video stream when higher resolutions (e.g., HD) are used, and less when lower resolutions (e.g., SD) are sufficient. This dynamic bandwidth allocation is key to maintaining both video quality and network connectivity.
How does this patent fit in bigger picture?
Technical landscape at the time
In the late 2000s when ’860 was filed, at a time when video and audio transmission was typically implemented using dedicated wired connections such as HDMI, systems commonly relied on established wireless protocols rather than ad-hoc or proprietary radio communication methods, and when hardware or software constraints made simultaneous high-bandwidth video streaming and network communication non-trivial.
Novelty and Inventive Step
Claims were rejected as being unpatentable over prior art. Arguments were presented by the applicant. The action was made final. The prosecution record does NOT describe the technical reasoning or specific claim changes that led to allowance.
Claims
This patent contains 28 claims, with independent claims numbered 1, 7, 12, 18, 23, 24, 25, 26, 27, and 28. The independent claims generally focus on video processing and display apparatuses or systems that utilize two radio communicators to transmit/receive video and other information simultaneously. The dependent claims generally elaborate on the control, configuration, and components of the apparatuses and systems described in the independent claims.
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Description
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US11451860
- Application Number
- US16269662
- Filing Date
- Feb 7, 2019
- Status
- Granted
- Expiry Date
- Oct 29, 2028
- External Links
- Slate, USPTO, Google Patents