Linking Devices Using Media Content Watermarks
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Solution Overview
Problem
Establishing a communication link between devices, such as media playback devices and remote control or interface devices, is challenging due to lengthy or complex unique identifiers that are difficult for users to enter, especially when traditional data entry methods are not straightforward or accessible.
Innovation Solution
A method where a server allocates a unique media content segment to a requesting device, allowing the devices to identify each other through audio or video watermarks/fingerprints, enabling the exchange of unique identifiers to establish a communication link without manual data entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional manual data entry methods are used to exchange unique identifiers between devices, then the communication link can be established, but the process becomes complex and error-prone due to lengthy identifiers
Solution Approach 1:
The patent uses visual copies of unique identifiers embedded in media content (images, videos, audio) that users can easily capture and exchange, replacing the need to manually type lengthy text-based identifiers. The media content serves as a visual copy that contains the unique identifier information in an accessible format.
Solution Approach 2:
The patent replaces the mechanical manual data entry process with automated optical recognition systems. Users simply point cameras or image capture devices at the media content displayed on screens, and the system automatically extracts and transmits the unique identifier, eliminating the need for manual typing and reducing errors.
2Measurement precision
If unique identifiers are made longer and more complex to ensure uniqueness, then device identification accuracy improves, but ease of operation deteriorates
Solution Approach 1:
The patent embeds unique identifiers within media content copies that users can easily capture. Instead of requiring users to manually input long identifier strings, they simply capture images or video of the media content displayed on screens, which automatically contains the identifier information in an easily accessible visual format.
Solution Approach 2:
The patent introduces media content (images, video, audio) as an intermediary carrier for unique identifiers. This intermediary form makes the identifiers more accessible and easier to exchange between devices, as users can capture and transmit the media content without needing to manually handle or type the underlying identifier data.
3Productivity
If automated media content allocation is implemented, then connection establishment speed improves, but system complexity increases
Solution Approach 1:
The patent pre-allocates and prepares media content segments before devices need to connect. The system maintains a pool of available media content that can be quickly assigned to devices upon connection request, eliminating the need for complex real-time content generation and reducing connection establishment time.
Solution Approach 2:
The patent introduces a server as an intermediary that manages the allocation and distribution of media content between devices. This server-based approach centralizes the complexity of media content management, allowing client devices to simply request and receive content without handling the complex allocation logic themselves.
Data Source
AI summary
There is disclosed a method of establishing a communication link between first and second devices, the method comprising: receiving a link request from a first device with a first unique identifier; allocating a media content from multiple media content to the first unique identifier; sending the media content to the first device; receiving a media identifier from a second device with a second unique identifier; comparing the media identifier and the media content, and in dependence on identifying a match, transmitting the first unique identifier to the second device and the second unique identifier to the first device, whereby the first and second device can establish a communication link based on the exchanged first and second unique identifiers.