Infrared Key Exchange for Synchronized Home Entertainment
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Solution Overview
Problem
Existing home entertainment systems lack the ability to create immersive playtime environments by synchronizing audiovisual effects across multiple devices, as they often rely on individual device capabilities rather than collective output, and struggle with detecting and responding to user interactions in the physical environment.
Innovation Solution
A system that uses a controller to detect user actions and transmit commands via line-of-sight and distinct communications mediums to multiple interactive devices, enabling them to perform synchronized audiovisual effects, compensating for individual device limitations and enhancing sensory immersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple interactive devices are used to create immersive playtime environments, then sensory immersion and realism are improved, but device complexity and coordination difficulty increase
Solution Approach 1:
The communication protocol divides data transmission into distinct phases: first transmitting encryption keys through line-of-sight infrared communication, then transmitting encrypted commands through radio frequency communication. This segmentation of communication tasks reduces the complexity of coordinating multiple devices by establishing security credentials before executing actual commands.
Solution Approach 2:
The patent introduces an intermediary authentication mechanism using infrared key transmission as a mediator between the controller and interactive devices. This intermediary layer of key exchange simplifies the overall system coordination by establishing a secure channel before the main data transmission occurs.
2Reliability
If line-of-sight communication is used for key transmission, then security is improved, but communication range and reliability are limited
Solution Approach 1:
The communication process is segmented into two distinct phases: line-of-sight infrared communication for secure key transmission over short distances, followed by radio frequency communication for reliable data transmission over longer distances. This segmentation allows each communication method to operate in its optimal range and security zone.
Solution Approach 2:
The patent transitions from two-dimensional line-of-sight infrared communication to three-dimensional radio frequency communication, expanding the communication coverage area while maintaining security through the layered approach where infrared establishes initial security credentials.
3Reliability
If encrypted data transmission is implemented, then data security is improved, but processing time and complexity increase
Solution Approach 1:
The encryption keys are transmitted and established in advance through infrared communication before the actual encrypted data transmission begins. This preliminary key exchange action allows the subsequent radio frequency data transmission to proceed efficiently without repeated encryption/decryption cycles, reducing overall processing time while maintaining security.
Solution Approach 2:
The communication process segments encryption operations into a preliminary phase (infrared key transmission) and an execution phase (radio frequency encrypted data transmission), optimizing the timing and placement of computational overhead to minimize total processing time.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system creates a more immersive and realistic playtime experience by synchronizing audiovisual effects across devices, overcoming individual limitations and enhancing sensory immersion through collective output and contextually appropriate responses to user interactions.
Implementation Method 1
one or more line of sight transmitters configured to transmit signals over a line of sight communications medium
Implementation Method 2
one or more transmitters configured to transmit signals over another communications medium
Implementation Method 3
one or more line of sight sensors configured to receive signals over a line of sight communications medium
Implementation Method 4
one or more sensors configured to receive signals over a second communications medium
Data Source
AI summary
One embodiment provides a device that includes one or more line of sight transmitters configured to transmit signals over a line of sight communications medium, one or more transmitters configured to transmit signals over another communications medium and a controller. The controller is configured to perform an operation that includes retrieving a key adapted for use in decrypting encrypted content. The operation further includes transmitting the key to a second device over the line of sight communications medium using the one or more line of sight transmitters. Additionally, the operation includes encrypting data such that the data can be decrypted using the retrieved key. The operation also includes transmitting the encrypted data to the second device over the other communications medium using the one or more transmitters, where the second device is configured to decrypt the encrypted data using the key received over the line of sight communications medium.