Wi-Fi Miracast Stream Control via Intermediary Parameter Management

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Solution Overview

Problem

Conventional wireless communication techniques for exchanging information between multiple information processing apparatuses, such as those using the Wi-Fi CERTIFIED Miracast specification, face challenges in appropriately setting and controlling transmission and reception parameters like frequency bands, bit rates, and compression schemes to ensure efficient and stable streaming.

Innovation Solution

The implementation of an information processing apparatus and method that acquires and controls transmission and reception information, including constraint conditions, status, and wireless environment data, to generate and transmit control information for setting optimal parameters like frequency bands, bit rates, and compression schemes, using IEEE 802.11z specifications for channel switching and Wi-Fi Direct connections.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If wireless communication techniques are used to exchange information between multiple information processing apparatuses, then communication flexibility and accessibility are improved, but appropriate setting and control of transmission and reception parameters (frequency bands, bit rates, compression schemes) becomes difficult to achieve

Engineering Contradiction:

Improvecommunication flexibilityVSAvoidparameter setting and control

Core Design Contradiction:

Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent introduces a control apparatus as an intermediary that manages and controls transmission and reception parameters between multiple information processing apparatuses. The control apparatus acquires information about each apparatus's capabilities and wireless environment, then generates and transmits control information to appropriately set frequency bands, bit rates, and compression schemes, resolving the difficulty of parameter control while maintaining communication flexibility

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system dynamically adjusts transmission and reception parameters (frequency bands, bit rates, compression schemes) based on acquired information about apparatus capabilities and wireless environment conditions. The control apparatus modifies these parameters adaptively to optimize communication performance under different conditions

Inventive Principle:

Principle #35Parameter changes

2Productivity

If stream transmission and reception is performed between multiple information processing apparatuses in accordance with Wi-Fi CERTIFIED Miracast specification, then wireless streaming capability is improved, but appropriate settings for each apparatus to ensure stable transmission and reception becomes complex

Engineering Contradiction:

Improvewireless streaming capabilityVSAvoidsystem configuration complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The control apparatus serves as a central mediator that manages the complexity of Wi-Fi CERTIFIED Miracast stream transmission between multiple apparatuses. It acquires capability information from each apparatus, determines appropriate transmission parameters, and distributes control information to ensure stable stream transmission and reception, thereby reducing system configuration complexity

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The control apparatus performs preliminary actions by acquiring information about each apparatus's capabilities and wireless environment before initiating stream transmission. It pre-determines and configures transmission parameters such as frequency bands, bit rates, and compression schemes to ensure stable transmission from the outset

Inventive Principle:

Principle #10Preliminary action

3Manufacturing precision

If control information is generated and transmitted to multiple information processing apparatuses based on acquired information, then transmission and reception control accuracy is improved, but information processing time and system overhead increase

Engineering Contradiction:

Improvetransmission and reception control accuracyVSAvoidinformation processing time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The control apparatus acquires information about apparatus capabilities and wireless environment conditions, generates appropriate control information, transmits it to the apparatuses, and can subsequently acquire status information about transmission and reception. This feedback mechanism enables accurate control while allowing for iterative optimization based on actual transmission status

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS9948993B2Information processing apparatus and information processing method

Publication Date: 2018.04.17 SONY GROUP CORP

AI summary

Transmission and reception of a stream are appropriately performed between a plurality of information processing apparatuses. An information processing apparatus includes an acquisition unit and a control unit. The acquisition unit acquires information for use in determination for controlling transmission and reception of a stream performed between a plurality of information processing apparatuses in accordance with the Wireless Fidelity (Wi-Fi) CERTIFIED Miracast specification. Also, the control unit controls the transmission and reception of a stream on the basis of the acquired information (information for use in determination for controlling transmission and reception of a stream).