Audio Interface Device for Acoustic Authentication Code Transfer
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Solution Overview
Problem
Authentication of 'living room' devices such as televisions and set-top boxes is cumbersome due to the lack of common user input devices like keyboards or microphones, making it difficult for users to enter security credentials, and existing code-based linking methods are cumbersome for users to transfer codes between devices.
Innovation Solution
The use of an audio interface device to facilitate code-based linking by allowing users to speak authentication codes or receive them via audio signals, enabling authentication and authorization of devices without the need for on-screen keyboards or complex input methods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If code-based linking is used for authentication, then security is improved, but user convenience deteriorates due to the need to manually transfer codes between devices
Solution Approach 1:
The patent replaces the manual mechanical process of writing down and transferring authentication codes with an automated acoustic signal transmission system. The first device generates an authentication code and transmits it acoustically through a speaker, which is then captured by a microphone on the second device, eliminating the need for manual code transfer while maintaining security.
Solution Approach 2:
The patent introduces acoustic signals as an intermediary medium to transfer authentication codes between devices. Instead of direct manual transfer, the code is converted into an acoustic signal that can be transmitted through the air and captured by the receiving device, simplifying the transfer process while preserving the security of code-based authentication.
2Reliability
If on-screen keyboards are used for authentication on living room devices, then security credentials can be entered, but user frustration increases due to the cumbersome input process
Solution Approach 1:
The patent replaces the mechanical keyboard input process with acoustic signal transmission. Instead of requiring users to manually type authentication credentials using an on-screen keyboard and remote control, the system transmits the authentication code acoustically from one device to another, eliminating the cumbersome typing process while maintaining authentication security.
3Reliability
If manual code transfer is required for authentication, then security is maintained, but authentication time increases
Solution Approach 1:
The patent replaces the time-consuming manual code transfer process with automated acoustic transmission. The authentication code is generated and transmitted acoustically in real-time, eliminating the need for users to write down, physically move to another device, and manually enter the code, thereby significantly reducing authentication time while maintaining security.
Solution Approach 2:
The system prepares the authentication code in advance on the first device and immediately transmits it acoustically to the second device before the user needs to authenticate. This preliminary generation and transmission of the code eliminates delays associated with manual code creation and transfer processes.
Data Source
AI summary
Disclosed are various embodiments for using an audio interface device to facilitate authentication for other devices. An authentication service causes a first client device to present an authentication code via an output device of the first client device. The authentication service receives the authentication code from a second client device. The second client device is in an authenticated state for access to an account, and the second client device received the authentication code from an environmental sensor while in a listening mode. The authentication service authenticates the first client device for access to the account in response to determining that the authentication code received from the second client device matches the authentication code presented by the first client device.