CarPlay Executor Sharing Authentication Chip for Multi-Device Display
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Solution Overview
Problem
The conventional method of implementing Apple CarPlay in multiple automobile entertainment devices requires each device to have an Apple Mfi authentication chip, leading to high manufacturing costs and limiting additional devices from running CarPlay without the chip.
Innovation Solution
A system and method that allows multiple electronic devices to share a single Apple Mfi authentication chip, utilizing a CarPlay executor with a principal execution unit and sub-execution units to display CarPlay operation interfaces on multiple devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each automobile entertainment device is equipped with an Apple Mfi authentication chip to independently run Apple CarPlay, then each device can provide CarPlay functionality, but the manufacturing cost increases significantly
Solution Approach 1:
The patent merges the authentication functionality of multiple devices into a single authentication chip located in the host device. The CarPlay executor in the secondary device communicates with the host device's authentication chip, allowing multiple devices to share one authentication resource rather than each device having its own chip.
Solution Approach 2:
The host device's Apple Mfi authentication chip serves multiple functions: it authenticates the primary CarPlay connection and also enables secondary devices to obtain authentication tokens to run CarPlay independently. This universal authentication mechanism eliminates the need for separate chips in each device.
2Ease of manufacture
If only one automobile entertainment device has an Apple Mfi authentication chip, then manufacturing cost is reduced, but additional devices cannot run Apple CarPlay
Solution Approach 1:
The host device acts as an intermediary between Apple's authentication system and secondary devices. It receives authentication requests from secondary devices, validates them through its authentication chip, and distributes authentication tokens back to enable CarPlay functionality on secondary devices without requiring them to have direct authentication capabilities.
Solution Approach 2:
The authentication process is segmented into two parts: the authentication chip remains in the host device, while the CarPlay executor is distributed to secondary devices. This segmentation allows the authentication resource to be shared while enabling multiple devices to run CarPlay independently.
Data Source
AI summary
A system for achieving display of CarPlay operation interface on display screens of multiple electronic devices is disclosed. The system comprises a first electronic device and a second electronic device, wherein the first electronic device has functionality of Apple CarPlay because of including an Apple Mfi authentication chip. Particularly, a CarPlay executor comprising a principal execution unit and a plurality of sub-execution units is provided in the first electronic device. As such, after a second mobile electronic device is in communication with a second electronic device that is coupled to the first electronic device, one sub-execution unit is authorized by the Apple Mfi authentication chip so as to let a CarPlay operation interface be shown on a display screen of the second electronic device, thereby achieving display of CarPlay operation interface on display screens of multiple electronic devices.