Universal Remote Keyless Entry Programming via Short-Range Pairing
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Solution Overview
Problem
Existing remote keyless vehicle access systems face challenges in programming replacement remote access devices without replicating the original code generator, limiting the ability of service providers to offer universal solutions that work with multiple vehicle types and requiring costly inventory management.
Innovation Solution
A method involving a service provider that generates a series of access values using an original code generator, disables its functionalities to prevent index changes, and uses a short range communication device with a unique label to program longer range communication devices, allowing end users to pair and program vehicle access systems without needing the original generator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If service providers use original code generators to program replacement remote access devices, then programming accuracy is improved, but device complexity and inventory management cost increase
Solution Approach 1:
The patent creates a simplified copy of the original code generator's functionality by extracting only the essential identification value and access index communication capability. The short-range communication device replicates the core programming function without needing the full original code generator, allowing service providers to program replacement devices using a standardized interface rather than maintaining multiple original generator types.
Solution Approach 2:
The patent extracts the critical programming elements (identification value and access index) from the complete original code generator system. By isolating and transmitting only these essential components through short-range communication, the system eliminates the need to handle, store, and manage diverse original code generators while preserving the core programming functionality.
2Adaptability or versatility
If service providers maintain inventory of original code generators for different vehicle types, then programming capability is improved, but cost and storage requirements increase
Solution Approach 1:
The short-range communication device serves as a universal programming interface that can program replacement remote access devices for multiple vehicle types. Instead of requiring separate original code generators for each vehicle make and model, this single standardized device communicates essential programming data (identification value and access index) that works across different vehicle systems, making the service provider's equipment universally applicable.
Solution Approach 2:
The system creates a standardized copy of the programming interface that replicates the essential function of various original code generators. By copying only the necessary programming capability (transmitting identification value and access index via short-range communication) rather than maintaining actual inventories of different original generators, the system achieves multi-vehicle-type compatibility with a single device.
3Ease of operation
If replacement remote access devices use longer range communication, then user convenience is improved, but security risk increases
Solution Approach 1:
The patent divides the communication function into two distinct segments: short-range secure communication for programming (identification value and access index transmission) and long-range convenient communication for normal remote access operations. This segmentation allows the device to provide user convenience through long-range operation while maintaining security during the critical programming phase by using restricted short-range communication.
Solution Approach 2:
The system performs security-sensitive programming actions (transmitting identification value and access index) through secure short-range communication before the device is deployed for long-range operation. By completing the security-critical pairing and programming steps in advance via short-range communication, the system ensures that when the device later operates at long range for user convenience, the security parameters are already established and protected.
Data Source
AI summary
An original generator generates a sequence of access values that are stored into a longer range communication device. A short range communication device, which can be the original generator, uses short range communication during a programming process to transmit an identification number to enable subsequence access from the longer range communication device using the sequence of access values.