Universal Programmable Keyless Entry Remote Device
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Solution Overview
Problem
Current keyless entry systems for vehicles face challenges such as compatibility issues across different makes and models, high costs for replacement devices, and complexity in duplicating keys, leading to difficulties for consumers in obtaining compatible and secure remote devices.
Innovation Solution
A programmable keyless entry remote device that replicates the functionality of OEM devices using multiple modulation schemes and data encoding techniques, allowing it to work with various vehicle makes and models, and a system for storing key information to create exact duplicates without the need for locksmiths or dealerships.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single universal remote device is designed to work with multiple vehicle makes and models, then compatibility and versatility are improved, but device complexity increases due to the need to support multiple modulation schemes and data encoding techniques
Solution Approach 1:
The patent implements a universal remote device that can emulate multiple OEM keyless entry systems by incorporating a database of vendor-specific profiles containing modulation schemes, data encoding techniques, and rolling code algorithms. The device automatically selects and applies the appropriate profile based on the target vehicle, enabling a single device to perform multiple functions across different vehicle makes and models without requiring separate specialized remotes for each vehicle type.
Solution Approach 2:
The patent employs parameter changes by storing multiple sets of transmission parameters (frequencies, modulation schemes, data formats, rolling code algorithms) in a database and dynamically switching between them based on the identified vehicle type. This allows the device to adapt its operational parameters to match the specific requirements of different OEM systems, resolving the contradiction between maintaining simplicity and achieving broad compatibility.
2Ease of operation
If key information is stored in a centralized key bank for creating duplicate keys, then ease of operation and accessibility are improved, but security risks increase due to potential unauthorized access to encrypted key data
Solution Approach 1:
The patent implements preliminary action by capturing and storing encrypted key information in a centralized key bank at the time of initial key pairing, before any potential loss or theft occurs. This allows replacement keys to be generated quickly and easily without requiring access to the original physical key or visit to a dealership, while the encrypted storage maintains security until authorized access is provided through multi-factor authentication protocols.
Solution Approach 2:
The patent introduces an intermediary layer of encryption and authentication mechanisms between the stored key data and potential users. The key bank stores encrypted versions of key information, and access requires authorization through multiple factors (such as vehicle identification, owner credentials, and cryptographic verification). This intermediary security layer enables easy key duplication for authorized users while preventing unauthorized access, resolving the contradiction between accessibility and security.
3Manufacturing precision
If vendor-specific profiles are stored in the remote device to replicate OEM functionality, then manufacturing precision and functionality are improved, but memory requirements and device size increase
Solution Approach 1:
The patent employs copying by storing compressed representations of vendor-specific profiles in the remote device's memory. These profiles contain the essential data (modulation schemes, encoding algorithms, frequency information) needed to replicate OEM functionality. By efficiently encoding and storing these profiles, the device achieves precise emulation of multiple different keyless entry systems without requiring physical copies of each OEM remote, thus maintaining high functionality while minimizing the increase in device size.
Data Source
AI summary
A system providing rolling code remote device functions to provide keyless entry to multiple makes and models of cars. The system adapted to produce the radio signal type and transmitted data of an original manufacturer's keyless entry remote device system by implementing multiple modulation schema and data encoding techniques. A system for backing up and restoring or replacing OEM vehicle keys. The system stores a copy of data from an OEM key along with other information necessary to replace the OEM key in a key bank. The data collected is processed and stored, a customer can order a universal replacement from the key bank programmed with stored data to emulate prior paired OEM key.