Multiple Bit Encoding for Wireless Transmission Security

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Solution Overview

Problem

Current wireless transmission methods, particularly On-Off Keying (OOK), lack sufficient security without increasing costs, necessitating an enhanced encryption method for secure data transmission in applications like garage door openers and remote controls.

Innovation Solution

Employing multiple bit encoding techniques, including binary and Manchester bit representations, with fixed, random, and rolling bit placement to generate additional coding combinations, which are transmitted using a microprocessor-based transmitter circuit, enhancing security without increasing the number of data bits or system cost.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rolling code technology is used for wireless transmission, then security is improved, but device complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent divides the single-bit representation into multiple bit representations for each data bit. Instead of using one bit pattern per data bit, the system uses multiple different bit patterns (e.g., first bit representation, second bit representation, third bit representation) to represent the same data bit value. This segmentation of the bit representation space increases the number of possible code combinations without requiring additional hardware components, thereby improving security while maintaining relatively simple device complexity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent changes the parameter of bit representation by implementing multiple different bit patterns (first, second, third bit representations) that can be used to represent the same data bit. This parameter change in the encoding scheme allows the system to generate over 60 million possible code combinations using the same physical hardware, improving security without significantly increasing device complexity.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If additional encryption methods are implemented, then security is improved, but cost increases

Engineering Contradiction:
ImprovesecurityVSAvoidcost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent implements a universal encoding scheme where multiple bit representations can be used with existing OOK wireless transmission hardware. The same transmitter and receiver can handle multiple bit representations without requiring different hardware for each encryption method. This multi-functionality allows the system to achieve enhanced security through software/firmware encoding variations rather than requiring additional expensive hardware encryption modules, thereby improving security while controlling cost.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent creates multiple copies or variations of bit representations (first bit representation, second bit representation, third bit representation) that can represent the same data bit. Instead of using a single bit pattern, the system uses multiple copied/varied bit patterns to increase security. This approach allows existing hardware to be used more efficiently with enhanced security through encoding variations rather than requiring expensive additional encryption hardware.

Inventive Principle:
Principle #26Copying

3Reliability

If multiple bit encoding is used to increase coding combinations, then security is improved, but device complexity increases

Engineering Contradiction:
ImprovesecurityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the bit representation space into multiple distinct bit representations (first, second, third bit representations) that can be used to encode the same data bit. This segmentation allows the system to generate over 60 million possible code combinations by combining different bit representations across multiple data bits, achieving enhanced security while maintaining manageable device complexity through systematic encoding rather than complex hardware.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a dynamic encoding scheme where multiple different bit representations can be used flexibly to represent data bits. The system can dynamically select from multiple bit representations (first, second, third bit representations) to encode information, creating over 60 million possible code combinations. This dynamic approach allows enhanced security through varied encoding without requiring proportionally complex hardware, as the complexity is managed through software/firmware control of the encoding process.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS9485124B2Method and apparatus for multiple bit encoding
Publication Date: 2016.11.01 TSUI GALLEN KA LEUNG
  • US9485124B2 patent drawing
  • US9485124B2 patent drawing
  • US9485124B2 patent drawing

AI summary

Methods and apparatus for encoding data for wireless transmission are disclosed in which a data message may be encoded into a transmission code as a first coding format and a second coding format. The first coding format characterized by a first bit representation and the second coding format characterized by a second bit representation different from the first bit representation. The transmission code may be transmitted having the first and second coding formats.