Automated Banking Machine Keypad Security via LED Interference
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Solution Overview
Problem
Automated banking machines lack enhanced security, user-friendly operation, weather resistance, and features to prevent germ transmission and unauthorized viewing of user inputs, while also not being accessible for visually impaired users and vulnerable to spying cameras.
Innovation Solution
The automated banking machine incorporates a user interface with a concealed keypad, encryption capabilities, a visual indicator for encrypted inputs, a secure touch screen display, and light-emitting diodes to prevent camera viewing, along with design features for improved weather resistance and accessibility for visually impaired users.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a standard keypad is provided for user input, then ease of operation is improved, but security against unauthorized viewing and spying cameras deteriorates
Solution Approach 1:
A visual indicator system acts as an intermediary between the keypad and the user, providing feedback about encryption status without exposing sensitive input data. The indicator lights or display elements communicate security state while maintaining the confidentiality of actual user inputs, thus resolving the contradiction between operational ease and security.
Solution Approach 2:
The system employs color-changing indicators or lighting elements that change color or intensity based on encryption status. For example, green light indicates encrypted mode while red indicates unencrypted mode, providing intuitive visual feedback to users about security state without compromising input privacy or enabling spying camera exploitation.
2Reliability
If encryption capabilities are added to protect user inputs, then security is improved, but device complexity increases
Solution Approach 1:
The encryption capabilities are merged into the existing keypad and controller architecture rather than being implemented as separate standalone systems. The controller that already manages keypad inputs is extended to include encryption functions, and the visual indicator system is integrated with the existing display infrastructure, thereby reducing overall system complexity while maintaining security.
Solution Approach 2:
The visual indicator system serves multiple functions: it indicates encryption status, provides user feedback about security state, and can potentially communicate system status information. This multi-functionality reduces the need for separate dedicated components for each function, thereby limiting the increase in device complexity while achieving security goals.
3Object-affected harmful factors
If a concealment device is added to cover the keypad, then security against unauthorized viewing is improved, but ease of operation deteriorates
Solution Approach 1:
The concealment device is designed to be dynamic rather than static, allowing it to move between concealed and exposed positions based on operational needs. The keypad can be concealed during non-use periods to prevent unauthorized viewing, then dynamically revealed when user input is required, thus balancing security and operational ease through temporal separation of functions.
4Object-affected harmful factors
If light-emitting diodes are added to prevent camera viewing, then security against spying cameras is improved, but use of energy increases
Solution Approach 1:
The light-emitting diodes operate periodically rather than continuously, activating only during critical input phases when security is most needed. The LEDs can flash or illuminate in periodic patterns during user input collection, then remain dormant during other operational phases, thereby preventing camera exploitation while minimizing energy consumption through temporal selective activation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enhances security, user experience, and accessibility while preventing unauthorized viewing and germ transmission, ensuring secure and efficient financial transactions.
Implementation Method 1
light-emitting diodes to prevent camera viewing
Data Source
AI summary
An apparatus that operates to cause financial transfers responsive to data read from data bearing records, includes at least one processor that is in operative connection with a card reader, a check acceptor, a cash dispenser and the display. The at least one processor causes the machine to operate to read card data from a user card, and to cause a determination to be made that the read card data corresponds to an authorized financial account. The at least one processor is operative to cause data to be read from a check and/or cash to be dispensed, and a financial transfer to or from the account corresponding to the value thereof. Unauthorized observation of manual inputs to an input device is prevented through the use of nonvisible light emitters that prevent the observation of such inputs via an electronic camera interception device.