POS Terminal Voice Recognition Error Prevention

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Solution Overview

Problem

Existing POS terminal systems face errors in registering product information when operators manually input product names without barcodes, either through button pressing or voice recognition, due to incorrect button selection or recognition errors.

Innovation Solution

A POS terminal with a voice recognition dictionary and display means using a touch panel to compare voice-recognized product names with button inputs, ensuring accurate registration only when both match, and providing visual cues for incorrect inputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If voice recognition is used to input product names, then input speed is improved, but recognition errors occur leading to incorrect product information registration

Engineering Contradiction:

Improveinput speedVSAvoidproduct information registration accuracy

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system displays the voice-recognized product name on the screen and requires operator confirmation before registration. This feedback mechanism allows the operator to verify the recognition result and correct errors, thereby maintaining high input speed while ensuring registration accuracy.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The display screen acts as an intermediary between voice recognition and final registration. It presents the recognized product name for operator verification, serving as a buffer that prevents erroneous recognition from directly causing incorrect registration.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If manual button pressing is used to input product names, then input accuracy is improved, but input time increases

Engineering Contradiction:

Improveproduct information registration accuracyVSAvoidinput time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system merges voice recognition and manual confirmation into a single input process. The operator speaks the product name while the system automatically displays it, requiring only a confirmation action rather than full manual typing, thus reducing input time while maintaining accuracy.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system performs preliminary voice recognition and displays the product name before final registration. This preliminary action reduces the operator's workload to simple confirmation, significantly reducing input time while maintaining the accuracy of manual verification.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If voice recognition dictionary is used, then input ease is improved, but recognition errors lead to wrong product registration

Engineering Contradiction:

Improveinput easeVSAvoidproduct name recognition accuracy

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system provides visual feedback by displaying the recognized product name on screen before registration. This allows the operator to verify accuracy and correct errors, maintaining ease of voice input while ensuring recognition precision.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS10453045B2POS terminal, product information registration method, and non-transitory computer readable medium storing product information registration program

Publication Date: 2019.10.22 STEERETAIL CO LTD

AI summary

The present invention provides a POS terminal that can prevent errors in registering product information relating to a product for sale from occurring when sales processing is performed. The POS terminal is for managing sales information of products at a store. A voice recognition dictionary (5) includes product names of products for sale registered therein. When a product name included in a voice uttered by an operator matches one of the product names registered in the voice recognition dictionary (5), a voice recognition unit (3) outputs the product name included in the voice as a voice-recognized product name. An operator display unit (10) displays product buttons for inputting the product names. When a product name of a product button pressed by the operator matches the product name voice-recognized by the voice recognition unit (3), product information of a product having the matched product name is registered.