Method of and system for detecting object weighing interferences

US9057641B2 · kind B2 · utility

Assignee

• METROLOGIC INSTRUMENTS, INC. · US

Inventors

• Thomas Amundsen · Turnersville, US
• Sean Philip Kearney · Marlton, US
• Shane Michael Edmonds · Gatineau, CA
• Ynjiun P. Wang · Cupertino, US
• Timothy Good · Blackwood, US
• Michael V. Miraglia · Hillsborough Township, US
• Charles Joseph Cunningham, IV · Broomall, US
• Xiaoxun Zhu · Marlton, US
• Patrick Giordano · Glassboro, US

Key dates

• Filing date: Jul 21, 2014
• Grant date: Jun 16, 2015
• Expiry date: Jul 21, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G07G1/0045
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A POS-based checkout/scale system having (i) a bar code symbol reading subsystem for reading bar code symbols on products being purchased at a retail POS station, and (ii) a produce weigh scale having a weigh scale assembly for weighing one or more produce items on a weigh platter during produce weighing operations carried out at the time of checkout at said retail POS station. The system also includes an automatic produce weighing interference detection subsystem, supporting an IR-based light curtain about the weigh platter, automatically detects when any object is overhanging the weigh platter during produce weighing operations, and generates an alert signal when such conditions are automatically detected.