Method for exchanging information between a cash register and a payment-processing device

US6536664B2 · kind B2 · utility

Assignee

• Cashguard AB · SE

Inventors

• Leif Nordqvist · Åkersberga, SE
• Karl-Willy Turegard · Lidingö, SE
• Gunnar Olofsson · Kalmar, SE

Key dates

• Filing date: May 2, 2001
• Grant date: Mar 25, 2003
• Expiry date: May 2, 2021

Classification

• Technology area (CPC G): Physics
• CPC primary: G07G1/14
• WIPO field: Control
• WIPO sector: Instruments

Abstract

A system for the processing of payment and a signal-processing device having a first data port for communication with a case register (10). The signal-processing device (50) also includes a second data port for communication with a display arrangement a third data port for communication with a payment-processing device, and a buffer unit for storage of data. The device is intended, on receiving a first data quantity at the first data port, to deliver the first data quantity to a detector unit for checking a first data quantity;the detector unit is arranged to convey the first data quantity onwards to the buffer unit,the buffer unit is arranged to temporarily store the received data and thereafter deliver it to the second data port,the detector unit is arranged to generate a detection signal as a function of a detected final code and to deliver this detection signal to the third data port;a calculating unit is arranged to await a payment made signal from the third data port, and the calculating unit is arranged to generate an information quantity (380) as a function of receiving the payment made signal;the signal-processing arrangement is arranged to generate a second data quantity …