Combined radio-frequency identification and touch input for a touch screen

• US 8,608,066 B2
• Filed: 01/03/2013
• Issued: 12/17/2013
• Est. Priority Date: 01/10/2012
• Status: Active Grant

• Current Assignee: Neonode, Inc.
• Original Assignee: Neonode, Inc.
• Inventors: Frjdh, Gunnar Martin
• Primary Examiner(s): LE, THIEN MINH
• Application Number:
  US13/733,862
• Publication Number:
  US 20130176252A1
• Time in Patent Office: 348 Days
• Field of Search: 235/380, 235/375, 235/382, 235/486, 345/169, 345/173
• US Class Current: 235/380
• CPC Class Codes: G06F 21/35 communicating wirelessly
• CPC Class Codes: G06F 21/42 using separate channels for security data
• CPC Class Codes: G06F 2203/0384 Wireless input, i.e. hardware and software details of wireless interface arrangements for pointing devices
• CPC Class Codes: G06F 2203/04106 Multi-sensing digitiser, i.e. digitiser using at least two different sensing technologies simultaneously or alternatively, e.g. for detecting pen and finger, for saving power or for improving position detection
• CPC Class Codes: G06F 3/033 Pointing devices displaced or positioned by the user , e.g. mice, trackballs, pens or joysticks; Accessories therefor digitisers characterised by the transducing means G06F3/041
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/0383 Signal control means within the pointing device
• CPC Class Codes: G06F 3/041 Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display

Abstract

A method for a point of sale terminal, including reading a first PIN code that is stored in an RFID chip that is embedded in a plastic card, identifying a first keypad character on a touch sensitive display screen that is being tapped by the plastic card, reading a second PIN code that is stored in an RFID chip that is embedded in a plastic card, identifying a second keypad character on a touch sensitive display screen that is being tapped by the plastic card, determining whether the second PIN code matches the first PIN code, and if the determining is affirmative, then appending the second keypad character to the first keypad character to generate a two-character input code, else starting a new one-character input code with the second keypad character alone.

Claims

1. A method for a point of sale terminal, comprising:

reading a first PIN code that is stored in an RFID chip that is embedded in a plastic card;

identifying a first keypad character on a touch sensitive display screen that is being tapped by the plastic card;

reading a second PIN code that is stored in an RFID chip that is embedded in a plastic card;

identifying a second keypad character on a touch sensitive display screen that is being tapped by the plastic card;

determining whether the second PIN code matches the first PIN code; and

if said determining is affirmative, then appending the second keypad character to the first keypad character to generate a two-character input code, else starting a new one-character input code with the second keypad character alone.

2. The method of claim 1 further comprising:

repeating said reading a next PIN code, said identifying a next keypad character, said determining whether the next PIN code matches a previous PIN code and, if so, appending the next keypad character to the current input code to generate a longer input code, until the input code includes a pre-determined number of characters;

determining whether the input code having the pre-determined number of characters matches the PIN code stored in the RFID chip; and

if said determining is affirmative, then completing a transaction, else declining the transaction.

3. The method of claim 1 wherein said completing a transaction comprises dispensing cash from a bank teller machine.

4. The method of claim 1 wherein said completing a transaction comprises executing a sale.

5. The method of claim 1 wherein an identified keypad character is ignored if a corresponding PIN code is not read.