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

• US 9,298,302 B2
• Filed: 05/02/2015
• Issued: 03/29/2016
• Est. Priority Date: 01/10/2012
• Status: Expired due to Fees

• Current Assignee: Neonode, Inc.
• Original Assignee: Neonode, Inc.
• Inventors: Frjdh, Gunnar Martin
• Primary Examiner(s): LE, THIEN MINH
• Application Number:
  US14/702,697
• Publication Number:
  US 20150234516A1
• Time in Patent Office: 332 Days
• Field of Search: 235/380, 235/375, 235/382, 235/486
• US Class Current: 1/1
• 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 user validation system including an object including an embedded RFID chip, the chip storing a validation code, a housing, a touch screen in the housing for displaying keypad characters for entering a validation code, and for detecting a sequence of keypad characters tapped by the object on the touch screen, an RFID reader in the housing configured to read the stored validation code from the embedded RFID chip when the object taps the screen, and a processor in the housing, connected to the touch screen and to the RFID reader, configured to determine if the detected sequence of keyboard characters matches the stored validation code.

Claims

1. A user validation system comprising:

an object comprising an embedded RFID chip, said chip storing a validation code;

a housing;

a touch screen in said housing displaying keypad characters for entering a validation code, and detecting a sequence of keypad characters tapped by said object on the touch screen;

an RFID reader in said housing configured to read the stored validation code from said embedded RFID chip when said object taps the screen; and

a processor in said housing, connected to said touch screen and to said RFID reader, configured to determine if the detected sequence of keyboard characters matches the stored validation code.

2. The user validation system of claim 1, wherein said processor activates said RFID reader in response to said touch screen detecting a touch.

3. The user validation system of claim 1, wherein said processor ignores touch screen taps performed by an object that does not have an embedded RFID chip.

4. A method for validating a user, comprising:

displaying, by a touch-sensitive screen, characters for entering a validation code, the touch sensitive screen being connected to an RFID reader;

detecting, by the touch-sensitive screen, a sequence of characters tapped by an object on the screen, the object comprising an embedded RFID chip storing a validation code;

reading, by the RFID reader, the validation code stored in the RFID chip during said detecting; and

determining whether the sequence of characters detected by said detecting matches the validation code read by said reading.

5. The user validation method of claim 4, further comprising activating the RFID reader in response to the touch-sensitive screen detecting a touch.

6. The user validation method of claim 4, further comprising ignoring touch detections on the touch-sensitive screen performed by an object that does not comprise an embedded RFID chip.