Apparatus and methods for enabling information to be read from a touch screen apparatus

Patent metadata

Field	Value
Publication number	US-10248820-B2
Application number	US-201515329715-A
Country	US
Kind code	B2
Filing date	Jul 16, 2015
Priority date	Aug 1, 2014
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

An apparatus and method and electronic device, the apparatus comprising: a memory element configured to store information; a switching element coupled to the memory element; wherein the switching element is configured to be switched from a first state to a second state in response to an input signal provided by a capacitive touch screen and wherein when the switching element is in the second state the information can be read from the memory element by the capacitive touch screen.

First claim

We claim:

1. An apparatus comprising:
a memory element configured to store information; and
a switching element coupled to the memory element;
wherein the switching element is configured to be switched from a first state to a second state in response to an input signal from a capacitive touch screen external to the apparatus and wherein when the switching element is in the second state the memory element is configured to provide at least part of the information in the memory element to the capacitive touch screen external to the apparatus; and
wherein the memory element and the switching element are configured to enable an electrode to be connected to and disconnected from ground.

2. An apparatus as claimed in claim 1 wherein the memory element is configured to store identification information.

3. An apparatus as claimed in claim 1 wherein the memory element comprises a sensor element and is configured to store information obtained by the sensor element.

4. An apparatus as claimed in claim 1 wherein the apparatus comprises a plurality of memory elements and a plurality of switching elements.

5. An apparatus as claimed in claim 1 wherein the switching element is configured to be switched from the first state to the second state by light from the capacitive touch screen external to the apparatus.

6. An apparatus as claimed in claim 5 wherein a plurality of switching elements are provided and different switching elements may be configured to be switched from the first state to the second state by different wavelengths of light.

7. An apparatus as claimed in claim 1 wherein the switching element comprises a transistor and a switching component.

8. An apparatus as claimed in claim 1 further comprising at least one reference electrode wherein the reference electrode is configured to enable the capacitive touch screen external to the apparatus to determine the positions of the switching elements.

9. An apparatus as claimed in claim 1 wherein the apparatus is transparent so that the data obtained by the external capacitive touch screen may be displayed on the capacitive touch screen external to the apparatus and viewed through the apparatus.

10. An apparatus as claimed in claim 1 , wherein the apparatus is part of an identification tag.

11. A method comprising:
providing a memory element configured to store information; and
coupling a switching element to the memory element;
wherein the switching element is configured to be switched from a first state to a second state in response to an input signal from a capacitive touch screen external to the apparatus and wherein when the switching element is in the second state the memory element is configured to provide at least part of the data in the memory element to the capacitive touch screen external to the apparatus; and
wherein the memory element and the switching element are configured to enable an electrode to be connected to and disconnected from ground.

12. A method as claimed in claim 11 wherein the switching element is configured to be switched from the first state to the second state by light emitted from the capacitive touch screen external to the apparatus.

13. A method as claimed in claim 11 wherein the memory element is configured to store identification information.

14. A method as claimed in claim 11 wherein the memory element comprises a sensor element and is configured to store information obtained by the sensor element.

15. An electronic device comprising:
processing circuitry;
memory circuitry including computer program code; and
a capacitive touch screen;
the memory circuitry and the computer program code configured to, with the processing circuitry, cause the electronic device at least to perform:
detecting an apparatus external to the electronic device overlaying the capacitive touch screen external to the apparatus;
determining a position of at least one reference electrode of the apparatus;
using the determined position of the at least one reference electrode of the apparatus to determine a position of a switching element within the apparatus; and
activating the capacitive touch screen in a region underneath the switching element to enable data to be read from the apparatus by the capacitive touch screen.

16. An electronic device as claimed in claim 15 , wherein activating the capacitive touch screen external to the apparatus comprises activating pixels in the region of the capacitive touch screen underneath the switching element.

17. An electronic device as claimed in claim 15 , wherein the memory circuitry and the computer program code are configured to, with the processing circuitry, cause the electronic device to determine the position of a plurality of switching elements.

18. An electronic device as claimed in claim 17 , wherein the memory circuitry and the computer program code are configured to, with the processing circuitry, cause the electronic device to activate areas of the capacitive touch screen underneath the plurality of switching elements sequentially.

19. A method comprising:
detecting an apparatus, external to an electronic device, overlaying a capacitive touch screen of the electronic device;
determining a position of at least one reference electrode of the apparatus;
using the determined position of the at least one reference electrode of the apparatus to determine a position of a switching element within the apparatus; and
activating the capacitive touch screen in a region underneath the switching element to enable data to be read from the apparatus by the capacitive touch screen.

Assignees

• Nokia Technologies Oy

Inventors

• Allen Mark
• Bower Chris
• Cotton Darryl
• Liu Yinglin

Classifications

• G06K19/07707

  the visual interface being a display, e.g. LCD or electronic ink · CPC title

• G06K19/0716

  at least one of the integrated circuit chips comprising a sensor or an interface to a sensor · CPC title

• G06K7/089 Primary

  hand-held scanners · CPC title

• G06F1/1684

  Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 · CPC title

• G06F3/044

  by capacitive means · CPC title