Method and apparatus for data transmission via capacitance sensing device

Patent metadata

Field	Value
Publication number	US-9891765-B2
Application number	US-201514609274-A
Country	US
Kind code	B2
Filing date	Jan 29, 2015
Priority date	Feb 23, 2012
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A system made up of a first device which includes a communication interface and a processing device and a second device which includes a touch sensor assembly and a controller, where the controller uses the touch sensor assembly to communicate with the processing device through a capacitor that is jointly formed by the touch sensor assembly and a conductive portion of the communications interface.

First claim

What is claimed is:

1. A touch sensing system for transmitting data between electronic computing devices, comprising:
a first device comprising a communication interface and a processing device;
a second device comprising a touch sensor assembly and a controller, the controller configured to communicate with the processing device through the touch sensor assembly by transmitting signals via capacitive coupling through a capacitor that is jointly formed by the second device and a conductive portion of the communications interface.

2. The touch sensing system of claim 1 , wherein the first device comprises a capacitance sensing device.

3. The touch sensing system of claim 1 , wherein the second device comprises a touchscreen phone handset.

4. The touch sensing system of claim 1 , wherein the controller is configured to communicate device authentication information to the processing device.

5. The touch sensing system of claim 1 , wherein the controller is configured to communicate password information to the processing device.

6. The touch sensing system of claim 1 , wherein the controller is configured to communicate mobile payment information to the processing device.

7. The touch sensing system of claim 1 , wherein the capacitor is jointly formed by the touch sensor assembly of the second device and a conductive portion of the communications interface and is configured to implement a communications channel of an electronic wallet between the processing device and the controller.

8. The touch sensing system of claim 1 , wherein the controller is configured to at least one of transmit and receive Universal Asynchronous Receiver/Transmitter (UART) serial data through the touch sensor assembly.

9. A touch sensing device for transmitting data between electronic computing devices comprising:
a touch sensor assembly and a controller, the controller configured to communicate with an object comprising a processing device communications interface, wherein the controller is configured to communicate with the processing device through the touch sensor assembly by transmitting signals via capacitive coupling through a capacitor that is jointly formed by the device and a conductive portion of the communications interface.

10. The touch sensing device of claim 9 , wherein the object comprises a capacitance sensing device.

11. The touch sensing device of claim 9 , wherein the device comprises a touchscreen phone handset.

12. The touch sensing device of claim 9 , wherein the controller is configured to communicate device authentication information to the processing device.

13. The touch sensing device of claim 9 , wherein the controller is configured to communicate password information to the processing device.

14. The touch sensing device of claim 9 , wherein the controller is configured to communicate mobile payment information to the processing device.

15. The touch sensing device of claim 9 , wherein the capacitor is jointly formed by the touch sensor assembly of the conductive device and a conductive portion of the communications interface and is configured to implement a communications channel of an electronic wallet between the processing device and the controller.

16. The touch sensing device of claim 9 , wherein the controller is configured to at least one of transmit and receive Universal Asynchronous Receiver/Transmitter (UART) serial data through the touch sensor assembly.

17. A method of transmitting data between electronic computing devices via a touch sensor, comprising:
communicating, by a controller of a first device, serial data through an array of capacitive sensor elements of a touch sensor assembly of the first device to a processing element of a second device, the second device comprising a communications interface located proximate to the first device, by transmitting signals via capacitive coupling through a capacitor that is jointly formed by the first device and a conductive portion of the communications interface.

18. The method of claim 17 , wherein the serial data comprises device authentication information.

19. The method of claim 17 , wherein the serial data comprises mobile payment information.

20. The method of claim 17 , wherein the first device comprises a touchscreen phone handset.

Assignees

• Cypress Semiconductor Corp

Inventors

• Wright David G

Classifications

• H04B5/0012

  Electricity · mapped topic

• G06Q20/3674

  involving authentication · CPC title

• H04M1/72519

  Electricity · mapped topic

• H04B5/0043

  Electricity · mapped topic

• G06F3/044 Primary

  by capacitive means · CPC title