Transmitter set for concurrent transmission, transmitting method thereof, and touch sensitive system

• US 10,061,410 B2
• Filed: 11/10/2014
• Issued: 08/28/2018
• Est. Priority Date: 11/08/2013
• Status: Active Grant

• Current Assignee: eGalax_eMPIA Technology Inc.
• Original Assignee: eGalax_eMPIA Technology Inc.
• Inventors: Chang, Chin-Fu
• Primary Examiner(s): Edwards, Carolyn R
• Application Number:
  US14/537,368
• Publication Number:
  US 20150130735A1
• Time in Patent Office: 1,387 Days
• CPC Class Codes: G06F 2203/0382 Plural input, i.e. interface arrangements in which a plurality of input device of the same type are in communication with a PC
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/0354 with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
• CPC Class Codes: G06F 3/03543 Mice or pucks G06F3/03541 takes precedence
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/0383 Signal control means within the pointing device
• CPC Class Codes: G06F 3/0416 Control or interface arrangements specially adapted for digitisers
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

The present invention provides a set of transmitters which transmits signals concurrently. The set comprises a first role transmitter configured to transmit a first electrical signal according to a first role transmitter status to a touch sensitive device; and a second role transmitter configured to transmit a second electrical signal according to a second role transmitter status to said touch sensitive device. In consequence, the touch sensitive device is configured to analyze the first and the second electrical signals concurrently transmitted and to get the first and the second role transmitter status as well as a first relative position between the first role transmitter and the touch sensitive device and a second relative position between the second role transmitter and the touch sensitive device.

Claims

1. A transmitter set for transmitting signals concurrently, comprising:

a first role transmitter configured to actively transmit a first electrical signal according to a first role transmitter status to a capacitive touch sensitive device, wherein said first electrical signal is not resonant to any signals emitted from said capacitive touch sensitive device; and

a second role transmitter configured to actively transmit a second electrical signal according to a second role transmitter status to said capacitive touch sensitive device, wherein said second electrical signal is not resonant to any signals emitted from said capacitive touch sensitive device, allowing the capacitive touch sensitive device to analyze the first and the second electrical signals concurrently transmitted and to get the first and the second role transmitter statuses as well as a first relative position between the first role transmitter and the capacitive touch sensitive device and a second relative position between the second role transmitter and the capacitive touch sensitive device.

2. The transmitter set of claim 1, wherein the first and the second role transmitters are of the same type.

3. The transmitter set of claim 1, wherein the first electrical signal is made up of a mixture of a plurality of frequencies.

4. The transmitter set of claim 3, wherein the second electrical signal is made up of the mixture of the plurality of frequencies.

5. The transmitter set of claim 3, wherein the second electrical signal is made up of a subset of the mixture of the plurality of frequencies.

6. The transmitter set of claim 1, wherein the first role transmitter includes a first configuration module for configuring the role of the first role transmitter, and the second role transmitter includes a second configuration module for configuring the role of the second role transmitter.

7. The transmitter set of claim 6, wherein when the roles of the first and the second role transmitters are different, the frequency mixing of the first electrical signal is different from the frequency mixing of the second electrical signal.

8. The transmitter set of claim 6, wherein the first configuration module includes a human-machine interface to allow a user to manually configure the role of the first role transmitter.

9. The transmitter set of claim 6, wherein the first configuration module includes a wireless communication interface or a wired communication interface connected to a computer to allow a user to configure the role of the first role transmitter via the wireless communication interface or the wired communication interface using the computer.

10. The transmitter set of claim 9, wherein the user is allowed to configure the corresponding relationships between the first role transmitter status and the frequencies mixed in the first electrical signal.

11. A transmitting method applicable to a set of transmitters including a first role transmitter and a second role transmitter for transmitting signals concurrently, the method comprising:

generating a first role transmitter status according to a status of the first role transmitter;

generating a second role transmitter status according to a status of the second role transmitter;

configuring the first role transmitter to actively transmit a first electrical signal according to the first role transmitter status, wherein said first electrical signal is not resonant to any signals emitted from a capacitive touch sensitive device; and

configuring the second role transmitter to actively transmit a second electrical signal concurrently according to the second role transmitter status, wherein said second electrical signal is not resonant to any signals emitted from said capacitive touch sensitive device, enabling a capacitive touch sensitive device to analyze the first and the second electrical signals concurrently transmitted and to get the first and the second role transmitter statuses as well as a first relative position between the first role transmitter and the capacitive touch sensitive device and a second relative position between the second role transmitter and the capacitive touch sensitive device.

12. The transmitting method of claim 11, wherein the first and the second role transmitters are of the same type.

13. The transmitting method of claim 11, further comprising mixing a plurality of frequencies to generate the first electrical signal.

14. The transmitting method of claim 13, further comprising mixing the plurality of frequencies to generate the second electrical signal.

15. The transmitting method of claim 13, further comprising mixing a subset of the plurality of frequencies to generate the second electrical signal.

16. The transmitting method of claim 11, further comprising:

configuring the role of the first role transmitter; and

configuring the role of the second role transmitter.

17. The transmitting method of claim 16, wherein when the roles of the first and the second role transmitters are different, the frequency mixing of the first electrical signal is different from the frequency mixing of the second electrical signal.

18. The transmitting method of claim 16, further comprising allowing a user to manually configure the role of the first role transmitter via a human-machine interface.

19. The transmitting method of claim 16, further comprising connecting to a computer via a wireless communication interface or a wired communication interface of the first role transmitter to allow a user to configure the role of the first role transmitter via the wireless communication interface or the wired communication interface using the computer.

20. The transmitting method of claim 19, further comprising configuring the corresponding relationships between the first role transmitter status and the frequencies mixed in the first electrical signal.

21. A touch sensitive system, comprising:

a first role transmitter configured to transmit a first electrical signal according to a first role transmitter status to a capacitive touch sensitive device, wherein said first electrical signal is not resonant to any signals emitted from said capacitive touch sensitive device;

a second role transmitter configured to transmit a second electrical signal according to a second role transmitter status to said capacitive touch sensitive device, wherein said second electrical signal is not resonant to any signals emitted from said capacitive touch sensitive device; and

the capacitive touch sensitive device configured to analyze the first and the second electrical signals concurrently transmitted and to get the first and the second role transmitter statuses as well as a first relative position between the first role transmitter and the capacitive touch sensitive device and a second relative position between the second role transmitter and the capacitive touch sensitive device.