Transmitter and transmitting method thereof

• US 10,303,271 B2
• Filed: 02/25/2015
• Issued: 05/28/2019
• 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): Elahi, Towfiq
• Application Number:
  US14/631,295
• Publication Number:
  US 20150242003A1
• Time in Patent Office: 1,553 Days
• Field of Search: 345179
• CPC Class Codes: G06F 2203/04108 Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction
• 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 3/04162 for exchanging data with external devices, e.g. smart pens, via the digitiser sensing hardware
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0441 using active external devices, e.g. active pens, for receiving changes in electrical potential transmitted by the digitiser, e.g. tablet driving signals
• CPC Class Codes: G06F 3/0442 using active external devices, e.g. active pens, for transmitting changes in electrical potential to be received by the digitiser
• 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

A transmitter is provided by the present application. The transmitter comprises a tip section, wherein the transmitter is configured for generating a first signal according to a pressure level applying to the tip section and for transmitting an electric signal including the first signal via the tip section, wherein a property of the electric signal reflects the pressure level.

Claims

1. A transmitter, comprising a tip section, wherein the transmitter is configured for generating a first signal according to a pressure level applying to the tip section and for transmitting an electric signal including the first signal via the tip section, wherein a property of the electric signal reflects the pressure level, wherein the first signal is analog.

2. The transmitter of claim 1, wherein the electric signal is analog.

3. The transmitter of claim 1, wherein the property is a ratio of signal strengths corresponding to the first signal and a second signal included in the electric signal.

4. The transmitter of claim 3, wherein the first signal is the signal with a first frequency group included in the electric signal, the second signal is the signal with a second frequency group included in the electric signal.

5. The transmitter of claim 4, further comprises a first component and a second component, wherein the first component is configured for generating the first signal according to the pressure level, and the second component is configured for generating the second signal.

6. The transmitter of claim 5, further comprises an amplifier for receiving the first signal outputted from the first component and the second signal outputted from the second component and outputting the amplified electric signal to the tip section.

7. The transmitter of claim 5, further comprises:

a first amplifier for receiving and amplifying output signal from a first signal source to the first component; and

a second amplifier for receiving and amplifying output signal from a second signal source to the second component.

8. The transmitter of claim 3, wherein the first signal is the electric signal during a first time period, and the second signal is the electric signal during a second time period.

9. The transmitter of claim 8, wherein the first signal and the second signal are with the same frequency group.

10. The transmitter of claim 8, further comprises a first component and a second component, wherein the first component is configured for generating the first signal according to the pressure level, and the second component is configured for generating the second signal.

11. The transmitter of claim 10, further comprises an amplifier for receiving the first signal outputted from the first component and the second signal outputted from the second component and outputting the amplified electric signal to the tip section.

12. A transmitting method of a transmitter, wherein the transmitter comprises a tip section, the method comprising:

generating a first signal according to a pressure level applying to the tip section; and

transmitting an electric signal including the first signal via the tip section, wherein a property of the electric signal reflects the pressure level,

wherein the first signal is analog.

13. The transmitting method of claim 12, wherein the electric signal is analog.

14. The transmitting method of claim 12, wherein the property is a ratio of signal strengths corresponding to the first signal and a second signal included in the electric signal.

15. The transmitting method of claim 14, wherein the first signal is the signal with a first frequency group included in the electric signal, the second signal is the signal with a second frequency group included in the electric signal.

16. The transmitting method of claim 15, wherein the transmitter further comprises a first component and a second component, wherein the first component is configured for generating the first signal according to the pressure level, and the second component is configured for generating the second signal.

17. The transmitting method of claim 14, wherein the first signal is the electric signal during a first time period, and the second signal is the electric signal during a second time period.

18. The transmitting method of claim 17, wherein the first signal and the second signal are with the same frequency group.

19. The transmitting method of claim 18, wherein the transmitter further comprises a first component and a second component, wherein the first component is configured for generating the first signal according to the pressure level, and the second component is configured for generating the second signal.

20. A transmitting method of a transmitter, wherein the transmitter comprises a tip section and a power source, the method comprising:

generating a first signal with said power source according to a pressure level applying to the tip section; and

transmitting an electric signal including the first signal via the tip section, wherein a property of the electric signal reflects the pressure level,

wherein the first signal is analog.