METHOD OF DETECTING TOUCH INPUT, APPARATUS FOR SENSING TOUCH INPUT, AND APPARATUS FOR INPUTTING TOUCH INPUT

• US 20150317021A1
• Filed: 04/30/2015
• Published: 11/05/2015
• Est. Priority Date: 04/30/2014
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: PARK, Sung-soo, KANG, Byung-hoon
• Granted Patent: US 9,864,475 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 3/03545 Pens or stylus
• 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 3/046 by electromagnetic means
• CPC Class Codes: G09G 2370/16 Use of wireless transmission of display information
• CPC Class Codes: G09G 5/003 Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto specific for a CRT G09G1/165; for a flat panel G09G3/2092

Abstract

A method of detecting an input of an input marking apparatus includes generating and outputting a number signal to be written to the input marking apparatus, detecting the input marking apparatus in which the number signal is written, by detecting a response signal output from the input marking apparatus, and detecting a position of the input of the input marking apparatus of which the response signal is detected.

Claims

1. A method of detecting an input of an input marking apparatus, the method comprising:

generating and outputting a number signal to be written to the input marking apparatus;

detecting the input marking apparatus in which the number signal is written, by detecting a response signal output from the input marking apparatus; and

detecting a position of the input of the input marking apparatus of which the response signal is detected.

2. The method of claim 1, wherein the position of the input is detected by using an antenna that detects a resonance signal,

the method further comprising changing a drive axis of an antenna drive signal when a distance between a plurality of input marking apparatuses is less than a reference value.

3. The method of claim 1, wherein the position of the input is detected by using an antenna that detects a resonance signal,

the method further comprising changing a drive sequence of an antenna drive signal when a distance between a plurality of input marking apparatuses is less than a reference value.

4. The method of claim 1, wherein, in the detecting of the input marking apparatus, after the number signal is output, the input marking apparatus is detected by detecting a number acceptance signal with respect to the umber signal.

5. The method of claim 1, wherein the detecting of the input marking apparatus comprises:

generating and outputting a response request signal with respect to the number signal after the number signal is output; and

detecting the input marking apparatus by detecting a response signal with respect to the response request signal.

6. The method of claim 1, further comprising:

generating and outputting a pen pressure request signal that requests information about a pen pressure with respect to an input marking apparatus associated with a particular number; and

acquiring the information about the pen pressure of the input marking apparatus associated with the particular number by receiving a pen pressure signal output by the input marking apparatus corresponding to the particular number.

7. The method of claim 1, further comprising:

generating and outputting additional information request signal that requests additional information with respect to an input marking apparatus associated with a particular number; and

acquiring the additional information of the input marking apparatus associated with the particular number by receiving an additional information signal output by the input marking apparatus corresponding to the particular number.

8. The method of claim 7, wherein the additional information comprises information about a state of a button provided in the input marking apparatus.

9. The method of claim 1, further comprising determining a delay between a response request signal and a response signal according to the number signal written to the touch-input marking apparatus.

10. The method of claim 1, wherein the detecting of a position of the input of the input marking apparatus comprises:

detecting a response signal from at least two input marking apparatuses respectively associated with at least two numbers;

and

if paths of touch inputs of the at least two input marking apparatuses cross each other, detecting positions of the touch inputs of the at least two input marking apparatuses of which paths cross each other.

11. An apparatus for sensing an input of an input marking apparatus, the apparatus comprising:

an antenna which is configured to receive a signal from the input marking apparatus and detect a position of an input of the input marking apparatus; and

an input sensing apparatus controller which is configured to generate and output a number signal to be written to the input marking apparatus, detect the input marking apparatus where the number signal is written, by receiving a response signal output from the input marking apparatus, and acquire information about the position of the input of the input marking apparatus of which the response signal is detected, by using the antenna.

12. The apparatus of claim 11, wherein the input sensing apparatus controller changes a drive axis of an antenna drive signal when a distance between a plurality of input marking apparatuses is less than a reference value.

13. The apparatus of claim 11, wherein the input sensing apparatus controller changes a drive sequence of an antenna drive signal when a distance between a plurality of input marking apparatuses is less than a reference value.

14. The apparatus of claim 11, wherein, after the number signal is output, the input sensing apparatus controller detects the input marking apparatus by detecting a number acceptance signal with respect to the number signal.

15. The apparatus of claim 11, wherein the input sensing apparatus controller acquires the information about a position of the input marking apparatus by generating and outputting a response request signal with respect to the number signal after the number signal is output, and detecting a response signal with respect to the response request signal.

16. The apparatus of claim 11, wherein the input sensing apparatus controller generates and outputs a pen pressure request signal that requests information about a pen pressure with respect to an input marking apparatus associated with a particular number, and acquires the information about the pen pressure of the input marking apparatus associated with the particular number by receiving a pen pressure signal output by the input marking apparatus corresponding to the particular number.

17. The apparatus of claim 16, wherein the input marking apparatus changes a state function of the input marking apparatus according to the number signal transmitted by the input sensing apparatus controller and determines the response signal according to a combination of the state function and the response request signal transmitted by the input sensing apparatus.

18. The apparatus of claim 11, wherein the input sensing apparatus controller generates and outputs an additional information request signal that requests additional information with respect to a input marking apparatus associated with a particular number, and acquires the additional information of the input marking apparatus associated with the particular number by receiving an additional information signal output by the input marking apparatus corresponding to the particular number.

19. The apparatus of claim 18, wherein the additional information comprises information about a state of a button provided in the input marking apparatus.

20. The apparatus of claim 11, wherein a delay between a response request signal and a response signal is determined according to the number signal written to the input marking apparatus.

21. The apparatus of claim 11, wherein the touch-input sensing apparatus controller detects positions of at least two inputs by tracking positions of the at least two inputs of at least two input marking apparatuses of which response signals are detected when paths of the at least two inputs of the at least two input marking apparatuses cross each other.

22. An apparatus for marking an input, the apparatus comprising:

a storage which is configured to store a number signal output by an input sensing apparatus;

an input marking apparatus controller which is configured to generate and output a response signal according to a response request signal and the number signal output by the input sensing apparatus; and

a resonance signal outputter which is configured to generate and output a resonance signal.

23. The apparatus of claim 22, wherein the input sensing apparatus controller determines a delay between the response request signal and the response signal according to the number signal.

24. The apparatus of claim 22, wherein, when the response request signal is detected and a reference time passes, the input marking apparatus controller erases the number signal stored in the storage.

25. The apparatus of claim 22, wherein, when the number signal is input, the input marking apparatus control unit generates and outputs a number acceptance signal.

26. The apparatus of claim 22, further comprising a pen pressure detector which is configured to detect a pen pressure of the input marking apparatus,

wherein, when a pen pressure request signal that requests information about a pen pressure corresponding to a number of the input marking apparatus is received, the input marking apparatus controller outputs a pen pressure signal including information about the pen pressure.

27. The apparatus of claim 22, wherein the storage stores additional information about the input marking apparatus, and

when the additional information request signal that requests additional information corresponding to a number of the input marking apparatus is received, the input sensing apparatus controller outputs an additional information signal including the additional information.

28. The apparatus of claim 27, wherein the input marking apparatus comprises a button for setting a state of the input marking apparatus, and

the additional information comprises information about a state of the button.