Touch pen with tilt correction

• US 9,158,392 B2
• Filed: 03/18/2013
• Issued: 10/13/2015
• Est. Priority Date: 03/22/2012
• Status: Expired due to Fees

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Myeong-Sil, Park, Sung-Soo
• Primary Examiner(s): Lao, Lun-Yi
• Assistant Examiner(s): McLoone, Peter D
• Application Number:
  US13/846,290
• Publication Number:
  US 20130285990A1
• Time in Patent Office: 939 Days
• Field of Search: 345/173, 345/174, 345/179, 178/18.02, 178/19.01, 178/19.03
• US Class Current: 1/1
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/046 by electromagnetic means

Abstract

A touch pen is provided. The touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen.

Claims

1. A touch pen, wherein the touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen,

wherein the indication point is indicated on a central axis of an electromagnetic field which is produced as a result of the touch pen contacting the touch panel,

wherein the touch pen comprises a correcting member, which is off-centered relative to a central axis of a body of the touch pen in a first direction where the touch pen approaches the touch panel, and

wherein an indication unit is provided on the touch pen in a second direction opposite to the first direction for allowing a user to determine an off-centered direction relative to the central axis of the body.

2. The touch pen of claim 1, wherein the touch pen comprises:

a ferrite core positioned inside of the body; and

a coil wound around an outer periphery of the ferrite core, wherein the ferrite core is formed asymmetrically to be off-center in relation to a first direction where the touch pen is slanted from the central axis of the body to approach the touch panel.

3. The touch pen of claim 2, wherein the ferrite core comprises:

a first body part formed symmetrically with reference to the central axis of the body; and

a second body part integrally provided at an end of the first body part, and biased to the first direction.

4. The touch pen of claim 3, wherein the second body part is formed in a tapered manner relative to the first direction.

5. The touch pen of claim 3, wherein the second body part is formed at the end of the first body part in a stepped manner relative to the first direction.

6. The touch pen of claim 2, wherein an outer periphery of the body is provided with an indication unit that is configured to indicate an off-centered direction of the ferrite core.

7. The touch pen of claim 6, wherein the indication unit comprises a button protruding from the outer periphery of the body.

8. The touch pen of claim 2, wherein when the touch pen vertically contacts the touch panel, the central axis of the electromagnetic field is produced to be spaced away from the contact point to a direction opposite to the first direction where the touch pen is slanted to approach the touch panel, and wherein when the touch pen slantingly contacts the touch panel, the central axis of the electromagnetic field is indicated to be engaged with the contact point.

9. The touch pen of claim 8, wherein when the touch pen is arranged vertically in relation to the touch panel, the central axis of the electromagnetic field is spaced from the indication point by 0.5 millimeters to 1.0 millimeters, and wherein when the touch pen is arranged slantingly at a slanting angle of 30 degrees to 60 degrees in relation to the touch panel, the indication point and the central axis of the electromagnetic field conform to each other.

10. A touch pen, wherein the touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen,

wherein the indication point is indicated on a central axis of an electromagnetic field which is produced as a result of the touch pen contacting the touch panel, and

wherein the touch pen comprises a correcting member, which is off-center relative to a central axis of a body of the touch pen in a first direction where the touch pen approaches the touch panel and asymmetrical relative to a central axis of the body in a second direction that is perpendicular in the first direction,

wherein the touch pen comprises:

the body;

a ferrite core positioned inside of the body; and

a coil wound around an outer periphery of the ferrite core, wherein the ferrite core is formed asymmetrically to be off-center in relation to the first direction where the touch pen is slanted from the central axis of the body to approach the touch panel,

wherein the ferrite core comprises;

a first body part formed symmetrically with reference to the central axis of the body; and

a second body part integrally provided at an end of the first body part, and biased to the first direction,

wherein the second body part is formed in a tapered manner relative to the first direction.

11. A touch pen, wherein the touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen, wherein the indication point is indicated on a central axis of an electromagnetic field which is produced as a result of the touch pen contacting the touch panel, and

wherein the touch pen comprises a correcting member, which is off-center relative to a central axis of a body of the touch pen in a first direction where the touch pen approaches the touch panel and asymmetrical relative to a central axis of the body in a second direction that is perpendicular in the first direction,

wherein the touch pen comprises:

the body;

a ferrite core positioned inside of the body; and

a coil wound around an outer periphery of the ferrite core, wherein the ferrite core is formed asymmetrically to be off-center in relation to the first direction where the touch pen is slanted from the central axis of the body;

to approach the touch panel

wherein the ferrite core comprises;

a first body part formed symmetrically with reference to the central axis of the body; and

a second body part integrally provided at an end of the first body part, and biased to the first direction,

wherein the second body part is formed at the end of the first body part in a stepped manner relative to the first direction.

12. A touch pen, wherein the touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen, wherein the indication point is indicated on a central axis of an electromagnetic field which is produced as a result of the touch pen contacting the touch panel, and

wherein the touch pen comprises a correcting member, which is off-center relative to a central axis of a body of the touch pen in a first direction where the touch pen approaches the touch panel and asymmetrical relative to a central axis of the body in a second direction that is perpendicular in the first direction,

wherein the touch pen comprises:

the body;

a ferrite core positioned inside of the body; and

a coil wound around an outer periphery of the ferrite core, wherein the ferrite core is formed asymmetrically to be off-center in relation to the first direction where the touch pen is slanted from the central axis of the body to approach the touch panel

wherein when the touch pen vertically contacts the touch panel, the central axis of the electromagnetic field is produced to be spaced away from the contact point to a direction opposite to the first direction where the touch pen is slanted to approach the touch panel, and

wherein when the touch pen slantingly contacts the touch panel, the central axis of the electromagnetic field is indicated to be engaged with the contact point.

13. A touch pen, wherein the touch pen is configured such that an indication point, which is indicated on a touch panel when the touch pen slantingly contacts the touch panel, is corrected to a contact point of the touch pen,

wherein the indication point is indicated on a central axis of an electromagnetic field which is produced as a result of the touch pen contacting the touch panel,

wherein the touch pen comprises a conductive member, which is off-center relative to a central axis of a body of the touch pen in a first direction where the touch pen approaches the touch panel, and

wherein an indication unit is provided on the touch pen in a second direction opposite to the first direction for allowing a user to determine an off-centered direction relative to the central axis of the body.

14. The touch pen of claim 13, wherein the touch pen comprises:

a ferrite core symmetrically disposed inside of the body;

a coil wound around an outer periphery of the ferrite core; and

the conductive member is positioned adjacent to the ferrite core in the first direction.

15. The touch pen of claim 14, wherein an outer periphery of the body is provided with an indication unit that is configured to indicate an off-centered direction, of the ferrite core, in relation to the first direction.