CN1227619C - Electronic pen, start and stop method for starting the electronic pen - Google Patents

Abstract

An electronic pen has a pen body, a cap, and an actuating mechanism having a sensor for detecting whether the cap is fitted over the pen body. The actuation mechanism is operable to actuate the electronic pen in response to removal of the cap from the pen body or placement of the cap in a portion spaced from the front end of the pen body. The actuation mechanism may also be operable to deactivate the electronic pen in response to the cap being disposed on a portion spaced from the front end of the pen body. The starting mechanism can also be used for stopping the electronic pen by acting according to the fact that the pen cap is placed on the pen body. Methods of enabling and disabling an electronic pen are also described herein.

Description

Electronic pen, start and stop method for starting the electronic pen

technical field

The invention relates to an electronic pen with a pen body and a pen cap. The invention also relates to a method for activating an electronic pen and a method for deactivating the electronic pen.

Background technique

Electronic pens typically have sensors and electronics that digitally record what is written with the pen. Different types of sensors for determining its state can be installed in the pen, for example: acceleration sensors (see US-A-5434371 and US-A-6130666), optical sensors (see US-A-5294792, US-A-5852434 and WO 00/73983), a pressure sensor (see US-A-6104388) or a mechanical sensor (see US-A-5294792 and US-A6130666). In other electronic pens, such as that described in US-A-5012049, triangulation of signals (eg light, sound, IR radiation, etc.) is used for position detection.

It remains desirable to find a method of activating and deactivating the above-mentioned electronic pens and other types of electronic pens that is both convenient and intuitive to the user.

Contents of the invention

The purpose of the present invention is to provide an electronic pen to further simplify and improve the application of the electronic pen, especially to make it easier to start and stop, and to provide a method for starting and stopping the electronic pen.

In order to achieve the above-mentioned purpose of the present invention, the present invention provides an electronic pen, comprising a pen body, a pen cap and a starting mechanism, the starting mechanism has a sensor for detecting whether the above-mentioned pen cap is set on the above-mentioned pen body, the above-mentioned The starting mechanism can start the above-mentioned electronic pen when the above-mentioned pen cap is removed from the above-mentioned pen body. Whether to put on.

In order to achieve the above-mentioned purpose of the present invention, the present invention also provides an electronic pen, comprising a pen body, a pen cap and a starting mechanism, the starting mechanism has a sensor for detecting whether the above-mentioned pen cap is set on the above-mentioned pen body, The above-mentioned starting mechanism can work when the above-mentioned pen cap is placed on the above-mentioned pen body to stop the above-mentioned electronic pen from starting. Is the pen cap on?

In order to achieve the above-mentioned purpose of the present invention, the present invention also provides an electronic pen, comprising a pen body, a pen cap provided for protecting the front end of the pen body, and an actuating mechanism, the actuating mechanism has a pen for detecting the above-mentioned The sensor for whether the pen cap is on the part separated from the front end of the pen body, the above-mentioned starting mechanism works when the pen cap is placed on the part separated from the front end of the pen body to start the electronic pen, its features It is that the sensor works non-contact without actual contact with the pen cap to sense whether the pen cap is put on.

In order to achieve the above object of the present invention, the present invention also provides a method for starting an electronic pen having a pen body and a pen cap, comprising the following steps: removing the above-mentioned pen cap from the above-mentioned pen body; detecting that the above-mentioned pen cap has been removed by using a sensor Removed, the sensor works non-contact without actual contact with the pen cap to sense whether the pen cap is removed; and activates the above-mentioned electronic pen.

In order to achieve the above object of the present invention, the present invention also provides a method for stopping the start of an electronic pen having a pen body and a pen cap, comprising the following steps: putting the above pen cap on the above pen body; The cap of the pen has been put on properly, and the sensor works non-contactly with the cap of the pen to sense whether the cap of the pen is put on properly; and the above-mentioned electronic pen is stopped.

In order to achieve the above object of the present invention, the present invention also provides a method for starting an electronic pen with a pen body with a front end and a cap, comprising the steps of: placing the pen cap on the front end of the pen body on the partially separated part; by using a sensor to detect that the above-mentioned pen cap has been installed; electronic pen.

The electronic pen of the present invention adopts a pen cap that is convenient for starting and stopping the electronic pen, and the electronic pen also has a sensor for detecting whether the above-mentioned pen cap is removed from the pen.

According to one embodiment of the invention, the above-mentioned sensor comprises a mechanical switch, the main advantage of which is that no power is required for switching on or off. The use of mechanical switches makes the operation safe and reliable. The method is simple and inexpensive to manufacture due to the large number of standard parts available.

According to another embodiment of the invention, the sensor described above comprises an electrical switch, this method also requires no power, since the electrical switch is a passive element.

According to yet another embodiment of the present invention, the above-mentioned sensor can work without contact. The advantage is that there is no need to open holes on the cover of the pen body, thus improving the structural strength of the pen, reducing dust and water vapor entering the pen body, and making the pen more durable. The closed lid also provides greater resistance to electric shock.

Sensors that work without contact include a motion sensor. The advantage is that the sensor can be placed anywhere in the pen, thus simplifying the assembly of the pen.

According to yet another embodiment of the present invention, the above-mentioned non-contact operating sensor comprises an optical sensor, which provides a convenient and reliable method of detecting whether the pen cap has been removed.

According to a preferred embodiment, the above-mentioned photosensitive device is a solid-state imaging device such as a camera, and this camera is preferably a camera that can be used to record information when the electronic pen is in operation. The advantage of this method is that the electronic pen does not need to add additional parts, which can reduce the size and weight of the pen and reduce the cost.

In yet another embodiment of the present invention, the above-mentioned non-contact working sensor also includes a pressure sensor in addition to the above-mentioned light sensor, which has the advantage that it can more reliably detect whether the cap is removed.

The pressure sensor described above is also preferably used to detect when the writing implement is pressed against the writing surface. Because this method greatly reduces the number of parts in the pen, it is quite simple.

According to one embodiment of the present invention, the above-mentioned non-contact operating sensor utilizes the change of the magnetic field to detect whether the pen cap is removed, which results in a reliable and durable detection method.

One of the ways to take advantage of the change in the magnetic field is to provide a reed switch. In the preferred embodiment, such a reed switch is installed in the pen body and a magnet is installed in the pen cap. This allows a simple and reliable method of forming from standard parts, which is also a way of saving energy, since the above-mentioned reed switch is a passive part.

Another way to take advantage of changes in the magnetic field is to place a Hall element. In a preferred embodiment, the above-mentioned Hall element is arranged inside the pen, and a magnet is arranged inside the pen cap. This approach saves space because the Hall elements and magnets can be made smaller. The availability of a Hall element which is insensitive to temperature changes makes this a reliable method and also a durable method since the Hall element is not subject to wear due to use. The Hall element is a standard part available in the market and is easy to install, which simplifies the manufacturing process of the electronic pen.

In a preferred embodiment, the above-mentioned magnet is installed under the clip on the cap of the pen, which is advantageous, since more space can be given to the magnet on the cap of the pen, so the wall thickness of the cap can be locally increased without changing the overall appearance of the cap, A slot for supporting the magnet is thereby formed. Additionally, the cap clip can be made of a magnetically shielding material such as ferrite to minimize magnetic fields around the pen. This protects, for example, the tape on a credit card in the vicinity of the electronic pen from the magnetic field of the magnet.

In yet another embodiment of the invention, a magnetic field concentrator, such as an element of ferrite material, is mounted near the Hall element, which is advantageous because smaller magnets can be used inside the cap. The magnetic field concentrator also allows the magnet to be positioned further from the Hall element and reduces the need for precision in positioning the magnet relative to the Hall element. In a specific embodiment, a magnet is installed near the Hall element to form an amplified background magnetic field, which can switch the Hall element on or off with a weaker magnetic field.

In yet another embodiment of the present invention, the above-mentioned sensor is a vibration sensor, which is a stable and durable method and is also immune to electrical and magnetic disturbances.

Advantages related to the above are also obtained by the method according to the invention.

Description of drawings

Further illustrate the present invention and many advantages thereof with reference to the accompanying drawings that show the embodiment of preferred example below, in the accompanying drawings:

Fig. 1 shows electronic pen of the present invention;

Fig. 2 shows the enlarged cross-sectional view of the pen cap and part of the pen body of the electronic pen of Fig. 1;

Figure 3 is a partially transparent perspective side view of the pen cap;

Figure 4 is a partially transparent perspective view of the interior of the pen cap.

Detailed ways

The following description is for an electronic pen designed for position detection based on optical registration of a position-coding pattern on a writing surface. The basic features of the electronic pen and graphics described above are also disclosed in patent publications WO 00/73981; WO 01/16691; and WO 01/26032, all of which are incorporated herein by reference. However, it should be understood that the present invention is not limited to the electronic pen shown, but can be used with any type of electronic pen, including the types of electronic pens mentioned in the introduction and other pen-like reading devices such as those disclosed in WO 98/20446. kind of.

Referring to Fig. 1, electronic pen 1 of the present invention has a pen body 2 and a pen cap 3 with clip 4, and this pen cap 3 is arranged on the front end 2a of pen body 2, and it can be used as covering electronic pen 1 in use Any shape of the front end portion 2a for recording information.

Inside the pen body 2, a circuit board 5 is installed (see FIG. 2). Writing implements such as an ink cartridge 6 , a solid-state imaging device (such as a CMOS or CCD camera) 7 and a light emitting diode (LED) 8 are also provided on the front end 2 a of the pen body 2 . On the circuit board 5, a Hall element 9 and a ferrite element (here a screw) 10 are mounted adjacent to each other. As shown in Figure 4, a magnet 11 is placed in the groove 12 on the inner surface of the pen cap 3 below the clip 4, and there is an elongated ridge or elongated protrusion 13 on the side wall of the pen cap 3 next to the bottom of the clip 4 (image 3).

It is also possible to use a magnet ring mounted in the cap or to mold the magnetic material in the cap 3 by, for example, injection molding, for which the magnetic material is mixed with a polymer and then molded in the cap, or by insert molding, Wherein, the polymer material wraps the magnet and molds it into shape.

When the pen cap 3 is placed on the front end portion 2a of the pen body 2, it covers the tip of the ink cartridge 6. As shown in FIG. The pen cap 3 can be detached from the pen body 2 of the electronic pen 1 . Before using the electronic pen 1, remove the cap 3 first. The electronic pen 1 can be activated by taking off the pen cap 3 .

The start of the electronic pen 1 is divided into two stages, that is, when the pen cap 3 is taken off, the electronic pen 1 is in the state of standby mode, and when the tip of the ink tube 6 is pressed on the writing surface, it is pressed by, for example, a pressure connected to the ink cartridge 6. When detected by a sensor (not shown), the electronic pen 1 is fully actuated. The electronic pen 1 is in standby state, which means that for example, the processor in the pen 1 has been started, but the camera 7 and the light emitting diode 8 have not been started yet. In the case of an electronic pen communicating with an external device such as a PDA, computer or mobile phone over a wireless interface such as short-range radio, inductive coupling or infrared light. The electronic pen 1 can be connected with the above-mentioned external devices in the standby state, so that the work of the electronic pen can be connected as a whole.

Full activation of the electronic pen 1 means for example that the camera 7 is activated and the LED 8 is turned on to illuminate the writing surface.

In addition, the standby state can also be omitted, so that the electronic pen 1 is fully actuated when the cap 3 is removed.

The start of the electronic pen can be implemented by sensing elements, and the Hall element 9 and the magnet 11 in the figure are examples of sensing elements. The actuating mechanism of the electronic pen includes the sensing element and any other form of device in the pen for activating the electronic pen.

When the pen cap 3 is removed, the magnet 11 and the Hall element 9 are separated by a certain distance, which causes the magnetic field affecting the Hall element 9 to change, so the voltage difference generated in the Hall element 9 can be used to start the above-mentioned magnetic field in the electronic pen. device.

Other types of magnetic switches, such as reed switches, can also be used.

The ferrite element 10 can attract the magnetic field and concentrate the magnetic field around the Hall element 9, so that the magnet 11 in the pen cap 3 can be made smaller, with a thickness of about 1mm and a diameter of about 3mm. Alternatively, a magnet (not shown) may be installed near the Hall element to locally strengthen the magnetic field on the Hall element. Therefore, only a small increase in the magnetic field is required to switch the Hall element 9 on or off. The movement of the magnet 11 in the groove 12 makes it easy to slide into place, which makes the assembly of the cap 3 simple.

The clip 4 is placed directly on the groove 12 while covering the protrusion 13 . This just can make groove 12 bigger. The clip 4 is made of a ferrite material, so that the outside of the cap is also isolated from the magnet, thereby protecting the magnetic tape of a credit card or the like from magnetic fields.

When the pen cap 3 is placed on the front end 2 a of the electronic pen 1 , the magnetic field affecting the Hall element 9 will change when the magnet 11 approaches the Hall element 9 . The generated voltage is used to deactivate the devices inside the pen 1 . When the pen cap 3 is placed on the pen body 2, it is not necessary for all devices to stop immediately. It may be that the electronic pen 1 ends the ongoing information processing first.

Therefore, the electronic pen 1 can be activated and deactivated using a sensor that can operate without contact.

The above-mentioned pen cap 3 and pen body 2 are designed such that the magnet 11 is located directly above the Hall element 9 when the pen cap 3 covers the front end 2a. For this purpose, for example, the pen body and the pen cap can be made to have a non-circular cross-section (eg oval, polygonal, etc.). And cooperating guide ribs and/or guide grooves can be set on the cap and the pen body.

Instead of the one or more magnetic field sensors mentioned above, the electronic pen may have a sensor that can detect whether the cap is removed by using, for example, light or pressure difference. It is also possible to use vibration sensors instead of the above-mentioned sensors.

For example, an optical sensor that is covered by the cap 3 when the cap 3 is put on the pen may be mounted on the front end portion 2a. When the pen cap 3 is removed, the light sent by the light sensor activates the pen.

In the case of using an optical pen as described above, the camera 7 can be used as such an optical sensor as described above. Therefore, the camera 7 is activated at least periodically to detect whether the cap 3 is removed. In order to reduce energy consumption. Only one or a few imaging components of the camera may be activated. In order to further save energy, it can be designed that the cap 3 can exert pressure on the ink cartridge 6 along its longitudinal direction, so as to generate a corresponding output signal from the pressure sensor. Therefore, the operation of the camera/light sensor can be interrupted when the duration of the pressure sensor output signal is longer than a predetermined time.

When the pen cap 3 is taken out, the electronic pen 1 can be activated according to the signal from the camera 7 or the signal from the pressure sensor. When the pen cap 3 was put on the pen again, the electronic pen 1 stopped acting according to the signal from the camera.

The use of a camera in combination with a pressure sensor has the added advantage of preventing the electronic pen from erroneously disabling the electronic pen when it is used in a dark room.

It is also possible to use a motion sensor preferably arranged longitudinally, such as a linear acceleration sensor, which detects the longitudinal movement of the electronic pen 1 when the cap 3 is separated from the pen body 2 . It is preferably used in combination with some kind of sensor which indicates whether the cap 3 is removed or put on the front end 2a of the pen 1. In this way, the electronic pen 1 is not activated when the pen cap 3 is placed on the front end portion 2a and the pen is moving. For example, a motion sensor can trigger a light sensor (such as a camera) to detect whether the cap 3 is put on or removed, so as to ensure that the electronic pen 1 will not start due to motion when the cap 3 is placed on the pen body 2 .

The start and stop of the electronic pen 1 can also be manipulated by a mechanical switch provided in the front end 2a of the pen 1 . When the pen cap 3 is removed from the pen body, the mechanical switch is released, which enables the device in the pen 1 to be activated. Examples of the above-mentioned mechanical switches are: tilt switches, contact switches, slide switches, and push buttons.

Another method to start and stop the electronic pen 1 is to use an electrical switch, for example, two metal rings protruding from the pen body 2 and a metal piece located in the pen cap 3 . When the pen cap 3 is set on the front end 2a, the above-mentioned metal ring and the metal sheet in the pen cap 3 form a closed circuit. When the pen cap is taken off, the above-mentioned connection is disengaged, and the circuit is disconnected. It is also possible to make the entire inner surface of the pen cap 3 conductive, or to use a metal pen cap 3 .

In another embodiment, removing the pen cap 3 does not activate the pen 1, but putting the pen cap on other parts of the pen body 2, such as the part opposite to the front end 2a, activates the electronic pen 1.

Claims (58)

1. electronic pen, comprise a handwriting, a cap for brush and an actuating mechanism, this actuating mechanism has one and is used to detect the above-mentioned cap for brush and whether is enclosed within sensor on the above-mentioned handwriting, above-mentioned actuating mechanism can is characterized in that described sensor and the described cap for brush do not carry out non-contacting work with having actual contact and whether put with the described cap for brush of sensing at the above-mentioned cap for brush from above-mentioned handwriting is removed time work and start above-mentioned electronic pen.

2. according to the electronic pen of claim 1, it is characterized in that above-mentioned sensor comprises a kind of motion sensor.

3. according to the electronic pen of claim 1, it is characterized in that above-mentioned sensor comprises a kind of optical sensor.

4. according to the electronic pen of claim 3, it is characterized in that above-mentioned optical sensor is a kind of solid state image device.

5. according to the electronic pen of claim 4, it is characterized in that when above-mentioned electronic pen was worked, above-mentioned solid state image device can be used for recorded information.

6. according to the electronic pen of claim 3, it is characterized in that above-mentioned sensor also comprises a kind of pressure transducer.

7. according to the electronic pen of claim 6; it is characterized in that; also comprise a writing implement; the above-mentioned cap for brush covers above-mentioned writing implement so that protect above-mentioned writing implement when above-mentioned electronic pen is not worked, and above-mentioned pressure transducer can be used for detecting above-mentioned writing implement and when is pressed on the writing surface.

8. according to the electronic pen of claim 1, it is characterized in that the sensor utilizes the variation in magnetic field to detect the above-mentioned cap for brush and whether is enclosed within on the above-mentioned handwriting.

9. electronic pen according to Claim 8 is characterized in that, above-mentioned sensor comprises a kind of reed switch.

10. according to the electronic pen of claim 9, it is characterized in that above-mentioned reed switch is installed in the above-mentioned handwriting, and in the above-mentioned cap for brush, a magnet is installed.

11. the electronic pen according to claim 10 is characterized in that, above-mentioned magnet is installed under the clip on the above-mentioned cap for brush.

12. electronic pen according to Claim 8 is characterized in that, above-mentioned sensor comprises a Hall element.

13. the electronic pen according to claim 12 is characterized in that, above-mentioned Hall element is installed in the above-mentioned handwriting, and in the above-mentioned cap for brush magnet is installed.

14. the electronic pen according to claim 13 is characterized in that, above-mentioned magnet is installed under the clip on the above-mentioned cap for brush.

15. the electronic pen according to claim 12 is characterized in that, settles magnetic field collector, for example a sheet metal near above-mentioned Hall element.

16. the electronic pen according to claim 12 is characterized in that, settles a magnet near above-mentioned Hall element.

17. the electronic pen according to claim 1 is characterized in that, above-mentioned sensor comprises a kind of vibration transducer.

18. electronic pen, comprise a handwriting, a cap for brush and an actuating mechanism, this actuating mechanism has one and is used to detect the above-mentioned cap for brush and whether is enclosed within sensor on the above-mentioned handwriting, above-mentioned actuating mechanism can be worked when the above-mentioned cap for brush is placed on the above-mentioned handwriting and be made above-mentioned electronic pen stop to start, and it is characterized in that the described sensor and the described cap for brush do not carry out non-contacting work with having actual contact and whether put with the described cap for brush of sensing.

19. the electronic pen according to claim 18 is characterized in that, above-mentioned sensor comprises a kind of motion sensor.

20. the electronic pen according to claim 18 is characterized in that, above-mentioned sensor comprises a kind of optical sensor.

21. the electronic pen according to claim 20 is characterized in that, above-mentioned optical sensor is a kind of solid state image device.

22. the electronic pen according to claim 21 is characterized in that, when above-mentioned electronic pen was worked, above-mentioned solid state image device can be used for recorded information.

23. the electronic pen according to claim 20 is characterized in that, above-mentioned sensor also comprises a kind of pressure transducer.

24. electronic pen according to claim 23; it is characterized in that; also comprise a writing implement; the above-mentioned cap for brush covers above-mentioned writing implement so that protect above-mentioned writing implement when above-mentioned electronic pen is not worked, and above-mentioned pressure transducer can be used for detecting above-mentioned writing implement and when is pressed on the writing surface.

25. the electronic pen according to claim 18 is characterized in that, whether the sensor utilizes the variation in magnetic field to detect the above-mentioned cap for brush and is enclosed within on the above-mentioned handwriting.

26. the electronic pen according to claim 25 is characterized in that, above-mentioned sensor comprises a kind of reed switch.

27. the electronic pen according to claim 26 is characterized in that, above-mentioned reed switch is installed in the above-mentioned handwriting, and in the above-mentioned cap for brush magnet is installed.

28. the electronic pen according to claim 27 is characterized in that, above-mentioned magnet is installed under the clip on the above-mentioned cap for brush.

29. the electronic pen according to claim 25 is characterized in that, above-mentioned sensor comprises a Hall element.

30. the electronic pen according to claim 29 is characterized in that, above-mentioned Hall element is installed in the above-mentioned handwriting, and in the above-mentioned cap for brush magnet is installed.

31. the electronic pen according to claim 30 is characterized in that, above-mentioned magnet is installed under the clip on the above-mentioned cap for brush.

32. the electronic pen according to claim 29 is characterized in that, settles magnetic field collector, for example a sheet metal near above-mentioned Hall element.

33. the electronic pen according to claim 29 is characterized in that, settles a magnet near above-mentioned Hall element.

34. the electronic pen according to claim 18 is characterized in that, above-mentioned sensor comprises a kind of vibration transducer.

35. electronic pen; comprise the cap for brush and an actuating mechanism that a handwriting, one are provided with for the leading section of protecting this handwriting; this actuating mechanism has one and is used to survey the above-mentioned cap for brush and whether is in sensor on the part of opening with the said front part of above-mentioned handwriting; thereby above-mentioned actuating mechanism is placed on to work on the part that above-mentioned and leading section above-mentioned handwriting separate according to the above-mentioned cap for brush and starts above-mentioned electronic pen, it is characterized in that the described sensor and the described cap for brush do not have actual contact ground and carry out non-contacting work and whether put with the described cap for brush of sensing.

36. the electronic pen according to claim 35 is characterized in that, the above-mentioned part of opening with said front part above-mentioned handwriting is the part relative with above-mentioned leading section.

37. the electronic pen according to claim 35 is characterized in that, above-mentioned sensor comprises a kind of motion sensor.

38. the electronic pen according to claim 35 is characterized in that, above-mentioned sensor comprises a kind of optical sensor.

39. the electronic pen according to claim 38 is characterized in that, above-mentioned optical sensor is a kind of solid state image device.

40. the electronic pen according to claim 39 is characterized in that, when above-mentioned electronic pen was worked, above-mentioned solid state image device can be used for recorded information.

41. the electronic pen according to claim 38 is characterized in that, above-mentioned sensor also comprises a kind of pressure transducer.

42. electronic pen according to claim 41; it is characterized in that; also comprise a writing implement; the above-mentioned cap for brush covers above-mentioned writing implement so that protect above-mentioned writing implement when above-mentioned electronic pen is not worked, and above-mentioned pressure transducer can be used for detecting above-mentioned writing implement and when is pressed on the writing surface.

43. the electronic pen according to claim 35 is characterized in that, whether the sensor utilizes the variation in magnetic field to detect the above-mentioned cap for brush and is enclosed within on the above-mentioned handwriting.

44. the electronic pen according to claim 43 is characterized in that, above-mentioned sensor comprises a kind of reed switch.

45. the electronic pen according to claim 44 is characterized in that, above-mentioned reed switch is installed in the above-mentioned handwriting, and in the above-mentioned cap for brush magnet is installed.

46. the electronic pen according to claim 45 is characterized in that, above-mentioned magnet is installed under the clip on the above-mentioned cap for brush.

47. the electronic pen according to claim 43 is characterized in that, above-mentioned sensor comprises a Hall element.

48. the electronic pen according to claim 47 is characterized in that, above-mentioned Hall element is installed in the above-mentioned handwriting, and in the above-mentioned cap for brush magnet is installed.

49. the electronic pen according to claim 48 is characterized in that, above-mentioned magnet is installed under the clip on the above-mentioned cap for brush.

50. the electronic pen according to claim 47 is characterized in that, settles magnetic field collector, for example a sheet metal near above-mentioned Hall element.

51. the electronic pen according to claim 47 is characterized in that, settles a magnet near above-mentioned Hall element.

52. the electronic pen according to claim 35 is characterized in that, above-mentioned sensor comprises a kind of vibration transducer.

53. a startup has the method for the electronic pen of the handwriting and the cap for brush, comprises following steps:

Remove the above-mentioned cap for brush from above-mentioned handwriting;

Really removed by using a sensor to detect the above-mentioned cap for brush, whether the described sensor and the described cap for brush do not carry out non-contacting work with having actual contact and have taken away with the described cap for brush of sensing; With

Start above-mentioned electronic pen.

54. the method according to claim 53 is characterized in that, the step that the above-mentioned cap for brush of above-mentioned detection is really removed comprises the following steps:

Measure the variation in magnetic field.

55. a method that makes electronic pen with handwriting and cap for brush stop to start comprises following steps:

The above-mentioned cap for brush is enclosed within on the above-mentioned handwriting;

Really package by using a sensor to detect the above-mentioned cap for brush, whether the described sensor and the described cap for brush do not carry out non-contacting work with having actual contact and package with the described cap for brush of sensing; With

Make above-mentioned electronic pen stop to start.

56. the method according to claim 55 is characterized in that, the step that the above-mentioned cap for brush of above-mentioned detection packages really comprises the steps:

Measure the variation in magnetic field.

57. a startup has the method for the electronic pen of a handwriting that has a leading section and a cap for brush, comprises following steps:

The above-mentioned cap for brush is placed on the part of opening with the said front part of above-mentioned handwriting;

Place by using a sensor to detect the above-mentioned cap for brush, the described sensor and the described cap for brush do not carry out non-contacting work with having actual contact and place with the described cap for brush of sensing; With

Start above-mentioned electronic pen.

58. the method according to claim 57 is characterized in that, the step that the above-mentioned cap for brush of above-mentioned detection has placed comprises the steps:

Measure the variation in magnetic field.

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