KR100980256B1 - Apparatus for inputting handwriting and method for driving thereof - Google Patents

Abstract

A handwriting input device and a method of operating the same are provided. The writing input device is coupled to correspond to the writing input unit at a lower portion of the first substrate and the first substrate including a writing input unit for the user to perform the writing input, and detects a pressure generated according to the user's writing input from the writing input unit. And a second substrate configured to output user writing data.

e-post it, handwriting input, switch

Description

Handwriting input device and its operation method {Apparatus for inputting handwriting and method for driving}

Embodiments of the present invention relate to a handwriting input device and a method of operating the same, and more particularly, to a handwriting input device capable of recognizing a user's handwriting input and a method of operating the same.

Recently, as a technology for recognizing and digitizing a user's handwriting input has emerged, interface technologies for this have been developed.

Methods of recognizing a user's handwriting input include an electromagnetic sensor board method, a camera sensor method, an electromagnetic signal recognition method, and a conductive panel method.

However, conventional methods for recognizing a user's handwriting input may be performed by a user inputting and recognizing a handwriting using a dedicated pen or a dedicated panel, or by recognizing the user's handwriting by placing a piece of paper on a conventional input device. Methods were used. In addition, conventional user handwriting input devices have been able to digitize only once when a user inputs handwriting. Accordingly, a new type of user handwriting input device is required.

An object of the present invention is to provide a handwriting input device capable of recognizing a user's handwriting input.

Another object of the present invention is to provide an operation method of such a handwriting input device.

The handwriting input device according to an embodiment of the present invention for solving the above problems is coupled to correspond to the handwriting input unit below the first substrate and the first substrate including a handwriting input unit for the user to perform a handwriting input, And a second substrate configured to detect pressure generated according to a user's handwriting input from the handwriting input unit and output user handwriting data.

According to another aspect of the present invention, there is provided a method of operating a handwriting input device, the method comprising: a user performing handwriting input to a handwriting input unit of a handwriting input device; And outputting user handwriting data by detecting the pressure generated accordingly.

According to a handwriting input device and an operation method thereof according to an embodiment of the present invention, a user may digitize by performing a handwriting input without using a dedicated handwriting input device, and the user's handwriting once input may be digitized again at any time. There is an effect that can maximize the usability of the handwriting input recognition device.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the embodiments of the present invention, reference should be made to the accompanying drawings which illustrate embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic perspective view of a handwriting input device according to an embodiment of the present invention, FIG. 2 is a schematic block diagram of the handwriting input device shown in FIG. 1, and FIGS. 3A and 3B are views of part A of FIG. 2. A schematic cross section.

1 and 2, the writing input device 300 according to an embodiment of the present invention may include a first substrate 200 and a second substrate 100.

The first substrate 200 may be combined with the second substrate 100 from the top of the second substrate 100, and may be formed of a recording medium such as paper, for example, a paper that receives and receives a writing input from a user. Can be. In this embodiment, the first substrate 200 made of paper is illustrated as an example, but the present invention is not limited thereto.

A writing input unit 210 may be formed on the first substrate 200 to receive writing from a user. The first substrate 200 may be formed to the same size as the second substrate 100, and thus may serve to protect the plurality of components of the second substrate 100 from being exposed to the outside.

The second substrate 100 may be combined with the first substrate 200, and may recognize a pressure provided from the writing input unit 210 of the first substrate 200, for example, a pressure generated according to a user's writing input. May generate a handwritten data signal Data.

The second substrate 100 may include a handwriting recognition unit 110 and a driving unit 150.

The handwriting recognition unit 110 may be provided with a plurality of sensors capable of recognizing a user's handwriting input, for example, a plurality of switches 120, and the driving unit 150 may be connected to a driving signal DS provided from the outside. Accordingly, the handwriting recognition unit 110 may be operated.

For example, the handwriting recognition unit 110 of the second substrate 100 may include a plurality of first lines La_1, La_2, ... La_n, a plurality of second lines Lb_1, Lb_2, ... Lb_n, and a plurality of switches. 120 may be included.

The writing recognition unit 110 may be formed to correspond to the same size as the writing input unit 210 of the first substrate 200, and the driving unit 150 may include a second substrate except for an area where the writing recognition unit 110 is formed. It may be formed in the remaining area of the (100).

For example, the driving unit 150 may be formed on the second substrate 100 together with the handwriting recognition unit 110 in the form of a one-chip, and in some cases, may be formed outside the second substrate 100. It may be formed and connected to the second substrate 100.

Each of the plurality of first lines La_1, La_2,..., La_n of the handwriting recognition unit 110 may be formed on the second substrate 100 at regular intervals. For example, the plurality of first lines La_1, La_2,..., La_n may extend in a first direction, for example, a longitudinal length direction, of the second substrate 100.

Each of the plurality of second lines Lb_1, Lb_2,... Lb_n of the handwriting recognition unit 110 may be formed on the second substrate 100 at regular intervals. For example, the plurality of second lines Lb_1, Lb_2,..., Lb_n may extend in a second direction of the second substrate 100, for example, in a horizontal length direction, and may include a plurality of first lines La_1, La_2. ,… La_n) may intersect with each other.

Each of the switches 120 of the handwriting recognition unit 110 crosses each of the plurality of first lines La_1, La_2,..., La_n and each of the plurality of second lines Lb_1, Lb_2,..., Lb_n. It may be located in the formed region, and may be connected to each of the plurality of first lines La_1, La_2,..., La_n and each of the plurality of second lines Lb_1, Lb_2,..., Lb_n. For example, the plurality of switches 120 may be arranged in a matrix shape on the second substrate 100.

2, 3A, and 3B, a first line La_1 may be formed on the second substrate 100, for example, the semiconductor substrate 101. The first line La_1 may be formed to extend in a first direction, for example, a longitudinal length direction, of the semiconductor substrate 101.

The first line La_1 may be externally connected to, for example, the driving unit 151 of the driving unit 150, and may receive a driving signal DS from the driving unit 151.

The first interlayer insulating layer 111 may be formed on the first line La_1 or on the semiconductor substrate 101. The first interlayer insulating layer 111 may be formed of an oxide film or a nitride film.

The second line Lb_1 may be formed on the first interlayer insulating layer 111. The second line Lb_1 may extend in a second direction of the semiconductor substrate 101, for example, in a horizontal length direction.

The second line Lb_1 may be externally connected to, for example, the detection unit 153 of the driving unit 150, and the driving signal DS, for example, the driving unit 151 output according to the switching operation of the switch 120 to be described later. The driving signal DS transmitted to the second line Lb_1 through the first line La_1 and the switch 120 that performs the switching operation may be output to the detector 153.

The second interlayer insulating layer 113 may be formed on the second line Lb_1 or on the first interlayer insulating layer 111. The second interlayer insulating layer 113 may be formed of the same material as the first interlayer insulating layer 111, for example, an oxide film or a nitride film.

The switch 120 may be formed on the second interlayer insulating layer 113. The switch 120 may be composed of an upper switch 123 and a lower switch 121. The upper switch 123 may be spaced apart from the lower switch 121 at a predetermined interval.

In this case, as shown in FIG. 3B, when pressure is applied to the upper switch 123 from the outside, the upper switch 123 may be lowered to be joined to the lower switch 121. This may be referred to as a closed switch state, that is, a state in which the switch 120 is turned on.

In addition, as shown in FIG. 3A, when no pressure is applied to the upper switch 123 from the outside, the upper switch 123 may have an initial state, that is, a state spaced apart from the lower switch 121 at predetermined intervals. have. This may be referred to as an open switch state, that is, a state in which the switch 120 is turned off.

The switch 120 may be connected to the first line La_1 and the second line Lb_1, respectively. For example, the first region of the lower switch 121 may be connected to the first line La_1 through the connection member 115. In addition, the second area of the lower switch 121 may be connected to the second line Lb_1 through the connection member 115.

Accordingly, as described above, when the switch 120 is turned on, the first line La_1 and the second line Lb_1 may be shorted to each other, and when the switch 120 is turned off, The first line La_1 and the second line Lb_1 may be open to each other.

The connection member 115 may be formed between the first line La_1 and the first region of the lower switch 121 or between the second line Lb_1 and the second region of the lower switch 121, respectively. The connection member 115 may be, for example, a via or a plug.

In addition, although not shown in the drawings, a protective film (not shown) for protecting the switch 120 may be further formed on the upper portion of the switch 120, that is, the upper switch 123.

Referring back to FIGS. 1 and 2, the writing recognition unit 110 of the second substrate 100 described above may be connected to the driving unit 150.

The driving unit 150 may include a communication module 157, a driver 151, a detector 153, and an analog-to-digital converter (ADC) 155.

The communication module 157 may be connected to the outside by wire or wirelessly, and may receive a driving signal DS, for example, a current signal from the outside. In this embodiment, as an example, the driving signal DS will be described as an example of a current signal, but is not limited thereto. For example, the driving signal DS may be a voltage signal.

In addition, the communication module 157 may transmit a data signal Data provided from the AD converter 155 to be described later, for example, a user handwriting data signal Data generated by recognizing a user's handwriting input. Here, the user handwriting data signal Data may be a signal obtained by digitally converting an image signal including a text or a picture input from a user, but is not limited thereto.

The driver 151 may be connected to each of the plurality of first lines La_1, La_2,..., La_n of the handwriting recognition unit 110. The driver 151 may provide a driving signal DS provided from the communication module 157 to each of the plurality of first lines La_1, La_2,..., La_n.

The detector 153 may be connected to each of the plurality of second lines Lb_1, Lb_2,... Lb_n of the handwriting recognition unit 110. The detection unit 153 may be configured by a switching operation of at least one of the second lines, for example, the plurality of switches 120, from among the connected second lines Lb_1, Lb_2,..., Lb_n. The driving signal DS may be detected from the second line which is shorted with any one of the one lines La_1, La_2,..., La_n.

The AD converter 155 may analog-digital convert the detection signal provided from the detector 153, that is, the detected driving signal DS ′, and output the converted digital signal, for example, the user handwritten data signal Data.

The user handwriting data signal Data may be provided to the communication module 157, and the communication module 157 may transmit or store the user handwriting data signal Data to the outside and display the same.

Meanwhile, in the present exemplary embodiment, the communication module 157 receives the driving signal DS from the outside to operate the writing input device 300 according to the present invention. However, the present invention is not limited thereto. For example, the handwriting input device 300 may include a small battery such as a battery (not shown), for example, a battery, or the like, and may operate by a driving signal output from the battery. In this case, the communication module 157 may transmit a user handwritten data signal Data generated from the handwriting input device 300 to the outside.

Hereinafter, the operation of the above-described handwriting input device 300 will be described in detail with reference to FIGS. 1 to 3B.

When a user inputs writing to the writing input unit 210 of the writing input device 300, the writing input unit 210 may provide pressure to the writing recognition unit 110 according to the writing input of the user.

As described above, the writing input unit 210 may be formed of a medium such as paper. Accordingly, the user may perform the writing input of the user by using a writing instrument such as a pencil or a ballpoint pen, rather than a dedicated input tool such as an electronic pen.

The handwriting recognition unit 110 may perform a switching operation of each of the plurality of switches 120 according to the pressure provided from the handwriting input unit 210.

For example, referring to FIGS. 1, 2, and 3B, the switch 120 of the handwriting recognition unit 110 may be turned on by a pressure provided from the handwriting input unit 210, that is, a pressure according to a user's handwriting input. have.

Accordingly, the first line La_1 and the second line Lb_1 may be shorted to each other, and the driving signal DS provided from the driver 151 to the first line La_1 is turned on. It may be transmitted to the second line Lb_1 through.

The detector 153 may detect the driving signal DS ′ from the second line Lb_1 and provide the detected driving signal DS ′ to the AD converter 155.

The AD converter 155 may output the user writing data signal Data by analog-to-digital converting the detected driving signal DS ′.

The communication module 157 may transmit, store, or display the user writing data signal Data output from the AD converter 155 to the outside.

1, 2, and 3A, when the user does not write anything on the writing input unit 210, the writing recognition unit 110 does not receive any pressure from the writing input unit 210.

Accordingly, the switch 120 of the handwriting recognition unit 110 may be in an initial state, that is, turned off, and the first line La_1 and the second line Lb_1 may be open to each other.

The driving signal DS provided from the driver 151 to the first line La_1 may not be transmitted to the second line Lb_1 by the switch 120 turned off, and the detector 153 may not be transmitted to the second line Lb_1. No signal, that is, the driving signal DS 'can be detected from Lb_1.

Meanwhile, the handwriting input device 300 of the present invention may generate and transmit a user handwriting data signal Data according to a user's intention.

As an example, when the user merely performs a handwriting input on the handwriting input device 300, the user may disable the driving unit 150 of the handwriting input device 300.

In this case, the handwriting recognition unit 110 may first perform a handwriting recognition operation on the handwriting written by the user in the handwriting input unit 210. For example, the handwriting recognition unit 110 may turn on at least one of the plurality of switches 120 by a pressure provided from the handwriting input unit 210 according to a user's handwriting input. That is, at least one switch 120 of the handwriting recognition unit 110 corresponding to the portions that the user writes on the handwriting input unit 210 may be turned on.

Subsequently, when the user wants to digitally transmit his or her handwriting input, the user may enable the driving unit 150 of the handwriting input device 300.

In this case, the driving unit 151 of the driving unit 150 receives the driving signal DS provided from the communication module 157 by writing the recognition unit 110, that is, the plurality of first lines La_1, of the writing recognition unit 110. La_2,… La_n).

The detector 153 may be shorted with any one first line among the plurality of first lines La_1, La_2,... La_n by the at least one switch 120 that is previously turned on according to a user's handwriting input. The driving signal DS ′ may be detected through one of the second lines Lb_1, Lb_2,..., Lb_n of the second line, and the AD converter 155 may convert the detected driving signal DS ′ into an analogue. The digital conversion may be performed to output the user handwriting data signal Data, and the communication module 157 may transmit the user handwriting data signal Data to the outside.

That is, the handwriting input apparatus 300 according to the present embodiment performs an operation of recognizing the handwriting of the user by the handwriting recognition unit 110 when the user merely performs the handwriting input, and the user later writes his or her handwriting. When transmitting to the outside, the user's handwriting input can be detected and converted into a digital signal. Therefore, the writing input once recorded by the user may be converted into a digital signal and transmitted to the outside at any time according to the intention of the user.

4 is a schematic block diagram of a user handwriting input system including a handwriting input device according to embodiments of the present invention.

Referring to FIG. 4, the user handwriting input system 500 may include a handwriting input device 300 and a server 400.

The handwriting input device 300 is substantially the same as described above with reference to FIGS. 1 to 3B, and thus a detailed description thereof will be omitted.

The server 400 may be a computer system or may be a personal communication terminal of a user.

The handwriting input device 300 and the server 400 may be connected to each other through the communication network 450, and the communication network 450 may be a wireless or wired communication network.

The handwriting input device 300 may generate a user handwriting data signal Data by recognizing a user's handwriting input, and output the user handwriting data signal to the server 400 through the communication network 450.

The server 400 may store user handwritten data signals Data provided through the communication network 450 or display them through a display device such as a computer monitor, a communication terminal monitor, a TV, or the like.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS In order to better understand the drawings cited in the detailed description of the invention, a brief description of each drawing is provided.

1 is a schematic perspective view of a handwriting input device according to an embodiment of the present invention.

FIG. 2 is a schematic block diagram of the handwriting input device shown in FIG. 1.

3A and 3B are schematic cross-sectional views of part A of FIG. 2.

4 is a schematic block diagram of a user handwriting input system including a handwriting input device according to embodiments of the present invention.

Claims (9)

delete A first substrate including a writing input unit for performing a writing input by a user; And A second substrate coupled to a lower portion of the first substrate so as to correspond to the writing input unit, and detecting a pressure generated according to the writing input of the user from the writing input unit to output user writing data; The second substrate, Semiconductor substrates; A plurality of first lines each of which is formed to extend in a first direction on the semiconductor substrate; A plurality of second lines each formed on the semiconductor substrate so as to extend in a second direction across each of the plurality of first lines; And The plurality of first lines may be formed at intersections of each of the plurality of first lines and each of the plurality of second lines, and each of the plurality of first lines may be switched by the pressure generated according to the user's writing input. And a plurality of switches for shorting any one of any one of the plurality of second lines. The method of claim 2, wherein the second substrate, A driver connected to each of the plurality of first lines and providing a driving signal provided from the outside to each of the plurality of first lines; A detector connected to each of the plurality of second lines and detecting the driving signal output through each of the plurality of second lines; And And an AD converter configured to analog-digital convert the detected driving signal to output the user handwritten data signal. The method of claim 3, The detector may be configured to, from any one of the plurality of second lines shorted with any one of the plurality of first lines according to at least one switch of the plurality of switches in accordance with at least one switch operating according to the user's handwriting input. A handwriting input device for detecting the driving signal. The method of claim 3, wherein the second substrate, And a communication module configured to provide the driving signal to the driving unit from the outside or to receive the user writing data signal from the AD converter and to output the driving signal to the outside. server; And A handwriting input device connected to the server by a wire or wirelessly through a communication network and transmitting or storing user handwriting data according to a user's handwriting input to the server, and The handwriting input device, A first substrate including a writing input unit for performing a writing input by the user; And A second substrate coupled to the lower portion of the first substrate so as to correspond to the writing input unit, and detecting a pressure generated according to the writing input of the user from the writing input unit to output the user writing data; The second substrate, Semiconductor substrates; A plurality of first lines each of which is formed to extend in a first direction on the semiconductor substrate; A plurality of second lines each formed on the semiconductor substrate so as to extend in a second direction across each of the plurality of first lines; And The plurality of first lines may be formed at intersections of each of the plurality of first lines and each of the plurality of second lines, and each of the plurality of first lines may be switched by the pressure generated according to the user's writing input. And a plurality of switches for shorting any one of any one of the plurality of second lines. delete A user performing handwriting input to a handwriting input unit of the handwriting input device; And And a handwriting recognition unit detecting pressure generated according to the user's handwriting input from the handwriting input unit and outputting user handwriting data. Detecting the pressure generated according to the user's handwriting input and outputting user handwriting data, Providing, by a driver, a driving signal to each of a plurality of first lines of the writing recognition unit from the outside; At least one switch performing a switching operation among a plurality of switches of the handwriting recognition unit according to a pressure generated according to the user's handwriting input; And A detection unit detecting the driving signal from any one of a plurality of second lines shorted with any one of the plurality of first lines according to a switching operation of the at least one switch; . The method of claim 8, wherein after the detecting unit detects the driving signal, An AD converter analog-to-digital converting the detected drive signal to output the user handwritten data signal; And And transmitting, storing, or displaying the user handwriting data signal by an external communication module.

Images